ENMET MX-32 - Manual (Page 23)

MX32 E NGUARD ENMET Corporation
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5.4.2 Calibration For regular preventive maintenance
C AUTION : This procedure is to align the MX32 C ONTROL and S/T displays only. Calibration of
sensors M UST be done at the sensor/transmitter, in accordance with the S/T manual.
The S/T for Oxygen does not have a zero point. Therefore, a calibration of the S/T in accordance with the S/T manual
should be adequate for alignment.
See section 5.1.1 to enter a valid access code to enter the maintenance menus. Press the + switch to move through the
maintenance menus until the CAL is flashing.
1. Press ENTER switch while CAL is flashing to enter the calibration menu.
Press ENTER
cal
Press + or –
to select channel to be
programmed. ▲
CAL
When the channel
indicator is correct,
Press ENTER
2. Apply clean 20.9 oxygen (clean air) to the sensor.
Display will show the current zero value, the XO over the wrench indicates zero adjustment.
3. If necessary (display does not equal Zero) adjust the measurement to Zero by pressing + or – switches until display
shows Zero. Press ENTER.
Press ENTER ▲
0 Xo
4. Apply Calibration gas to the sensor and wait until the signal stabilizes
Display will show the current gas measurement, the XF over the wrench indicates sensitivity adjustment.
5. Press ENTER, to indicate sensitivity adjustment
▲
30
Xf
6. If necessary (display does not equal Span) adjust the measurement to the Span by pressing + or – switches until
display shows the correct measurement. Press ENTER.
Press ENTER to update adjustment
▲
30
Xf
Then the request to save calibration is displayed
7. Press + or – to select OUI (yes) or NON (no) for channel calibration to be updated. Press ENTER.
If you select NON and press ENTER the calibration will not be updated.
If you select OUI and press ENTER the calibration will be updated.
Press ENTER ▲
enrg
oui
8. Calibration is complete MX32 C ONTROL display returns to normal display mode.
▲
0
co