ICS-3000 Ion Chromatography System
102 Doc. 065031-04 1/08
2.24 Gas and Humidity Sensors
The TC contains two sensors to detect any gas or humidity that may accumulate
inside the TC. When a certain concentration of gas or humidity is reached (while
the door is closed), the following events occur:
• The corresponding sensor is activated.
• The ALARM LED on the front of the TC lights (red), and remains red as long
as the sensor is exposed to gases or humidity.
• The error is logged in the Chromeleon or Chromeleon Xpress Audit Trail.
• A beep sounds.
What to do when an alarm occurs:
1. Find and eliminate the leak.
2. On the TC Control panel, click the Clear Alarm button.
3. Ventilate the interior of the TC thoroughly before closing the door and
resuming operation.
Adjusting the Sensor Sensitivity
Follow these steps to change the sensitivity setting of the gas or humidity sensor,
or to turn off a sensor:
1. In the Commands dialog box in Chromeleon or Chromeleon Xpress, click the
plus sign beside TC to display the items underneath.
2. Under TC_Temp, select the GasLeakSensor or HumidityLeakSensor
command.
3. Select the new sensitivity setting and click Execute.
To disable the sensor, select Off and click Execute.
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