McCROMETER 282L Single Point Insertion Electromagnetic Flow Meter

Specifications

• Model: 282L Single Point Insertion Electromagnetic Flow Meter 1and 2 Sensors
• Installation, Operation, and Maintenance Manual: 24511-13 Rev. 2.3 March 20, 2024

Product Information

The Model 282L Single Point Insertion Electromagnetic Flow Meter is designed for accurate flow measurement in various applications. It comes with 1 or 2 sensors for precise data collection.

Installation
Follow the detailed installation instructions provided in the manual to ensure proper setup of the flow meter.

Operation
Once installed, the flow meter can be operated by following the operational guidelines outlined in the manual. Ensure that all safety precautions are observed during operation.

Maintenance
Regular maintenance is essential to keep the flow meter functioning optimally. Refer to the maintenance section in the manual for detailed instructions on upkeep.

Sensor Removal
If sensor removal is required for any reason, follow the step-by-step guide provided in the manual to safely remove and reattach the sensors.

Specifications

• Weight: [Insert weight]
• Dimensions: [Insert dimensions]
• Operating Temperature: [Insert temperature range]
• Power Supply: [Insert power supply details]

FAQ

• Q: How do I calibrate the flow meter?
  A: Calibration instructions can be found in the calibration section of the manual. Follow the steps carefully to calibrate the flow meter accurately.
• Q: Can additional sensors be added to the flow meter?
  A: The Model 282L supports up to 2 sensors. Adding more sensors may require consulting with technical support.

Model 282L Single Point Insertion Electromagnetic Flow Meter
1” and 2” Sensors

Installation, Operation and Maintenance Manual
24511-13 Rev. 2.3 March 20, 2024

Safety Symbols And Warnings

SAFETY SYMBOLS AND WARNINGS

Safety Symbols
Throughout this manual are safety warning and caution information boxes. Each warning and caution box will be identified by a large symbol indicating the type of information contained in the box. The symbols are explained below:

This symbol indicates important safety information. Failure to follow the instructions can result in serious injury or death.
This symbol indicates important information. Failure to follow the instructions can result in permanent damage to the meter or installation site.

Safety Warnings
When installing, operating, and maintaining McCrometer equipment where hazards may be present, you must protect yourself by wearing Personal Protective Equipment (PPE) and be trained to enter confined spaces. Examples of confined spaces are manholes, pumping stations, pipelines, pits, septic tanks, sewage digesters, vaults, degreasers, storage tanks, boilers, and furnaces.

You must follow all state and local laws, as well as Occupational Safety And Health Administration (OSHA) regulations concerning Personal Protective Equipment, confined-space entry, and exposure to bloodborne pathogens. Specific requirements can be found in the OSHA section of the Code of Federal Regulations: 29 CFR, 1910.132 – 1910.140, Personal Protective Equipment; CFR Title 29, Part 1910.146, Permit-Required Confined-Spaces; and 29 CFR, 1910.1030, Bloodborne Pathogens.

WARNING!
Incorrect installation or removal of SPI Mag meters can result in serious injury or death. Read the instructions in this manual on the proper procedures carefully.

WARNING!
Never enter a confined space without testing the air at the top, middle, and bottom of the space. The air may be toxic, oxygen deficient, or explosive. Do not trust your senses to determine if the air is safe. You cannot see or smell many toxic gases.
WARNING!
Never enter a confined space without the proper safety equipment. You may need a respirator, gas detector, tripod, lifeline, and other safety equipment.
WARNING!
Never enter a confined space without standby/rescue personnel within earshot. Standby/rescue personnel must know what action to take in case of an emergency.
WARNING!
Pressurized pipes should only be hot-tapped, cut, or drilled by qualified personnel. If possible, depressurize and drain the pipe before attempting any installation.
WARNING!
Carefully read all safety warning tags attached to the meter.

SPI Mag Description of Components

 SPI MAG DESCRIPTION OF COMPONENTS

Overview
The SPI Mag Model 282L flowmeter combines an innovative sensor with a comprehensive electronics package to provide accurate flow measurement for full-pipe flow monitoring applications.

The insertable sensor (available for one-inch and two inch taps) uses electromagnetic technology to measure water velocity. The streamlined, debris-shedding sensor shape allows the SPI Mag to be used under many flow conditions.

SPI Mag has many features to suit a wide variety of applications, and is easily set up using the keypad and readouts. Refer to the converter manual shipped with your meter system.

