Endress+Hauser Liquiline CM444 - Digital Inputs, Passive; Current Input, Passive

Technical data Liquiline CM442/CM444/CM448
156 Endress+Hauser
15.2 Digital inputs, passive
15.2.1 Electrical specification
• drawing power (passive)
• galvanically isolated
15.2.2 Span
15.2.3 Nominal input current
Max. 8 mA
15.2.4 PFM function
Minimum pulse width: 500 μs (1 kHz)
15.2.5 Testing voltage
500 V
15.2.6 Cable specification
Max. 2.5 mm
2
(14 AWG)
15.3 Current input, passive
15.3.1 Span
> 0 to 20 mA
15.3.2 Signal characteristic
Linear
15.3.3 Internal resistance
Non-linear
15.3.4 Testing voltage
500 V
High: 11 to 30 V DC
Low: 0 to 5 V DC