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RMCA61BD Dataheets PDF



Part Number RMCA61BD
Manufacturers Schneider Electric
Logo Schneider Electric
Description Zelio Analog Interface Modules
Datasheet RMCA61BD DatasheetRMCA61BD Datasheet (PDF)

Zelio Analog Interface Modules Catalog February 06 CONTENTS Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Specifications and Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Dimensions, .

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Document
Zelio Analog Interface Modules Catalog February 06 CONTENTS Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Specifications and Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Dimensions, Mounting Instructions, Wiring Diagrams . . . . . . . . . . . . . . . 10 Catalog Number Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 www.DataSheet.in www.DataSheet.in Zelio Analog Interface Modules Product Description The Zelio Analog range of converters is designed to convert signals emitted by sensors or electrical measurement devices, into standard electrical signals that are compatible with automation platforms and controllers (thermal processes, speed, etc.). They also allow the connection distance between a sensor and a measurement acquisition device to be increased, for example, between a thermocouple and a programmable controller. These converters are suitable for universal use, as they are UL listed, CSA certified, and conform to IEC standards. Measurement Signals for Thermocouples and Pt100 Probes The voltages induced by thermocouples vary between 10 and 80 μV/°C. Pt100 probes (100 ohms at 0 °C) produce about 0.5 mV/°C, with measurement currents of 1 mA. Depending on the sensor, the signal to be measured ranges from a few μV (thermocouple) to 250 and 700 mV for a Pt100 probe. Therefore, it is difficult to transmit these low level signals over long electric lines without encountering problems of interference, signal reduction, or errors. Connecting Zelio Analog converters close to the sensors resolves these problems: • • • 4–20 mA current loops transmitted over a long distance are less sensitive to interference than low level voltage signals from sensors, signal reductions during transmission (resistance) of voltages do not occur, the cables used to connect the converters to process equipment (programmable controllers) are standard cables, which are more cost effective than extension cables or compensation cables suitable for low level signals for Pt100 probes or thermocouples. The Zelio Analog Range The Zelio Analog range was developed to work with most common applications and to ensure simplicity of installation: • • • • • • • • • • • • pre-set input and output scales, requiring no adjustment outputs protected against reverse polarity, overvoltage, and short-circuits 24 Vdc power supply sealable protective cover DIN rail mounting and screw mounting options LED indicator on the front panel input and output selector switches on the front panel output with fallback value if no input signal is present (due to failure of a sensor, for example). The Zelio Analog converter range is divided into four families: Converters for J and K type thermocouples: RMTJ/K Converters for Universal Pt100 probes: RMPTp0 Converters for Optimum Pt100 probes: RMPTp3 Universal voltage/current converters: RMC. 02/2006 © 2006 Schneider Electric All Rights Reserved 3 www.DataSheet.in Zelio Analog Interface Modules Product Description Converters for J and K type thermocouples Thermocouples, which consist of two metals with different thermoelectric characteristics, produce a voltage that varies according to temperature. This voltage is transmitted to the Zelio Analog converter, which converts it to a standard signal. Converters for thermocouples have cold junction compensation to allow detection of measurement errors induced by the connection to the device itself. Converters for J and K type thermocouples have: 108999 • RMTJ40BD for inputs, a pre-set temperature range, depending on the model: — Type J: 32–302 °F (0–150 °C), 32–572 °F (0–300 °C), 32–1112 °F (0–600 °C) — Type K: 32–1112 °F (0–600 °C), 32–2192 °F (0–1200 °C). 108997 • for outputs, a switchable signal: — 0–10 V, 0–20 mA, 4–20 mA. RMTK90BD Converters for Universal Pt100 Probes Pt100 probes with platinum resistors are electrical conductors whose resistance varies according to the temperature. This ohmic resistance is transmitted to the Zelio Analog converter, which converts it to a standard signal. Converters for Universal Pt100 probes have: 109000 • for inputs, a pre-set temperature range, depending on the model: — -148–212 °F (-100 to 100 °C), — -40–104 °F (- 40 to 40 °C), — 32–212 °F (0 to 100 °C), RMPT70BD — 32–482 °F (0 to 250 °C), — 32–932 °F (0 to 500 °C). • for outputs, a switchable signal: — 0–10 V, 0–20 mA, 4–20 mA. The products in the Universal Pt100 family allow wiring of Pt100 probes in 2, 3, and 4-wire mode. Converters for Optimum Pt100 Probes Derived from the above family, these converters have: • • for inputs, a pre-set temperature range identical to that of converters for Universal Pt100 .


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