Thermo Scientific G100 Series, Operating Manual

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Thermo Scientific G100 Range CO
2
Analyser
6-1
6
Taking Readings
Preliminary Checks - Best Practice
Prior to use, it is good practice to ensure that:
Step 1 The instrument has the correct time and
date set.
Step 2 The sample filter is fitted and that it is clean
and dry.
Step 3 The battery has a good charge (minimum
25% charge, even if only a few readings are
required).
Step 4 The memory has sufficient space available.
Step 5 The main gases have been auto-zeroed,
without gas concentration present.
Step 6 If necessary check the span calibration with a
known concentration calibration check gas.
Step 7 Take readings.
• Do protect the instrument from strong direct
sunlight which will quickly raise the temperature of
the instrument beyond its operating range and the
LCD display will appear almost black. The contrast
setting cannot then alter the contrast.
• Do remember to always use the sample filter! If the
sample filter becomes flooded, change it and ensure
all sample tubes are clean and dry before re-use.
• Don’t place the instrument against anything hot as
this may cause excessive internal temperatures which
can lead to erroneous readings.
• Don’t get the instrument wet, for example exposure
to rain.