LCR.iQ/MASTERLOAD.iQ Product Guides

Resources in this Guide

You can easily download PDF editions of the Installation Guide, Setup and Operations Guide, and wiring diagrams by clicking the links below. Otherwise, you may prefer to start with the Register Overview, or proceed directly to browse both the Installation Guide and the Setup and Operation Guide.

Adobe PDF Guides

• Installation Guide
• Setup and Operations Guide

Wiring Diagrams

• Rev E board - Download the full-size wiring diagram.
• Rev J board - Download the full-size wiring diagram.

Register Overview

The Register is a microprocessor-based electronic meter register that can be used for Weights & Measures approved custody transfer actions in mobile or fixed installations. The Register is a self-contained unit. All operation, setup, and configuration functions can be carried out using the Register function keys and alphanumeric keypad. No lap pads, laptops, or other data entry devices are required.

A complete Liquid Controls meter system not only accurately measures product, it also regulates product flow and removes contaminants in order to produce the optimal conditions for measurement. Typical systems include an air/vapor eliminator, strainer, meter, register, and control valve.

Basic Functions

The principle functions of the Register registers include:

• Weights & Measures custody transfer (product delivery and ticket generation)
• Metrological data collection
• Preset deliveries by volume
• Multiple product selection
• Multi-point meter calibration
• Security settings
• Air and vapor elimination (with proper accessories)
• Single and dual stage valve control (with proper accessories)
• Electronic Temperature Volume Compensation (ETVC)

Publication Updates

The most current versions of all Liquid Controls publications are available on our web site, www.LCmeter.com/resources/technical/manuals. If there are questions about the language or interpretation of any LC manuals, instructions, or specification sheets, please first contact your local distributor for help with your inquiry.

For service related issues that require further support from the Liquid Controls Service Team, please call the number below.

Liquid Controls Corporate Office:

• Phone: +1 847 295-1050
• Toll-free: 800 458 5262
• Address: Liquid Controls LLC, 105 Albrecht Drive, Lake Bluff, IL 60044 USA
• Website: www.LCmeter.com

Safety Procedures

BE PREPARED

• Before using this product, read and understand the instructions.
• All work must be performed by qualified personnel trained in the proper application, installation, and maintenance of equipment and/or systems in accordance with all applicable codes and ordinances.
• When handling electronic components/boards, always use proper Electrostatic Discharge (ESD) equipment and follow proper procedures.
• Make sure that all necessary safety precautions have been taken.
• Provide for proper ventilation, temperature control, fire prevention, evacuation, and fire management.
• Provide easy access to appropriate fire extinguishers for your product.
• Consult with your local fire department, state, and local codes to ensure adequate preparation.
• Read this manual and all the literature provided in your owner's packet.
• Save these instructions for future reference.
• Failure to follow the instructions in this publication could result in, personal injury, or death from fire and/or explosion, property damage, or other hazards that may be associated with this type of equipment.

SAFELY EVACUATE PIPING SYSTEM

Before disassembly of any meter or accessory component: ALL INTERNAL PRESSURES MUST BE RELIEVED AND ALL LIQUID DRAINED FROM THE SYSTEM IN ACCORDANCE WITH ALL APPLICABLE PROCEDURES.

• Pressure must be 0 (zero) psi.
• Close all liquid and vapor lines between the meter and liquid source.

Failure to follow this warning could result in property damage, personal injury, or death from fire and/or explosion, or other hazards that may be associated with this type of equipment.

OBSERVE NATIONAL & LOCAL CODES

Power, input, and output (I/O) wiring must be in accordance with the area classification for which it is used (Class I, Div 2). For North America, installations must be per the U. S. National Electrical Code, NFPA 70, or the Canadian Electrical Code in order to maintain Class I, Division 2 ratings. This may require using connections or other adaptations in accordance with the requirements of the authority having jurisdiction.

Peripheral equipment must be suitable for the hazardous location where it is installed. (L'équipement périphérique doit être adapté à la zone dangereuse où il est installé.)

WARNING: Explosion Hazard

When in hazardous locations, turn power OFF before replacing or wiring modules. (Lorsque dans des endroits dangereux, couper le courant avant de remplacer ou de câbler des modules.)

DO NOT disconnect equipment unless power has been switched OFF or the area is known to be Non-Hazardous. (NE PAS déconnecter l'équipement sans couper l'alimentation ou sans s'assurer que la zone est non dangereuse.)

WARNING: Use 3.5 in · lb (0.4 N · m) torque when tightening terminal block screws.

ESD Protection

ESD Precaution

Opening the Registers

Follow this procedure each time you open the Register or approach it with the door open: Before opening the Register and handling the CPU board, it's important to discharge any ESD that may have built up on your person. To discharge ESD from your person, touch a well-grounded point—such as the Register housing, the meter, truck piping, or the bumper. When the maintenance is complete and the Register door is closed, the CPU board is protected from ESD by the Register housing which is grounded to the chassis.

Preventing ESD Damage

To prevent electrostatic discharge (ESD) damage to the Register, truck installations must properly ground the truck seat cushion and the Epson printer chassis. Prolonged exposure to ESD over weeks, months, or years can corrupt register memory and damage the electronic components in Register registers (as well as other electrical components in the truck electrical system).

Adjustable, shock-absorbing seats, if not grounded correctly, generate significant amounts of ESD. The pivots and hinges of these seats isolate the seat cushion from an electrical ground. Without proper bonding, static electric charge builds between the seat cushion and the operator. This electric charge can enter the Register from any point in the truck electrical system, including register power and printer cabling.

Liquid Controls Grounding Kits

All truck installations of the Register must have grounded seats and printers using the following kits:

• Ground Strap Kit (LC Part Number 82185)
• Epson Printer Ground Wire Kit (LC Part Number 82184)

Properly grounded seats allow static electricity to `bleed off' before it can build up, discharge, and damage the Register or other electrical components.

The Epson Printer Ground Wire Kit is included with each Epson printer cable kit shipment. For existing installations and previously purchased registers / printers, both ground kits are available from LC.

Grounding with a Meter Mount or Remote Mount

In an installation where the Register is mounted directly to the meter, the Register housing is grounded through the meter. If the register is not mounted on the meter, you must ensure the Register housing is grounded properly.

Alternate grounding methods for remote mounted registers

For installations where grounding the register housing through a mount is not possible, an external grounding screw hole is available. This hole requires a #8-32 x 1/4" ground screw—which is supplied with the register (the LC part number for the screw is 08254)—and also a 12 gauge or larger stranded wire connected to a known ground (less than 1 ohm).

Another option is to connect the ground screw 8-32 x 1/4" ground screw (inside the Register housing) to a 12 gauge or larger stranded wire connected to a known ground (less than 1 ohm).

Specifications

Mechanical

Housing and Keypad

The Register housing and bases are aluminum die castings with chromate protective finishing and powder coated with high durability, urethane powder. The cover internal hinge design provides easy access to the internal connections and keeps all moving hinge parts out of the elements to further prevent corrosion. Weights and Measures features are accessible by using a seal-able fastener on the side of the cover. There are 11 half-inch NPT ports, on the back of the Register to provide secure cable connections for a wide range of external devices.

Construction Materials

• High grade A360 Die Cast Aluminum, enclosure cover, and enclosure base
• Chromate finish with powder-coat protective coating
• Tempered glass display window
• Silicone display glass seal
• Stainless steel display bracket
• Silicone door seal
• Keypad
• Membrane Switch with back-lit silicone overlay
• Stainless steel fasteners/hardware
• Stainless steel bonded silicone sealing washer

Certified Operational Temperature Rating

• The Register is certified for normal operation within the temperature range of -40 to 140 °F (-40 to 60 °C).

