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MERCAP – INSTRUCTION MANUAL
7ML19981CM01.1
Temperature stability:
0.15 pF (0pF) or <0.25% (typically <0.1%) of actual
measurement value, whichever is greater over the full
temperature range of the product.
Non linearity and
reproducibility:
< 0.1% full scale and actual measurement respectively
Accuracy:
<0.1% of actual measurement value
Features:
•
polarity protection input circuit
•
E.S.D. protected (Loop)
•
galvanically isolated measurement circuit
•
fully potted with epoxy resin
Diagnostics (Includes fault
alarm):
•
primary variable (PV) out of limits
•
system failure measurement circuit
•
deviation between A/D and D/A converter values
•
check sum
•
watch dog
•
measurement current out of range
Measurement current
signalling:
NAMUR NE 43
Function rotary switch
1
Position 1:
Position 2:
Position 3:
Position 4:
4 mA measurement value (set)
20 mA measurement value (set)
3.8 up to 20.5 mA range by means of a field service
programmer
functionality test
Approvals:
•
Cenelec, FM/CSA (IS), FM (Ex-proof), CE, ATEX
1
HART communication in all switch positions
