Industrial Sensor Manufacturer | APG, Inc.
Installation Guide for APG models including: RPM-96-A-F-AIS-011-0-2-00, RPM Resistive Continuous Float Level Transmitter, RPM, Resistive Continuous Float Level Transmitter, Continuous Float Level Transmitter, Float Level Transmitter, Level Transmitter, Transmitter
Explosion Proof Resistive Level Transmitter with 1" Stem - APG Sensors
Resources - Install Guides | APG Sensors
File Info : application/pdf, 3 Pages, 501.41KB
DocumentDocumentThank You Thanks for purchasing an RPM resistive continuous float level transmitter from us! We appreciate your business and your trust. Please take a moment to familiarize yourself with the product and this manual before installation. If you have any questions, don't hesitate to call us at 888-525-7300. To see full product manuals, go to https://www.apgsensors.com/resources-user-manuals/ RPM RESISTIVE LEVEL TRANSMITTER Installation Guide For RPM Series Table of Contents 1. Description 2. How To Read Your Label 3. Warranty 4. Dimensions 5. Mounting and Installation Instructions 6. Wiring Terminals for Voltage Output 7. Wiring Terminals for 4-20mA Output 8. Offset and Span Calibration 9. Removal Instructions 10. General Care 11. Repair Information 12. Specific Conditions of Use 13. Hazardous Location Wiring Automation Products Group, Inc. Part # 200854 1025 W 1700 N Logan, UT 84321 Doc # 9006508 Rev B www.apgsensors.com | phone: 888-525-7300 | email: sales@apgsensors.com 1 Description The RPM utilizes reed switches in the instrument's stem and a permanent magnet in the float. As the float rises or falls with the level of the liquid, the magnet inside the float acts on the reed switches inside the stem and provides a resistive-chain voltage output. The RPM is also available with optional electronics that convert the resistance output into a 4-20mA signal. 2 How To Read Your Label Each label comes with a full model number, a part number, and a serial number. The model number for the RPM will look something like this: SAMPLE: RPM-96-A-F-AIS-011-0-2-00 The model number correlates with all the configurable options and tells you exactly what you have. Compare the model number to the options on the datasheet to identify your exact configuration. You can also call us with the model, part, or the serial number, and we can help you. You'll also find all hazardous certification information on the label. 3 Warranty This product is covered by APG's warranty to be free from defects in material and workmanship under normal use and service of the product for 24 months. For a full explanation of our Warranty, please visit https://www.apgsensors.com/resources/warrantycertifications/warranty-returns/. Contact Technical Support to receive a Return Material Authorization before shipping your product back. 5 Mounting and Installation Instructions The RPM should be installed in an area -- indoors or outdoors -- which meets the following conditions: · Ambient temperature between -40°F to 185°F (-40°C to 85°C) (For explosion proof models: ambient temperature between -40°F to -104°F [-40°C to -40°C]) · Relative humidity up to 100% · Altitude up to 2000 meters (6560 feet) · IEC-664-1 Conductive Pollution Degree 1 or 2 · IEC 61010-1 Measurement Category II · No chemical corrosive to stainless steel (such as NH3, SO2, Cl2, etc.) · Ample space for maintenance and inspection Additional care must be taken to ensure: · The sensor is located away from strong magnetic fields, such as those produced by motors, transformers, solenoid valves, etc. · The medium is free from metallic substances and other foreign matter. · The sensor is not exposed to excessive vibration. · Do not locate your RPM sensor near inlets/outlets. Mounting Instructions: · Clamp Mounting: Tighten a U-bolt stainless steel mounting bracket around the RPM's stem, just below the union. · Flange Mounting: Provide the compatible mating flange on the tank and install using a suitable gasket. · Plug Mounting: Provide the compatible female boss on the tank and install the probe with thread tape. Installation Notes: · If there is surface wave action, then use a time-delay relay or stilling tube. If a stilling tube is used, drill vent holes in the tube and use a spacer to assure the float has free travel inside the tube (See Figure 5.1). 4 Dimensions RPM Dimensions Mounting Bracket Top of Tank Inflow Stilling Tube Mounting Bracket Top of Tank Inflow Bottom Mounting Bracket Bottom Mounting Bracket Figure 5.1 DANGER: Do not remove the housing cover until the atmosphere is determined safe and the power supply is turned off. 6 Wiring Terminals for Voltage Operation The wiring of your RPM is as follows: · Red and black wires connect to each end of a resistive chain. · The white wire is the voltage output that is connected to different points on the resistive chain by reed switches. · Red Wire: +5 to +24 VDC · Black Wire: Ground · White Wire: Voltage Out IMPORTANT: Your RPM MUST be installed according to drawing 9001415 (Explosion Proof Wiring Drawing) or 9001414 (Intrinsically Safe Wiring Drawing) to meet listed approvals. Faulty installation will invalidate all safety approvals and ratings. 