Display

• 7 inch heavy duty, high definition TFT/LCD (Thin Film Transistor Liquid Crystal Display) video display with LED backlight unit.
• 800 x 480 pixels (152.4 mm x 91.4 mm)
• Luminance: 1500 (cd/m2)
• Display acceptable operation or storage temperature -40 °F to 185 °F (-40 °C to 85 °C).

Weight

• Approximately 12 lbs (Meter Mount Version, no added accessories)
• Approximately 11 lbs (Panel Mount Version, no added accessories)

Cable Entry

• Eleven (11), 1/2" NPT (1/2-14 NPT) threaded ports

Alphanumeric Keypad

The Register alphanumeric keypad is made of petroleum resistant silicone and consists of 12 large alpha-numeric keys, 5 navigation keys, and 5 function keys that relate to the adjacent display indicators for operator-guided functionality. The keys, when pressed, give the operator a tactile, positive confirmation of keystrokes. The keypad multi-tap functionality also allows users to input up to four alpha-numeric characters on a single key.

Electrical

Inputs

Inputs are configurable in the Register to handle a variety of external accessories that provide data signals in the metering system including pulse input and a variety of external sensors.

Register Input Voltage

• Voltage: 9 to 28 VDC
• Current maximum: 5 A maximum

Pulse Input

In order to calculate flow measurements when mounted to a positive displacement meter, the Register receives a pulse input from a quadrature pulser that is mechanically connected to the flow meter output shaft (meter mount option only). A pulse input can also come from an external device such as a Liquid Controls Pulse Output Device (POD) or another externally mounted pulse generator. If an external LC POD is purchased, these materials are necessary, but are not supplied with the POD:

• 16-22 AWG 4 conductor Shielded Cable (Consult the POD manual for complete specifications)
• Weather Proof flexible conduit or loom
• ½" Conduit connectors or cable glands

RTD Temperature Probe

The Register is equipped with an input for a temperature probe, so the register can read realtime temperature as well as compensate volume measurements according to the temperature of the product.

• 4 wire platinum sensor
• 100 Ω resistance at 0 °C
• 138.5 Ω resistance at 100 °C

Optical Air Eliminator

The Register is equipped to handle an optical air eliminator input:

• Voltage: 10 to 28 VDC
• Current: 0.5 Amp maximum

Digital Inputs 1, 2, 3, 4, 5, and 6

• Active Low, normally pulled high
• Voltage: 5 to 28 VDC
• Current: 3 mA maximum sink current
• Maximum Frequency: 10 kHz

Outputs

The Register is equipped with six digital outputs and four solenoid outputs. These outputs allow the Register to communicate with meter system accessories such as solenoid-controlled valves, optical air and vapor eliminators, remote displays, printers, and third-party devices.

Digital Outputs 1, 2, 3, 4, 5, and 6

• Open drain output, active low to ground, thermally protected
• Voltage: 5 to 28 VDC
• Current: 500 mA maximum

Outputs for solenoids 1, 2, 3, and 4

• Open drain output, active low to ground, thermally protected
• Voltage: 12 VDC nominal
• Current: 1 A maximum
• Voltage: 24 VDC nominal
• Current: 0.5 A maximum

Pulse Output

• Voltage peak to peak: 5 to 28 V
• Frequency maximum: 7500 Hz

Scale Pulse Output

• Current sinking capability: 150 mA

Electrical Protection

• 5 A fuse on power cable

Communications

• RS-232
• RS-485
• CAN BUS (Consult the applicable Chassis Builder's Guide, available from the truck chassis manufacturer.)
• Ethernet (Gigabit)
• Bluetooth (wireless)
• Wi-Fi (wireless)

Printer (Epson Model 295)

• Voltage: 24 VDC
• Current: 0.8 Amp maximum
• Operating Temperature: -22 to 104 °F (-30 to 40 °C)

Regulatory & Certifications

The equipment is Listed by UL to applicable US and Canadian standards for use in hazardous locations under Liquid Controls file E180172.

LCR.iQ and MASTERLOAD Serial Number tags

Class I

Potentially Explosive Gas/Vapor Atmospheres.

Division 2 and Zone II

Gases and vapor are not normally present in an explosive concentration but may accidentally exist during abnormal operations.

⚠️ This equipment has been found to comply with the European Directive for Equipment For Potentially Explosive Atmospheres 2014/34/EU (ATEX), Certification Scheme for Explosive Atmospheres of INTERNATIONAL ELECTROTECHNICAL COMMISSION (IECEx) and Brazil's Portaria 179, subject to the following condition of safe use: Wipe with damp cloth and de-energize before opening. Certificates (if applicable) are issued by DNV GL and are etched on the tag.

• II: Suitable for use in surface installations.
• 3G: Equipment for explosive gas atmospheres, having a "high" level of protection, which is not a source of ignition in normal operation or during expected malfunctions.
• Ex ec ic: Explosion protection is provided by the increased safety method of protection with the "ec" level of protection.
• GC: Equipment Protection Level level, per IEC 60079-0, EN 60079-0, and ABNT NBR IEC 60079-0. Suitable for installations in Zone 2.
• Grp C&D and Grp IIB: Flammable/explosive Gas groups.
• T4: Temperature class for surface temperature limitations. T4 means that at the point at the rated maximum ambient temperature, the equipment will not generate temperature higher than 135 °C. Safe limits of ambient temperature.
• IP66: Ingress protection: dust-tight and protected against powerful water jetting.
• Type 4X: The enclosure has been evaluated by UL for outdoor use to provide protection against water and dust and an increased level of protection against corrosion; and that will be undamaged by the external formation of ice.
• ✅ Indicates conformity with all applicable Directives for products sold within the European Economic Area.

FCC Compliance

Unique Identifier: LCR.iQ or MASTERLOAD.iQ

Responsible Party: Liquid Controls LLC 105 Albrecht Drive Lake Bluff, IL 60044 USA www.LCmeter.com

FCC Compliance Statement: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

This device contains FCC ID Z64-WL18DBMOD, IC: 451I-WL18DBMOD, and may optionally contain FCC ID MCQ-XBPS3B, IC: 1846A-XBPS3B (DIGI Module).

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Any changes or modifications to this equipment, not expressly approved by Liquid Controls could void the user's authority to operate the equipment.

This device complies with the ISED Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Cet appareil est conforme à la norme RSS exempte de licence d'ISED Canada. L'opération est sous réserve des deux conditions suivantes : (1) Cet appareil ne doit pas causer d'interférences ; et (2) Cet appareil doit accepter toute interférence reçue, y compris les interférences qui peuvent causer un fonctionnement indésirable de l'appareil.

CAN ICES-3(B)/NMB-3(B)

This device could automatically discontinue transmission in case of absence of information to transmit or operational failure. Note that this is not intended to prohibit transmission of control or signaling information or the use of repetitive codes where required by the technology.

The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems.

High power radars are allocated primary users (i.e. priority users) of the bands 5250-5350MHz and 5650-5850MHz and that these radars could cause interference and or damage to the Wi-Fi transceiver.

This equipment complies with the FCC/IC radiation exposure limits set forth for an uncontrolled environment.

Only antennas specified by Liquid Controls shall be used with this equipment.

The antenna for this equipment shall be installed and operated to maintain a separation distance of 20 cm or greater between the antenna and any person.

The antenna for this equipment shall not be co-located with or operated in conjunction with any other antenna or transmitter. The antennas shall be installed and operated to maintain a separation distance of 20 cm or greater between any other radiating antenna.

The FCC ID and IC can also be viewed on the Register by pressing <Main Menu> then <Diagnostics> then <About>.

Dimensions - Panel Mount

FRONT VIEW: Describes the front dimensions and features of the panel mount register.

BACK VIEW: Describes the rear dimensions and features, including port locations.

