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Magyarországi központ
Beckhoff Automation Kft.

Magyarország, 1097 Budapest
Táblás utca 36–38. G. ép.

+36 1 50199-40
info@beckhoff.hu
www.beckhoff.com/hu-hu/

KL3042 | Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended

KL3042 | Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended

KL3042 | Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended

Run LED 1
Error LED 1
Run LED 2
Error LED 2
Power contact
+24 V
Power contact 0 V
+Input 1
+24 V
0 V
Shield
+Input 2
+24 V
0 V
Shield
Top view 
Contact assembly 
KL3042 | Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended

KL3042 | Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended

The job of the KL3042 analog input terminal is to supply power to measuring transducers located in the field and to transmit analog measurement signals with electrical isolation to the automation device. The voltage for the sensors is supplied to the terminal via the power contacts. The power contacts can optionally be supplied with operating voltage in the standard way or via a power feed terminal (KL9xxx) with electrical isolation. The input electronics is independent of the supply voltage of the power contacts. The 0 V rail is the reference potential for the inputs. The run LEDs give an indication of the data exchange with the Bus Coupler. The error LEDs indicate an overload condition and a broken wire.

Product status:

regular delivery

Product information

Technical dataKL3042
Number of inputs2
Power supply24 V DC via power contacts
Signal current0…20 mA
Technologysingle-ended
Internal resistance80 Ω + diode voltage 0.7 V
Common-mode voltage UCM
Conversion time~ 2 ms
Resolution12 bit
Measurement error/ uncertainty< ±0.3% (relative to full scale value)
Surge voltage resistancemax. 35 V
Electrical isolation500 V (K-bus/signal voltage)
Current consumption power contactsload only
Current consumption K-bustyp. 65 mA
Bit width in the process imageinput: 2 x 16 bit data (2 x 8 bit control/status optional)
Configurationno address or configuration setting
Special featureswith sensor supply
Weightapprox. 70 g
Operating/storage temperature-25…+60°C/-40…+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, DNV GL
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
KL3042Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended
KS3042Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended, pluggable wiring
KL3042-0010Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended, Siemens S5 format
KL3042-0011Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended, fast µP, scan time approx. 0.5 ms
KL3042-0012Bus Terminal, 2-channel analog input, current, 12 bit, single-ended, altered range: 0…21.5 mA, maximum value corresponds to 21.5 mA instead of 20 mA
KL3042-0050Bus Terminal, 2-channel analog input, current, 0…20 mA, 12 bit, single-ended, Siemens S7 format

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