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In case the communication with an AEM or LOOPM fails, all
corresponding channels will show fault inbetween 10 s.
This signal is not latching (see chapter 3.7).
Display, messages, outputs:
LED module:
LED
Fault
is on
System:
all LED are off, no relay is activated
RBM/REM:
corresponding relay
Fault
is activated
AAM:
4-20 mA:
signal output of detector
0-10 V:
0 or 10 V
in case of communication error: 0 mA or 0 V
LCD module:
under or over scale
(see chapter 3.3.4 or 3.3.6)
message:
Fault
and if over scale is non-
latching:
Short circuit
Printer:
message:
FLT
ATTENTION!
The gas detection system WinPro
®
/ MX62 differentiates the faults of a specific
channel from those of the complete system (chapter 3.6). If channel
malfunctions have to trigger an external measure automatically, the signals in
configuration need to be allocated to one or several relay outputs.
One relay output must always be configured as collective relay if application is
according to EU certificate BVS 03 ATEX G 002 X.
3.3.4.
Negative measured values
The measuring signal is below zero but above the threshold mentioned in
chapter 3.2.5 for under scale of measuring range. Zero fluctuations of the
detectors are within the normal and acceptable range of deviations.
Display, messages, outputs:
LED module:
LED
Power
is on
System:
all LED are off, no relay is activated
RBM/REM:
no relay is activated
AAM:
4-20 mA:
signal output of detector
0-10 V:
0 or 10 V
LCD module:
measured value: >
–
3% of range:
0
<
–
3% of range: <
0
Printer:
no message
3.3.5.
Under scale (US)
In case of under scale, the signal of the detector is below a preset
threshold which is generally
–
5% of the detection range. (Deviating
Summary of Contents for MX62
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