Model 3100 Analyzer Instruction Manual
Page 36
Manual file name: MN-A-0005, Rev. C
Manual P/N: C5-06-4900-16-0
4.1.3.1.3 Return to service
Replace cables, and terminal blocks. Reapply power. Change the Analog Voltage Output setting using
the pushbuttons on the control panel or the RS-232 service port to match the new hardware settings.
Perform a calibration check. Check the functionality of the changes to ensure that the new settings are
recognized by the Model 3100.
4.2 Routine periodic maintenance
Maintenance for the Model 3100 oxygen analyzer is simple. Apart from the normal maintenance for any
instrument, such as cleaning the chassis, wiping the display, and replacing the sensor, the Model 3100
does not require any major periodic servicing. Calibration of the sensor on a known gas source should be
performed on a regular basis. The chart below should serve as a general guide for maintenance
personnel (see Figure 34).
Task Frequency
At commissioning Annually As required
Calibrate the sensor
Clean the analyzer chassis and
display panel with a soft cloth.
Keep the ventilation openings
unobstructed.
Validate the display to a known
gas source
Replace the oxygen sensor
Sensor life expectancy
5 – 7 years
4.2.1 Validate display to a known gas source
With the Model 3100 analyzer in “RUN” mode, apply a Certified Standard Grade bottled gas to the RSM
with an oxygen concentration within the analyzer’s configured range. Wait for the reading on the 7-
segment LED display to stabilize. Record the reading and match it against the oxygen concentration
indicated on the test gas bottle certification tag. Perform system calibration (see section 3.2.1) if the
analyzer reading is out of accuracy tolerance. Refer to Appendix B Specifications.
Fig. 34, Maintenance schedule
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