Safety Instructions - RMG TERZ 94 Operating Instructions Manual

SAFETY INSTRUCTIONS

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Safety Instructions
The TERZ 94 / 94-S volumeter is used for measuring the volume at measurement conditions of
non-corrosive gases and fuel gases. Measurement of corrosive gases is only permitted if the special
designs are used which have been developed for such purpose. These meters are not suitable for
measuring liquids, otherwise they will be destructed.
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The TERZ 94 / 94-S complies with currently applicable standards and regulations. However, failure
to operate them properly may cause hazards.
Persons who install or operate the TERZ 94 / 94-S volumeter in areas subject to explosion hazards,
must be familiar with the currently applicable explosion protection standards and regulations.
The electronic totalizing unit of the explosion-protected design has been approved for use in areas
subject to explosion hazards and its code is:
The appropriate certificate of conformity can be found in the annex and its reference number is:
Please observe the following signs:
• Only the explosion-protected design of the TERZ 94 / 94-S may be used in areas
• The battery must be changed in an area without explosion hazards.
• The specifications on cable type and cable length in this manual and in the ex-
• Modifications to the device make the Ex approval invalid and are therefore prohibited.
It is essential to observe the warning information in these operating instructions and the generally
applicable safety rules.
No warranty claims can be asserted if there is unauthorized interference with the device!
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Danger of explosion
In the manual, this symbol warns you of an explosion hazard. Please observe the
instructions given next to this symbol. As to the danger of explosion, please note the
following in particular:
subject to explosion hazards. Connect the pulse outputs of these devices only to
intrinsically safe circuits.
approval must be observed.
Damage to property
In the manual, this symbol warns you of possible damage to property. The instructions
given next to this symbol inform you about what you can do to avoid damage to the
TERZ 94 volumeter.
II 2 G EEx ib[ia] IIC T3, T4
TÜV 02 ATEX 1970
Manual TERZ 94 · EN09a · 2017-11