Article image ELX3312

Beckhoff ELX3312

ELX3312 | 2-channel analog input terminal thermocouple/mV measurement, 2-wire connection, 16 bit, Ex i

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Description

The ELX3312 analog input terminals allows the direct connection of thermocouples located in hazardous areas classified Zone 0/20 or 1/21. The circuitry of the ELX3312 can operate sensors with 2-wire technology. Linearisation is possible over the entire freely selectable temperature range. The error LEDs indicate a broken wire. Compensation for the cold junction is achieved through internal temperature measurement. Millivolt measurement is also possible with ELX3312.

Technical parameters

Technology: temperature measurement
Sensor types: thermocouples type K, J, L, E, T, N, U, B, R, S, C (default: type K)
Number of inputs: 2 (differential)
Connection method: 2-wire
Measuring range: depending on sensor type, type K -270…+1370 °C, voltage measurement: ±30…±75 mV, for further types and details see documentation
Resolution: 0.1 °C per digit
Measuring error: < ±0.3 % (relative to full scale value)
Internal resistance: typ. ≥ 10 kΩ (differential)
Input filter limit frequency: typ. 1 kHz; depending on sensor length, conversion time, sensor type
Conversion time: 10…5000 ms (adjustable, default: 270 ms)
Supply voltage electronics: 24 V DC (via power contacts), ELX9560 power supply
Current consumption power contacts: typ. 10 mA
Current consumption E-bus: typ. 70 mA
Special features: limit value monitoring, digital filter and characteristic curve linearisation integrated
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
Length: 0.00 m
Width: 0.00 m
Height: 0.00 m