Dimensions - Meter Mount

Front View: Describes the front dimensions and features of the meter mount register.

Side view: Describes the side dimensions.

Top View: Describes the top dimensions.

Bottom View: Describes the bottom dimensions.

Installation

Check Each Shipment

Before installation, check your shipment against the packing list and ensure that no parts are missing. The packing list is inside the red information packet along with the Installation and Operation Manuals.

If the Register was ordered as part of a metering system, it may arrive mounted on the meter and pre-wired to peripheral equipment such as an ETVC probe, air eliminator, and valve.

Installation overview for Register ordered with meter system:

1. Ground truck seat cushion. See Ground Strap Kit.
2. Install meter system onto truck or fixed installation. Refer to the Meter manual.
3. Run the data and power Cables from the Register to the truck cab or power supply. See Routing Data and Power Cables.
4. Connect any additional components to the Register board.
5. Mount printer and connect printer data cable. See Printers.
6. Connect the Register and the printer to power supply. See Power Supply.
7. Setup and calibrate the Register.

If you are replacing an existing register, you must mount the register onto the meter and make the proper connections to all of the components.

Installation overview for a Register ordered without a meter system:

1. Ground truck seat cushion. See Ground Strap Kit.
2. Mount the Register to the meter. See Mounting Overview.
3. Run the Data and Power Cables from the Register to the truck cab or power supply. See Routing Data and Power Cables.
4. Connect all components to the Register CPU board.
5. Mount printer and connect printer data cable. See Printers.
6. Connect the Register and the printer to power supply. See Power Supply.
7. Setup and calibrate the Register.

What this chapter covers

This chapter explains and details the mechanical installation of the Register and the temperature probe as well as the electrical and data installation of all components that connect to the Register. For additional installation information, refer to the manuals of the other components. All manuals are available at www.LCmeter.com.

Installation requirements will vary

Specific installation requirements will vary with the model of the truck, the physical layout of a fixed installation, the configuration of any existing metering equipment, the options selected, and the type of fluid being metered.

Wiring Diagram

For better viewing of this diagram, click this link to download a high-resolution PDF image: Fullsize wiring diagram.

Ground Strap Kit

All seat cushions are grounded in a similar manner. The illustrations below detail the following instructions for grounding three typical types of truck seats.

ESD Precaution

Install the Ground Strap Kit before installing the register.

Follow these steps to ground a truck seat:

1. Identify any adjustable, shock absorbing seat in the truck cab. These seats will typically have pivot points, hinges, or other mechanical design features that make seat adjustments possible.
2. Grounded Passenger Seats: Some truck seats, typically passenger seats, are not adjustable and do not require grounding.
3. Find an existing screw or hole near the back of the seat frame, close to the cab floor. If a hole or screw does not already exist, drill a 9/32" hole in the seat frame.
4. Attach one end of the ground strap to the seat frame bracket using the lock washer, flat washer and nut provided.

Ensure a Good Ground

Remove any dirt or oxidation from the ground strap contact point. Lock washers should penetrate any paint to ensure a good electrical connection.

4. Find an existing screw or hole, or drill a 9/32" hole, in the part of the seat frame—above all pivots and adjustments—that is attached directly to the seat cushion. Make sure that there are no intervening pivot points, guides, adjustment mechanisms, etc., which could interfere with the ground path between the seat cushion and the ground strap. If the seat cushion has a wooden base, use a wood screw and washer to attach the strap lug to the bottom of the seat at a point where the seat fabric is attached to the wood. There must be good contact between the seat fabric and ground strap lug.
5. Use the wire ties provided with the kit and tie off the strap so that it doesn't interfere with the movement of the seat and is clear of traffic areas in the cab.
6. Check the strap for a good ground connection (see below).

Attach Ground Strap

Typical Adjustable Truck Seats

The diagrams below demonstrate how to attach the ground strap to typical truck seats.

• Air Cushion Seat - Adjustable for Height
• Bench Seats - Adjustable for Distance to the Steering Wheel

Check for a Good Ground

After installing the ground kits, use a multimeter to confirm that the seat and printer are both grounded properly.

Follow these steps to verify a good ground connection:

1. Turn OFF all accessories, including the dome light, to prevent other currents from distorting the reading.
2. Take a multimeter and measure the resistance between the brackets the two ground strap bolts are fastened to. Find a clean spot on the brackets without paint to use as contact points. Other bolts on the brackets are often suitable.

Turn off accessories

If the multimeter reads "M" or "K", typically, one of the accessories is still on.

• If the resistance is less than 3 Ω, the system is grounded adequately.
• If the resistance is still greater than 3 Ω, check for proper metal to metal contact on both ends of the ground strap. Clean any paint, dirt, or oxidation that may block the grounding point. If the resistance remains above 3 Ω, attach the ground strap to a different ground point. Repeat the process until the ground resistance is below 3 Ω.

Verify good contact

If operator receives a ESD discharge when leaving the seat, the ground strap is not installed correctly.

Mounting Overview

The Register is available in two separate mounting options: meter mount and panel mount.

The Register can be mounted directly onto a flow meter; however, it may also be mounted away from the meter in a more ergonomic or advantageous position, on a control panel or control pedestal. If the meter is equipped with an external POD pulser, the Register can be mounted up to 1000 feet (304 meters) away from the meter (actual distance depends on pulser specifications and wire type).

• The meter mount design consists of an enclosure base with a round mounting surface that mates perfectly with standard LC register adapter bracket or industry standard register mount and can be mounted in 45° increments.
• The panel mount design consists of an enclosure base with mounting tabs to allow the register to be conveniently mounted on a flat panel from the front or rear of the panel for a very clean and wire-free installation from the operator's point of view.

Meter Mount Housing

Description of the meter mount housing features.

Panel Mount Housing

Description of the panel mount housing features.

Adapters are available for other PD meters such as Neptune (PNs 81364, 82641, 82642), FMC Smith (PN 81370), and Brooks/Brodie (PN 81800) meters. Each kit includes installation instructions.

Tips for mounting a Register

• Leave the cover assembly fastened to the base to protect the internal components.
• Ensure that the vertical drive shaft from the meter is attached to the pulser drive shafts.
• Before securing the Register to the meter or mounting bracket, ensure that the counter is visible and the keypad and calibration screw can be easily operated.

WARNING

Relieving Internal Pressure

All internal pressure must be relieved to zero pressure before disassembly or inspection of the strainer, vapor eliminator, any valves in the system, the packing gland, and the front or rear covers.

WARNING: Serious injury or death from fire or explosion could result in performing maintenance on an improperly depressurized and evacuated system.

Relieving Internal Pressure Procedure for LPG and NH3 Meters

Follow these steps:

1. Close the belly valve of the supply tank.
2. Close the valve on the vapor return line.
3. Close the manual valve in the supply line on the inlet side of the meter. If no manual valve exists on the inlet side, consult the truck manufacturer for procedures to depressurize the system.
4. Slowly open the valve/nozzle at the end of the supply line.
5. After product has bled off, close the valve/nozzle at the end of the supply line.
6. Slowly crack the fitting on top of the differential valve to relieve product pressure in the system. Product will drain from the meter system.
7. As product is bleeding from the differential valve, slowly reopen and close the valve/nozzle on the discharge line. Repeat this step until the product stops draining from the differential valve and discharge line valve/nozzle.
8. Leave the discharge line valve/nozzle open while working on the system.

APPLY Anti-seize

Always apply anti-seize to all bolt threads to ensure easy removal at a later date.

Mounting the Register

Mounting Bolt Pattern

The Register base housing contains eight bolt holes in an industry standard bolt pattern. This design allows for horizontal rotation of the housing in 45° increments to conveniently mount the register in various orientations. The holes are ½" deep and take ½"-20 screws.

