ELX3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 24 bit, Ex i
+24 V Ex
0 V Ex
ELX3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 24 bit, Ex i
The system-integrated solution for explosion protection: PC-based control
The analog ELX3351 input terminal enables direct connection of a resistor bridge or load cell from hazardous areas, zone 0/20 and 1/21. The terminal can be connected in 4- or 6-wire technology. The ratio between the bridge voltage UD and the supply voltage UREF is determined in 24-bit resolution, and the load value is calculated as a process value. Apart from automatic self-calibration (can be deactivated), additional functions such as Tare and Freeze as well as dynamic filters are integrated. The ELX3351 is therefore functionally comparable to the EL3356.
EtherCAT terminals of the ELX series must always be operated in conjunction with the ELX9560 power supply terminal. This terminal generates an electrically isolated output voltage (24 V EX) from the input voltage (24 V DC) for supplying the subsequent ELX terminals. If a new power supply is required, the combination of an ELX9410 and an ELX9560 can be used so that further ELX terminals can be added. The ELX terminal string must be terminated with one ELX9012 or two ELX9410.
Product status:
regular delivery
Product information
| Technical data | ELX3351 |
|---|---|
| Technology | resistor bridge, strain gauge |
| Sensor types | resistor bridge, strain gauge |
| Number of inputs | 1, for 1 resistor bridge in full bridge technology |
| Bridge input resistance | 300 Ω…5 kΩ |
| Measuring range UD | max. ±18…±22 mV |
| Internal resistance | > 50 kΩ (UR, differential), > 1 MΩ (UD, differential) |
| Input filter limit frequency | typ. 3.6 kHz (-3 dB, low pass) |
| Conversion time | typ. 1.6 ms |
| Resolution | 24 bit, 32 bit presentation |
| Filter | 50 Hz, configurable |
| Measurement error/uncertainty | ±0.1% for the calculated load value in relation to the final load value (nominal strain gauge characteristic value of 2 mV/V), self-calibration active, 50 Hz filter active |
| Power supply UV | up to 10 V DC from power contacts, dependent on sensor |
| Supply voltage electronics | via E-bus |
| Current consumption power contacts | depends on sensor, min. 20 mA |
| Current consumption E-bus | typ. 85 mA |
| Supported nominal sensitivity | all, parameter resolution: 0.01 µV/V; recommended: 0.5…3 mV/V |
| Special features | self-calibration, dynamic filters, Freeze |
| Weight | approx. 60 g |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+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/see documentation |
| Approvals/markings | CE, UL, ATEX, IECEx, cFMus, CCC |
| Ex marking | ATEX: II 3(1)G Ex ec [ia Ga] IIC T4 Gc II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I IECEx: Ex ec [ia Ga] IIC T4 Gc [Ex ia Da] IIIC [Ex ia Ma] I cFMus: AIS Class I, II, III, Division 1, Groups A thru G Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec [ia Ga] IIC T4 Gc [AEx ia Da] IIIC T4 |
| Housing data | ELX-12-8pin |
|---|---|
| Design form | compact terminal housing with signal LEDs |
| Material | polycarbonate, blue |
| 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 | labeling of the BZxxxx series |
| Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section | s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 |
| Stripping length | 8…9 mm |
| Power contacts | 2 blade/spring contacts |
*s: solid wire; st: stranded wire; f: with ferrule
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