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Calibration Manual
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“Entering the Password” section above.
When the new password is accepted then the message “Password changed” is displayed.
The F1 key [OK] is used to return to the measurement mode.
Restoring Factory Default Password
Restoring the factory default password [1234] can be done as follows:
1. Remove the Meter’s bottom case as described under “Disassembly”.
2. Locate the PCA Battery Terminals as shown in Figure 3. Observing correct polarity,
use an external lab supply or battery to apply 9 volts to the PCA battery terminals.
TP8 and TP10 can also be used to apply power to the PCA.
3. Power the Meter on using the front panel power button.
4. Locate the PCA CAL key pad as shown in Figure 3.
5. Short the CAL key pad terminals to reset the password. When the password is reset,
the Meter beeps to indicate that the action is complete.
Battery Terminal 9 VCAL Key Pad
TP8
TP10
est90.emf
Figure 3. PCA Component Location
Adjustment Procedure Operation
The Meter will prompt the user through steps in the Calibration Adjustment Procedure
with screens showing the live reading, source value for the step, and the calibration step
number. Figure 4 shows a screen shot of the first step of the calibration adjustment
procedure.
Next
-0.03
mVDC
Save Abort
Source: 0.0000 mV 0.000Hz
Calibration Step: 1 of 56
CALIBRATING...
Manual Range
500 mVDC
Ref
8:10pm 06/13/07
Calibration
est91.emf
Figure 4. Calibration Adjustment Screenshot
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