eL-720 User’s Guide
5
SENSOR REPLACEMENT
In the event of a failed sensor (as indicated by the Failed Sensor
Alarm), cleaning or replacement of the sensor is necessary. First,
clean the sensor as directed on page 4. If an alarm is still heard,
the sensor must be replaced. To replace the sensor:
1. Turn the power off.
2. Remove the sensor compartment cover by loosening the
sensor compartment cover screw.
3. Remove the 2 screws holding the sensor in place with a 1.5
mm hex wrench.
4. Grasp the old sensor with your fingers near the screw holes
and firmly lift out of the sensor compartment.
5. Firmly press the new sensor into the compartment, noting
alignment of the sensor connector tab and gas ports of the
sensor with the mating features in the instrument.
6. Firmly tighten sensor in place with 2 screws and 1.5 mm hex
wrench.
7. Replace and fasten sensor compartment cover.
Replacement Sensor Kit
Part Number
ELS-7CO2
