Operation
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Test Setup 2
= Set the charge amplifier to „RESET“, connect the Charge
Generator to the charge amplifier input.
= Set the calculated voltage value on the „DIAL“; set the po-
larity to the opposite (wrong) value.
= Press the „ON“ button on the Charge Generator and keep
it depressed. Switch the charge amplifier to OPERATE.
= Release the „ON“ button, read off and evaluate the measu-
rand at the charge amplifier.
4.2 Voltage Range 0 ... 10 V
Connect to the BNC connector marked „VOLTAGE“. The
value to be set on the „DIAL“ is obtained as described
above. One turn of the knob represents 1 V change in
voltage, that is the resolution of the 100-digit scale is 10
mV per division.
Combined with an external calibration capacitor, the
voltage output can be used for testing the charge amplifier.
If the voltage output is used to test a voltmeter, then it
may be necessary to consider the error caused by a load.
Depending on the „DIAL“ setting, the internal resistance of
the voltage output will be 1 ... 3,5 kΩ.
4.3 Testing the Battery Charge
The „VOLTAGE“ output is also used for this purpose and
measurement made with a DVM (input resistance ≥1 MΩ)
with „DIAL“ setting 999. A voltage value below 9,980 V
indicates a discharged battery.
4.4 Change of Batteries
Two Type AA batteries stated on the base of the unit are
required. These battery types are available in local stores.
Changingthe batteries requires disassembly of the device.
Please contact your Kistler Service Center to send in
your device for battery change. As a result of an integral
semiconductor reference element, the Charge Generator
does not need to be recalibrated after a battery change.
Following a battery change, the output voltage at the
VOLTAGE connection in the DIAL setting 999 should be
9,980 ... 10,020 V.