Fluid Components International FLT93 Nuclear - Manual (Page 44)

TROUBLESHOOTING FLT ® Series FlexSwitch TM
44 Fluid Components International LLC
5 Fuse Check Turn off the power to the FLT and remove the control circuit. With an ohmmeter,
measure the continuity of the fuse F1.
Fuse has no continuity: NOT OK Replace the fuse and restart the system.
Check for proper operation. Call the factory if the fuse fails again.
Fuse has continuity: OK Control circuit is defective. Replace it with a
control circuit that has the temp comp adjusted for the particular sensing element.
Follow the “Restoring temperature compensation settings” procedure in Appendix
C and restart the system.
6 Sensor Element Check for Integral
Installation Turn off the power and remove the control circuit. Follow the “Troubleshooting the
Flow Element” procedure in this chapter.
Sensor Failure: Call the Factory
Sensors are OK: See Step 8.
7 Sensor Element Check for Remote
Installation Turn off the power and remove the control circuit. Follow the “Troubleshooting the
Flow Element” procedure in this chapter.
Remote cable miswired or damaged: Repair and restart the system.
Sensor Failure: Call the Factory
Sensors are OK: See Step 8.
8 Sensor Balance and Temp Comp Settings
Check Turn off the power and remove the control circuit. Follow the procedure in
Appendix C to check the temp comp settings and balance adjustment.
Temp Comp Settings are Wrong: Perform the “Restore Temp Comp” Procedure.
Then perform the sensor Balancing procedure.
Temp Comp Settings are OK: Perform the Balancing procedure. Restart the
system for proper operation. See Step 9.
9 Alarm Switch Point Settings Make sure that the jumpers are set correctly. The related settings are the “Alarm
Duty”, “Alarm Quantity” and the “Energization”. Refer to the charts in chapter 3 or
the bottom of the control circuit.
Using the Mode Switch set to Cal, check and record the alarm settings. Compare
these setting to the signals generated by the process and make adjustment if
necessary. Refer to the Operation chapter for guidelines on setting a switch point
in your particular application.
Figure 5-1. Trouble Shooting Chart
Spares
FCI recommends at least one control circuit to be kept as a spare. Depending on the number of units the customer has installed and if the
switches are critical then an entire spare switch assembly should be kept on hand. The control circuit part number is 5298-A1A1A1B2. The
dash number can be found on the control circuit, the enclosure and on the ordering paper work.
Defective Parts
Before returning any equipment to FCI, please obtain an RA number for authorization, tracking, and repair/replacement instructions. If a
return is required, remove the defective instrument, replace with a spare, calibrate, then return defective instrument to FCI freight prepaid for
disposition.
Customer Service
1. In the event of problems or inquiries regarding the instrument, contact the Regional or Country Authorized FCI Field Agent. There is an
extensive list of these representatives at the front of this manual.
2. Before contacting the FCI representative, please be sure that all the applicable information is near so that a more effective, effi cient and
timely response may be provided.
3. Refer to Appendix C for specifi c Customer Service policy provisions.