HP 54753A User Manual page 53

1 Press the plug-in module's front-panel channel SETUP key.
2 Press Alternate scale and then Attenuation .
3 You can use the probe calibration to calibrate any network, including probes or
cable assemblies. The instrument calibrates the voltage at the tip of the probe or
the cable input.
To calibrate an HP identifiable probe
1 Press the plug-in module's front-panel-channel SETUP key.
2 Press Calibrate and then Calibrate Probe .
To calibrate a non-identifiable probe
1 Connect the voltage probe to the plug-in.
2 Attach the probe tip to the CAL hook that is located near the floppy disk drive.
3 Press the plug-in module's front-panel channel SETUP key.
4 Press Calibrate , and then Calibrate probe .
If the probe being calibrated has an attenuation factor that allows the
instrument to adjust the gain (in hardware) to produce even steps in the vertical
scale factors, the instrument will do so. Typically, probes have standard
attenuation factors such as divide by 10, divide by 20, or divide by 100.
To calibrate other devices
The information in this section applies to both optical and electrical
measurements. 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 Alternate scale .
3 Press Atten units Ratio , Attenuation 1:1 , and then Units Ampere (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.
Setup Channel Menu
User Calibrations
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