KROHNE OPTIWAVE-M 7400 C Short Manual page 70

OPERATION
4
Status Error message
type
S Process
CO Saturated Low
CO Saturated High
M Sensor
Weak Signal
Bad Measurement Quality (Old
Measurement)
Empty Spectrum invalid
70
Description
The measurement value is less than
2
the minimum value of the current
output range. The current output
cannot go lower than its minimum
value and thus does not agree with
the correct measurement value.
The measurement value is more than
2
the maximum value of the current
output range. The current output
cannot go higher than its maximum
value and thus does not agree with
the correct measurement value.
The signal amplitude is too small.
The measurement value is incorrect
and does not change for more than
10 s.
The empty spectrum recording does
not agree with the process
conditions at this time (e.g. the tank
height was changed).
www.krohne.com
OPTIWAVE-M 7400 C
Corrective action
Do a check of the process conditions
and the minimum current output
value.
Do a check of the process conditions
and the maximum current output
value.
Make sure that the device installation
agrees with the data in the handbook.
If the message is shown again, it is
possible that a different antenna
must be installed. tell the supplier.
Make sure that the device installation
agrees with the data in the handbook.
If the message is shown again, tell the
supplier.
Do a new empty spectrum recording.
02/2019 - MA OPTIWAVE-M 7400 C R01 en