FCI MT86 Installation, Operation & Maintenance Manual
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FCI MT86 Installation, Operation & Maintenance Manual

Multipoint flow meter
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Doc. No. 003162 Rev. G

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  • Page 1 Doc. No. 003162 Rev. G...
  • Page 2 (and does not include manufacture or processing uses). Any other use is strictly prohibited without the prior written consent of FCI. © Copyright 2013 by Fluid Components International LLC. All rights reserved. FCI is a registered trademark of Fluid Components International LLC. Information subject to change without notice.

  • Page 3: Table Of Contents

    MT86/MT86HT Flow Meter 003162 Rev. G Table of Contents GENERAL ......................................Description ......................................Specifications ....................................INSTALLATION ....................................Receiving/Inspection ..................................Packing/Shipping/Returns ................................. Factory Calibration Note ................................... Pre-Installation Procedure ................................. Install Flow Element ..................................Install Flow Transmitter ..................................Power Connection Information ................................
  • Page 4 Figure 1 –Cut-Away View of One Sensing Point ............................Figure 2 –Flow Element Showing Flat Area, Flange Mount Shown ......................Figure 3 – MT86 or MT86HT Wiring Diagram ............................Figure 4 – GF90 Flow Element With Optional Isolator Module .........................

  • Page 5: General

    Description The MT86 and MT86HT is an air and gas mass multipoint flow meter that incorporates one or more flow elements connected to a flow transmitter. Together they are designed to measure the mass flow in pipes, ducts or stacks. The flow meter accurately measures the irregular flow profiles.

  • Page 6: Specifications

    22 AWG, Kapton insulated foil shielded cable. Options • Operating pressure: Enclosures: Standard MT86 is 0-50 PSIG, or higher depending on application. Explosion-proof NEMA 7 electrical enclosure is available for both the flow element and flow transmitter that complies with •...

  • Page 7: Installation

    Verify the Delta R data sheet and the Instrument Information Sheet are present in the plastic page protector found in the back of the manual. If the above items are satisfactory then proceed with installation. If not, then stop and contact the FCI customer service representative for instructions.

  • Page 8: Install Flow Element

    INSTALLATION MT86/MT86HT Flow Meter Prepare or Verify Flow Element Location The flow element location has been previously determined before the time of order. Mounting the flow element in a position different than originally determined may cause reading errors. The shape of the flow element is cylindrical with a diameter of 2.00 inches (50.8 mm). The flow element length (U-length) is customer specified.

  • Page 9: Install Flow Transmitter

    The local enclosure may not be turned more than 180° using the threads on the enclosure to gain an acceptable orientation. In addition, FCI recommends sealing off the conduit with a potting Y or other sealing method to prevent moisture from entering the enclosures.

  • Page 10: Table 1 - Interconnecting Cable Minimum Conductor Size (Maximum Awg Number)

    INSTALLATION MT86/MT86HT Flow Meter Table 1 – Interconnecting Cable Minimum Conductor Size (Maximum AWG Number) Maximum Distance for AWG Connection 500 ft. 1000 ft. 10 ft. (3m) 50 ft. (15m) 100 ft. (31m) 250 ft. (76m) (305m) 152m) AC Power...

  • Page 11: Figure 3 - Mt86 Or Mt86Ht Wiring Diagram

    4. VOLTAGE OUTPUT BD: 0-5, 1-5, OR 0-10 VDC. mA/VOLTAGE OUTPUT BD. CUSTOMER SHOULD GROUND OUTPUT NEG ATIVE AT CIRCUIT BD. OU T C00126-2-1 Figure 3 – MT86 or MT86HT Wiring Diagram CONN NO. HEAD NO. ELECTRONIC ASSEMBLY A.C. GND A.C. NEUT A.C.

  • Page 12: Installation Quick-Check List

    FCI strongly recommends installing an AC line disconnect switch (and possibly a fuse) between the power source and the flow meter. The line switch is an easy way to remove power for calibration and maintenance procedures. Also the line switch is an added safety feature.