If the installation requires that you fabricate a bracket, refer to the drawing below.

Installing the Register on existing LC meter installations

Remove Existing Registration Equipment

Follow these steps:

1. Depressurize the meter completely. See the Warnings in Mounting Overview.
2. Remove the four bolts on the bottom that fasten the register to the meter.
3. If replacing a mechanical register, remove the adjuster from the meter.
4. If the meter has a Temperature Volume Compensator (TVC), remove it as well.

Mount the Register

Follow these steps:

1. Place the end of the shaft adapter on the pulser drive shaft located on the bottom of the register.
2. Place the cotter pin through the hole, and bend open the ends of the cotter pin.
3. Lower the register onto the meter, and insert the shaft adapter onto the hex shaft on the meter.
4. Securely bolt down the register.

Apply Anti-seize

Apply anti-seize to all bolt threads to ensure easy removal at a later date.

Neptune Meters

Remove Existing Registration Equipment

Follow these steps:

1. Depressurize the meter completely. See the Warnings in Mounting Overview.
2. Remove the mechanical register from the meter.
3. Leave the star-shaped gear and the two square-head studs.
4. Remove the bellows from the front of the meter.
5. Remove the compensator.

Mount the Register

Follow these steps:

1. Install the drive fork and extension piece (pictured below) on the pulser drive shaft located on the bottom of the Register.
2. Install the bracket on the meter, and fasten with the bolts provided in the kit.
3. Lower the Register on to the bracket, and securely fasten using the four bolts (½" x ½") provided.

Star Gear and Drive Fork

When the register is lowered onto a Neptune meter, make sure the drive fork is not pressed against the star gear on the meter. There must be a small gap between these two parts. To lower the star gear, loosen the set screw on the side of the star gear. Failure to do so will eventually damage the internal pulser and/or the meter gear train.

APPLY Anti-seize

Apply anti-seize to all bolt threads to ensure easy removal at a later date.

Mount the Register on previously temperature compensated Neptune meters

Follow these steps:

1. Place the shaft adapter on the pulser drive shaft under the Register.
2. Place the cotter pin through the hole, and bend open the ends of the cotter pin.
3. Pass the other end of the shaft adapter through the flange assembly and the weather plate.
4. Loosely bolt to register.
5. Place the drive fork and extension piece on the shaft using two more cotter pins.
6. Bolt the flange to the meter and tighten all bolts.

Installation kits 82641 (E-26 series) & 82642 (E-36 series) are specifically designed for previously temperature compensated Neptune meters.

Routing the Data and Power Cables

Data and Power Cable

The Register shipment typically includes a gray 50-foot power cable and a 50-foot black data cable, pre-wired to terminal blocks on the Register CPU board. On typical truck installations, the cables must be routed from the back of the truck—where the Register is installed—to the front of the truck, where the accessory panel is and the printer is typically installed. The black data cable connects to the printer, typically mounted in the truck cab. The gray power cable hooks up to a power source. During installation, follow these guidelines and ensure the cables remain undamaged.

During installation, follow these guidelines and ensure the cables remain undamaged.

Guidelines for routing the data and power cables on the outside of the truck

• LC recommends that both cables be run through 1/2" automotive plastic corrugated split loom or through flexible liquid-tight conduit for protection.
• Make sure the loom or conduit runs down the inside edge of the trucks frame rail and fasten every 2' with cable ties.
• Install rubber grommets to protect the cables where they pass through the cab wall, meter box, etc.
• Keep the cables away from heat sources such as the engine exhaust, manifold, exhaust pipe, mufflers, etc.
• Keep cables away from moving suspension components and other moving truck components.
• If the cables are shortened, ensure that you use the proper tool for stripping off the insulation on the cables.
• Ensure that all cabling and wiring connections are connected to the proper terminal locations.

Guidelines for routing the data and power cables inside the cab

• Before you begin, layout positions for the component and pathways for the cable.
• Ensure that the printer and the wires will not obstruct other vehicle components.
• Keep cable pathways away from heavy traffic areas and locations where they may be vulnerable to damage.
• Remember to provide plenty of room around the components, so the cables can be easily connected.
• Avoid installing the cable where it will be exposed to excessive flexing.
• Ensure that cables are not pulled too tight in areas that will move. For example, when wiring cab-over trucks, leave enough slack so the cab can be tilted without damaging the cable.
• Ensure cables are not fastened to adjustable seats.

ETVC Installation

Electronic Temperature Volume Compensation (ETVC) Installation

When ordered as part of a meter system with a Register, the ETVC kit is typically bolted onto the strainer and wired to the Register at the factory. ETVC kits can also be ordered and retrofit onto meter systems already in service. Kits are specified according to meter size and application and are all installed in the same manner. For meter systems that do not include an LC supplied Strainer mounting kit, Liquid Controls also offers an ETVC kit for pipe mount.

A conduit kit (PN 81024)—with a 30-inch length of weatherproof flexible conduit—is available from Liquid Controls to provide protection for the RTD temperature probe wire between the strainer cover and the Register.

Follow these steps to install the ETVC kit:

1. Depressurize the meter completely. See the Warnings in Mounting Overview.
2. Remove the old strainer cover.
3. Clean the strainer basket and replace it into the housing.
4. Lightly coat the new cover gasket (included with the ETVC kit) with lubricant. DO NOT use the included copper grease.
5. Fit the new cover gasket into the strainer cover groove.
6. Bolt the strainer cover in place. Make sure the weights & measures Thermowell port is at the top of the cover.
7. Assemble the Thermowell kit.
8. Coat the entire probe length with the copper grease provided. Insert and recoat the probe 2 or 3 times to provide a uniform coating inside the Thermowell and to ensure proper heat transfer from the liquid to the probe.
9. Connect the assembled Thermowell to the fitting in the middle of the strainer cover. The angled fitting at the top of the cover is for weights & measures purposes. See Step 6 above.
10. Connect the conduit to a ½" NPT port on the back of the Register using the elbow fittings provided with the conduit kit (PN 81024). Be sure to use thread sealant on NPT threads.
11. Wire the temperature probe to the Register internal board on connector J15. See the circuit board diagrams below.

Disconnect Power

Disconnect the power before working with the CPU board.

Diagram for Rev E boards

Description of Rev E board connections.

Diagram for Rev J or later boards

Description of Rev J or later board connections.

Input and Output Setup

Digital Inputs

LCR.iQ digital inputs are active-low, which means the input signal is normally high unless it is forced low by an external device. Each digital input is pulled high through a 2200-ohm resistor to supply voltage. Devices connected to an LCR.iQ digital input must be able to sink the following current:

• 18 mA for 24-volt electrical systems
• 7.3 mA for 12-volt electrical systems

Examples of external devices include:

• Input pulser channels (pulse train signals, up to 10 kHz).
• Optical Air Eliminator sensor (output low when no air present). Any device which sets an output to ground, such as a relay or solid-state switch.

Solid-state switches may be either of the "totem-pole" or "open drain" type.

WARNING

Although the digital input signal lines contain protection against high-voltage transients, an active signal should not exceed the main supply voltage value.

Digital Input 7

Digital Input 7 is reserved for low-speed signals as used by Liquid Controls optical Air/Vapor eliminator.

Digital Outputs

LCR.iQ digital outputs are `active-low open drain', which means the output signal is normally high. The digital outputs provide a path to ground for devices powered by the systems supply voltage.

Each digital output is pulled high by an internal resistor. This provides a method to check for proper operation of a digital output with no load attached. Connecting a voltmeter to the desired port and ground will verify proper operation of the digital output:

• If the voltage is high (vehicle battery), the output is inactive.
• If the voltage is low (less than 1 volt), the output is active.

Each digital output contains a diode clamp, so connecting inductive loads (such as relay coils or solenoids) will not damage the register electronics.

