FCI MT86 - Figure 12 - Control Board Layout

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TROUBLESHOOTING MT86/MT86HT Flow Meter

24 Fluid Components International LLC

Figure 12 – Control Board Layout

Main Page

Table of Contents3
General5
Description5
Figure 1 -Cut-Away View of One Sensing Point5
Specifications6
Installation7
Receiving/Inspection7
Packing/Shipping/Returns7
Factory Calibration Note7
Pre-Installation Procedure7
Install Flow Element8
Figure 2 -Flow Element Showing Flat Area, Flange Mount Shown8
Install Flow Transmitter9
Power Connection Information9
Table 1 - Interconnecting Cable Minimum Conductor Size (Maximum AWG Number)10
Figure 3 - MT86 or MT86HT Wiring Diagram11
Figure 4 - GF90 Flow Element with Optional Isolator Module11
Installation Quick-Check List12
Figure 5 -Isolator Output Module12
Operation13
Introduction13
Enable Optional Totalizer Back-Up Battery13
Figure 6 -Battery Jumper and Reset Locations13
Apply Power14
Operator Interaction14
Non-Zero Based Calibration14
Zero Based Calibration14
Delta "R" Table15
Generating New Delta "R" Tables15
Figure 7 - Zero Based Calibration15
New Calibration Procedure (in Field)16
Table 2 - Jumper Configuration for Output Adjustment17
Figure 8 -Zero and Span Adjustment18
Figure 9 - A/D Data Sheet19
Maintenance21
Introduction21
Troubleshooting23
Quick-Check Troubleshooting23
Troubleshooting Equipment23
Non-Maintenance Observations23
Table 3 - Quick Check Troubleshooting23
Troubleshooting Process24
Figure 10 - Terminal Plug25
Table 4 - Terminal Plug Resistances25
Troubleshooting Process - Voltage Measurements26
Table 5 - Power Supply Voltages, Power Supply Board26
Table 6 - Power Supply Voltages, Control Board26
Figure 11 - Electrical Assembly Layout27
Figure 12 - Control Board Layout28
Troubleshooting Process - Flow Element Current29
Field Calibration Techniques29
Table 7 - Input Board Terminal Voltage Check29
Table 8 - Current Measurements29
Calibration Verification Procedure (Using Decade Boxes)30
Calibration Verification Procedure (Using an FC81 Field Calibrator)31
Figure 13 - Decade Box Wiring Diagram31
Switch Point Calibration Procedure32
Switch Point Verification Procedure33
Analog Output Test Procedure33
Check Procedure for Totalizer and Rate Display33
Check Procedure for Flow Meter Displays with Zero and Non-Zero Based Calibration34
Table 9 - Totalizer Decimal Point Position34
Table 10 - Components for 100 and 1000 Ohm Flow Meters35
Figure 14 - Input Board36
Table 11 - Recommended Spare Parts36
Table 12 - Recommended Special Test Equipment36
Defective Parts37
Customer Service37
Appendix Adrawings39
Appendix Bglossary43
Appendix Ccustomer Service45
Appendix Dce Conformance51
Approved Ce Marking Configurations51
Conditionally Approved Ce Marking Configurations51
Installation Conformity Criteria51
Location of Ce Mark Documentation52

FCI MT86 - Figure 12 - Control Board Layout

Table of Contents

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