Siemens UH50 FLOW SENSOR, Инструкции по настройке, Страница: 4 / 15

Ultraheat / Ultracold UH50 Configuration Instructions UH 106-101k Page 4 / 15
Installation
Based on the dimension drawings, choose a
mounting location with sufficient clearance. Mount
the volume measuring unit between two shut-off
valves in accordance with the arrow on the volume
measuring unit for the direction of flow.
No inlet or outlet sections are necessary. However, if
the meter is installed in the shared return of two
systems, the mounting location must be a sufficient
distance from the T element that forms the junction
(
min. 10
× × × ×
DN ) to allow the different water
temperatures to mix well.
The sensor can be mounted in ball valves or in
pockets. The sensors must be inserted at least up to
the center of the pipe cross-section.
Cavitation must be avoided over the entire
measuring range by overpressure, i.e. at least 1 bar
at q
p
and approx. 3 bar at q
s
(at 80°C).
If the water temperature is below 10°C or above
90°C , a split mounting is necessary. In this case the
electronic unit is to be mounted separately from the
volume measuring unit.
A meter with a
removable control cable may be
separated during the installation. When installation is
done be sure that only paired parts (volume part,
calculator) are connected together.
Ball valve
Example of mounting with a ball valve
(recommended up to DN25)
Welded sleeve
with pocket
Example of mounting with pockets
(recommended above DN25)
Mounting as a cold meter
When mounting a
cold meter
or
combined
heat/cold meter , make sure the black cover on the
measuring tube is oriented to the side or downward
(because of water condensation). The immersion
sleeves should also mounted to the side or
downwards.
The electronic unit must be separated from the
flowrate measuring tube and, for example, mounted
on the wall (split mounting). Make sure that
condensed water cannot run along the connected
pipes into the electronic unit (building a loop
downwards).
cover of flow sensors
Allowed position of the cold meter
Electronic unit
Electronic unit: top view side view
Adapter plate cross-section
Operating elements
The service button and calibration contact are not
accessible until the housing cover is removed.
The calibration contact is additionally protected by a
security seal.
The optical interface permits data communication via
a computer with the necessary service software.