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10 specifications – Eppendorf Galaxy CO2 Sensor User Manual

Page 79

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Equipment options

Galaxy

®

170 R/170 S CO

2

Incubators

English (EN)

79

4. Reopen the door for 15 seconds to release any build-up of humidity.

5. Repeat steps 3 and 4 every 30 minutes while monitoring the

DATALOGGER O

2

Graph. The oxygen level

should recover after a few hours.

6. Leave the incubator for a few more hours to be ensure that the sensor membrane has thoroughly dried

out.

7. Replace the hydrophobic filter disc (see

Replacing the filter disc on p. 77).

8. Re-humidify the incubator.

9. After 2 to 3 hours, carry out an

OXYGEN SENSOR-REF TO ATMOSPHERE (see Referencing to

atmosphere on p. 74). When the referencing has been successfully completed, the incubator is ready for
use.

12.4.10 Specifications

The Oxygen Control option has the following characteristics:

Sensor Type

Self-powered, diffusion-limited, electrochemical cell with temperature
compensation.

Zero Signal in Nitrogen

< 50 μV

Temperature Compensation

± 2 % of signal variation from 0 - 40 °C

Relative Humidity Range

0 - 99 %, non-condensing

Operating Temperature Range

-20 °C to + 50 °C

Resolution

0.01 % Oxygen

Expected Operating Life

1 - 2 years in ambient oxygen

Hydrophobic Filter Operating
Life

No data available on the filter lifespan but we are confident to expect it
will last at least 6 months.

Nitrogen Input Rate

20 L/min at 14.5 PSI (1 bar)

Typical Oxygen Reduction Rates 3 minutes to 16 %

4 minutes to 11 %
8 minutes to 6 %