Safety Instructions - RMG EC 900 Operating Instructions Manual

SAFETY INSTRUCTIONS

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Safety instructions
The EC 900 PTZ corrector is used to calculate the volume at base conditions of gases from the vol-
ume at measurement conditions, pressure and temperature as well as to transfer measured or cal-
culated values via digital interfaces and pulse or analogue outputs.
The EC 900 complies with the currently applicable standards and regulations. However, failure to
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operate it properly may cause hazards.
Persons who install or operate the EC 900 PTZ corrector in areas subject to explosion hazards must
be familiar with the currently applicable explosion protection standards and regulations.
The EC 900 PTZ corrector has been approved for use in areas subject to explosion hazards. You
must not fail to check the marking on the device since there are different device versions for Ex
zones 1 and 2! Devices which are only approved for Ex zone 2 must not under any circumstances
be used in Ex zone 1!
Please follow the instructions below:
Danger of explosion
In the manual, this symbol warns you of an explosion hazard. Please follow the instruc-
tions given next to this symbol. As to the danger of explosion, please note the following
in particular:
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
EC 900 PTZ corrector.
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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The EC 900 may only be used in the Ex zone for which it has been approved.
The device for Ex zone 1 is intrinsically safe and may only be connected to certified
intrinsically safe circuits.
The device for Ex zone 2 must not be opened during operation. Prior to opening the
device, you have to check the atmosphere.
The approval of the device for use in areas subject to explosion hazards will expire if
the device is changed impermissibly.
Communication between the EC 900 and ISS 900 or CU 900 is permissible only via
the RS 422 interface.