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Connect the Model P3 to a Model 1550A Strain Indicator Cali-
brator, configured as a full bridge circuit, to channel 1. Set the
1550A to read 0 microstrain, positive polarity, and press the
key. The system will make a series of measurements, and
evaluate the average readings. If the system determines that the
values are not within a reasonable range an error screen will be
displayed:
Zero measurement
Exceeds tolerance
Calibration aborted
Menu = Exit
The system will then revert back to the previous calibration val-
ues. If the readings are within tolerance, the system initiates the
next step:
SYSTEM CALIBRATION
Set calibrator to
+30000 microstrain
CAL = Calibrate
Set the 1550A calibrator to read 30000 microstrain (positive
polarity), and press the key.
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