GE MN-ValVue-v2-8-IOM Manuel de service télécharger pdf (Page 585)

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Signal Calibration Procedure

3. Turn the air off and click Set Low Pressure.

Gain calibration

1. Right-click and from the popup menu select Full Open (on an ATO valve).

2. Click the Calib. Pressure button. A dialog appears.

3. Enter the supply pressure in the Pressure Value field.

4. Click Set High Pressure.

Signal Calibration Procedure

The Calibrate tab allows you to recalibrate the signal sensor in the SVI. The sensor is

calibrated at the factory and does not usually require recalibration, but if needed, this dialog

provides a convenient method. The Reset to Factory button returns the calibrations to those

that were set before delivery of the SVI.

The currently measured value of the primary input is displayed and can be compared to

reference signals to see if recalibration is necessary. Calibrating the primary signal can be

done most easily with a variable current source.

The procedure for recalibration is:

Low Calibration

1. Click the Calib. Signal button. A dialog appears.

2. Enter 4 in the signal value field.

3. Set the current to 4.00 mA and click Set Low Signal.

High Calibration

1. Click the Calib. Signal button. A dialog appears.

2. Enter 20 in the signal value field.

3. Set the current to 20.00 mA and click Set High Signal.

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GE MN-ValVue-v2-8-IOM Manuel de service Page 585

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