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KL3228 | Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit

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KL3228 | Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit

KL3228 | Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit

Error LED 1
Error LED 3
Error LED 5
Error LED 7
Error LED 2
Error LED 4
Error LED 6
Error LED 8
Power contact
+24 V
Power contact 0 V
+R1
+R3
+R5
+R7
+R2
+R4
+R6
+R8
Top view 
Contact assembly 
KL3228 | Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit

KL3228 | Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit

The KL3228 analog input terminal enables connection of eight resistance sensors. The Bus Terminal’s circuitry can handle sensors using the 1-wire technique. 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 0.1°C within the temperature range of Ni1000 sensors. The error LEDs indicate sensor faults (e.g. a broken wire).

Product status:

regular delivery

Product information

Technical dataKL3228
Number of inputs8
Power supplyvia the K-bus
Technology1-wire
Sensor typesPt1000, Ni1000
Measuring range-50…+150°C (Pt sensors); -50…+150°C (Ni sensors)
Connection method1-wire
Conversion time~ 1 s
Measuring currenttyp. ~ 0.5 mA
Resolution0.1°C per digit
Measurement error/uncertainty~ ±1°C, depending on wiring
Electrical isolation500 V (K-bus/signal voltage)
Current consumption power contacts
Current consumption K-bustyp. 85 mA
Bit width in the process imageinput: 8 x 16 bit data (8 x 8 bit control/status optional)
Configurationno address setting, configuration via Bus Coupler or controller
Special featuresopen-circuit recognition
Weightapprox. 75 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*: AWG28…14,
st*: AWG28…14,
f*: AWG26…16
s*: AWG28…16,
st*: AWG28…16,
f*: AWG26…16
Stripping length8…9 mm9…10 mm
Current load power contactsImax: 10 A

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

Ordering information
KL3228Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit
KS3228Bus Terminal, 8-channel analog input, temperature, RTD (Pt1000, Ni1000), 16 bit, pluggable wiring

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