2-channel analog input terminal 0…2 V (accuracy 0.05 %) KL3172
Error LED 2
Run LED2
Run LED
(K-bus)
Error LED1 
Run LED1 
Power LED (K-bus) 
Power contact
+24 V
Power contact 0 V
+Input 1
-Input 1
Ground
Shield
+Input 2
-Input 2
Ground
Shield
Contact assembly 

KL3172 | 2-channel analog input terminal 0…2 V (accuracy 0.05 %)

The KL3172 analog input terminal processes signals in the range of 0 to 2 V. The voltage is digitised to a resolution of 16 bits and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the Bus Terminal have differential inputs and a common, internal ground potential. With the high measurement accuracy of ±0.05 % (relative to full scale value), the terminal is optimised for high-precision control processes, such as dosing, filling, or quality assurance. The Bus Terminal has two channels within a housing. LEDs indicate data exchange with the Bus Coupler.

Technical data KL3172 | KS3172
Number of inputs 2
Power supply via the K-bus
Signal voltage 0…2 V
Technology differential input
Internal resistance > 200 kΩ
Common-mode voltage UCM 35 V max.
Resolution 16 bit
Conversion time 140 ms, configurable
Filter 50 Hz, configurable
Measuring error < ±0.05 % (relative to full scale value)
Electrical isolation 500 V (K-bus/signal voltage)
Current consumption power contacts
Current consumpt. K-bus typ. 85 mA
Bit width in the process image input: 2 x 16 bit data (2 x 8 bit control/status optional)
Special features increased measuring accuracy
Weight approx. 70 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all KSxxxx Bus Terminals
Approvals CE, UL, Ex
Special terminals
KL3172-0500 2-channel analog input terminal, 0…500 mV