10ohm To 400ohm MTL5582B Resistance Isolator
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MTL5582B RESISTANCE ISOLATORThe MTLx582B connects to a 2-, 3-, or 4-wire resistance temperature device (RTD) or other resistance located in a hazardous area, isolates it and repeats the resistance to a monitoring system in the safe area. The module is intended typically (but not exclusively) for use with Pt100 3-wire RTDs. Switches enable selection of 2-, 3-, or 4-wire RTD connection. The MTLx582B should be considered as an alternative, non-configurable MTLx575, for use in RTD applications where a resistance input is preferred or needed instead of 4/20mA. The design is notable for its ease of use and repeatability. The number of wires which can be connected on the safe-area side of the unit is independent of the number of wires which can be connected on the hazardous-area side. The module drives upscale in the case of open circuit detection.
SPECIFICATION Location of RTD Zone 0, IIC, T4 hazardous area Div. 1, Group A, hazardous location Resistance source 2-, 3-, or 4-wire* RTDs to BS 1904/DIN 43760 (100Ω at 0°C) *user selectable by switches (factory set for 3-wire) Resistance range 10Ω to 400Ω RTD excitation current 200μA nominal Output configuration 2, 3 or 4 wires (independent of mode selected for hazardous area terminals) Output range 10Ω to 400Ω (from a 100μA to 5mA source) Temperature drift ±10mΩ/°C typical (0.01%/°C @ 100Ω) Response time To within 4% of final value within 1s Safety drive on open-circuit sensor Upscale to 420Ω nominal Transfer accuracy@20°C <0.15Ω at excitation current 1 - 5mA <0.25Ω at excitation current 0.5 - 1mA LED indicator Green: power indication Power requirements, Vs 33mA at 24V 35mA at 20V 28mA at 35V Maximum power dissipation within unit 0.8W at 24V 1.0W at 35V Safety description Terminals 1 and 3 Uo = 1.2V Io = 4mA Po = 1.2mW Um = 253V rms or dc Non-energy-storing apparatus ≤ 1.5V, ≤ 0.1A, ≤ 25mW; can be connected without further certification into any IS loop with an open circuit voltage < 5V. Terminals 1, 3, 4 and 5 U = 6.51V I = 10mA P = 17mW
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Product Tags: MTL5582B 400ohm RESISTANCE ISOLATOR 10ohm RESISTANCE ISOLATOR |
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