1-channel input terminal PT100 (RTD) KL3201
Run LED1
Error LED1
Top view 
Contact assembly 
extended shock and vibration range

KL3201 | 1-channel input terminal PT100 (RTD)

The KL3201 analog input terminal allows resistance sensors to be connected directly. The Bus Terminal’s circuitry can operate the sensors using 2-wire or 3-wire connection techniques. Linearisation over the full temperature range is realised with the aid of a microprocessor. The temperature range can be selected freely. The Bus Terminal's standard setting is: resolution 0.1 °C in the temperature range of PT100 sensors in 3-wire connection. The run LEDs give an indication of the data exchange with the Bus Coupler. The error LEDs indicate sensor faults (e.g. a broken wire).

Technical data KL3201 | KS3201
Number of inputs 1
Power supply via the K-bus
Technology 2-/3-wire
Sensor types PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement (e.g. potentiometer, 10 Ω…1.2/5 kΩ)
Connection method 2- or 3-wire (default: 3-wire)
Measuring range -200…+850 °C (PT sensors); -60…+250 °C (Ni sensors)
Conversion time ~ 200 ms
Measuring current typ. 0.5 mA
Resolution 0.1 °C per digit
Measuring error < ±1 °C
Electrical isolation 500 V (K-bus/signal voltage)
Current consumption power contacts – (no power contacts)
Current consumption K-bus typ. 60 mA
Bit width in the process image input: 1 x 16 bit data (1 x 8 bit control/status optional)
Configuration no address setting, configuration via Bus Coupler or controller
Special features open-circuit recognition
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, GL