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Calibration Information
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Calibration Adjustment
The Meter features closed-case calibration adjustment using known reference sources. The Meter measures
the applied reference source, calculates correction factors, and stores the correction factors in nonvolatile
memory. The following sections present the features and Meter pushbutton functions available during the
Calibration Adjustment Procedure. Should the Meter fail any of the performance tests, perform the Calibration
Adjustment Procedure.
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Use these steps to view the Meter calibration counter:
1. While pressing K, turn the rotary switch from OFF to Ω function. The Meter should display ZCAL.
2. Press gonce to view the calibration counter. For example, n001.
3. Turn the rotary switch to OFF.
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1. While pressing q, turn the rotary switch from OFF to Ω function. The Meter should display ZCAL.
2. Press gonce to view the calibration counter. For example, n001.
3. Turn the rotary switch to OFF.
Calibration Adjustment Password
To start the Calibration Adjustment Procedure, the correct 4-digit password must be entered. The default
password is1234. The password can be changed or reset to the default as described in following paragraphs.
Changing the Password
Use these steps to change the Meter password:
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While pressing K, turn the rotary switch from OFF to Ω function.
113:
While pressing q, turn the rotary switch from OFF to Ω function.
The Meter should display ZCAL.
2. Press g once to see the calibration counter.
3. Press g again to start the password entry.
The Meter displays ?.?.?.?
.
The Meter buttons indicated below represent the numbers 1 through 5 when you enter or change the
password:
K = 1 M = 2 q = 3 g = 4 Q = 5
4. Press 4 buttons to enter the current password. To change the password for the first time, enter
K (1), M (2), q (3), and g (4).
5. Press qto change the password.
The Meter displays //// if the entered password is correct. If the password is not correct, the Meter emits a
double beep, displays ?.?.?.?, and the password must be entered again.
Repeat step 4.
6. Press the 4 buttons of the new password.
7. Press g to store the new password.