High Voltage Adjustment - Fluke Victoreen 190 Operator's Manual

6. Make the required voltage, threshold, and jam current adjustments as outlined in the following
paragraphs.
7. When the adjustments are completed, unplug the adapter from the unit.
8. Position the back panel on the adapter.
9. Replace the flat head screw removed in step 3.
10. Plug the adapter back into the unit.
11. Secure adapter to unit by tightening the captive screws located on the top panel of the adapter.

3.9 HIGH VOLTAGE ADJUSTMENT

Refer to Figure 3-5 for location of the high voltage adjustment (RP3). Use the following procedure to
adjust the detector high voltage:
1. Turn unit power OFF.
2. Locate the 3-pin jumper connector JP1 (refer to Figure 3-5 for jumper location).
3. Position the jumper as required for either a surface mount or non-surface mount module by
referring to Figure 3-6.
4. Connect either a DVM with a high resistance probe (> 100Mohm) or an electrostatic voltmeter to
the MHV or BNC connector.
5. Turn the Model 190 on.
6. Adjust RP3 for the required voltage.
It may be necessary to tilt the adapter slightly when
attempting to plug it into the unit.
The Model 190 must be turned ON while making
the probe adapter adjustments.
Determine which module you have (surface mount
or non-surface mount) before continuing, and
ensure that the correct figure is referenced.
NOTE
NOTE
NOTE
Operation
3
Internal Controls
3-7