MVR-300™ Refrigerant Gas Detector
40
P/N: 6203-9000 Version 1
8.9.5
Output Status Flags
Output status flags are readable (using function code 01) and writable (using function code 05).
NOTICE
Before writing to any “locked” registers, be sure to use the Parameter Unlock register
(2000) first to unlock the registers and (if desired) to re-lock those registers afterwards.
Reg
Addr
Name
Description
Data
Type
Def
Val
R/W
4000
Offline mode
Setting this flag places the detector into
offline mode. When offline the detector will
not respond to gas events or generate alarm
conditions. The flag will remain asserted for
the duration of offline mode. Offline mode
will end after expiry of the offline mode
timeout or by clearing this flag.
Boolean
0
R. W if
un-
locked
4001
Calibration
expired
1 => The sensor requires calibration
Can be cleared by performing a calibration or
by resetting this flag.
Boolean
0
R. W if
un-
locked
4002
Start Zero
Calibration
Procedure
Setting this flag triggers the automatic zero
calibration procedure. The flag will remain
asserted during the procedure. Writing a zero
to the flag during the procedure will cancel
the procedure and the detector will return to
normal operation.
Boolean
0
R. W if
un-
locked
4003
Start Span
Calibration
Procedure
Setting this flag places the detector offline
and triggers the automatic span calibration
procedure. The flag will remain asserted
during the procedure. Writing a zero to the
flag during the procedure will cancel the
procedure and the detector will remain offline
for the duration of the span calibration
recovery time.
Boolean
0
R. W if
un-
locked
4004
Perform
Immediate Zero
Calibration
Procedure
Setting this flag performs an immediate zero
calibration. The detector will return to normal
operation on completion.
Boolean
0
R. W if
un-
locked
4005
Perform
Immediate
Span
Calibration
Procedure
Setting this flag performs an immediate span
calibration as long as the detector is already
in offline mode. The detector will remain
offline for the duration of the span calibration
recovery time after completion of the
procedure
Boolean
0
R. W if
un-
locked
4006
Alarm Flag
If asserted then a gas alarm state exists.
Clearing this flag will clear any latched alarm
states.
Boolean
0
R. W if
un-
locked
4007
Clear last fault
Clear non-active faults from LAST FAULT
register. If any current faults are still active
then these will be held in LAST FAULT
register.
Boolean
0
R. W if
un-
locked
www.
.com
1.800.561.8187
