9. CALIBRATION PROCEDURE
Calibration is provided for ambient temperature, PV sensor input, Analog Output (Retransmission
output) (Optional).
First select the calibration function as described below and then follow the procedure depending on
the parameter to be calibrated. The sequences of parameters that will be available for calibration are
listed below:
Ambient temperature adjustment
PV Sensor input
Retransmission output (calibration for voltage or current)
Ambient temperature adjustment:-
DATA window shows Amb (Ambient temperature adjusts) and PARAMETER window shows message
CAL (CAL) .Press MENU key to edit the Ambient value. DATA window shows ambient temperature
measured by the Vibration Monitor and by applying old calibration data and PARAMETER window
shows amb (AMB). Press MENU key again to edit the displayed value. DP of last digit and last digit
itself will blink to indicate that the value can be changed. Use Inc/Dec (Here Decrement key is used to
shift the digit in editing mode) key to adjust it to desired value. Once the desired value set and press
MENU key, the blinking DP will go off to indicate that the value has been registered. The Vibration
Monitor will automatically save all the new calculations. Ambient temperature adjustment is over.
Press ESC key and then press Inc key to calibrate other parameters or press Escape key to come out
to normal operation.
PV input sensor calibration:-
Note that all signal cards and all input type group must be calibrated before proceeding further. There
is no need to calibrate all input types. Just calibrate only one input type from one group and all other
input types from the same group will be calibrated automatically. Group calibration detail is given in
following table.
Table 34 Group Calibration Detail
Note : Kindly Calibrate following input type for gaining better accuracy.
1) For Group Number 1, calibrate 0-100 mV input type.
2) For Group Number 2, calibrate -10 to 20 mV input type.
3) For Group Number 3, calibrate Pt-100(RTD) input type and
4) For Group Number 4, calibrate 0 to 10 V input type.
When user enters in calibration menu, DATA window shows PV value of corresponding input and
PARAMETER window shows message Cal.z (Zero Calibration) and Channel Window shows 01
which indicate that zero calibration is for channel number 1. User can use any channel out of
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