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86 3A2098H
Adjust Amplifier Settings
12. Remove cover from amplifier (116). See Replace
Amplifier, page 85.
13. Ensure the EXCITATION SELECTOR jumper is in
the middle position (5 Vdc). See F
IG
. 59 on page 86.
14. Ensure the COARSE GAIN dipswitch 1 is set to ON.
All others should be set to OFF.
15. Adjust the FINE ZERO potentiometer until the outlet
pressure on the display reads 0.
16. Use a small piece of jumper wire or a paper clip to
connect the SHUNT CAL and ENABLE terminals.
17. Use the data from the certificate of calibration for
the pressure sensor (included with PCF documenta-
tion or the replacement pressure sensor) to calcu-
late the Shunt Calibration Pressure using the
following formula:
18. Adjust the FINE GAIN potentiometer until the Outlet
Pressure on Fluid Plate x, screen 5 (Pressure Sen-
sors) matches the calculated Shunt Calibration
Pressure.
19. Remove the jumper wire or paper clip from the
SHUNT CAL and ENABLE terminals.
20. Repeat steps 15 - 19 at least one additional time to
ensure proper calibration.
21. Replace the amplifier cover. See Replace Ampli-
fier, page 85.
22. Reconnect the outlet pressure sensor cable if it was
removed.
23. If desired, change pressure units to desired setting
on Advanced screen 2.
Shunt Calibration Pressure = (Shunt Cal Factor /
Calibration Factor) * 5000 psi
F
IG
. 59: Amplifier Settings
1
2
3
4
5
6
A
B
C
D
E
F
EXCITATION MODULE
TRANSDUCERPOWER
(+)SUPPLY
(+)SIGNAL
(-)SIGNAL
(+)EXCITATION
(-)EXCITATION
(-)OUTPUT
(+)OUTPUT
SHUNT CAL
SHUNT CAL
RESISTOR
ENABLE
EX SEL
10 VDC
5 VDC
3 VDC
ZERO
COARSE
FINE
FINE
SPAN
COARSE
12345678
ON
SUPPLY RETURN
Excitation Selector
Coarse Zero
Fine Zero
Fine Gain
Coarse Gain
Panel mounting holes.
Use #6 or #8 screws.
To Transducer
To Readout