Eppendorf Galaxy CO2 Sensor - Manual (Page 77)

Equipment options
Galaxy ® 170 R/170 S CO
2
Incubators
English (EN)
77
Abb. 12-5: Oxygen sensor removal tool
Fig. 12-5: Oxygen sensor removal tool
4. Using the sensor removal tool, install the new oxygen sensor by turning it clockwise until it is
finger-tight. Do not use excessive force or any metal tool.
5. Reconnect the sensor by plugging the white connector body back in.
6. Make sure that the sensor wires are inside the metal sensor tube to protect them from damage, then
press the rear access cover snugly back in place.
7. After replacing the sensor, humidify the incubator and allow it to stabilize overnight.
8. Calibrate the sensor with reference to the atmospheric oxygen level (see Referencing to atmosphere on
p. 74).
12.4.8 Replacing the filter disc
The hydrophobic filter installed on your Oxygen Control system helps prevent condensation from reaching
the sensor (see Fig. 12-6 on p. 78).
12.4.8.1 To replace the hydrophobic filter disc (membrane)
1. Carefully pull the complete hydrophobic filter holder away from the oxygen sensor holder on the rear
wall of the chamber.
2. With a fingertip or a 10 - 11 mm (½ in) rod, from the rear of the filter holder, gently push the filter
membrane disc and the filter cap out of the holder.
3. Clean and dry the filter holder and cap.
4. Wearing gloves to avoid contaminating the filter disc, gently place the new filter membrane disc into the
filter holder recess. The filter disc works in both directions, so there is no right or wrong side.