Yokogawa 414 Batch Controller - Manual (Page 26)

24 Operation
Connection of Output Pulse and Flow Alarm are as follows:
Driving an External Relay or Impulse Counter
Driving a Logic Input such as a PLC or Electronic Counter
Relay or
Impulse Counter
5.6 ohms
33V
Zener
DC Supply
12
DC Supply
Out (8-24V)
5.6 ohms
33V
Zener
External Load
Resistor 10K
Logic Input
11
2