EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit
EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit
EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit
EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit
The EJ3318 EtherCAT plug-in module allows the direct connection of eight thermocouples and is therefore particularly well suited to compact applications on the signal distribution board. The module's circuit can operate thermocouple sensors using the 2-wire technique. A microprocessor handles linearization 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.
Product status:
Regular delivery
Product information
| Technical data | EJ3318 |
|---|---|
| Technology | temperature measurement (TC) |
| Connection method | 2-wire |
| 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) |
| 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 |
| Measurement error/ uncertainty | < ±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) |
| Weight | approx. 30 g |
| 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 |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Protect. rating/installation pos. | IP20/see documentation |
| Approvals/markings | CE, UL |
| Housing data | EJ-12-16pin |
|---|---|
| Design form | EtherCAT I/O plug-in module |
| Material | polycarbonate |
| Installation | on signal distribution board |
| Mechanical coding | EJ plug-in module: signal-specific coding pins on the housing, signal distribution board: holes in the printed circuit board |
| Locking | latching lug in circuit board cut-out |
| Connection method | field wiring: application-specific wiring level on the signal distribution board,
EJ plug-in module: 2 x 20-pin socket strip |
| Dimensions (W x H x D) | 12 mm x 66 mm x 55 mm |
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