Each digital output is also protected against accidental faults to battery or ground. If a fault occurs, the output shuts down automatically. The output resumes normal operation after clearing the fault.

Examples of digital outputs include:

• Calibrated Pulse Output: Select the desired digital output line (D-OUT-1 through DOUT-6) and desired scale factor.
• Liquid Controls XL Display (E1615): Set two of the digital outputs (D-OUT-1 through DOUT-6) to LC Display A and LC Display B when utilizing the XL Displays digital signal. Both channels A and B are required for operation.
• Relay coil: to control high-current loads.

Solenoid Outputs

LCR.iQ solenoid outputs are active-low open drain, which means the output signal is normally high. The solenoid outputs provide a path to ground for devices powered by the systems supply voltage.

Each solenoid output is pulled high by an internal resistor. This provides a method to check for proper operation of a solenoid output with no load attached. Connecting a voltmeter to the desired port and ground will verify proper operation of the digital output:

• If the voltage is high (vehicle battery), the output is inactive.
• If the voltage is low (less than 1 volt), the output is active.

Each digital output contains a diode clamp, so connecting inductive loads (such as relay coils or solenoids) will not damage the register electronics.

Each solenoid output is also protected against accidental faults to battery or ground. If a fault occurs, the output shuts down automatically. The output resumes normal operation after clearing the fault.

Examples of solenoid outputs include:

• Single stage and Two stage valve control solenoids
• Vapor purge valve solenoids for optical Air Elimination

Analog Input (LCR.iQ)

The LCR.iQ register has one 4-20 mA current loop input. This input can accommodate loop powered sensors, or sensors that require separate DC power connections.

Examples of analog input sensors include:

• Water detection in fuel
• Tank level (Near Future)

LCR.iQ Analog Input – Loop Powered Sensor using Onboard DC Power:

The diagram shows how to connect a loop-powered sensor to a 4-20 mA analog input channel, using the voltage available from the register power bus.

Use the Digital Output terminal block to obtain DC power for the sensor. Voltage on the +VP terminal will be the same as the register power supply voltage. See the diagram below.

Refer to the sensor manufacturer's installation manual for specific connection details.

WARNING

Do not connect a sensor rated for +12V to a register operating from a +24 V power supply. Use a separate +12V DC power supply to properly operate the sensor.

LCR.iQ Analog Input - Loop-Powered Sensor with External Power Supply

The diagram below shows how to connect a loop- powered sensor to a 4-20 mA analog input channel, using an external DC power supply.

Refer to the sensor manufacturer's installation manual for specific connection details.

Power Supply Rating

Use an external DC power supply with the proper rating for the sensor. Connect the ground wire as shown in the diagram below to make a stable voltage reference.

LCR.iQ Analog Input – 3-Wire Sensor

The diagram shows how to connect a three-wire sensor to a 4-20 mA analog input channel, with DC power provided by the register.

Use the Digital Output terminal block to obtain DC power for the sensor. Voltage on the +VP terminal will be the same as the register power supply voltage.

Refer to the sensor manufacturer's installation manual for specific connection details.

WARNING

Do not connect a sensor rated for +12V to a register operating from a +24 V power supply. Use a separate +12V DC power supply to properly operate the sensor.

LCR.iQ Analog Input – 4-Wire Sensor

The diagram shows how to connect a four-wire sensor to a 4-20 mA analog input channel, with DC power provided by the register.

Use the Digital Output terminal block to obtain DC power for the sensor. Voltage on the +VP terminal will be the same as the register power supply voltage.

Refer to the sensor manufacturer's installation manual for specific connection details.

WARNING

Do not connect a sensor rated for +12V to a register operating from a +24 V power supply. Use a separate +12V DC power supply to properly operate the sensor.

Valves

When ordered as part of a meter system with a Register, Liquid Controls control valves are bolted onto the meter and wired to the Register at the factory. Electronic control valves can also be ordered separately and retrofitted onto meter systems already in service. These valves will need to be piped and wired in the field. For piping instructions, refer to the valve manual. This manual includes wiring instructions for the valves.

Liquid Controls offers single-stage and two-stage electronic valves. Single stage valves have one solenoid valve (S1) and two positions—an open position and a closed position. Two-stage valves have two solenoid valves (S1 & S2) and three positions—open, closed, and dwell flow. Dwell flow is a low flow rate setting controlled by the S2 solenoid and initiated shortly before the register reaches a preset value.

Compatibility

The Register is also compatible with many other brands and types of valves.

This chapter covers:

• Single-Stage Valves
• Two-Stage Valves
• Valve Installation

Single-Stage Valves

The three most common Liquid Controls meter systems with single stage valves include:

• a block valve with a S1 solenoid-operated valve fitted onto external piping (A2847-11),
• a block valve (A2843) with a 3-way solenoid
• and an electro-pneumatic valve with an S1 solenoid

A2847-11 Valve

This single stage control valve has a S1 solenoid operated valve located at the meeting point of three external pipes: one pipe from the inlet side of the valve, one from the top of the block valve, and one from the outlet side of the valve. This valve is typically used in refined fuels applications.

A2843 Valve and 3-Way Solenoid

The 3-way solenoid-operated valve—mounted directly to the top center port on the back of the Register—serves as a S1 solenoid-operated valve. The 3-way solenoid-operated valve is located at the meeting point of two lines from the vapor eliminator (one for eliminated vapor and one leading to the vapor return line) and one pipe to the top of the block valve. 3-way solenoid operated valves are typically specified for products that hold vapor in the line such as LPG and NH3.

A2700 Series Electro-Pneumatic Valve

Pneumatic valves use a S1 solenoid-operated valve, mounted to a pneumatic actuator to open and close a V-7 valve. These valves are typically used in high viscosity applications, such as lube oil.

Two-Stage Valves

The three most common Liquid Controls meter systems with two stage valves are:

• a block valve with a S1 and a S2 solenoid-operated valve fitted onto external piping (A2848-11)
• a block valve with a S2 solenoid-operated valve (A2859-11) and a 3-way solenoid on the Register.
• and an E-7 valve with a S1 and a S2 solenoid-operated valve

A2848-11 Valve

This two stage control valve has a S1 and a S2 solenoid operated valve. The S1 solenoid-operated valve is located at the meeting point of three bypass pipes: one pipe from the inlet side of the valve, one from the top of the block valve, and one from the outlet side of the valve. The S2 solenoid valve is located on a bypass pipe that connects the inlet and outlet sides of the control valve. It opens while the control valve is closed to supply the dwell flow. This valve is typically used in refined fuels applications.

A2859-11 Valve and 3-Way Solenoid

A two- stage valve with a S2 solenoid-operated valve and a 3-way solenoid valve attached to the back of the Register. The 3-way solenoid-operated valve is located at the meeting point of two pipes from the vapor eliminator (one for eliminated vapor and one leading to the spit tank) and one pipe to the top of the block valve. The S2 solenoid valve is located on a bypass pipe that connects the inlet and outlet sides of the control valve. It opens while the control valve is closed to supply the dwell flow. This configuration is typically specified for products that hold vapor in the line such as LPG and NH3.

E-7 Valves

A two stage valve with a S1 and a S2 solenoid-operated valve. The E-7 valve is fitted with one external pipe to divert product flow to the closing mechanism. To supply a dwell flow, the E-7 redirects the product around the closed valve using channels molded into its housing. This valve is typically used in refined fuels applications and has the same dimensions as the V7/K7 valve.

Valve Installation

If you install the valve yourself, refer to the valve installation and operation manual for mechanical installation. Instructions for wiring Liquid Controls valves to the Register can be found below.

