24
Symbol Status Action
External voltage (only by M-Bus) -
Flow
existent
-
Attention!
Check system /device
for errors
■
Symbol ashing: Data transmission
■
Symbol constantly displayer: optical
interface active
-
-
Emergency operation Exchange device
Complete symbol permanently displayed:
The meter is connected to LoRa server (join accept)
Wave symbol ashes, vertical bar permanently displayed:
Connection attempt with LoRa server (join request)
Only vertical bar permanently displayed:
Connection attempt with LoRa server failed (join failed)
Note: When the optical interface is activated, the wave symbol shows
its status (see above)
Error codes show faults detected by zelsius® C5-IUF. If more than one error appears, the sum
of the error codes is displayed: for example, error 1005 = error 1000 and error 5.
Code Error type resp. possible reason Action
1 Temperature below of measuring range Check sensors
2 Temperature above of measuring range Check sensors
3 Short circuit return sensor Check sensors
4 Interruption return sensor Check sensors
5 Short circuit supply sensor Check sensors
6 Interruption supply sensor Check sensors
7 Battery voltage Exchange device
8 Hardware error Exchange device
9 Hardware error Exchange device
10 Error in the measuring system Exchange device (**)
20 No water in the measuring tube Check operating pressure (**)
30 Reverse water ow detected Check installation position (**)
40 Air inside the medium Vent system (**)
50 Measured value outside overload range Check dimensioning (**)
100 Hardware error Exchange device
800 Wireless interface Exchange device
1000 Status end of the battery
Exchange device respectively
battery(*)
2000 Status initial verication expired Exchange device
(*) The validity period for the calibration depends on the country, please observe
the relevant national regulations.
(**) only by zelsius® C5-IUF
Status display / Error codes
The symbols in the table below show the meter’s operational status. The status
messages only appear in the main display (energy). The temporary display of the
warning triangle can be caused by special operating states and does not always
mean that the device is malfunctioning. However, should the symbol be displayed
over a longer period of time, you should contact the service company!
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