Endress+Hauser CM442R - Input

Liquiline CM442R/CM444R/CM448R
Endress+Hauser 19
Input
Measured variables
→ Documentation of the connected sensor
Measuring ranges
→ Documentation of the connected sensor
Types of input
• Digital sensor inputs for sensors with Memosens protocol
• Analog current inputs (optional)
• Digital inputs (optional)
Input signal
Depending on version
• Max. 8 x binary sensor signal
• 2 x 0/4 to 20 mA (optional), passive, potentially isolated from one another and from the sensor
inputs
• 0 to 30 V
Cable specification
Cable type
Memosens data cable CYK10 or sensor fixed cable, each with cable end sleeves or M12 round-pin
connector (optional)
Cable length
Max. 100 m (330 ft)
Digital inputs, passive
Electrical specification
• drawing power (passive)
• Galvanically isolated
Span
High:
11 to 30 V DC
Low: 0 to 5 V DC
Nominal input current
Max. 8 mA
PFM function
Minimum pulse width: 500 µs (1 kHz)
Test voltage
500 V
Cable specification
Max. 2.5 mm
2
(14 AWG)
Current input, passive
Span
> 0 to 20 mA
Signal characteristic
Linear
Internal resistance
Non-linear
Test voltage
500 V