Copyright 2010 Baker Hughes Company.
12 | PACE Calibration Manual–English
14. Select the next pressure range for a calibration check.
15. After completing all calibration checks, adjust the pressure calibration standard to
atmospheric pressure.
16. Disconnect the pressure calibration standard from the output.
17. If no further calibration is necessary, de-energize the PACE.
7. Calibration Adjustment A1 - Control Modules
For PACE calibration menus, refer to Appendix A.
To adjust the calibration of PACE:
1. Connect the PACE to the pressure calibration standard. See Section 5.
Note: Calibration adjustments can be carried out in any order. Three calibration points are
necessary for gauge sensors. Two calibration points are necessary for absolute sensors.
2. Select the measured pressure then Global Setup > Calibration and enter the Calibration
PIN (4321).
3. Select Sensor Correction.
4. Select the pressure range to be corrected.
5. Select the pressure sensor to be corrected.
6. Select Calibration Adjustment.
7. Adjust the applied calibration pressure to the first pressure value and wait until this pressure,
shown on PACE, is stable to less than 5 ppm (0.0005%) for CM2 and below (aim for 1 ppm
(0.0001%) on CM3). The standard deviation of the measured pressure is shown on the
screen (σ) in the pressure units to aid with measuring the deviation in pressure.
Note: The display also shows throughout this procedure the message ‘Calibrating’ and the
selected pressure range.
8. Use the on-screen keypad to enter the applied pressure, then select the entered value to
save it.
9. The screen will now ask ‘keep calibration point?’ select the shown pressure to keep the
calibration used or select the undo icon to enter again the applied pressure.
10. Do steps (7) to (8) again for the next value.
11. Select Repeat to re-apply the same pressure and Quit Calibration to exit the calibration of
this pressure range.
12. Do a calibration check to make sure this procedure worked. “Calibration Check A - Control
Modules” on page 11.
13. After completing the calibration procedures, adjust the pressure calibration standard to
atmospheric pressure. Slowly open the On/Off valve to release any trapped pressure in the
SUPPLY+ port. Disconnect the pressure calibration standard from the PACE.
14. If no further calibration is necessary, de-energize the PACE.
INFORMATION This adjustment is for Control Modules CM0, 1 and 2 up to
and including 3.5 bar Absolute.
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