HP 83487A User Manual page 53

Figure 3-5. Electrical Channel Calibrate Menu
To calibrate other devices
The information in this section applies to both optical and electrical measure-
ments. Since the mainframe's CAL signal is a voltage source, it cannot be used
to calibrate to the probe tip when the units are set to Ampere, Watt, or
Unknown. Instead, set the external gain and external offset to compensate for
the actual characteristics of the probe or device. If you do not know the actual
characteristics, you can refer to the typical specifications that came with the
probe or device.
1 Press the plug-in module's front-panel channel SETUP key.
2 Press External scale.
3 Press Atten units Ratio, Attenuation 1:1, and then Units Ampere (Volt, Watt, or
Unknown).
4 Press Ext gain, and enter the actual gain characteristics of the probe or device.
5 Press Ext offset, and enter the offset introduced by the probe or device.
Calibration Overview
User Calibrations—Optical and Electrical
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