KL3351 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
drawn from the terminal or
can be supplied from an
external source. The terminal
supplies 5 V. The maximum
input voltage UREF is limited
to 10 V.
KL3351 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
Precise strain measurement in the I/O system
The KL3351 analog input terminal permits direct connection of a resistor bridge. The bridge voltage, UD, and the supply voltage, UREF, to the bridge are digitized with a 16-bit resolution, and are transmitted along an electrically isolated channel to the supervising automation system. The input channels are available in the form of two 16-bit values for further processing. The resulting measurement can be calculated from the formula: measurement = UD/UREF. Precise acquisition of the supply voltage along with the bridge voltage compensates for long-term and temperature drift.
Product status:
regular delivery
Product information
| Technical data | KL3351 |
|---|---|
| Number of inputs | 2, for 1 resistor bridge |
| Power supply | via the K-bus |
| Signal voltage UD | -16…+16 mV, configurable |
| Signal voltage UREF | ±10 V |
| Technology | strain gauge connection |
| Internal resistance | > 200 kΩ (UREF), > 1 MΩ (UD) |
| Power supply UV | 5 V DC, max. 20 mA |
| Conversion time | < 250 ms, configurable |
| Filter | 50 Hz, configurable |
| Resolution | 16 bit |
| Measurement error/uncertainty | < ±0.1% (relative to full scale value) |
| Current consumption power contacts | – (no power contacts) |
| Current consumption K-bus | typ. 65 mA |
| Bit width in the process image | input: 2 x 16 bit data (2 x 8 bit control/status optional) |
| Special features | with internal bridge supply |
| Weight | approx. 70 g |
| Operating temperature | 0…55°C |
| Storage temperature | -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. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
| Pluggable wiring | for all KSxxxx Bus Terminals |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Housing data | KL-12-8pin | KS-12-8pin |
|---|---|---|
| Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
| Material | polycarbonate | |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
| Side by side mounting by means of | double slot and key connection | |
| Marking | labeling of the BZxxxx series | |
| Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver | |
| Connection cross-section | s*: 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 AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
| Stripping length | 8…9 mm | 9…10 mm |
| Current load power contacts | Imax: 10 A | |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
*s: solid wire; st: stranded wire; f: with ferrule
| Ordering information | |
|---|---|
| KL3351 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit |
| KS3351 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, pluggable wiring |
| KL3351-0001 | Bus Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, conversion time typ. 10 ms |
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