Enrg – ENMET MX-32 User Manual
Page 22
ENMET Corporation
MX32
E
NGUARD
18
5.4 Calibration Menu
MX32 C
ONTROL
C
AUTION
:
This procedure is to align the
MX32 C
ONTROL
and S/T displays only. Do Not enter
without first consulting
ENMET
Corporation. 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.
The
MX32 C
ONTROL
calibration menu can be used to check and make minor adjustments to the zero and sensitivity
of the display compared to the sensor signal.
There are two ways to calibrate the
MX32 C
ONTROL
:
Following an Initialization. See section 5.4.1.
For regular preventive maintenance of unit. See section 5.4.2.
5.4.1 Calibration Following an Initialization Non Oxygen Transmitter
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 adjusting the Zero Potentiometer
corresponding to the channel concerned. See Figure 5 for location of Zero POT. O = 4mA.
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.
W
ARNING
:
Do not make adjustment or press ENTER without applying calibration gas, a fault condition will be triggered.
5. Press ENTER, to indicate
sensitivity adjustment
▲
30
Xf
6. If necessary (display does not equal calibration gas) adjust the measurement to the calibration gas by adjusting the
Sensitivity Potentiometer corresponding to the channel concerned. See Figure 5 for location of Sensitivity POT.
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