Vega VEGAMET 381 Ex Safety Manual - Set Up
4
Set up
4
.1 Instrument parameter adjustment
Since plant conditions influence the functional safety of the measuring
system, the instrument parameters must be set in compliance with the
application.
The following adjustment elements or tools are permitted for adjust-
ment of the instruments parameters for the safety function:
l
The integrated indicating and adjustment unit for on-site adjust-
ment
The parameter adjustment is described in the operating instructions
manual.
It is recommended to document the parameter settings of the
measurement loop.
To prevent inadvertent or unauthorized modification, the set param-
eters must be protected against unintentional access (e.g. by sealing
the protective cover).
Warning:
During the instrument parameter adjustment, the safety function must
be considered as unreliable. This applies until the parameter adjust-
ment is finished.
If necessary, other measures must be taken to maintain the safety
function.
Warning:
With a reset, all values set by the user will be lost and are reset to
factory settings.
4
.2 Mounting and installation
Take note of the mounting and installation instructions of the operating
instructions manual.
During setup, it is recommended to check the safety function, e.g. by
means of a first filling or simulation of the input signal. The procedure
described in chapter "Recurring function test" can be used.
Operation and parame-
ter adjustment
Dangerous de-
vice status
Instrument reset
12
VEGAMET 381 Ex • 4 … 20 mA signal conditioning instruments
4 S
et up
39686
-EN
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