Siemens SITRANS FUE950, Руководство по эксплуатации, Страница: 56 / 72

Troubleshooting/FAQs
8.1 Error information and codes
Error pending table
Error code Display Error description/cause Device behaviour Remedy
C - 1 displayed
permanently
Basic parameter in Flash or
RAM destroyed.
(A self test is done each
minute)
Disables:
Energy, power, flow and
volume calculation
Optional LCD displaying
Clock and date actions
Replace device
Stores:
C-1 in event memory
Check temperature
sensors, cables and
connection. If sensor are
broken change I to a new
sensor pair.
Shows:
"Err" for temperatures and
power in menu loop 1
E - 1 displayed Error in measuring the
temperature (typically
checked every 4-8 seconds)
Disables:
energy and power calculation
Temperature outside range (-
9.9°C...+190°C)
PT-sensor short-circuited
PT-sensor not or wrong
connected
PT-sensor broken
Check media temperature
(must be within specified
temperature range)
E - 3 Wiring of sensors for hot and
cold temperature
measurements are switched
(ΔT < -5 K).
Disables:
energy calculation
Ensure that sensor for hot
(T
H
) and cold temperature
(T
C
) are placed correctly.
Resets:
E-3 automatically if ΔT ≥ -5
K.
Ensure temperature
sensors are connected to
the right terminals (T
H
: 5-6,
T
C
: 7-8).
Ensure bridges are
present/mounted
(necessary for 2-wire PT-
sensors).
E - 5 displayed "Logical data capacitor
exhausted", communication
temporarily impossible
(checked every 4 seconds)
Disables:
opto. communication
Improve data
communication (e.g. using
IrDA-eye).
Change data request
settings, i.e. reduce data
request speed.
Check the mains power
supply.
E - 8 Display
switched off
Mains power supply 230 V
AC or 24 V AC failed (only for
mains-powered modules with
internal backup-battery).
Powered via the back-up
battery (checked every
minute)
Output voltage of module
to FUE900 plug must be
3.0 … 3.6 V DC
displayed
permanently Disables:
energy, power, flow and
volume calculation
temperature measurement
Replace battery. E - 9 Display
switched off
Battery empty (checked
every day).
Monitors:
remaining usage time
displayed
permanently
Shows:
error if remaining time < 400
days
Disables:
no functions
SITRANS FUE950
54
Operating Instructions, 01/2010, SFIDK.PS.022.F4.02