Honeywell SMV800 - Page 206

Page 194 SMV800 Modbus User's Guide Revision 1.0
Warning
Comm Sec NC
Failure
This is a roll-up
status bit that is set
when any of the
communication
module non critical
status is set such as
• Display NVM
Corrupt
Power cycle the
device and if problem
persists replace
communication
module
Bit - 0
118
Sensing Sec NC
Failure
This is a roll-up
status bit that is set
when any of the
pressure and
temperature sensing
modules non critical
status is set such as
• Unreliable
Communication
• Sensor Input Out
Of Range
• CJ Out Of Limit
• Excess Calibration
Correction
• CJ CT Delta
Warning
Refer detailed status
bits corresponding to
pressure module in
register 121 and
temperature module
in register 120.
Bit -1
CJ Out Of Limit
The Internal Cold
Junction
Temperature
(CJ) measured in the
Temperature
module is outside of
the specified range.
Range limits are -40
to 85 degrees C.
Verify that the
environmental temp is
within spec. If it is,
Temperature module
may have been
damaged. Replace
the Temperature
module
Bit - 2
No Factory
Calibration
This is roll up status
bit set for the
following:
• Temperature
sensor module
factory calibration
missing
• Pressure sensor
module factory
calibration missing
Factory Calibration
for either
Temperature
module or Pressure
module is missing.
Accuracy is
compromised if not
calibrated.
Refer status bits
corresponding to
factory calibration
status of pressure in
register 121 and
temperature module
in register 120.
Accordinly return the
module for factory
calibration.
Bit - 3