Thermo Scientific 370 Operating And Maintenance Manual page 60

Section 5
Routine Maintenance
Note To remove the IR sensor, if applicable, first power the unit off. Then
turn the two thumbscrews on the top duct until the cover plate disengages.
Secured on the inside of the plate is a dummy sensor (Figure 5-12). ▲
Figure 5-12. Dummy Sensor
Figure 5-13. IR Sensor with Cable
Grip the IR sensor and carefully pull it downward. Unscrew the cable from
IR sensor (Figure 5-13). Set the sensor aside. See Step 9 for the IR sensor
disinfection procedure. Connect the dummy sensor to the cable. Fit the
installed dummy sensor up into the previous sensor location.
When the power is turned on with the IR sensor removed, the display
toggles between "REMOVE HEPAs", "REMOVE WATER", and "PRESS
ENTER". If "ENTER" is not pressed within 1 minute, the display toggles
between "POWER OFF" and "REPLACE IR". When the unit is powered
back on with the IR sensor reinstalled, the display returns to "SYSTEM
OK".
Figure 5-14. Displays with IR Sensor Removed
Thermo Fisher Scientific Steri-Cycle CO Incubator 5-11
2