WELDIING GAS ANALYZER
CM-650
5/21/2021
11 |
P a g e
May 21, 2021
U:\Documentation\Projects\CM-650\References\Manual
REV C
The CM-650 Welding Gas Analyzer is calibrated at CO2 Meter prior to being shipped. It is
recommended that the device be calibrated annually to maintain optimal functionality.
1. Connect certified 15% or 25% calibration gas to desired port to be calibrated. The 15% and
25% ports must be calibrated individually. If both ports are active, a calibration will not be
possible.
2. Wait unit the channel becomes active. Display will read active and the red or green LED will
be on.
3. Wait 3-5 minutes to allow the channel to fill with the certified gas.
4. To activate the calibration press and hold the manual button for 10 seconds.
5. The display will read:
a. Cali to 15%? Press button to Cali, wait to cancel.” To calibrate the 15% port
OR
b. Cali to 25%? Press button to Cali, wait to cancel.” To calibrate the 25% port
6. Press the button to start the calibration. ***If the button in not pressed in 30 seconds, the
device will return to the home screen***
7. When the calibration is complete the display will read “Calibrated!” and it will return to the
home screen. 8. Repeat these steps for the next inlet port using an appropriate certified gas
concentration.
Calibration:
