User Manual

8
Smart Infrastructure
CE2N5324en
2019-06-27
Previous year’s values
The electronics unit stores the meter readings for energy, volume, tariff register, missing
time, and flow measuring time as well as the current maximum values of flow rate, power,
temperature differential, temperature heat and cold side with their date stamps on a yearly
set day.
Monthly values
The processor unit stores the meter readings for energy, volume, the tariff register, missing
time, and flow rate measuring time as well as the monthly maxima for flow rate, power,
temperature differential, temperature heat and cold side with their date stamp for up to 60
months on the set day of each month.
NOTICE
Central European Time (CET) is the default time. Storage is performed at the appropriate
times if daylight saving time is activated.
Previous year’s values and monthly values can also be read out via the optical interface.
Error messages
The meter continuously performs self-diagnostics, allowing it to detect a number of mounting
or device errors and to display them.
Error code Error Notes on service
FL nEG Wrong direction of flow
Check flow or installation
direction; correct if necessary
If necessary, alternating with:
DIFF nEG Negative temperature
differential
Check place of installation of
sensors; replace as required
If necessary, alternating with:
F0 Flow cannot be measured Air in the measuring
section/pipe; vent the pipe
(as supplied)
F1 Interruption in temperature
sensor heat side
Check sensor;
replace as required
F2
Interruption in temperature
sensor cold side
Check sensor;
replace as required
F3 Electronics for temperature
assessment defective
Replace meter
F4 Battery exhausted; problem
in connection with power
supply
Replace battery;
check connection
F5 Short circuit in temperature
sensor heat side
Check sensor; replace as
required
F6 Short circuit in temperature
sensor cold side
Check sensor;
replace as required