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