7 Using the product
13
7.2
Carrying out a function test
1
Apply low-concentration gas to the sensor (max. 10 sec).
If the sensor does not respond (no alarm), the instrument is defective
and must no longer be used. The instrument must be taken to the
service centre for repair.
Due to the selectivity of the sensor, gas equivalents are not suitable for
checking the function and especially not for calibrating the sensor.
7.3
Carrying out gas detection
ATTENTION
Destruction of the sensor due to external influences!
-
Do not expose the sensor to high concentrations of
H2S (hydrogen sulphide), SO
x
(sulphur dioxides), Cl
2
(chlorine), or HCl (hydrogen chloride).
-
> Prevent alkaline materials or water from coming into
contact with the sensor.
-
> Do not expose the sensor to moisture or frost.
Have the instrument serviced annually by the manufacturer.
Testing natural gas lines or hydrogen lines:
Methane (main component of natural gas) or hydrogen are lighter than
air, detection should be carried out above the pipe / suspected leak.
Testing propane and butane gas lines: Propane and butane are heavier
than air, detection should be carried out below the pipe / suspected
leak, starting from the bottom and working upwards.
Selecting the gas to be detected
1
Select the gas types via the
GAS
key or the
testo Smart App
using the
3-point menu in the top right corner of the output field
After switching on the instrument, the process of cycling through starts
with methane (CH
4
).
Automatic identification of common gas types
The gas is automatically detected and indicated by a flashing gas icon on the
display if a gas concentration currently applied to the sensor has characteristics
of a different gas type than is currently selected.
For technical reasons, this is subject to uncertainty and is intended as a support
for users, and must therefore always be checked by the user.
Summary of Contents for 0560 3163
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