Qualitrol 509ITM Series, Manual

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Calibrating a Level Gauge to the 509ITM
Overview
All of the input modules on the 509ITM are calibrated at Qualitrol, except for the
Potentiometer (Level Gauge) and Tap Position input modules. These modules and sensor
inputs are specific to the transformer with which they are associated and must be calibrated
on the transformer. This procedure provides the steps for calibrating a Level Gauge to a
509ITM.
CAUTION:
Except for the Potentiometer (Level Gauge) and Tap Position Input
Modules, the input modules of the 509ITM are calibrated using highly
precise measurement equipment. If you inadvertently try to calibrate the
wrong input module, you might cause the 509ITM to malfunction.
Calibrate only the Potentiometer input module. When you are finished,
immediately exit the Calibration tool.
Before You Begin
1. Connect the potentiometer output wires of the Level Gauge to the 509ITM. See the
Hardware Instructions for details.
2. Check that the wiring is correct by adjusting the case face to raise and lower the dial
pointer. Observe the front LCD display of the 509ITM.
• As you raise the pointer, the displayed value should increase.
• As you lower the pointer, the displayed value should decrease.
If the 509ITM is not operating correctly, check the wiring before you begin the calibration
procedure.
Calibration Procedure
1. Connect the computer to the 509ITM and start the Remote Software .
The Desktop Menu window displays.
2. Click [Connect] and enter the password for the Calibrator tool.
• 509 for newer models
• 111111 for older models
3. Click [Start].