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3.1
Installation of cooling meters and combined
heat/cooling meters
Observe the following installation instructions to avoid conden-
sation water.
•
Mount the cooling meter so that the black cover on the
measuring section points sidewards or downwards.
•
Mount the electronic unit separated from the volume meas-
uring unit e. g. on the wall.
•
Form a loop downwards with the connected cables.
•
Mount the protection pocket so that the temperature sensor
stands vertically downwards or horizontally.
•
Mount the temperature sensor horizontal or vertical in the
pipe from below.
Transducer cover
Fig. 6: Recommended mounting position for cooling measurement
3.2
Electronic unit
The ambient temperature of the electronic unit must not ex-
ceed 55 °C. Avoid direct sunlight.
Mount the electronic unit separated from the volume meas-
urement unit e. g. on the wall if the water temperatures are
below 10 °C and above 90 °C.
Aligning electronic unit
Proceed as follows to align the electronic unit:
•
Turn the electronic unit to the left or right through 90° or
through 180° as required.
Note: When turning through 45° the electronic unit is
not connected tightly to the volume measurement unit.
Wall fitting (split fitting)
Proceed as follows for the wall fitting:
•
Turn the electronic unit through 45°.
•
Pull the electronic unit away from the volume measurement
unit.
•
Unscrew the adapter plate from the volume measuring unit.
•
Fix the adapter plate on the wall.
Fig. 7: Top view and cross section of the adapter plate
•
Place the electronic unit on the wall adapter at an angle of
45° and turn it into position.
3.3
Power supply
The meter is equipped with a long life battery for 6 or 11 years
of operation. You can find the operating time on the dial plate.
Warning: Do not open the batteries. Do not bring
battery into contact with water or expose to tempera-
tures above 80 °C. Dispose of used batteries at
suitable collection points.
Smart Infrastructure
3.4
Interfaces and Communication
Note: Frequently switching off the M-bus voltage may
result in a reduction of the battery life.
The meter is equipped with an optical interface in accordance
with EN 62056-21 as standard.
If the meter is equipped with the option "M-Bus", it is supplied
with a 2-wire cable.
If the meter is equipped with the option "pulse", it is supplied
with a 4-wire cable.
The connection cable can be extended by fitting a junction box.
3.5
Temperature sensor
Note: Wires must not be separated, shortened or
extended.
4.
Operating
Note: Both display range and data displayed can differ
from this description depending on the appliance
parameterization. Certain button functions can also be
blocked.
The meter consists of a 7-digit LCD displaying various values.
Fig. 8: LCD
Number
Description
1
Identification previous year value
2
Previous year value
3
Maxima
4
Previous month value
5
Identification previous month value
6
Activity display at flow
7
Calibrated value
Switching the display
Proceed as follows to switch between the display values:
•
Press the button briefly (for less than 2 sec.) to show the
next line of the current loop.
After the last line is displayed, the first line comes up again.
•
Hold down the button (longer than 3 sec.) in order to dis-
play the next loop.
After the last loop is displayed, the first loop comes up again.
If you do not operate the meter for 30 sec. in the user loop
"LOOP 0", the meter changes to the standard display. If you do
not operate the meter for 30 min. in the loops "LOOP 1 ... 4",
the meter changes to the standard display.
User loop "LOOP 0"
A6V11285667_----_d
User loop
Energy quantity
Cooling registers (optional)
Volume
Segment test
In case of error: mes-
sage with error code
2021-07-28
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