Eppendorf Galaxy Gas Analyzer - Manual (Page 32)

Galaxy® Gas Analyzer — Operating manual
32
6.3.2 Peak reading
You can toggle the reading mode between normal (current) and peak readings. In peak reading
mode, the instrument will only display the peak value for each of the channels. These values can
then be stored manually by pressing the Store key or, if logging mode is enabled, automatically at
the appropriate logging interval.
The peak value is reset after a reading is stored or by exiting the peak mode using the
appropriate soft key.
The current mode of operation can be identified by the status of the soft key labeled either
Normal or Inverse, where inverse indicates Peak mode is active.
6.3.3 Hold reading
The hold reading option allows you to freeze the currently displayed reading. This allows it to be
manually recorded or moved away from the sample point. Hold the reading by pressing the Hold
soft key; the readings will stay fixed until you press the Hold key again or you press the Store key
to store the reading.
The current mode of operation can be identified by the status of the soft key labeled either
Normal or Inverse, where inverse indicates Hold mode is active.
6.4 Sampling on Galaxy CO
2
Incubator
1. Perform an Auto-Zero on your Galaxy incubator.
2. Turn off CO
2
gas by reprogramming setpoint for CO
2
to 0.0 % to prevent CO
2
from being
injected into the chamber, which would give a false reading.
3. Use a flow rate  0.5 liters/minute to take the sample.
4. Keep the outer door closed.
5. Proceed with sampling as instructed above/below.
6. Remember to reset the CO
2
setpoint to desired level after sampling.
For detailed information on how to perform an Auto-Zero and program setpoint, refer to your
Galaxy CO
2
Incubator operating manual.
Hint!
When the instrument is actively in Hold mode, both the Pump and Peak keys are deactivated.
6
Taking
read
ing
s