Article image ELX3351-0090

Beckhoff ELX3351-0090

ELX3351-0090 | 1-channel analog input terminal strain gauge, 16 bit, Ex i, TwinSAFE SC

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Description

The analog ELX3351-0090 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. R, is determined in 16-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.

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: 24 V DC (via power contacts), ELX9560 power supply
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, TwinSAFE SC
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

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Weight: 0.00 kg
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