Diagnostic Error Messages - Mercoid Series MPC Installation And Operating Manual

DIAGNOSTIC ERROR MESSAGES

Display Meaning
UFL Underflow or
or Overflow: Process
0FL value has
exceeded input
range ends.
CHEC CAL Check calibration
appears as an
alternating
message if the
instrument
calibration nears
tolerance edges.
Check calibration
appears as a
flashing message if
the instrument
calibration exceeds
specification.
ArEA This message
(Alternates appears if the
with PV) ambient
temperature of the
control approaches
the ends of
ArEA tolerance. This
message appears
if the ambient
temperature of the
control is out of
range or RJC
sensor is broken.
SP Outputs Action Required
Set point Input signals may normally
outputs active go above or below range
Alarms active ends. If not, check input and
correct.
Set point Remove the instrument for
outputs active service and / or recalibration.
Alarms active To reset use the INDEX &
ENTER keys.
Remove the instrument for
Set point
outputs service and / or recalibration.
inactive To reset use the INDEX &
Alarms active ENTER keys.
Set point Correct the ambient
outputs active temperature conditions.
Alarm active Ventilate the area of the
cabinet or check for clogged
filters. If RJC broken, return
to factory for service.
Set point Correct the ambient
outputs active temperature conditions.
Alarms active Ventilate the area of the
cabinet or check for clogged
filters. If RJC broken, return
to factory for service.
25