Materials needed for wiring valves

These materials are necessary, but are not supplied with the valve:

• 16-22 AWG 4 conductor Shielded Cable (Consult the POD manual for complete specifications)
• Weather Proof flexible conduit or loom
• ½" Conduit connectors or cable glands
• PTFE tape or thread sealant

Disconnect Power

Disconnect the power before working on the CPU board.

Follow these steps to wire valves to the Register:

1. Attach cable glands and/or conduit connectors to the solenoid valve(s) and the Register port(s). Be sure to use thread sealant on NPT threads.
2. Thread the wires through piece of weatherproof conduit that is cut-to-length from the solenoid to a Register port.
3. Run the weatherproof conduit between the solenoid operated valve(s) and the Register housing, pull the wires through the ports, and tighten the connectors.
4. Connect the S1 solenoid-operated valve wires to terminals 23 and 24 on the J3 terminal block of the Register CPU board.
5. Connect the S2 solenoid-operated valve wires to terminals 17 and 18 on the J13 terminal block of the Register CPU board.

Earth Grounds for Solenoid Valves

The Earth grounds for Terminals 16 & 19 are optional. The solenoid operated valves are grounded through the component they are mounted on. Follow this diagram as the guide to wiring a single stage valve for presetting:

Solenoid Operated Valve Cables

The 81527 solenoid operated valve (3-way LPG solenoid) has 3 cables potted into the housing. All other solenoid operated valves on Liquid Controls valves use cable assembly 81859, which has 2 cables.

Valves with 110VAC Solenoids

In order for the Register to control valves with solenoids on 110 VAC circuits, you must install a relay switch on the positive leg of the solenoid's circuit.

Relay switch specifications

• Switch: SPST (single pole, single throw)
• Switch Position: Normally open
• Contact Rating: Greater than maximum current of solenoid
• Voltage: +12 VDC

Materials needed for wiring valves with 110 VAC solenoids

These materials are necessary, but are not supplied with the valve:

• SPST relay switch (1 per solenoid)
• 20 AWG stranded wire (2 per solenoid)
• Weatherproof flexible conduit, ½" diameter and ½" NPT conduit connectors or cable glands
• PTFE tape or pipe sealant

To wire 110 VA C solenoids to the Register

Follow these steps:

1. Turn off all 110 VAC circuits before beginning the installation.
2. Install the specified relay switch(es) onto one leg of the 110 solenoid power supply circuit.
3. Connect the relay switch on the S1 power supply circuit to terminals 23 and 24 on block J3.
4. Connect the relay switch on the S2 power supply circuit to terminals 20 and 21 on block J3.

Disconnect Power (110VAC)

Turn off all 110VAC circuits before beginning the installation.

Optical Air and Vapor Eliminators

Optical Air and Vapor Eliminator Installations

When ordered as part of a meter system with a Register, the Liquid Control optical air and vapor eliminators are bolted onto the strainer and wired to the Register at the factory. Optical air and vapor eliminators can also be ordered separately and installed onto meter systems already in service. For mechanical installation instructions, refer to the manual specific to the optical air and vapor eliminator. Instructions for wiring optical air and vapor eliminators to the Register are provided below.

Optical Air Eliminator (Refined Fuels)

Description of the optical air eliminator for refined fuels.

Optical Vapor Eliminator (LPG and NH3)

Description of the optical vapor eliminator for LPG and NH3.

Materials needed for wiring valves

These materials are necessary, but are not supplied with the valve:

• 20 AWG stranded wire—3 per solenoid. Unnecessary for 3-way solenoid valves. Only 2 are necessary for E7 solenoids.
• Weatherproof flexible conduit, ½" diameter.
• ½" NPT conduit connectors or cable glands.
• PTFE tape or pipe sealant.

M7 meter system with optical air eliminator

Diagram showing M7 meter system with optical air eliminator.

Wire optical air and vapor eliminators to the Register

Refer to the figure below, and follow these steps:

1. Attach cable glands and/or conduit connectors to the S3 solenoid valve, the optical sensor, and the Register ports. Be sure to use thread sealant on NPT threads.
2. Thread the 20 AWG wires through a piece of weatherproof conduit cut-to-length from the S3 solenoid to a Register port.
3. Run the weatherproof conduit between the S3 solenoid operated valve and the Register housing. Pull the wires through the ports, and tighten the connectors. Liquid Controls recommends running the optical sensor wire through weatherproof conduit as well.
4. Connect the two 20 AWG wires to the S3 solenoid operated valve terminals and to terminals 17 and 18 on the J2 terminal block of the Register board.
5. Connect the optical sensor wires to terminals 10, 11, and 12 on the J2 terminal block of the Register board.

Disconnect Power

Disconnect the power before working on the CPU board.

Pulse Output Device

Pulse Output Device (POD) Installation

When ordered as part of a meter system with a Register, the Liquid Controls Pulse Output Device (POD) is typically installed onto the meter and wired to the Register at the factory. The POD can also be ordered separately and installed onto meter systems already in service. For mechanical installation instructions, refer to the POD manual. Instructions for wiring the POD to the Register are given below.

Disconnect Power

Disconnect the power before working on the CPU board.

These materials are necessary, but are not supplied with the POD:

• 16-22 AWG 4 conductor Shielded Cable (Consult the POD manual for complete specifications)
• Weather Proof flexible conduit or loom
• ½" Conduit connectors or cable glands
• PTFE tape or thread sealant

Follow these steps to wire a POD to the Register:

1. Go to Main Menu / Setup Menu / Meter Settings. Make sure Pulser Input Type is set to Dual Channel.
2. Attach cable glands and/or conduit connectors to the POD and the Register port(s). Make sure to use thread sealant on NPT threads.
3. Thread the wires through a piece of weatherproof conduit cut-to-length from the POD port to a Register port.
4. Run the weatherproof conduit between the POD and the Register housing, pull the wires through the ports, and tighten the connectors.
5. Connect the four POD terminals to four terminals on the J11 terminal block of the Register CPU board.
   • POD terminal 20 to Register terminal 70
   • POD terminal 21 to Register terminal 68
   • POD terminal 22 to Register terminal 69
   • POD terminal 23 to Register terminal 63

Single Channel Pulse Inputs

The Register is compatible with many single channel pulse output devices.

To wire a single channel pulse output to the Register:

1. Go to Main Menu / Setup Menu / Meter Settings. Select Pulse Input Type, Single Channel.
2. Connect the three pulser terminals (V out, Channel A, and ground) as follows:
   • Pulser channel A to Register terminal 69
   • Pulser voltage out to Register terminal 70
   • Pulser ground to Register terminal 63

Differential Pressure Transducer

Differential Pressure (P) Transducer Installation

When ordered as part of a meter system with a Register, the Liquid Control P transducer is wired to the Register at the factory. The P transducer can also be ordered separately and installed onto a meter system already in service. Refer to the P transducer manual for complete installation instructions. Instructions for wiring the P transducer to the Register can be found below.

Typically, a P transducer operates together with a shutdown device, such as a valve or a dead-man.

Follow these steps to wire P Transducer to the Register:

1. Route the P transducer cable through a cable gland in a port on the back of the Register. Secure the cable gland. LC recommends running the cable through weatherproof conduit. Make sure to use thread sealant on NPT threads.
2. Connect the four P transducer wires to terminals to the recommended Register terminals as follows:
   • +VP / Black to terminal 12
   • GND / White (Ground) to 36
   • B / Yellow to terminal 38
   • A / Blue to terminal 37
3. Route a two-wire cable from the shutdown control device through a cable gland in a port on the back of the Register. Secure the cable gland. Make sure to use thread sealant on NPT threads. Liquid Controls recommends running the cable through weatherproof conduit.
4. Connect the two wires from the shutdown control device to terminals 23 (S1) and 24 (+VP).

Current Draw on Shutdown Device

The shutdown device should draw no more than 1 Amp.

