Fluke 196C user manual Start the probe calibration, Maintaining the Test Tool

Maintaining the Test Tool	8
Calibrating the Voltage Probes

Repeat steps 2 and 3 and proceed as follows:

5	Select Probe Cal with the arrow
	keys, then accept.

A message appears asking you whether to start the 10:1 probe calibration.

6 Start the probe calibration.

A message appears telling you how to connect the probe. Connect the red 10:1 voltage probe from the red input A jack to the red banana jack. Connect the reference lead to the black banana jack. (See Figure 50.)

7	Adjust the trimmer screw in the
	probe housing until a pure square
	wave is displayed.

The test tool automatically calibrates itself to the probe. During calibration you should not touch the probe. A message indicates when the DC calibration has completed successfully.

9 Return.

Repeat the procedure for the gray 10:1 voltage probe. Connect the grey 10:1 voltage probe from the grey input B jack to the red banana jack. Connect the reference lead to the black banana jack.

Note

When using 100:1 voltage probes, choose 100:1 attenuation to perform a HF adjustment. Automatic dc calibration is not possible with this probe type.

8

Continue with DC calibration. Automatic DC calibration is only possible for 10:1 voltage probes.

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