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Beckhoff
ELX3351
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Beckhoff ELX3351
ELX3351 | 1-channel analog input terminal strain gauge, 16 bit, Ex i
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Description
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 U. D, and the supply voltage U. REF, 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 Tara and Freeze as well as dynamic filters are integrated. The ELX3351 is therefore functionally comparable to the EL3356.
Technical parameters
| 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…1.5 kΩ |
| Measuring range UD: | max. -18…+18 mV |
| Measuring range UREF: | max. -12…+12 V |
| Internal resistance: | > 25 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 |
| Measuring error: | < ±0.5 % (relative to full scale value), self-calibration activ |
| Power supply UV: | up to 12 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/storage temperature: | -25…+60 °C/-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. class/installation pos.: | IP 20/see documentation |
| Approvals/markings: | CE, UL, ATEX, IECEx, cFMus |
| 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 nA [ia Ga] IIC T4 Gc Class I, Zone 2, AEx ec [ia Ga] IIC T4 Gc [AEx ia Da] IIIC T4 |
Logistic parameters
| ECCN: | |
| Country of Origin: | |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |