10.6.4 Model 9772 Pin Type Lead
This lead’s pins are arranged parallel to each other. It is a strong, wear-resistant lead.
10.7 Calibration Procedure
To prevent damage to the instrument, do not input voltage between the positive
SOURCE and SENSE terminals or between the negative SOURCE and SENSE terminals. Also, do not
conduct measurement when the instrument is turned off.
10.7.1 Resistometer Calibration
Use a standard resistor resistant to wear from age and with strong temperature
performance.
Use a resistor with four-terminals, to prevent effects due to the resistor lead lines.
Be sure to assign resistor values in instruments of 1kHz AC. Using a coil resistor will result in
high inductance. For this reason, pure (DC) resistance will not equal effective resistance
(impedance; displayed on the instrument).
Connect the instrument to the standard resistor as shown below:
10.7.2 Voltmeter Calibration
Use a generator that can output a DC Voltage of 60V.
For connection of a generator to the instrument, see the figure below.
Do not apply an alternating current from the instrument to the generator, as the generator
may malfunction.
Use a low-impedance (50Ω or less) voltage source.
If ‘- - - -‘ (disconnect) is displayed on the screen, turn off the power to the instrument and
restart it by pressing the key while holding down key.
This will turn off the disconnect-detection feature. Restart the instrument after calibration.
This will turn on the disconnect-detection feature again.
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