NOTE
The converter and sensor are supplied as a matched system. (Figure 1 and Figure 2) Verify the system serial numbers on both the converter and sensor match. This will ensure a properly calibrated system. The System Serial Numbers begin with MM20##### and are located on the side of the converter and on a tag near the end of the sensor cable.

Flow Calculation
The velocity measurements provided by the full-pipe sensor are used to calculate flow. Flow (also known as Q, as the flow rate, or as throughput) is the amount of fluid moving through a pipe in a period of time. For example, if 100 gallons of water move past the sensor in one minute, the flow is 100 gallons per minute (GPM).
To calculate the flow, two things are needed: The cross-sectional area of the pipe and the average velocity.

Cross-sectional area is found using the inside diameter of the pipe.

NOTE: It is required that the exact inside diameter of the pipe is input into the flow computer for the SPI Mag to provide accurate flow data.

• Average velocity is found using the sensed velocity (measured by the sensor).  A site calibration is performed to determine the velocity profile.  This allows the flowmeter to calculate the average velocity from the sensed velocity.
• Flow is calculated by using the Continuity Equation:
• Flow = Average Velocity x Area

• One Inch Full Pipe Sensor Installation and Profiling Guide, Lit.# 24510-58.
• Two Inch Full Pipe Sensor Installation and Profiling Guide, Lit.# 24510-59.

Parts Diagrams

PARTS DIAGRAMS

Sensor Probe Installation

SENSOR PROBE INSTALLATION
Please read the following information before installing the SPI Mag Sensor

 Site Selection
Install the sensor at an adequate distance from elbows, T-junctions, Y-junctions, active valves. Whenever possible, install the sensor upstream from a bend or junction.

 Sensor Clearance
The sensor will protrude from the pipe when installed demanding sufficient clearance (distance H, in Figure 5 below) from any obstruction for the purposes of installation and removal.

Distance H above is estimated by adding three measurements:

1. The height from the outer pipe wall to the top of the installation valve
2. The length of the meter (see the table below)
3. Additional 9” of working space

Pipe Valve Installation

WARNING!
Pressurized pipes should only be hot tapped, cut, or drilled by qualified personnel using high quality saddles, valves ad stainless steel nipples. If possible, depressurize the pipe before attempting any installation.

Install a 2” (50mm) full port valve or corporation stop with a 2” (50mm) NPT female pipe thread output for the 2” sensor, or a 1” (25mm) full port valve or corporation stop with a 1” (25mm) NPT female pipe thread output for the 1” sensor. Follow any and all installation instructions provided for the valve that you have chosen. The valve or corporation stop can be installed onto a welded coupling or pipe saddle. See Figure 6.

IMPORTANT: The MINIMUM port inside diameter for all installation valves is 1-7/8″ (48mm).

Sensor Assembly Installation
The sensor assembly uses a compression seal, which keeps the sensor watertight when the pipe is under pressure. (Figure 7) Care must be taken when installing the sensor, to avoid leaks.

1. Visually inspect all elements of the installation to ensure they are structurally sound and of high quality materials, including all welds, couplings and nipples. To prevent future corrosion, nipples should be high quality stainless steel.
2. Put a generous amount of the pipe sealant (not supplied with the sensor) on the compression seal threads. (Teflon tape may also be used.) NOTE: if pipe sealant gets on the sensor electrodes the velocity signal may be lost.
3. Place the compression seal threads over the pipe valve. Turn the entire sensor assembly clockwise to secure the assembly to the valve.
4. The seal is secure when a large amount of force is required to turn the assembly. Line up the arrow (on the top plate) with the direction of the flow.

Inserting The Sensor

WARNING!
The compression seal/sensor assembly may be under pressure. Serious injury may result if proper procedures are not followed. Do not attempt to install the sensor without the restraining rods fully assembled.

Ensure the compression seal is only hand tightened.

1. Barely crack open the valve and tighten the compression seal as required to minimize leaks. A towel draped around the compression seal can reduce spray if necessary.
2. Open the valve completely. Failure to open the valve completely will cause the valve to scrape the sensor during insertions and may result in permanent damage to the sensor.
3. Insert the sensor into the pipe by simultaneously rotating clockwise the two captive nuts on the top plate for the 2” sensor, and the single captive nut on the 1” sensor. (Figure 8) For the two captive nuts on the 2” sensor use the two ratchet wrenches provided. It is recommended that the sensor insertion tool (p/n 75031) be used to rotate the captive nuts on the 2” sensor to ensure the top plate compresses evenly. See section 4.8 and Figure 12.

