SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 59
6.8 Peak tracking reset procedure
The analyzer’s software is equipped with a peak tracking function that keeps the laser scan centered on the
absorption peak. Under some circumstances, the peak tracking function can get lost and lock onto the wrong peak. If
the PeakTk Restart Alarm is displayed, the peak tracking function should be reset. Refer to the Description of Device
Parameters → for this analyzer for instruction.
6.9 Instrument issues
If the instrument does not appear to be hampered by gas leaks, contamination, excessive sampling gas temperatures
and pressures, or electrical noise, refer to the following table before contacting Service → .
Non-operation (at or after start up)
Is the power connected to both the analyzer and power source? Is the switch on?
Is the power source good? (100-250 VAC at 50-60 Hz, 9-16 VDC, 18-32 VDC).
Check fuse(s). If bad, replace with equivalent fuse.
Contact Service for more information, refer to Service → .
Turn off the power to the unit and check the optical head cables for a loose connection. Do
not disconnect or reconnect any optical head cables with the power connected.
Check the inlet and outlet tubes to see if they are under any stress. Remove the connections
to the inlet and outlet tubes and see if the power goes up. The existing tubing may need to
be replaced with stainless steel flexible tubing.
Refer to the Standard documentation → for your analyzer for instructions to capture
diagnostic data and submit to Endress+Hauser.
Possible alignment problem. Contact Service for more information, refer to Service → .
Possible mirror contamination issue. Contact Service for more information, refer to Service.
If advised to do so, clean the mirrors by following the instructions Cleaning the mirrors.
Refer to the Standard documentation → for this analyzer for instruction.
Refer to the Standard documentation → for this analyzer for instructions to capture
diagnostic data and submit to Endress+Hauser, refer to Service → .
Refer to the Description of Device Parameters for your analyzer for instruction.
Refer to the Standard documentation → for this analyzer for instructions to capture
diagnostic data and submit to Endress+Hauser, refer to Service → .
Reset the Peak Tracking function. Refer to the Standard documentation → for this
analyzer for instruction.
Refer to the Description of Device Parameters for your analyzer for instructions to capture
diagnostic data and submit to Endress+Hauser, refer to Service → .
Refer to the Description of Device Parameters for your analyzer for instruction.
Reset the Peak Tracking function. Refer to the Standard documentation → for this
analyzer for instruction.
Pressure low alarm or pressure high
alarm
Check that the actual pressure in the sample cell is within specification. See Specifications
→ .
If the pressure reading is incorrect, check that the pressure/temperature cable on the
bottom of the electronics enclosure is tight. Check the connector on the pressure sensor.
Check the pressure connector on the backplane board.
Temp low alarm or temp high alarm
Temp low alarm or temp high alarm
(continued)
Check that the actual temperature in the sample cell is within Specifications → . For
systems with a heated enclosure, check that the temperature in the sample cell is within ±5
C of the specified enclosure temperature.
If the temperature reading is incorrect, check that the pressure/temperature cable on the
bottom of the electronics enclosure is tight. Check the connector on the cell temperature
sensor. Check the temperature connector on the backplane board. (Note: A temperature
reading greater than 150 °C indicates a short circuit on the temperature sensor leads; a
reading of less than –40 °C indicates an open circuit).
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