Previous Year’s Values; Monthly Values; Error Messages - Siemens UH50 Series Manual

Previous year's values

Monthly values

Note

Error messages

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Siemens
Building Technologies
The processor unit stores the meter readings of energy, volume, the tariff register,
missing time, and flow rate measuring time as well as the current maximum of flow
rate, power, temperature differential, flow temperature, and return temperature with
their date stamps on a yearly set day.
The processor unit stores the meter readings of energy, volume, the tariff register,
missing time, and flow rate measuring time as well as the monthly maxima of flow
rate, power, temperature differential, flow temperature and return temperature with
their date stamp for up to 60 months on the set day of each month.
The standard time used is the Central European Time (CET). If daylight-saving
time is activated, storage will be performed accordingly.
Previous year's values and monthly values can also be read out via the optical and
the 20-mA interface.
The meter performs constantly self-diagnostics and can display various error
messages.
Error code Error
FL nEG Wrong direction of flow
If necessary, alternating with:
DIFF nEG Negative temperature differential Check place of installation of
If necessary, alternating with:
F0 Flow cannot be measured
F1 Interruption in the flow tempera-
ture sensor
F2 Interruption in the return tem-
perature sensor
F3 Electronics for temperature as-
sessment defective
F4 Battery exhausted; problem in
connection with power supply
F5 Short-circuit in the flow tempera-
ture sensor
F6 Short-circuit in the return tem-
perature sensor
Ultrasonic heat and cooling energy meters UH50..
Current tariff,
at 2-second intervals with threshold value 1
Measuring interval for flow rate
Measuring interval for temperature
Module 1: M-bus module
M-bus primary address 1
M-bus secondary address 8-digit
Module 2: Pulse module; channel 1 = energy, channel 2
= volume, at 2-second intervals
Valency for energy pulses *)
Valency for volume pulses *)
Pulse duration in ms *)
*) For "fast pulses"
Notes on service
Check flow or installation direc-
tion; correct if necessary
sensors; replace if required
Air in the measuring sec-
tion/pipe; vent the pipe (as sup-
plied)
Check sensor; replace if re-
quired
Check sensor; replace if re-
quired
Replace meter
Replace battery; check connec-
tion
Check sensor; replace if re-
quired
Check sensor; replace if re-
quired
CE2N5324en
2013-01-14