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Beckhoff
KL3312
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Beckhoff KL3312
KL3312 | 2-channel thermocouple input terminal with open-circuit recognition
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Description
The KL3312 analog input terminal allows thermocouples to be connected directly. The Bus Terminal’s circuitry can operate thermocouple sensors using the 2-wire technique. Linearisation over the full temperature range is realised with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicate a broken wire. Compensation for the cold junction is made through an internal temperature measurement at the terminals. The KL3312 can also be used for mV measurement.
Technical parameters
| Number of inputs: | 2 |
| Power supply: | via the K-bus |
| Technology: | 2-wire |
| Thermocouple sensor types: | types J, K, L, B, E, N, R, S, T, U (default setting type K), mV measurement |
| Connection method: | 2-wire |
| Measuring range: | in the range defined in each case for the sensor (default setting: type K; -100…+1370 °C); mV measurement: ±30 mV…±120 mV |
| Resolution: | 0.1 °C per digit |
| Conversion time: | ~ 250 ms |
| Wiring fail indication: | yes |
| Measuring error: | < ±0.5 % (relative to full scale value) |
| Electrical isolation: | 500 V (K-bus/signal voltage) |
| 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) |
| Configuration: | no address setting, configuration via Bus Coupler or controller |
| Weight: | approx. 70 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. class/installation pos.: | IP 20/variable |
| Approvals: | CE, UL, Ex |
Logistic parameters
| ECCN: | |
| Country of Origin: | |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |