SS2100i-1 Gas Analyzer
B–2 4900002224 rev. E 12-18-20
Excessive Sampling Gas Temperatures and
Pressures
The embedded software is designed to produce accurate measurements only
within the allowable cell operating range (see Table A-1 on page A–1).
Pressures and temperatures outside this range will trigger a Pressure Low
Alarm or Pressure High Alarm, Temp Low Alarm or Temp High Alarm
fault.
Electrical Noise
High levels of electrical noise can interfere with laser operation and cause it to
become unstable. Always connect the analyzer to a properly grounded power
source. Refer to “Protective chassis and ground connections” on page
3-11.
Contamination
Contamination and long exposure to high humidity are valid reasons for
periodically cleaning the gas sample transport lines. Contamination in the gas
sample transport lines can potentially find its way to the sample cell and
deposit on the optics or interfere with the measurement in some other way.
Although the analyzer is designed to withstand some contamination, it is
recommended to always keep the sample transport lines as contamination free
as possible.
Tokeepthesampletransportlinesclean
1. If mirror contamination is suspected, see “Cleaning the Mirrors”
on page B-3.
2. Turn off the sample valve at the tap in accordance with site lock-out,
tag-out rules.
3. Disconnect the gas sample transport line from the sample supply
port of the analyzer.
The cell temperature operating range for analyzers that are
equipped with heated enclosures is equal to the enclosure
temperature setpoint ±5 °C.
If the pressure, temperature, or any other readings on the LCD
appear suspect, they should be checked against the specifications
(see Table A-1 on page A–1).
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