Specifications

CO2 Analyzers 3100 & 3150
Instruction 19-9339 34
7.2 Calibration Gases
User calibration of the instrument will improve the data accuracy in
the range of the calibrated gases used. However, it may cause less
accurate readings of concentrations outside this calibrated range.
Users should select the correct calibration gas for the expected gas
levels on their particular application. Only use gases with a known
certifi ed gas concentration.
NOTE: Certifi ed calibration gases can be supplied by Bacharach.
Warning: For each gas used the appropriate material safety
data sheet must be read and understood before proceeding.
Calibration gases and the use of pressure regulators can be
dangerous.
7.3 Calibration Set-Up
The regulator supplied with the calibration kit has been confi gured
to deliver a fi xed fl ow. It only requires a few turns to open and no
adjustment is necessary.
Warning: When the instrument is being calibrated there are
two possible exits for the gas; via the usual manner out of the
exhaust port of the instrument or via the port on the pressure
relief valve. It is recommended that both ports have exhaust
tubing attached. The exhaust tubing must emerge in a well-
vented area. Ensure that there are no leaks in the tubing
connections. The calibration should always be carried out in a
safe area with all necessary precautions taken as all pressurized
gases are potentially dangerous.