0019-9376
Revision 0
58
Monoxor
®
XR User Manual
Figure 5-9:
Complete Manual Zero Screen
5.6.3 CO Sensor Span Procedure
1. From the Calibration Menu
(see section 3.8)
, use the UP ( ) and DOWN ( ) arrow buttons
to highlight CO, and then press ENTER to display the CALIBRATE CO screen. This requires
password validation
(see section 3.8)
.
Figure 5-10:
Calibration Menu Screens
“Measured” is the current CO reading, while “Applied” is a known CO level that will be
applied for calibration purposes.
2. Use the UP ( ) and DOWN ( ), LEFT ( ) and RIGHT ( ) arrow buttons to enter an Applied
value that exactly equals the concentration stamped on the CO cylinder.
NOTE:
Bacharach recommends using a 500 ppm calibration gas, however the
calibration range is from 100 - 5,000 ppm. An attempt to calibrate outside this
range will cause the message “Applied Value High”
(or Low)
to appear at the
bottom of the screen.
3. Attach a 500 ppm CO cylinder to the regulator and connect calibration kit components
as shown below. Apply 500 ppm carbon monoxide in an air balance calibration gas.
4. Wait until the Measured reading stabilizes and then press ENTER. The message “Good
Calibration” should briefly appear.