IMPORTANT
On the 2” installation hardware, if the captive  nuts are not tightened simultaneously, the top plate will become crooked and cause the sensor to be inserted at an angle and may cause permanent damage to the sensor. Clean Water Sensor Position
If the flow is clean water the sensor can be placed at 1/8 of the inside diameter. To position the sensor at 1/8 of the ID, follow the instructions below:

• Measure the tube from the top of the cap to the end of the sensor to find the tube length (TL).
• Calculate (1/8 ID): 1/8 ID = 0.125 x Pipe ID
• Add wall thickness to 1/8 ID.
• Calculate distance A: A = TL – (1/8 D + WT)
• Set the top edge of the insertion tube cap distance A from the pipe.

If the flow is clean water, the sensor can be left at the 1/8 D position. (Figure 10) Do not leave the sensor in this position for raw waste water because debris could collect on the sensor and affect the velocity readings. In waste water applications, position the sensor at location 0.00. See section 4.7.
 Raw Water Sensor Position
The operation position for raw waste water and sludge is at sensor location 0.00 to prevent debris from collecting on the sensor and affecting velocity readings. To position the sensor at this location follow the instructions below:

• Calculate distance A by subtracting the pipe wall thickness (WT) and ¾” from length C. See Figure 11 for Length C (Tube Length).
• Position the top edge of the insertion tube cap distance A from the pipe.

Sensor Insertion Tool
McCrometer recommends using a sensor insertion tool (Figure 12) (P/N 75031) to help with inserting the sensor and to avoid any damage to the sensor. Place the profiling insertion tool over the captive nuts and lock it into place with spring locks located on the bottom of the tool. Using the provided wrench rotate the high gear shaft clockwise until the bottom of the sensor reaches the far wall of the pipe.

 SENSOR REMOVAL

WARNING!
The pipe may be under pressure. Serious injury or death may result if proper procedures are not followed. To remove the sensor follow the steps below:

1. Visually inspect the pipe and entire assembly for damage or corrosion paying close attention to any nipples and welded couplings. If there is any doubt as to the condition of any element of the pipe or sensor, depressurize the line before attempting a removal of the sensor.
2. Loosen the compression seal until the seal just begins to leak. This will relieve the pressure on the compression seal allowing the sensor to be removed. Draping a towel around the compression seal can reduce any spraying water. NOTE: The compression seal may prevent immediate leakage on sensors installed for a long period of time until the sensor begins to rise.
3. On the 1” sensor, rotate the captive nut on the top plate to raise the sensor.. On the 2” sensor rotate the captive nuts on the top plate simultaneously. The sensor insertion tool is recommended. See Section 4.8. This will cause the sensor to rise out of the pipe. If the line is under pressure do not remove the sensor from the compression seal completely. Only raise the sensor until it is clear of the valve, but still below the compression seal. Once the sensor has cleared the valve mechanism, the valve can then be closed. Do not attempt to force the valve closed while the sensor is still passing through the valve as permanent damage to the sensor can occur.
4. Once the valve is closed, the entire sensor can be removed from the valve.

MAINTENANCE

The SPI Mag is essentially a maintenance free meter with no user serviceable parts. However, the metered fluid may contain of solids or other contaminants coat the sensor electrodes. A periodic inspection may be recommended to ensure the sensor electrodes are clean. To clean the unit remove the sensor following all of the instructions and safety warning contained in Section 5.0. When the sensor is removed from the pipe, carefully wipe down the sensor with a soft cloth and a mildly abrasive detergent, such as a liquid kitchen detergent.

SPECIFICATIONS

FLOW METER SPECIFICATIONS

Note regarding cable length: McCrometer recommends minimizing cable length. Electromagnetic Flow meters may have an unfavorable signal strength-to-noise ratio in electrically noisy environments. Longer lengths of cable increase the likelihood of interference. In those cases where the meter’s signal must be transmitted a long distance, or where the environment may be particularly noisy, we suggest using the converter’s analog output(s). That allows locating the converter as close as possible to the metering location.

