BNC 1105 Universal Counter - Manual (Page 84)

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will disappear from the display as calibration is done. On the
contrary, the NG message will show on the display as calibration is
failed.
6.7 How to do the ATT x 10 Gain Calibration via CH1
The Offset Calibration via CH1 is for checking ATT x 10 and DC +9V.
Please do the following procedures to finish the calibration.
1. Press UTILITY > CAL > Enter Security Code > Cal Diag > Gain
Att1.
2. Use the BNC T-connector with 2 BNC cords to link an Agilent
33220A and a DMM (multimeter).
3. Under the Agilent 33220A operation, the procedures should be
Utility > DC ON > Output Setup > Hi-Z.
4. Adjust the voltage on the Agilent 33220A, and let the DMM
displays +5.000V ±0.001V.
5. Remove the input source, from the DMM, on the counter.
6. Press the softkey under RunCal to do the calibration. Then, the
counter’s display will show “Calibrating…”. The finished message
will disappear from the display as calibration is done. On the
contrary, the NG message will show on the display as calibration is
failed.
6.8 How to do the ATT x 10 Gain Calibration via CH2
The Offset Calibration via CH2 is for checking ATT x 10 and DC +9V.
Please do the following procedures to finish the calibration.
1. Press UTILITY > CAL > Enter Security Code > Cal Diag > Gain
Att2.
2. Use the BNC T-connector with 2 BNC cords to link an Agilent
33220A and a DMM (multimeter).
3. Under Agilent 33220A operation, the procedures should be Utility
> DC ON > Output Setup > Hi-Z.