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Beckhoff
EJ3318
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Beckhoff EJ3318
EJ3318 | 8-channel input thermocouple
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Описание
The EJ3318 analog input allows the direct connection of eight thermocouples and is therefore particularly well suited to compact applications on the signal distribution board. The EtherCAT plug-in module's circuit can operate thermocouple sensors using the 2-wire technique. A microprocessor handles linearisation across the whole temperature range, which is freely selectable. The error LEDs indicate a broken wire. The compensation for the cold junction is done by two RTDs (PT1000), which can be placed anywhere on the signal distribution board. The EJ3318 can also be used for mV measurements.
Технические характеристики
| Technology: | temperature measurement |
| Sensor types: | thermocouples type K, J, L, E, T, N, U, B, R, S, C (default setting type K), mV measurement |
| Number of inputs: | 8 x TC, 2 x PT1000 (compensation for the cold junction) |
| Connection method: | 2-wire |
| Measuring range: | in the range defined in each case for the sensor (default setting: type K; ‑200…+1370 °C); mV measurement: ±30 mV…±75 mV |
| Resolution: | 0.1 °C per digit |
| Measuring error: | < ±0.3 % (relative to full scale value) |
| Input filter limit frequency: | typ. 1 kHz; depending on sensor length, conversion time, sensor type |
| Conversion time: | approx. 5 s up to 40 ms, depending on configuration and filter setting, default: approx. 500 ms |
| Auxiliary power current: | – |
| Distributed clocks: | – |
| Power supply: | via the E-bus |
| Wiring fail indication: | yes |
| Current consumption E-bus: | 190 mA |
| Electrical isolation: | 500 V (E-bus/field potential) |
| Special features: | open-circuit recognition, error recognition of the external cold junction compensation (CJC) |
| Dimensions (W x H x D): | approx. 12 mm x 66 mm x 55 mm |
| Operating/storage temperature: | -25…+60 °C/-40…+85 °C |
| Relative humidity: | 95 %, no condensation |
| EMC immunity/emission: | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos.: | IP 20/variable |
| Approvals/markings: | CE, UL |
Логистические характеристики
| ТН ВЭД: | |
| Страна происхождения: | |
| EAN: | |
| Вес: | 0,00 kg |
| Длина: | 0,00 m |
| Ширина: | 0,00 m |
| Высота: | 0,00 m |