1. testo 350 M/XL precautions
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1. testo 350 M/XL precautions
Risk for
Persons
System
Instrument
1 Power supply:
Do not ever disrupt the PE conductor either inside or outside of the instrument!
Check the ID label to ensure that the model, mains voltage and output coincide with
the actual conditions.
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X
2 Disposing of the measuring cells:
There are nominal amounts of concentrated acid in the measuring cells.
Therefore, dispose of as hazardous waste! Improper handling is hazardous!
X
3 Storing the measuring instrument:
Never store the measuring instrument in rooms with solvents.
Doing so runs the risk of destroying the measuring cells! Ensure that you
observe the specified storage, transport and operating temperatures!
X
4 Rechargeable battery:
Fully recharge the battery before conducting the initial measurement and after the
instrument has gone unused for several days. Recharge the battery every 4 weeks
after longer periods of inoperation. The testo rechargeable battery pack for the
Control Unit and logger should be inserted so that the label faces outward.
Otherwise, there is the danger of a short circuit or reverse polarity should the
isolation jacket become damaged.
X
5 Operating the probe:
When removing the probe from the flue, check if the probe is hot!
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6 Condensate outlet:
Aggressive condensate (acid) exits the condensate outlet.
If the corresponding drainage facility (e.g. hose) is not attached, there is a hazard
for persons and property!
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X
7 EMC:
Exceptionally high amounts of electromagnetic interference can lead to deviations
in reading accuracy that no longer conform to standard. Danger with connected
analog/switch outputs! The plug socket should have a protected earth conductor
connected. The temperature display with control unit and separate probe can jump
by up to 2°C in the case of a thermocouple with earth contact in connection with
a switched-mode power supply.
8 Service and maintenance:
The power plug must always be pulled before opening the housing.
Danger of electric shock! Access the instrument internals must only be done by
authorised personnel!
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9 Non-permissible measurements:
Explosive or ignitable gas mixtures as well as gases that form ignitable mixtures
when exposed to air should not be measured with the above-listed instruments!
X
10 Test gas pressure:
A maximum of 50 mbar is permissable. Higher pressures increase the risk of
destroying the gas sensors! Additionally, test gas must only be used in
well-ventilated rooms!
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X
11 Cleaning the instruments:
Avoid the penetration of water into the instrument at all costs!
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12 Differential pressure probe:
When conducting measurements, observe the permissable measuring ranges;
exceeding tolerance leads to destruction of the sensor!
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13 Condensation:
Avoid exposing the instrument and instrument electronics to condensation.
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14 Measurement in closed rooms:
Ensure that the room is sufficiently ventilated if flue gas concentrations are high.
Otherwise there is a risk of poisoning.
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Summary of Contents for 350 M/XL
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