Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.500
Page 21
4 Electrical connection
During electrical installation ensure that no voltage is applied and
inadvertent activation is not possible.
The sensor is equipped with a plug-in connector which is firmly integrated
in its enclosure with following features:
Number of connection pins:
5
Type:
male
Fastening of connecting cable:
M12 thread (spigot nut at the cable), A-coded
Type of protection:
IP67 (with screwed cable)
Model:
Binder, series 713
Pin numbering:
View on connector of sensor
Figure 4-1
Pin assignment of the plug-in connector is given in the following Table 4.
Pin
Designation
Function
Lead colour
1
Power
Operating voltage DC: +U
B
Operating voltage AC: U~
brown
2
Analog T
M
Output signal: Temperature of medium
white
3
GND
Operating voltage DC: GND (-U
B
)
Operating voltage AC: U~
blue
4
Analog w
N
Output signal: Standard flow velocity
black
5
AGND
Ground connection of analog outputs
gray
Table 4
The specified lead colours are valid if one of the
SCHMIDT
®
connecting
cables is used (see subchapter
"Accessories"
).
The appropriate protection class III (SELV) respective PELV (ac-
cording EN 50178) has to be considered.
!
1
2
4
3
5
!
