User Manual

For a period of 15 months on the monthly due date, the meter stores the values
of …
- energy (meter reading),
- volume (meter reading), and
- missing hours (metering hours).
When the meter displays the monthly due date, the respective monthly values can
be made to appear when pressing the button for 3 seconds. The monthly values
can also be read via the optical interface.
Error code
Error
Remedy (service personnel)
FL nEG
Wrong direction of flow
Check flow or installation
direction; correct if necessary
Possibly alternating with:
DIFF nEG
Negative temperature differential
Check place of installation of
sensors; correct if necessary
Possibly alternating with:
F0
No metering of flow
Air in the measuring section/
pipe, vent pipe (delivery
condition)
F1
Interruption in the flow sensor
Meter exchange by specialist
F2
Interruption in the return sensor
Meter exchange by specialist
F3
Electronics for temperature
evaluation defective
Meter exchange by specialist
F4
Battery exhausted
Meter exchange by specialist
F5
Short-circuit in the flow sensor
Meter exchange by specialist
F6
Short-circuit in the return sensor
Meter exchange by specialist
F7
Memory internally
malfunctioning
Meter exchange by specialist
F8
Error F1, F2, F3, F5 or F6 pend-
ing for more than 8 hours,
detection of tampering attempts.
No further metering.
Measure to be taken depend on
error code. Error message F8
must be reset by service
personnel
F9
Error in electronics
Meter exchange by specialist
The processor stores the meter readings of energy, volume and missing time with
their date stamps on a yearly due day.
The due day for previous year values can be parameterized.
The processor stores the meter readings of energy, volume and missing time with
their date stamps for up to 15 months on the due day of each month.
The 2WR6.. comes programmed as follows:
• Due day [TT.MM]: 01.01
123 Fh
Missing hours previous year
--.--.-- C
Code input for parameterization
31.07.12
Storage day month 1…15
Press button >3 s
1234567 kWh
Energy previous month on due date
1234567 m
3
Volume previous month on due date
8 Fh
Missing hours previous month on due date
Error messages
Previous year values
Monthly values
Standard parameters
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Siemens Ultrasonic heat and cooling energy meters 2WR6.. CE2N5378en
Building Technologies 2014-04-04