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190 Series III
Users Manual
88
7. Adjust the trimmer screw in the probe housing until a pure square wave shows on the display.
For instructions to access the trimmer screw in the probe housing, see the instruction sheet
for the probe.
8. Press 4 to continue with DC calibration. Automatic DC calibration is only possible for
10:1 voltage probes.
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. Press 4 to exit.
Repeat the procedure for the blue 10:1 voltage probe on input B, the gray 10:1 voltage probe on
input C and the green 10:1 voltage probe on input D.
Note
When using 100:1 voltage probes, choose 100:1 attenuation to perform an adjustment.
100:1 voltage probes require DC-calibration. Trimmer adjustment is not available.
Version and Calibration Information
You can display version number and calibration date:
1. Press
U to show the USER key labels.
2. Press 3 to open the VERSION & CALIBRATION screen.
3. Press 4 to close the screen.
The screen gives you information about the model number with software version, the serial
number, the calibration number with latest calibration date, and installed (software) options. The
LICENSE INFO key opens a screen with information about the Open Source Software license.
The test tool specifications are based on a 1 year calibration cycle. Recalibration must be carried
out by qualified personnel. Contact your local Fluke representative for recalibration.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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