TechnipFMC 4528, Руководство по установке и эксплуатации

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Issue/Rev. 0.0 (5/19) ║ MNIN003 • Page 15
Installation / Operation Manual
Detector Calibration – 4528-X A with 4-20mA Module Mounted "Piggy Back" on
Detector Card
1. A. Calibration 4528-X A With 4-20 mA Module Mounted “Piggy Back” on Detector Card
1. Remove Detector aluminum face plate by removing the three 6-32 mounting screws and the bottom screw
on P.C. Card.
2. Mount the P.C. Card in the condulet by using the short screws removed from the Detector assembly. Be sure
the upper left screw at 10 oʼclock is tight as this screw “grounds” the P.C. Card to the condulet. Retain all
screws for future use.
3. Connect 24 V.D.C. to the left terminal block of the detector. Observe polarity. Press clip (on probe wire) onto
the stud coming into condulet from probe.
4. Turn on power/system to cause oil to flow through the probe. Allow flow to stabilize. For calibration
purposes the oil should preferably have less than 1% water in it.
5. Set Probe/Ref. switch at top of chassis to probe position.
6. Set a DC volt meter to 0-10 volt scale. Insert leads into test jacks on detector face.
7. Turn the Fine Zero (marked ZERO F) clockwise (CW) 25 turns until the pot is fully CW. Full clockwise
is indicated by a “clicking feel and sound when the pot is turned.
8. Turn the fine zero back counter clockwise (CCW) approximately 10 turns.
9. Turn the coarse zero pot (marked ZERO C) 25 turns full counter clockwise. Listen for clicks.
10. Turn the coarse zero CW until the volt meter reads 0.00 to 0.05. Do not turn pot past point where
numbers stop getting smaller.
11. Next, turn the fine zero to get as small a reading possible on volt meter.
12. Move Probe/Ref. switch to Ref. position.
13. Adjust output span control to make volt meter show 5.00 volts.
14. Move Probe/Ref. switch to Probe position.
15. Remove volt meter leads from test sockets. Turn volt meter to milliampere setting and connect leads
to “signal” terminals.
16. Adjust the single, small blue pot (R1) on piggy-back module to get reading of 4 mA on meter.
17. Reinstall Detector face plate using the long 6-32 screws at the 10 oʼclock and 2 oʼclock positions and
the short screws at the middle and bottom.
18. Remove volt meter leads from signal terminals. Turn volt meter back to voltage setting and insert
leads into red and black sockets.
19. Run a “shake-out” of oil going through probe to determine amount of water in it.
20. On a 5% Detector turn COARSE/FINE tuning adjustments as required to make voltmeter read the
water cut.
21. On a 10% Detector turn COARSE/FINE tuning adjustments as required to make voltmeter read 1/2 the
water cut.
22. On a 20% Detector turn COARSE/FINE tuning adjustments as required to make voltmeter read 1/4 the
water cut.
23. Remove volt meter.
24. Connect field wiring as required to the signal terminals for 4-20 mA output.