Installation and electrical connection
TU 7052
Technical changes reserved
- 5 -
4.1 Rail mounting
The TU 7052 has a plastic casing for rail mounting in accordance with DIN EN 60715. It can be
mounted before or after electrical connection.
Place the TU 7052 on the mounting rail from above and ensure that the plastic casing locks in-
to position.
4.2 Electrical connection
WARNING! Danger of death due to electrical hazard!
The electrical connection of TU 70xx should only be carried out by a fully qualified electrician.
CAUTION! Material damage!
The TU 7052 may be damaged if the connection cables are swapped.
Only connect TU 7052 to the specified connections.
4.2.1 Flow or volumetric sensor connection
All SIKA flow or volumetric sensors can be connected to TU 7052.
CAUTION! Material damage!
Malfunctioning and damage may occur if several sensors are connected.
Only connect one flow or volumetric sensor.
4.2.1.1 NPN / PNP sensors
For a sensor current consumption of ≤ 50 mA (> 50 mA), the supply voltage (+U) is connected to
terminal 41 (23). The sensor signal (
) is connected to terminal 42 and the ground (GND) to con-
nection cable 21.
Integrated pull-up (pull-down) resistor:
The following circuit with an external resistor is not required if a sensor with integrated resis-
tor is connected.
NPN sensor:
The supplied resistor should be connected between terminal 42 and termi-
nal 41 (23) for NPN sensors.
PNP sensor:
The supplied resistor should be connected between terminal 42 and termi-
nal 21 for PNP sensors.
41(23)
42
21
41(23)
42
21
