Specifications

PR 5220 Operating Manual Installing the Instrument
Sartorius 21
3.2.4 3 Optocoupler Inputs
The optocoupler inputs have one common potential (GND) for the input group that is separated from the
common potential of the output group.
Connection method:
4-pin plug-in terminal block
Cable:
Shielded, max. 50 m
Number of outputs:
3
Input signal:
External supply required
10 ... 28 V DC for 'high' level
0 ... 5 V DC for 'low' level
Input voltage:
Max. 28 V DC
Input current:
< 11 mA @ 24 V DC
< 5 mA @ 12 V DC
Electrical isolation:
Yes; a common minus potential for the group
of 3 inputs
Example: contact input connection
When a voltage >= 10 VDC is applied to the terminals (in the
example :1-GND), input 1 is active (true).