Eppendorf R Series 48R CO2 Incubator User Manual
Page 63
63
New Brunswick Scientific
User’s Guide
ARMING AFTER DOOR OPENING
period has elapsed, so this time period can be
increased in the
ALARM
screen to suit individual circumstances.
8.7.6 Referencing to Atmosphere
NOTE:
It is highly recommended to reference the sensor to atmospheric oxygen
at least once per month.
See Section 8.5.4 for details on this important procedure.
8.7.7 Programming Desired O
2
Level
Program the required oxygen level in the
PROG
screen, following the onscreen
instructions.
8.7.8 Other Precautions
Under normal humidity conditions (95-99% RH), the sensor is unaffected. If
for any reason (such as a large spill inside the chamber or the incubator being
switched off while fully humidified) liquid condenses around the sensor, the
result may be restriction of gas flow and a low sensor signal. Should such
condensation appear on the chamber walls, normal operation can be easily
restored by removing the humidity tray, drying the chamber completely, and
then running the incubator at 37°C for one hour. This will dry out the sensor.
After the hour has elapsed, the humidity tray can be reinstalled and the
incubator humidified again.
For routine service checks of the sensor, see also Section 8.5.9.
8.7.9 Specifications
See Section 8.5.10.
8.8 O
2
Sensor Replacement
When the O
2
sensor needs to be replaced, see Section 8.5.7 for instructions.