
OPERATION
6
105
OPTIFLEX 1300 C
www.krohne.com
01/2008 • 4000172301 - HB OPTIFLEX 1300 R02 en
Error Message
Error
code
Description
Corrective action
Measurement status
Level measurement lost
E
1
The instrument can no longer
find the product surface. The
measurement is held at the
last measured value in the
blocking distance.
Check the tank contents
using another method of
measurement. If the tank is
empty (the level is below the
end of the probe), then fill the
tank until product level is in
the measurement range. If
the tank is full (the level is in
the blocking distance), then
remove the contents from the
tank until the level is back in
the measuring range. If the
product was lost and the tank
is neither full nor empty, wait
for the instrument to find the
level again.
When the level return signal
and the probe end return
signal are lost. This is
applicable to automatic
(direct/TBF) measurement
mode only.
If the instrument is in direct
mode, adjust the level
threshold (menu item C.1.16).
If the instrument is in TBF
mode, adjust the probe end
threshold (menu item C.1.18).
For more data, refer to
Thresholds and parasite
signals
on page 94.
Level measurement low
W
The product is in the empty
area. The measurement is
held at the the sensor length.
Fill the tank to at least the
bottom of the measuring
range to continue
measurement.
The product is outside the
measuring range. The
measurement is incorrect or
held at the last measured
value by the instrument.
Measurement old
E
This error occurs if the
power supply is not sufficient
to operate the instrument
correctly for 1 minute. After 1
minute the error message
"Measurement old" is
recorded. You can change this
time in supervisor mode. Go
to advanced setup > output 1
advanced setup > output 1
advanced setup > output 1
advanced setup > output 1
> error handling delay
> error handling delay
> error handling delay
> error handling delay (5...300
seconds).
Make sure that the power
supply for terminal 1has a
min./max. value of
14...30 VDC (10...30 VDC for
terminal 2) when current
output is at 22 mA.
HB_OPTIFLEX1300_EN_D4_080428.book Page 105 Tuesday, April 29, 2008 2:47 PM