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KL3222 | Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision

KL3222 | Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision

KL3222 | Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision

Run LED 1
Error LED 1
Run LED 1
Error LED 2
Power contact
+24 V
Power contact 0 V
+R1
+RL1
-R1
-RL1
+R2
+RL2
-R2
-RL2
Top view 
Contact assembly 
KL3222 | Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision

KL3222 | Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision

The KL3222 analog input terminal allows resistance sensors to be connected directly. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The Bus Terminal's standard settings are: resolution 0.01 °C in the temperature range of Pt100 sensors in 4-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).

Product status:

regular delivery

Product information

Technical dataKL3222
Number of inputs2
Power supplyvia the K-bus
Technology4-wire
Sensor typesPt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, resistance measurement (e.g. potentiometer, 10 Ω…1.2/5 kΩ), KTY
Connection method4-wire
Measuring range-200…+850 °C (Pt sensors); -60…+250 °C (Ni sensors); -200…+320 °C (high-precision)
Conversion timetyp. 50 ms
Measuring currenttyp. 0.5 mA
Resolution0.01 °C per digit
Measurement error/ uncertainty0.1 °C at 40 °C ambient temperature, 4-wire connection, Pt100 sensors and 50 Hz filter
Electrical isolation500 V (K-bus/signal voltage)
Current consumption power contacts
Current consumption K-bustyp. 60 mA
Bit width in the process imageinput: 2 x 16 bit data (2 x 8 bit control/status optional)
Configurationno address setting, configuration via Bus Coupler or controller
Special featuresopen-circuit recognition, high-precision
Weightapprox. 70 g
Operating/storage temperature0…+55 °C/-25…+85 °C
Relative humidity95 %, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/variable
Approvals/markingsCE, UL, ATEX, IECEx
Pluggable wiringfor all KSxxxx Bus Terminals
Ex markingATEX:
II 3 G Ex ec IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
Housing dataKL-12-8pinKS-12-8pin
Design formcompact terminal housing with signal LEDsterminal housing with pluggable wiring level
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
s*: 0.08…1.5 mm²,
st*: 0.08…1.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWGs*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
s*: AWG 28…16,
st*: AWG 28…16,
f*: AWG 26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

Ordering information
KL3222Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision
KS3222Bus Terminal, 2-channel analog input, temperature, RTD (Pt100), 16 bit, high-precision, pluggable wiring

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