3
Description of the instrument
16
The probe contains sensitive visual components. Please handle the probe
with care.
Strong vibrations alter the factory calibration. Checking of readings in fresh
air 350 to 450 ppm CO2 (urban air up to 700 ppm CO2).
Avoid dew on the probe, otherwise long-term stability will be impaired. If
there is dew on the probe, this can lead to higher CO2 readings.
If the ambient temperature changes (change of measuring location, e.g.
indoors to outdoors or vice versa), the probe requires an acclimatization
phase of a few minutes.
After the instrument is switched on, there is a sensor warm-up phase of
approx. 30 s.
The CO2 concentration in the sensor requires approx. 60
the environment. Gently waving the probe reduces the acclimatization time.
Keep the probe as far away from your body as possible. This avoids any
influences due to the CO2 content of the air you breathe.
Connect CO
2
probe to the handle
Turn quick-release connector,
viewed from the handle end, through
90° anticlockwise until it locks in
place.
Insert probe head into the handle
(pay attention to coding).
Turn quick-release connector back
through 90° until it locks in place.
The CO
2
probe is ready to use.
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