Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.700
Page 17
4 Electrical connection
The flow sensor
SS 20.700
has two connectors:
Main connector:
- Connection of voltage supply
- Output of measuring signals
Module connector:
For connection of an optional
extension module.
Figure 4-1
Main connector
The sensor is operated via this connector (pin assignment see Table 4).
Number of connection pins:
8 (plus shield connection at the metallic enclosure)
Type:
M12, A-coded, male
Fixation of connecting cable:
M12 thread (spigot nut at connecting cable)
Type of protection:
IP67 (with screwed cable)
Model:
Binder, series 763
Pin numbering:
View on connector of sensor
Figure 4-2
Pin Name
Function
Wire color
1
Pulse 1
Output signal: Flow / volume (digital: PNP)
White
2
U
B
Operating voltage: +24 V
DC
± 20 %
Brown
3
Analog T
M
Output signal: Temperature of medium (Auto-U/I)
Green
4
Analog w
N
Output signal: Flow velocity (Auto-U/I)
Yellow
5
AGND
Reference potential for analog outputs
Gray
6
Pulse 2
Output signal: Flow / volume (digital: relay
13
)
Pink
7
GND
Operating voltage: Ground
Blue
8
Pulse 2
Output signal: Flow / volume (digital: relay
13
)
Red
Shield
14
Electromechanical shielding
Meshwork
Table 4
The specified wire colors are valid when one of the
SCHMIDT
®
connecting
cables is used (see subchapter
13
Galvanically decoupled
14
For cable with mat. no. 524942, the shield is not connected to the cable socket.
