Monroe-electronics Electrostatic Voltmeter - Isoprobe® - model 279L Uživatelský manuál stáhnout pdf (Strana 15)

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7. Check the response to negative steps in a similar manner.

8. Switch to standby.

J. Noise Check:

1. Replace the oscilloscope with an rms voltmeter. Noise is typically 0.6mV rms.

K. Output Calibration:

1. Connect the rear panel output connector to a DVM

2. Adjust ZERO 1 for zero volts on the DVM and the front panel meter.

3. Slowly apply voltage to the test plate until it is precisely +300V.

4. The DVM at the output should +3.00V

0.1%. Adjust R5 if necessary to meet this condition.

5. The front panel meter should indicate +300.0

0.1% LSD.

6. Repeat steps 3 through 5 using –300v.

7. Remove the test equipment and replace the cover. This completes the adjustment procedure.

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Monroe-electronics Electrostatic Voltmeter - Isoprobe® - model 279L Uživatelský manuál Strana 15