Operating instructions

Operation PEM-9004
Teledyne Analytical Instruments 34
Sensor quick-diagnosis:
O
2
-value > 50 %
Oxygen cell OK
CO- and H
2
-value: 0 to 1 %
CO-sensor with 1-12-compensation OK*
CO%-value: 0 to 1 %
CO-sensor for upper range OK*
NO- and/or SO
2
-value: 0 to 1 %
NO- and/or SO
2
-value OK*
* indicates the respective sensor option is disabled.
Note: If any other values are displayed, the corresponding
sensor is either in need of service or the electrolyte is
depleted.
4.5.1.3 DRAUGHT DETECTION
The function "Draught detection" displays the flue gas temperature
graphically. Changes in the temperature of the flue gas are shown with a
black bar. No bar appears if the temperature is constant.
Press the Draught Detection button to open the Draught Detection
screen.