KL3214 | Bus Terminal, 4-channel analog input, temperature, RTD (Pt100), 16 bit, 3-wire connection
CH1...4
+24 V
KL3214 | Bus Terminal, 4-channel analog input, temperature, RTD (Pt100), 16 bit, 3-wire connection
The KL3214 analog input terminal allows four resistance sensors to be connected directly. The Bus Terminal circuit can operate sensors using the 3-wire technique in a compact 12 mm housing. A microprocessor handles linearization across the whole temperature range, which is freely selectable. The Bus Terminal’s standard settings are: resolution 0.1°C. Sensor malfunctions such as broken wires are indicated by error LEDs.
Product status:
regular delivery
Product information
| Technical data | KL3214 |
|---|---|
| Number of inputs | 4 |
| Power supply | via the K-bus |
| Input filter limit frequency | typ. 1 kHz |
| Sensor types | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, potentiometer: 10 Ω…1.2/4 kΩ, KTY sensors (types see documentation) |
| Measuring range | -200…+850°C (Pt sensors); -60…+250°C (Ni sensors) |
| Connection method | 3-wire |
| Conversion time | approx. 170 ms default setting |
| Measuring current | < 0.5 mA (load-dependent) |
| Resolution | 0.1°C per digit |
| Measurement error/ uncertainty | < ±0.5°C for Pt sensors |
| Electrical isolation | 500 V (K-bus/signal voltage) |
| Current consumption power contacts | – |
| Current consumption K-bus | typ. 120 mA |
| Special features | open-circuit recognition |
| Weight | approx. 60 g |
| Operating/storage temperature | 0…+55°C/-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, UL |
| Housing data | HD housing |
|---|---|
| Design form | HD (High Density) housing with signal LEDs |
| Material | polycarbonate |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| 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 | – |
| Wiring | solid conductors (s): direct plug-in technique; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section | s*: 0.08…1.5 mm², st*: 0.25…1.5 mm², f*: 0.14…0.75 mm² |
| Stripping length | 8…9 mm |
*s: solid wire; st: stranded wire; f: with ferrule
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