Water Detectors

The LCR.iQ and MASTERLOAD.iQ registers are capable of integrating industry approved water detection devices to meet aviation JiG safety standards regarding water in fuel. This manual describes the setup and configuration process of integrating a water detector which relies on 4-20mA analog communication.

Compatibility

Water Detectors are compatible with LCR.iQ and MASTERLOAD.iQ registers with I/O boards Revision J or greater.

NOTE: To identify which board you have, examine the board types given in Interface Board Identification.

Follow these steps below to install and configure a water detector.

Step 1 – Enter the Calibration mode for the Register by rotating the W&M screw counterclockwise.

Step 2 – Enable the Water Sensor service:

1. Open the I/O Setup screen in the Setup Menu.
2. Open the Services screen by pressing the Services hot key.
3. Select the Water Service field by pressing Up or Down keys and then Press Enter.
4. Select Yes and press the OK key.
5. Return to the I/O Setup screen by pressing the Close hot key.

Step 3 – Setup the Water Service parameters for the Analog Port of the I/O board to which the water sensor is connected. The water sensor is using the 4-20 mA current loop for its operation. The register fields related to water sensor operation can be accessed from I/O Setup screen 3:

1. Open I/O Setup screen 3 by pressing the Right or Left arrow key.
2. Select the Analog Input ANA field by pressing the Up or Down key.
3. Press the OK key and enter the Name of the input. Press the OK key.
4. Enter the Analog Input Setup screen by pressing the Sensor Setup hot key.
5. Select the Sensor Type field, press the OK key, and select Water Sensor from the pulldown list. Press the OK key.
6. Select the Unit of Measure field, and then select PPM as a unit of measure to be used for water level detection.
7. Activate the alarm actions when the analog input current is out of the required range. To activate the alarm, select either the <4mA or >20mA field and choose Error from the pulldown list. Press the OK key.
8. Set the water level associated with a 4mA input current. Select the 4mA is field, press the OK key, and set the value of the water level to 0. Press the OK key.
9. Set the water level associated with a 20mA input current. Select the 20mA is field, press the OK key, and set the value of the water level to 50. Press the OK key.
10. Set the time in seconds required for the water level to continuously be at the selected level before the alarm actions will be activated. Select the Analog Error Delay field, press the OK key, and enter the time in a range from 0 to 10 seconds. Press the OK key.
11. Choose what water levels detected during delivery will be printed on the delivery ticket. The average, low, or high levels can be printed by selecting the Yes options for those fields. Typically, high is set to Yes, and average and low are set to No.
12. Set the parameters for the first trigger to be used to monitor the water level during delivery:
    • Select the first trigger field and press OK key.
    • Select if an action has to occur when the water level is above or below the corresponding trigger level.
    • Select the Above option from the pulldown list and press the OK key.
    • Enter a trigger threshold of 15 and press the OK key.
    • Select the delivery action to be taken when the trigger occurs. Select the Stop option from the pulldown list and press the OK key.
    • Select the Digital Output of the I/O board to be used with the trigger. Outputs from 1 to 6 can be used.

    NOTE: Ensure that the selected output has not been used for different actions of the register. Use the pulldown list to select the desired output.

13. Set the parameters for the second trigger to be used to monitor the water level during delivery:
    • Select the second trigger field and press OK key.
    • Select if an action has to occur when the water level is above or below the corresponding trigger level.
    • Select the Above option from the pulldown list and press the OK key.
    • Enter a trigger threshold of 30 and press the OK key.
    • Select the delivery action to be taken when the trigger occurs. Select the End option from the pulldown list and press the OK key.
    • Select the Digital Output of the I/O board to be used with the trigger. The output should be the same as the one selected for the first trigger.
14. If desired, select and configure another trigger. Up to 4 different triggers can be configured for the Analog Input of the I/O board.
15. Complete the Analog Input Setup by pressing the Close hot key.

Printers

Printer Installation (J1 RS-232)

A Liquid Controls meter system with a Register typically includes an Epson slip printer or roll printer. The installation is the same for either printer.

See instructions in Routing Data and Power Cables for routing the data cable from the back of the truck to the cab.

Disconnect Power

Disconnect the power before working on the CPU board.

To wire a Printer to the Register:

1. Go to Main Menu / Setup Menu / Register Settings (3/3) - Printer Type. Ensure proper printer is selected in the drop down selection field.
2. Attach cable glands and/or conduit connectors to the Register port. Make sure to use thread sealant on NPT threads.
3. Connect the wires to the J13 and J14 terminal blocks of the Register board.
   • GND / Black to terminal 80
   • CTS / Blue to terminal 81
   • RXD / Yellow to terminal 82
   • TXD / Orange to terminal 83
   • RTS / Brown to terminal 84
   • RTS / Red to terminal 92
   • TXD / Violet to terminal 91
   • RXD / Gray to terminal 90
   • CTS / Green to terminal 89
   • GND / White to terminal 88

Routing Data Cables

See the instructions on Routing Data and Power Cables for routing the data cable from the back of the truck to the cab.

To install the printer:

1. Mount the printer in the truck cab where drivers can easily operate it.
2. Clean the mounting spot and the bottom of the printer with alcohol for the best adhesion.
3. Attach Velcro to the mounting area and the bottom of the printer. Fasten the printer to the mounting area.
4. Connect the data cable to the RS-232 data port on the back of the printer.

Connecting Power

To connect power to the printer, see Power Supply.

Epson Printer Ground Wire Kit Installation

Before connecting power to the Register and the Epson printer, ground the printer to the truck cab floor. Epson printers sold for truck installations are all grounded in the same manner.

• 82184 Epson Printer Ground Wire Kit

Follow these steps to ground an Epson printer:

1. Remove one of the mounting bolts that fasten the printer mounting brackets to the truck cab floor.
2. Place one end terminal of the ground wire over the mounting bolt and return the bolt to its original place.
3. At the back of the Epson printer, remove the silver ground screw marked "FG".
4. Place the other end terminal of the ground wire over the ground screw and return the screw to its original place.
5. Check the strap for a good ground connection (see page 13).

Additional Terminal brackets that are not purchased from Liquid Controls.

Large-Digit Remote Display

The LectroCount® Large-Digit Remote Display can be used with the LCR.iQ and MASTERLOAD.iQ registers to provide long range visibility of either Flow Rate or Delivery Volume Quantity. In calibration mode, the LC Remote Display will display the Measured Quantity when Quantity is selected for LC Remote Display Value.

The sections below explain how to make the electrical connections and then configure the remote display.

Electrical Connections - Connecting the E1615 Remote Display to the E6000 LCR.iQ Register

24V DC Power

If the DC voltage to the LCR.iQ exceeds 24 V, the remote display must be powered from a separate DC-to-DC converter which provides 12 to 24 V.

Follow these steps to connect the remote display to the E6000 register:

1. Open the LCR.iQ register.
2. Attach a cable gland to a port on the LCR.iQ electronic register.
3. Route the shielded cable through the cable gland and into the LCR.iQ register housing.

Shielded Cable

The LectroCount XL LED Remote Display is supplied with a 30 foot 4-wire shielded cable with 22 gauge wire. If alternate cabling is required, Liquid Controls recommends a similar 4-wire shielded cable with 22 gauge wire or larger and a maximum cable length of 30 feet.

4. Connect the four wires of the display's shielded cable to the four designated terminals on the J9 terminal block on the LCR.iQ CPU board:
   • XL LED terminal 53 (red wire) to LCR.iQ terminal 54
   • XL LED terminal 54 (white wire) to LCR.iQ terminal 48
   • XL LED terminal 55 (green wire) to LCR.iQ terminal 49
   • XL LED terminal 56 (black wire) to LCR.iQ terminal 47

J1 Jumper – LectroCount XL LED Remote Display

For proper operation, install a jumper between terminal 52 and 53 on the display's J1 terminal block. Display units from the factory include the jumper. Ensure the jumper is in place when rewiring the display.

