Endress+Hauser RTA421 Mode D'emploi page 43

System messages process transmitter
Green Red LC display
LED LED
On On Display
indicates
„
E101
On On Display
indicates
„
E102
On Flash Display of
preset set
points, no
bargraph
visible
On Flash Display of
preset set
points,
bargraph
visible
On Off Display
indicates
„
SA VE
On Off The 7
segment
display
shows a
„Text".e.g.
RA NG
Off Off Display off
Off Off Display off
Cause
The EEPROM for storing the
operating parameters is defective.
"
Checksum of operating
parameters is invalid or the
software version in the EPROM
" does not correspond with the
operating parameters in the
EEPROM. Possible cause is a
power failure during parameter
save sequence or in a software
update.
Cable open circuit monitor - The
connection between a unit and
the sensor has been broken.
Over range/under range - Either a
too high or too low signal is
connected to the analogue input.
The unit is saving operating
parameters into the EEPROM
after a change.
"
The unit is in programming mode
of either the input signal or the
alarm set points.
No power supply available.
Unit defective
Contactor
Solution
Please change the unit
A Preset is
automatically initiated
after operating the "E"
push button. This
means that the
operating parameters
are set to default.
Check the connection to
the sensor,
(see chap. 3.3)
Check the input signal.
The unit will once again
display the set points
once data storage has
been completed.
End programming mode
Please check the unit
power source.
Please change the unit.
41