  • Page 13: Operation

    Figure 6 below for details. In applications where the operator is required to reset zero, FCI recommends that these terminals be brought out to a convenient reset switch. TOTALIZER AND DISPLAY BOARD (OPTIONAL) RIBBON CABLE...

  • Page 14: Apply Power

    There is little need for interaction between the operator and flow meter. The flow meter is fully automatic when it operates in the normal monitor mode. FCI advises the use of factory default settings that the flow meter was ordered with. Do not reset the flow meter's operating values by trial and error.

  • Page 15: Delta "R" Table

    Obtain the correct FC81 Field Calibrator for the MT86 or MT86HT Flowmeter: Model FC81-8 is used for the MT86 with 1000 ohm flow element sensing point RTDs. Model FC81-7 is used for the MT86HT with 100 ohm flow element sensing point RTDs.

  • Page 16: New Calibration Procedure (In Field)

    The true flow rate of the process flow and the indicating milliamp output of the flow meter must be known before going on with the following adjustment procedure. Record and have the information available for FCI to review. To justify a span adjustment only, ensure the flow rate to be above 60% of full scale. Do not perform a span adjustment if the data obtained is at a flow rate below 40%.

  • Page 17: Table 2 - Jumper Configuration For Output Adjustment

    As with the span adjustment, field data is also needed to perform adjustments. The information that is needed is the true flow rate and the indicating milliamp output of the flow meter. Record and have the information available for FCI to review. The procedure is basically the same as the span adjustment procedure.

  • Page 18: Figure 8 -Zero And Span Adjustment

    If a span and zero adjustment cannot be done, the other choice for adjustment is an EPROM replacement. The EPROM stores the data that represents the calibrated flow rate and the performance curve. FCI can provide a new EPROM with the new data and/or range. The customer does have to provide FCI with Analog-to-Digital (A/D) information and the flow rate so the EPROM can be made.

  • Page 19: Figure 9 - A/D Data Sheet

    MT86/MT86HT Flow Meter OPERATION Figure 9 – A/D Data Sheet Fluid Components International LLC...
  • Page 20 OPERATION MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 21: Maintenance

    MT86/MT86HT Flow Meter MAINTENANCE MAINTENANCE Warning: To avoid hazards to personnel, ensure that all environmental isolation seals are properly maintained. Caution: The flow transmitter contains electrostatic discharge (ESD) sensitive devices. Use standard ESD precautions when handling the flow transmitter. See INSTALLATION, page 3, for ESD details.
  • Page 22 MAINTENANCE MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 23: Troubleshooting

    2 each, digital multimeter (DMM) capable of measuring ohms, milliamps, and AC or DC voltage with a 4 1/2 digit resolution. 3 each, precision decade resistance boxes (however they are optional if fixed precision resistors are used). 1 each, 1K ohm resistor for model MT86 or 100 ohms for model MT86HT. Non-Maintenance Observations At this point, observe the system setup to verify operation.

  • Page 24: Troubleshooting Process

    To identify a bad flow element rotate the Head-Select switch, SW2, through its numbered positions. Pause at each position to monitor a red Light Emitting Diode (LED), CR1. CR1 is located on the MT86 Control Board. If a problem exists with a sensing point, the LED will...

  • Page 25: Figure 10 - Terminal Plug

    Table 4 are based on a temperature of 32° F (0° C). Resistances across the ACT and the REF RTDs for an MT86 are approximately 1000 ohms, resistances for an MT86HT are approximately 100 ohms. The resistances will continue to increase for higher temperatures at the sensing points.

  • Page 26: Troubleshooting Process - Voltage Measurements

    TROUBLESHOOTING MT86/MT86HT Flow Meter If the flow element is bad, replace it with a spare flow element. Return the bad flow element to FCI for repair and, or replacement. See Appendix C for the Customer Service return procedure. Troubleshooting Process - Voltage Measurements Verify the use of the correct power source.

