KROHNE OPTIWAVE 7300C EN - Manual (Page 80)

6
OPERATION
80
OPTIWAVE 7300 C
www.krohne.com 03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en
Measuring status
Measurement is old W This is a temporary error
message. If the device cannot
get a measurement in this
time limit, the displayed
measurement is no longer
correct. The voltage is
possibly too low. If the device
continues to show the
message "spectrum quality is
bad", then this message is
also shown.
Check the voltage at the
device terminals. Refer also
to the error message
"Spectrum quality is bad".
Level has reached the
blocking distance (tank
overfill)
W The level is in the blocking
distance. There is a risk that
the product will overflow
and/or cover the device.
Remove some of the product
until the level is below the
blocking distance.
Measurement is lost in the
tank bottom
W The tank is possibly empty.
The device will display the
tank bottom measurement.
If you fill the tank, the device
will measure again.
The device got the last valid
measurement near to the
tank bottom, but it can no
longer find the signal. It is
possible that the device
cannot find the bottom of the
tank if it is installed in a tank
with a dish-shaped
(DIN 28011 or similar) or
conical bottom. The form of
the tank bottom causes a
delayed radar reflection and
the device will display the
error message
"Measurement is lost in the
tank bottom". The device will
display the tank bottom
measurement.
Follow the instructions on
page 74.
Electronics failures
Microwave check failed E A microwave board check
failed.
If the problem continues,
contact the supplier or
replace the electronics block.
For more data, refer to
Replacement of the complete
electronic module on page 86.
Peripheral Failure E Hardware peripheral devices
on the DSP board failed.
If the problem continues,
contact the supplier or
replace the electronics block.
For more data, refer to
Replacement of the complete
electronic module on page 86.
Error Message Error
code
Description Corrective action