Specifications

MODEL 300 COMBUSTION ANALYZER

Instruction 24-9223 4-1

4 CALIBRATION

NOTE: Analyzer calibration is available from authorized

Bacharach Service Centers.

This section describes how to check the combustion analyzer’s calibration,

and how to adjust the three potentiometers.

• Sensor and/or Control Panel Removal

• Ambient Temperature Adjust

• Toxic Gas Span Calibration

• Thermocouple Span Calibration

• Oxygen Sensor Calibration

The potentiometers should be adjusted whenever the analyzer is deter-

mined to be out of calibration using the procedures described in this

section.

Calibration should be checked at least once a month, or whenever neces-

sary as determined by experience.

To check calibration, follow the calibration procedures as described in this

section, but do not remove the control panel or make adjustments as

instructed. The control panel needs to be removed only to access the

calibration potentiometers, and to remove the optional NO

and SO

sensors.