QUNDIS
01.09.2019 12
Previous month's values “LOOP 2”
Previous month's values
Log date
Max. power in 2 s
cycles with date
stamp
Energy quantity on set
day
Cooling registers on set
day (optional)
Max. temperature hot
side in 2 s cycles with
date stamp
Volume on set day
Max. temperature cold
side in 2 s cycles with
date stamp
Missing time on set day
Max. flow on set day in 2
s cycles with date stamp
General/Communication "LOOP 3"
General/Communication
Device number,
7-digit
Yearly set day
Optional interface
Monthly set day
Primary address (only
for M-Bus)
Firmware version
Secondary address
7-digit - for M-Bus
CRC-Code
Other “LOOP 4”
Other
Date
Code entry for test /
para operation
Time
4.1
Monthly values
The meter stores the following values for 24 months on the
monthly set day
•
Missing time
•
Volume
•
Energy
and the maxima with date stamp for
•
Flow
•
Power
•
Temperature hot side
•
Temperature cold side
4.2
Parameterisation
When the LCD displays the code entry, you can call up the
parameterisation operation by inputting the code. You can set
date and M-Bus primary address in the parameterisation oper-
ation for example. For more detail see separate parameterisa-
tion instruction.
5.
Getting Started
For activation proceed as follows:
•
Open the slide valves slowly.
•
Check the heating system for leak-tightness and bleed air
out carefully.
•
Press the button on the meter briefly.
The message "F0" disappears after 10 sec.
•
Check the measured values for flow and temperatures for
plausibility.
•
Vent the heating system until the flow display is stable.
•
Fit the user locks to the fittings and the temperature sen-
sors. The scope of supply includes two self lock seals for
sealing a sensor and the connecting fitting.
•
Read the meter status for energy, volume, operation and
missing time and note the values.
Error messages for incorrect installation:
Error "incorrect flow direction (negative)"
Check that the flow direction arrows on the volume measurement unit
match the flow direction of the system. If the directions do not match,
turn the volume measurement unit through 180°.
Error "negative temperature difference"
Check whether the sensors are installed correctly. If the sensors are
not installed correctly, change the installation position of the sensors.
Heating meter:
Temperature sensor in the flow-pipe with higher temperatures; temper-
ature sensor in return-pipe with lower temperature
Cooling meter:
Temperature sensor in the flow-pipe with lower temperatures; tempera-
ture sensor in return-pipe with higher temperature
6.
Functional Details
If the respective operation thresholds are exceeded and flow
and temperature difference are positive, the meter summates
the energy and the volume.
If the operate margin is gone below a "u" is displayed at a leading
point for the flow, power and temperature display.
For a positive flow the activity display
appears in the user
loop in the LCD.
All segments of the display are switched on for control purpos-
es during the segment test. The flow, power and temperature
difference are recorded with the appro/- signs.
The operating hours are counted from the first connection of
the power supply. The meter saves "operating time with flow"
as soon as a positive flow is recognised. Missing hours are
summated if there is a fault and the meter is thus unable to
take a measurement.
Stored maximum values are marked with an "
" in the lower
right hand area of the LCD.
