KROHNE OPTIWAVE-M 7400 C Short Manual page 67

OPTIWAVE-M 7400 C
Description of errors and corrective actions
Status Error message
type
F Sensor
Corrupt Sensor Parameter
No Signal
Microwave Tuning Voltage Error
Sensor Comm. Error
No measurement value
F Electronics
Fatal Converter Error (DM)
Fatal Converter Error (CO)
Fatal Converter Error (Generic)
CO Safety Reaction
Internal Comm. Error
Power Supply Error
Sensor/Conv. FW Mismatch
Max. Number of Restarts
Inconsistent Parameters
Sensor Comm. Error
02/2019 - MA OPTIWAVE-M 7400 C R01 en
Description
The sensor memory is bad.
There is no signal from the antenna
or the antenna signal is too weak for
a long time.
A microwave error occurred.
Internal bus communication error or
hardware failure.
The converter receives no
measurement data for a long time.
An electronics or hardware failure
1
occurred.
An electronics or hardware failure
2
occurred.
An electronics or hardware failure
occurred.
Current Output Safety Reaction. This
3
error message is shown if the current
output is less than 3.6 mA or more
than 21 mA.
Internal bus communication error.
Internal voltage is too low to energize
the sensor.
Internal voltage is too high.
The sensor firmware version does not
agree with the converter firmware
version. This can be caused by a bad
firmware update.
The device could not start the
measuring mode after a given
number of times that the device was
de-energized and then energized
again.
Internal bus communication error.
Internal bus communication error or
hardware failure.
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OPERATION
Corrective action
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
Do a check of the device installation.
For more data about installation, refer
to the handbook. If the message is
shown again, tell the supplier.
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
Do a check of the device installation.
For more data about installation, refer
to the handbook. If the message is
shown again, tell the supplier.
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
Do a check for other error
messages.
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
Check the electrical connections to
the power supply connection or
replace the converter.
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
Do a check of the power supply.
De-energize and then energize the
device again.
If the message is shown again, tell
the supplier.
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