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 |
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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 |
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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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