+24 V
EL3202-0020 | 2-channel input terminals PT100 (RTD) for 4-wire connection, high-precision, with calibration certificate
The analog input terminal EL3202-0020 enables direct connection of resistance sensors. A microprocessor handles linearisation across the whole temperature range, which is freely selectable. The EtherCAT Terminal’s standard settings are: resolution 0.01 °C in the temperature range of PT100 sensors in 4-wire connection. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. Sensor malfunctions such as broken wires are indicated by error LEDs. The EL3202-0020 has a precision of 0.1 °C at 40 °C ambient temperature. The terminal can also be operated with 2- or 3-wire connection and with other sensors than PT100. The maximum accuracy is achieved in 4-wire operation with PT100 sensors.
The calibration certificate for the respective serial number can be downloaded from www.beckhoff.com.
| Technical data | EL3202-0020 |
|---|---|
| Number of inputs | 2 |
| Power supply | via the E-bus |
| Distributed clocks | – |
| Input filter limit frequency | typ. 1 kHz |
| Sensor types | PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement (e.g. potentiometer, 10 Ω…1.2/4 kΩ), KTY sensors (types see documentation) |
| Connection method | 2-, 3-, 4-wire (default: 4-wire) |
| Measuring range | -200…+850 °C (PT sensors); -60…+250 °C (Ni sensors); -200…+320 °C (high-precision) |
| Resolution | 0.01 °C per digit |
| Conversion time | approx. 85 ms default setting, 2…800 ms configurable |
| Measuring current | typ. 0.5 mA |
| Measuring error | < ±0.1 °C at 40 °C ambient temperature, 4-wire connection,PT100 sensors and 50 Hz filter |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| Current consumption power contacts | – |
| Current consumption E-bus | typ. 190 mA |
| Bit width in the process image | 2 x 32 bit RTD input |
| Special features | |
| Weight | approx. 60 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos. | IP 20/variable |
| Approvals | CE, UL, Ex |
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| Related products | |
|---|---|
| EL3202-0010 | 2-channel analog input terminal, PT100 (RTD), 16 bits, high-precision |
| EL3201-0010 | 1-channel analog input terminal, PT100 (RTD), 16 bits, high-precision |
| EL3201-0020 | 1-channel analog input terminal, PT100 (RTD), 16 bits, high-precision, with calibration certificate |
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