7ML19985GE04
SITRANS LC500 – OPERATING INSTRUCTIONS
Page 53
Tr
oub
leshoot
in
g
Error Messages and Error Codes
Error Messages (push-button operation)
Error Codes (HART)
Error
Message
Description
Cause
Flt
a
a.
Alternates with the primary variable (PV).
Fault/failure has been detected
• Device is faulty
• Possible short circuit in the probe or the
device wiring
• Possible fault in the device, or lack of
sufficient energy at the device
terminals
ooL
a
Output out-of-limits
The product level has risen above the
Upper Sensor LImit, or fallen below the
Lower Sensor Limit
Error
Code
Description
Cause
32
program memory checksum error Device is faulty
16
signal error: the measurement
circuitry stopped functioning
Possible short circuit in the probe or the device
wiring
8
DAC drive failure: the current as
set by the DAC does not match
the value measured by the ADC
Possible fault in the device, or lack of sufficient
energy at the device terminals
0
PV value is outside the limits set
(USL and LSL)
Usually indicates a fault in the connection
between the transmitter module and the probe
(the coaxial connector is off)