KROHNE OPTIWAVE 7300 C Handbook page 63

63
List of possible errors
Two types of errors are logged:
1. Fatal (F): the measured value may not be correct.
2. Warning (W): the measured value is correct but may no longer be if the problem persists.
This is a complete list of error messages and corrective action you can take
Error Message
Current Output
Upper current output
saturated Analog output 1
Upper current output
saturated Analog output 1
External Influences
Temperature out of range
for NAND Flash
Self Test Manager
Self Test Failed
Measuring Status
Measurement Old
Overfill Indication
Measurement Lost in
Tank Bottom
Electronics Failures
Microwave Check
Peripheral Failure
Type of Error Description
W The output has reached
maximum output value (20mA or
20.5mA depending on value
configured in "output range")
because the measured value is
now out of range.
W The output has reached minimum
output value (4 mA or 3.8 mA
depending on value configured in
"output range") because the
measured value is now out of
range.
F The ambient temperature is
outside the specified range. This
may result in loss or corruption of
data.
F Device self-test failed.
Contact the supplier.
W Temporary error message. Time
limit to get valid measurement
elapsed. Present displayed
measurement is no longer valid.
If the problem persists, "Signal
down" will be displayed.
W Product Level is above the block
distance limit. Danger of product
overflowing and/or immersing the
device.
W Last valid measurement was
taken near to the tank bottom but
the signal has now been lost.
Common in tanks with dished
bottom (DIN28011 or similar).
The tank bottom measurement
will be displayed.
F Microwave board check failed.
F Hardware peripheral devices of
DSP board failed.
OPTIWAVE 7300 C
Handbook OPTIWAVE 7300 C
Corrective action
Return the product level to
the configured range.
Return the product level to
the configured range.
Switch off the device until
the ambient temperature is
back in the specified
range, then switch it back
on. If problem persists,
contact the supplier.
Lower the product level
below the blocking
distance.
The tank may be empty.
The measurement status
will return to normal once
the tank is filled.
If the problem persists
contact the supplier.
If the problem persists
contact supplier.