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Headquarters Malaysia
Beckhoff Automation Sdn. Bhd.

Lot 7, Lorong Teknologi A, Jalan Teknologi,
Taman Perindustrian Sains Selangor, Kota Damansara,
47810, Petaling Jaya, Selangor, Malaysia

+60 3 6151-3088
info@beckhoff.com.my
www.beckhoff.com/ms-my/

KL3356 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision

KL3356 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision

KL3356 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision

Power LED
Diff.
Calibr.
Error Diff.
Run LED
Measure
Ref.
Error Ref.
Power contact
+UV
Power contact
-UV
+UD
-UD
-Uv
Shield
+UREF
-UREF
+Uv
Shield
Top view 
Contact assembly 
The supply voltage UV is
supplied from an external
source (e.g. KL9512). The
maximum input voltage UREF
is limited to 12 V.
KL3356 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision

KL3356 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision

Precise strain measurement in the I/O system

Precise strain measurement in the I/O system

The KL3356 analog input terminal permits direct connection of a resistor bridge. An improved input circuit makes the KL3356 significantly more accurate than the KL3351. The ratio between the bridge voltage UD and the supply voltage UREF is determined in the input circuit. In order to achieve good long-term stability, the complete circuit is re-calibrated at least every three minutes. This procedure can be synchronized by the control in order to prevent the calibration leading to a delay in the production process.

Product status:

regular delivery

Product information

Technical dataKL3356
Number of inputs2, for 1 resistor bridge
Power supplyvia the K-bus
Signal voltageUD: -20…+20 mV
UREF: -12…+12 V
Signal voltage UD, UREF-20…+20 mV, -12…+12 V
Technologystrain gauge connection
Internal resistance> 200 kΩ (UREF), > 1 MΩ (UD)
Power supply UVvia power contacts
Conversion time< 250 ms, configurable
Filter50 Hz, configurable
Resolution16 bit
Measurement error/ uncertainty< ±0.01 % (relative to full scale value)
Current consumption power contactsload only
Current consumption K-bustyp. 85 mA
Bit width in the process imageinput: 2 x 16 bit data (2 x 8 bit control/status optional)
Special featuresincreased measuring accuracy, self-calibration
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*: 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
KL3356Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision
KS3356Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, high-precision, pluggable wiring

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