  • Page 27: Figure 11 - Electrical Assembly Layout

    ASS Y 0011515-XX ASS Y 012576-XX ASS Y 011581-XX EPROM POLE INHI ASS Y 0011515-XX TP10 POLE MT86 CONTRO L BD. INLO TP13 0 -10 V OUTPUT ASS Y 0011515-XX ASS Y 011563-XX CAL ZERO SPAN C00129-1 Figure 11 – Electrical Assembly Layout...

  • Page 28: Figure 12 - Control Board Layout

    TROUBLESHOOTING MT86/MT86HT Flow Meter Figure 12 – Control Board Layout Fluid Components International LLC...

  • Page 29: Troubleshooting Process - Flow Element Current

    MT86/MT86HT Flow Meter TROUBLESHOOTING If a voltage is missing, unplug all the input and output boards. Measure the voltage again to see if the voltage has returned. If it has returned plug in the boards one at a time until the board is found that is loading the circuit. Remove and replace the board. If the voltage does not return, replace the control board.

  • Page 30: Calibration Verification Procedure (Using Decade Boxes)

    All MT86HT flow meters (high temperature flow elements) have 100 ohm RTD sensing points. Determine which MT86 model type is present and use the ohm value that corresponds to the model type. Verify each sensing point one at a time. Select the manual operation mode of the flow transmitter by closing switch SW1-3. When the flow meter is in the manual mode, the flow transmitter monitors only the sensing point that the head-select switch SW2 selects.

  • Page 31: Calibration Verification Procedure (Using An Fc81 Field Calibrator)

    Delta "R" resistance values and the output signal. The use of the field calibrator requires having the correct Delta "R" data sheets for each flow element. The field calibrator is ideal for the field verification of MT86 and MT86HT installations.

  • Page 32: Switch Point Calibration Procedure

    If an MT86HT has a Delta "R" value greater than 10 ohms, use the add ohm switch. If an MT86 has a Delta "R" value greater than 100 ohms, use the add ohm switch. The display's readout does not show the ohms added. The ohms added MUST be added to the displayed resistance for determination of the actual applied Delta "R".

  • Page 33: Switch Point Verification Procedure

    Setting the rate display automatically sets the totalizer. Remove the rate totalizer circuit board from it's mounting position in the cabinet door. Connect the ribbon cable from connector P6 on the MT86 control board to connector P1 on the rate totalizer. Turn the operating power ON.

  • Page 34: Check Procedure For Flow Meter Displays With Zero And Non-Zero Based Calibration

    Any unauthorized repairs that are done at the component level will void the warranty. Contact the authorized FCI field representative (see the list of regional territories and the respective agents) or the factory (see the telephone and FAX numbers in APPENDIX C, page 41, of this manual) to determine the best course of action.

  • Page 35: Table 10 - Components For 100 And 1000 Ohm Flow Meters

    6. Reconnect the flow element cables to the PWB. Remove the "HTR+" and "HTR-" wires from the connectors and continue with the next procedure. 7. Perform a sensing point balancing procedure. Contact FCI customer service for the appropriate procedure. Fluid Components International LLC...

  • Page 36: Figure 14 - Input Board

    Spares FCI typically recommends one or more complete sets of spare PWBs and flow element assemblies depending on how critical the monitoring process is, as well as the FC81 field calibrators for convenience. Contact the field representative or FCI for specific recommendations and part numbers.

