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Symbols and writing standards
Represen-
tation
1. ...
2. ...
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2.2.
Ensure safety
> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
> The testo 380 must be checked for any visible damage before
commissioning. Do not commission the testo 380 if there are
any signs of damage on the housing, mains unit or supply lines.
> Do not perform contact measurements on non-insulated, live
parts.
> Do not store the product together with solvents. Do not use any
desiccants.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts from
Testo.
> Any further or additional work must only be carried out by
authorised personnel. Testo will otherwise refuse to accept
responsibility for the proper functioning of the measuring
instrument after repair and for the validity of certifications.
> Only use the device in closed, dry rooms and protect it from rain
and moisture.
> Temperatures given on probes/sensors relate only to the
measuring range of the sensors. Do not expose handles and
feed lines to any temperatures in excess of 70 °C unless they
are expressly permitted for higher temperatures.
Explanation
Note: Basic or further information.
Action: more steps, the sequence must be followed.
Action: a step or an optional step.
Result of an action.
Control keys of the instrument or buttons of the
program interface.
2 Safety and the environment
7
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