Despatch Protocol Controller - Manual (Page 34)

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Calibration Recovery
The Protocol control has a factory calibration recovery feature. This feature allows the
operator to restore the Protocol to an operational condition should a calibration error
occur. The Factory Calibration Recovery feature should only be used as a temporary
fix until a proper calibration procedure utilizing a calibration source can be performed.
Only a complete calibration will restore the Protocol to an optimum performance level.
For proper calibration instructions refer to the calibration section of this manual.
Instructions
1. Select the Diagnose mode by pressing the DIAG key.
2. Press the – (down arrow) key until RCVR SEN is displayed.
3. To recover the control sensor calibration value, press the key sequence +, -, -, +, -,
+.
4. Press the – (down arrow) key until RCVR HIL is displayed.
5. To recover the high limit sensor calibration value, press the key sequence +, -, -, +, -,
+.
The calibration recovery is now complete.