14
Operation
3-2. Operating Procedure
1.
Power on -> Warm-up -> HOME screen
Turn on the gas detector with the gas sampling tube (or optional
drain filter
or cooling drain filter in case of XP-3380II-E)
attached,
in clean air.
Zero adjustment (20.9% adjustment for oxygen) is automatically
done during the powering-up. Ensure that the zero adjustment is
done in clean air. Inaccurate gas concentrations will be indicated
if the zero adjustment is done in a gas atmosphere.
Do not use the gas detector without with the gas sampling tube
(or optional drain filter or cooling drain filter in case of XP-3380II-
E). Proper gas detection is not possible without it.
Even after the HOME screen is displayed, the reading for zero
may fluctuate or blink due to an ambient temperature change,
etc. For this reason, it is recommended to perform zero
adjustment before use.
For the XP-3340II model, the reading may fluctuate or blink due
to interfering gas which is present in the atmosphere (e.g., CO
2
),
but this is not a device failure.
CAUTION
Perform routine check prior to use (page 44).
If the detector is marked with both temperature classes T3 and
T4, before deploying the detector in a hazardous area, the user
shall check the battery type via the LCD, and ensure that, if
MiMh batteries are fitted, the detector is only used in areas
requiring temperature class T3.
Use of the detector in an atmosphere with greater than 21% of
oxygen will compromise the explosion-proof performance of this
detector.
Detector which is marked with temperature class T4 only, shall
only fitted with alkaline primary batteries.
WARNING
Warm-up
HOME
screen
1.
Power on
2.
Detection
3.
Power off
STEPS
WARNING
Содержание XP-3000II Series
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