7 Wiring Terminals for 4-20 mA Output The wiring of your RPM is as follows: · 4-20 mA Out: terminal out · +24 VDC: 24V 4 to 20ma Out +24vdc Figure 8.1 OUT 24V SPAN WH BLK RED OFFSET Offset (4 mA) Adjustment Span (20 mA) Adjustment 10 General Care Your RPM resistive continuous float level transmitter is very low maintenance and will need little care as long as it is installed correctly. However, in general, you should: · Periodically inspect the stem and floats for any trapped debris, sediment, or other foreign material. · Avoid applications for which the RPM was not designed, such as extreme temperatures, contact with incompatible corrosive chemicals, or other damaging environments. · If your RPM has an NPT mount, inspect the threads whenever you remove it from duty or change its location. · Never leave the housing cover off. If the cover is damaged or lost, order a replacement immediately. 11 Repair Information Should your RPM require service, please contact us via email, phone, or online chat on our website. We will issue you an RMA number with instructions. · Phone: 888-525-7300 · Email: sales@apgsensors.com · Online chat at www.apgsensors.com 8 Offset and Span Calibration (4-20 mA output probes only) This procedure can be performed in a non-hazardous area, either prior to installation, or by temporarily uninstalling your 4-20 mA RPM probe: · Set DC power supply to 24 VDC, and connect to the RPM probe, with ammeter in loop. · Move float to the desired position for 4 mA output. · Using a jeweler's screwdriver or a suitable instrument, adjust the "Offset" potentiometer until you have a 4 mA output. · Move float to the desired position for 20 mA output. · Using a jeweler's screwdriver or a suitable instrument, adjust the "Span" potentiometer until you have a 20 mA output. · Repeat as necessary to fine tune calibration. (See Figure 8.1) · Replace the housing cover when finished. NOTE: This procedure can be performed in a non-hazardous area, either prior to installation, or by temporarily uninstalling your 4-20 mA RPM probe. NOTE: You may also return the RPM probe to the factory for repair and/or adjustment. WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY; AVERTISSEMENT -- LA SUBSTITUTION DE COMPOSANTS PEUT COMPROMETTRE LA SECURITE INTRINSEQUE. DANGER: OPEN CIRCUIT BEFORE REMOVING COVER or KEEP COVER TIGHT WHILE CIRCUITS ARE ALIVE; AVERTISSEMENT -- COUPER LE COURANT AVANT D'ENLEVER LE COUVERCLE, ou GARDER LE COUVERCLE FERME TANT QUE LES CIRCUITS SONT SOUS TENSION. DANGER: EXPLOSION HAZARD-DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS; AVERTISSEMENT -- RISQUE D'EXPLOSION. NE PAS DEBRANCHER TANT QUE LE CIRCUIT EST SOUS TENSION, A MOINS QU'IL NE S'AGISSE D'UN EMPLACEMENT NON DANGEREUX. IMPORTANT: SEAL SHALL BE INSTALLED WITHIN 50 mm OF THE ENCLOSURE; IMPORTANT -- UNSCELLEMENT DOIT ETRE INSTALLE A MOINS DE 50 mm DU BOITIER. 9 Removal Instructions Removing your RPM from service must be done with care. It's easy to create an unsafe situation, or damage your sensor, if you are not careful to follow these guidelines: · Ensure all circuits are de-energized, and any hazardous atmosphere has dispersed. · Disconnect wires, either at terminals in the RPM head or at your system. · Remove the RPM with an appropriately sized wrench (per your mounting type). · Clean the RPM's stem and float of any debris (see General Care) and inspect for damage. · Store your RPM in a dry place, at a temperature between -40° and 85°C (-40° and 185°F). 12 Specific Conditions of Use 1. Parts of the enclosure are manufactured from aluminium. In rare cases, ignition sources due to impact and friction sparks could occur. This shall be considered during installation, particularly if the equipment is installed in a zone 0 location. 2. Under certain extreme circumstances, the non-metallic parts incorporated in the enclosure of this equipment may generate an ignition-capable level of electrostatic charge. Therefore the equipment shall not be installed in a location where the external conditions are conducive to the build-up of electrostatic charge on such surfaces. Because the non-conductive surface of the float may be charged by nonconductive media, it has to be assured that the media is electrostatically conductive. This is particularly important if the equipment is installed in a zone 0 location. In addition, the equipment shall only be cleaned with a damp cloth. 3. The sensor tube shall be reliably connected to the potential equalizing system to ensure that it is not an isolated part. 13 Hazardous Location Wiring Explosion Proof Wiring Drawing Intrinsically Safe Wiring Drawing