  • Page 37: Defective Parts

    FCI, freight prepaid, for disposition. Customer Service In the event of problems or inquiries regarding the flow meter, please contact the Regional or Country Authorized FCI Field Agent. There is an extensive list of these representatives at the front of this manual.
  • Page 38 TROUBLESHOOTING MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 39: Appendix Adrawings

    MT86/MT86HT Flow Meter APPENDIX A – DRAWINGS APPENDIX A DRAWINGS 1 IN. NPT PORT PROVIDED FOR POWER INPUT 12.00 4X Ø.31 [Ø79] [305] SHOWN WITH OPTIONAL RATE DISPLAY AND TOTALIZER 2X 1 IN. NPT CONDUIT PORT 3RD PORT PROVIDED WITH 6 AND 8 POINT SYSTEMS 17.87...
  • Page 40 APPENDIX A – DRAWINGS MT86/MT86HT Flow Meter C01156-1-1 Fluid Components International LLC...
  • Page 41 MT86/MT86HT Flow Meter APPENDIX A – DRAWINGS 3.35 ±.25 [85] 1/2-13UNC-2B 1.00 2 INCH NPT Ø2.06 MAX HORIZON TAL FLOW APPLIC ATIONS U-LENGTH (CUSTOMER SPECIFIED) VERTICA L FLOW APPLIC ATIONS 3.75 ±.25 [95] 1/2-13UNC-2B 1.00 U-LENGTH (CUSTOMER SPECIFIED) 1/2X° X°...
  • Page 42 APPENDIX A – DRAWINGS MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 43: Appendix Bglossary

    MT86/MT86HT Flow Meter APPENDIX B – GLOSSARY APPENDIX B GLOSSARY Abbreviations Delta-R (ΔR) Resistance differential Delta-T (ΔT) Temperature differential Electrostatic discharge Fluid Components International Heater Ground Liquid crystal display Light Emitting Diode Resistance Temperature Detector SFPS Standard Feet Per Second...
  • Page 44 APPENDIX B – GLOSSARY MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 45: Appendix Ccustomer Service

    Attn: Customer Service Department By Phone Contact the area FCI regional representative. If a field representative is unable to be contacted or if a situation is unable to be resolved, contact the FCI Customer Service Department toll free at 1 (800) 854-1993.
  • Page 46 Contact an FCI field representative to request field service. A field service technician is dispatched to the site from either the FCI factory or one of the FCI representative offices. After the work is com- plete, the technician completes a preliminary field service report at the customer site and leaves a copy with the customer.
  • Page 47 MT86/MT86HT Flow Meter APPENDIX C – CUSTOMER SERVICE Fluid Components International LLC...
  • Page 48 APPENDIX C – CUSTOMER SERVICE MT86/MT86HT Flow Meter Fluid Components International LLC...
  • Page 49 MT86/MT86HT Flow Meter APPENDIX C – CUSTOMER SERVICE WARRANTIES Goods furnished by the Seller are to be within the limits and of the sizes published by the Seller and subject to the Seller’s standard tolerances for variations. All items made by the Seller are inspected before shipment, and should any of said items prove defective due...
  • Page 50 APPENDIX C – CUSTOMER SERVICE MT86/MT86HT Flow Meter This Page Intentionally Left Blank Fluid Components International LLC...

  • Page 51: Appendix Dce Conformance

    All options conform to CE marking requirements. X or Y options only conform to CE marking. All other configurations must be approved for CE marking conformity by FCI's engineering department. CONDITIONALLY APPROVED CE MARKING CONFIGURATIONS 24 VDC Factory Selectable Option The models included in this family may be factory selected for input power of 24 VDC.

  • Page 52: Location Of Ce Mark Documentation

    APPENDIX D – CE CONFORMANCE MT86/MT86HT Flow Meter LOCATION OF CE MARK DOCUMENTATION European Location The technical documentation file part A resides at Fluid Components Intl, European Service Center, Beatrix De Rijkweg 8, 5657 Eg Einhoven, Netherlands, Phone: 31-40-2-571-972 FAX: 31-40-2-517-809.
  • Page 53 MT86/MT86HT Flow Meter APPENDIX D – CE CONFORMANCE This Page Intentionally Left Blank Fluid Components International LLC...
  • Page 54 MT86/MT86HT Flow Meter Fluid Components International LLC 003162 Rev. G...

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