SPI MAG ORDERING INFORMATION

The standard SPI Mag includes:

• SPI Mag sensor
• ProComm converter
• 25-foot sensor cable
• Installation and Operation Manual

Options

• Extended sensor cable (up to 200’, for longer lengths, consult factory)
• Sensor insertion tool – Part No. 75031
• Additional Installation and Operation manuals – Part No. 24511-13
• RS485 Port

Returning a unit for repair
If the unit needs to be returned to the factory for repair, please do the following:

• Prior to calling for a return authorization number, determine the model number, serial number (located inside the front panel of converter), and reason for return.
• Contact McCrometer Customer Service Department and ask for a Return Authorization (RA) number.
• Telephone: 1-800-220-2279
• Email: customerservice@mccrometer.com
• Ship the meter in the original packaging, if possible. Do not ship manuals, power cords, or other parts with your unit unless required for repair.
• Please make sure the meter is clean and free from foreign debris prior to shipping.
• Write the RA number on the outside of the shipping box. All return shipments should be insured.
• Address all shipments to:
  • McCrometer, Inc. RA#
  • 3255 W. Stetson Ave Hemet, CA 92545

 CONVERSION TABLES

Table of Decimal Equivalents

Table of Conversions

WARRANTY STATEMENT

McCrometer warrants that this product will be free from defects in material and workmanship for a period 24 months from the date the equipment was first installed, but in no event longer than 30 months from the date the equipment was first shipped by McCrometer. Repairs shall be warranted for 12 months or, if the repair is performed under this warranty, for the remainder of the original warranty period, whichever is less.

Buyer shall report any claimed defect in writing to McCrometer immediately upon discovery and in any event, within the warranty period. McCrometer shall, at its sole option, repair the equipment or furnish replacement equipment or parts thereof, at the original delivery point.

McCrometer shall not be liable for costs of removal, reinstallation, or gaining access. If Buyer or others repair, replace, or adjust equipment or parts without McCrometer prior written approval, McCrometer is relieved of any further obligation to Buyer under this Article with respect to such equipment.

No equipment furnished by McCrometer shall be deemed to be defective by reason of normal wear and tear, failure to resist the erosive or corrosive action of any fluid or gas (unless otherwise specifi ed in Quotations/ Purchase Order Specifications), Buyer’s direct or indirect failure (or the failure of its agents or contractors) to properly store, install, operate, or maintain the equipment in accordance with good industry practices or specific recommendations of McCrometer, or Buyer’s failure to provide complete and accurate information to McCrometer concerning the operational application of the equipment.

THE FOREGOING LIMITED WARRANTIES WITH RESPECT TO EQUIPMENT AND PRODUCTS ARE EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER WARRANTIES OF QUALITY OR PERFORMANCE, EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, ANY AND ALL WARRANTIES OF MERCHANTABILITY OR FITNESS OF SAID EQUIPMENT AND PRODUCTS FOR ANY PARTICULAR PURPOSE.

MCCROMETER DISCLAIMS ANY WARRANTY, WHETHER EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF PRODUCTS AND EQUIPMENT SUPPLIED PURSUANT TO ANY PURCHASE ORDER FOR INSTALLATION IN ANY PARTICULAR SYSTEM OF SYSTEMS. MCCROMETER MAKES NO WARRANTY OF ANY KIND WITH RESPECT TO ANY SERVICES PERFORMED BY MCCROMETER OR ITS AGENTS PURSUANT TO ANY QUOTATION.

Purchaser’s sole remedy and manufacturer’s sole obligation for alleged product failure, whether under warranty claim or otherwise, shall be the aforestated obligation of the manufacturer to repair or replace products returned within twenty-four months after date of original shipment. The manufacturer shall not be liable for, and the purchaser assumes and agrees to indemnify and save harmless the manufacturer in respect to, any loss or damage that may arise through the use by the purchaser of any of the manufacturer’s products.

McCrometer does not authorize any person or entity (including, without limitation, McCrometer agents and employees) to make any representations (verbal or written) contrary to the terms of this limited warranty or its exclusions. Such terms of this limited warranty and its exclusions can only be effectively modifi ed in writing and only by the President of McCrometer.

OTHER McCROMETER PRODUCTS INCLUDE:

Copyright © 2024 McCrometer, Inc. All printed material should not be changed or altered without permission of McCrometer. Any published pricing, technical data, and instructions are subject to change without notice. Contact your McCrometer representative for current pricing, technical data, and instructions.
3255 WEST STETSON AVENUE • HEMET, CALIFORNIA 92545 USA

• TEL: 951-652-6811
• 800-220-2279
• FAX: 951-652-3078
• www.mccrometer.com

Documents / Resources

McCROMETER 282L Single Point Insertion Electromagnetic Flow Meter [pdf] Installation Guide 282L Single Point Insertion Electromagnetic Flow Meter, 282L, Single Point Insertion Electromagnetic Flow Meter, Insertion Electromagnetic Flow Meter, Electromagnetic Flow Meter, Flow Meter, Meter

References

• User Manual