Specifications

CO2 Analyzer 2810/2815/2820
Instruction 19-9222
12
CO2 Analyzer 2810/2815/2820
Instruction 19-9222
13
3. Using the Calibration Accessories listed in Section 4.1, attach a CO
2
calibration gas cylinder to the inlet of the analyzer as shown in Fig-
ure 3. The applied CO
2
concentration must equal the gas value dis-
played in the top line of the Gas Calibration screen.
Important! Do not attempt to calibrate the analyzer if the
pressure gauge closest to the tank reads below 5 psi.
4. Adjust the regulator attached to the gas cylinder for an outlet pressure
of 2 psi (equivalent to a flow rate of approximately 120 cc/minute).
Observe that the gas level displayed on the second line of the Gas
Calibration screen should slowly rise to the value displayed in the top
line.
5. Allow the calibration gas to flow until the second line of the Gas Cali-
bration screen stabilizes, then press the f
1
button.
If the gas calibration procedure was successful, the display will show
GasCal
OK
If the procedure was unsuccessful, the message
GasCal
Failed
will be displayed. If this happens, retry the Gas Calibration procedure,
ensuring that the analyzer is exposed to the correct concentration of
calibration gas. If the procedure is still unsuccessful, then the analyzer
must be returned to a Bacharach Service Center for evaluation.
6. This completes the Gas Calibration procedure. Shut off the regulator;
then remove and store the calibration accessories.