Siemens SITRANS F MASS 6000 Ex d, Operating Instructions Manual, Page: 19 / 31

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Intrinsic safe terminals in the connections room are in general evaluated as „ia“ for gas
group IIC.
The output terminals 31-32 is set in „active mode“ which means that it can be connected to other
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When the terminal 31-32 is in „active mode“ may it only be connected to product there is passive.
The manual must be followed very carefully.
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Active output shall be evaluated as barrier output, and the L
o
and C
o
is only valid in that case.
When the „active output“ for „current outputs“ is connected to safe area, „repeater units“ should
be used.
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This „active output is evaluated to be safe when it is connected to the MTL barrier type MTL 760
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o
: 10 V; I
o
: 200 mA; P
o
: 0.5 W.
This combination gives the maximum external values for the cable: L
C
: 100
P
H and C
c
: 20nF.
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