5. Tighten the cable gland and close the LCR.iQ register.

Configure the remote display

Follow these steps to configure the remote display:

1. Navigate to the I/O Setup from the Setup Menu screen and press OK.
2. Navigate to the I/O Setup (4/4) screen.
3. Select the D-OUT to which the Green wire is connected and set it to LC XLDisplay A.
4. Select the D-OUT to which the White wire is connected and set it to LC XLDisplay B.
5. Navigate to the Setup Menu screen and press OK.
6. Navigate to the Meter option and press OK.
7. Navigate to the Meter (3/3) screen.
8. Select the LC Remote Display Value option and press OK.
9. Select either the Flow Rate or Quantity option.

Power Supply

When you have made all of the data connections and complete installation of all components, connect the power to the Register and the Epson printer. Before making the power connections, go through the vehicle system checklist below, and ensure that the electrical system of the truck meets the minimum requirements for powering the Register and the Epson printer.

Vehicle System Checklist

• Clean any corrosion from the battery terminals and battery cable to guarantee a solid, tight connection.
• Charge the battery according to manufacturer specifications.
• Ensure the alternator is large enough to meet the total demands of the truck, including the Register. The Register requires a minimum of 5 Amps for proper operation. Run the truck at low idle, with all accessories on (including hose reel). Check the voltage with a multimeter to confirm that the voltage doesn't drop below 11 Volts.
• Inspect the electrical equipment on the vehicle to ensure proper installation and operation.
• Determine whether the vehicle is grounded positively or negatively. Consult Liquid Controls if the vehicle has a positive ground.
• Ensure that any radio antennas are installed according to manufacturer specifications to prevent RF interference.

Connect the Power

All Register shipments typically include a 50-foot gray power cable (100-foot and 300-foot cables are also available) and a 5 Amp fuse.

This is the wiring diagram for the power supply:

Cable routing

Routing Data and Power Cables describes the best practices for routing the gray power cable to the truck cab accessory panel.

50-foot Gray Power Cable

The gray power cable (PN 84512050) is prewired to the Register board at the factory (meter mount version). It includes two 16AWG wires and a ground drain wire. Splice the 5 Amp fuse into the red 16AWG wire as close to the power source as possible.

Panel mount versions will include a loose power cable and must be installed according to the wiring diagram.

Epson Printer Power

Power must be supplied to the Epson printer. For supplying power to the printer, a 15-foot cable with a 12/24VDC converter (825001) is also available. The red wire of this cable must be spliced into the red wire in the gray power cable on the Register side of the 5 Amp fuse.

Follow these steps to connect power to the Register and the Epson printer:

1. Route the gray power cable to the accessory panel. See Routing Data and Power Cables.
2. Splice the red wire from the printer power cable into the red wire of the gray power cable.
3. Splice the 5 Amp fuse to the red wire, close to the direct power terminal connection in the accessory panel, and on the power side of the splice made with the printer power cable.
4. Connect the red wire to the direct power supply terminal in the accessory panel.
5. Connect the black wire of the gray power cable to a reliable DC ground.
6. Connect the black wire of the printer power to a reliable DC ground.
7. Tape the green drain wire of the gray power cable back against the power cable.

Power Check

After the Register has been installed, check to ensure that it powers up correctly. The Register display and the printer power light should come on when the truck ignition is turned either to the ON position or the ACC position. Ensure that the printer power switch is on. If the Register or the printer does not power up, check the wiring and the connections on the Register board against the instructions in this manual.

Finalize the Installation

IMPORTANT: Before Sealing the Register

After correctly powering up the Register, continue on to the Register Setup and Operation manual to setup the Register for operation. We recommend that you setup and test the Register before closing and sealing the unit.

Close and Seal the Unit

After setting up and testing the unit, complete the installation by closing and sealing the housing. The Register must be environmentally sealed to protect the electronics against the elements. The Register must also be sealed by a Weights & Measures representative to guarantee that the register is operating at the proper regulatory standards.

1. Secure the cables behind the Register and the cables in the cab with cable ties.
2. If conduit was used during the installation, fill the conduit end inside the Register with silicon RTV (provided with shipment, PN 82575). Read and follow the directions of the Environmental Sealing Guidelines, below.
3. Tighten the four socket head cap screws on the four corners of the cover housing using a 3/16 hex key or bit. Ensure that the gap between the cover and the housing is completely closed. Ensure that the calibration screw is tightened to approximately 7-lb·in and properly sealed. Read and follow the directions of the Environmental Sealing Guidelines, below.
4. Seal the cover, base, and calibration screw with a wire/lead seal. See the Weights & Measures Seals section below.

Environmental Sealing Guidelines

The Register includes sensitive electronic components, including a microprocessor that can be damaged by the presence of moisture. Therefore, it is essential that all conduit ports, the cover, and the shaft seals be adequately sealed by the installer to ensure watertight integrity. The conformal coating on the board mitigates the problem of corrosion due to moisture, but this measure only protects the board from small amounts of moisture trapped inside when the lid is closed in humid conditions. It is not adequate for protecting the unit over time if a continuous leak is present in the enclosure.

Sealing the Register is the Responsibility of the Installer

There is no product warranty coverage for any water or moisture damage to the Register that results from improper sealing.

1. Conduit Entrances

The Register housing has 11 conduit entrances, all are ½" NPT female threads. Use only ½" NPT male threaded fittings on the conduit entrances. Thread sealant must be used with NPT threads. Pressed-in Caplugs or straight (rather than tapered) threads are inadequate for sealing these entrances. Acceptable fittings include metal or plastic conduit, pipe plugs, or cable glands.

Apply PTFE-based "pipe dope" to threads, or wind a minimum of two revolutions of PTFE tape prior to installation. Engage the threads with a minimum of four full turns. When using cable glands, ensure that the gland is sized properly for the outside diameter of the cable and the elastometric seal around the cable sheath is compressed onto the cable. Use only one cable per cable gland, unless the gland accommodates for multiple cables. When using conduit or Liquid-Tite, ensure that the opposite end is connected to an environmentally sealed device. If the conduit is not sealed at the other device, fill the interior of the conduit at the Register with a silicone rubber sealant—such as RTV—to prevent moisture from running down the conduit into the enclosure.

2. Cover Seals

To seal the Register cover properly, ensure that the O-ring surrounding the cover is fit snug inside the groove, and securely tighten the cover screws.

3. Shaft Seals

Units with internal pulsers have an O-ring around under the pulser inside the enclosure, and also a pulse encoder drive shaft that extends through the bottom of the Register housing. If a drive shaft adapter was attached at installation, ensure the O-ring around the shaft is securely seated in the counter bore of the casting, covered with the flat washer provided, and held in place with the cotter pin provided.

Any water or moisture damage to the Register as result of improper sealing will not be covered under the product warranty. Sealing the Register is the responsibility of the installer.

Weights & Measures Seals

To detect possible intrusions into Weights & Measures approved calibrations on a Register, retainer holes have been drilled into the side of the enclosure adjacent to the Weights & Measures Screw. Properly tighten the Weights and Measures screw to approximated 7 lb-in of torque or the proper visual tightening.

To seal according to Weights & Measures standards, a wire is threaded through the retainer holes and closed with a lead seal.

Interface Board Identification

Rev E Board

Description of Rev E board layout and components.

Rev J Board (identified by J in the white box identified by the arrow)

For Rev J boards or later: replace only with 32 V, 7.5A fuse Part No. 029707.5 manufactured by Littelfuse or by fuse Type ATM-7-1/2 manufactured by Bussmann.