Omega OME-A822PG manual Calibration, Description of Variable Resistors

4.Calibration

The OME-A-822PGL/PGH is factory calibrated for optimum performance. Recalibration is suggested for high vibration environments. The following items are required for calibrating the OME-A-822PGL/PGH.

zOne 6 digit multimeter

zOne stable voltage source (4.9988V)

zDiagnostic program : this program included with the OME-A822PGL/PGH.

4.1 Description of Variable Resistors

There are seven variable resistors(VRs) on the OME-A-822PGL/PGH used for calibration, they are described below.

VR Num.	Description
VR1	A/D offset adjustment
VR2	A/D gain adjustment
VR3	D/A channel 0 gain adjustment
VR4	D/A channel 1 gain adjustment
VR5	D/A reference voltage adjustment
VR6	A/D unipolar offset adjustment
VR7	A/D programmable amplifier offset adjustment

OME-A-822PGL/PGH Hardware Manual ---- 41