MTL5582 Hazardous area Safe area MTL5582 RESISTANCE ISOLATOR to repeat RTD signals         The MTL5582 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 MTL5582 should be considered as an alternative, non-  configurable MTL5575, 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. LED indicator The module drives upscale in the case of open circuit detection. Note Green: power indication that this module is not suitable for use with measurement systems Power requirements, Vs where the resistance input channels are multiplexed. 33mA at 24V 35mA at 20V SPECIFICATION 28mA at 35V Maximum power dissipation within unit See also common specification 0.8W at 24V 1.0W at 35V Number of channels Safety description One Terminals 1 and 3 Location of RTD Uo = 1.2V Io = 4mA Po = 1.2mW U = 253V rms or dc Zone 0, IIC, T4 hazardous area m Non-energy-storing apparatus ≤ 1.5V, ≤ 0.1A, ≤ 25mW; can Div. 1, Group A, hazardous location be connected without further certification into any IS loop with Resistance source an open circuit voltage < 5V. 2-, 3-, or 4-wire* RTDs to BS 1904/DIN 43760 (100Ω at 0°C) Terminals 1 and 3 and 4 and 5 *user selectable by switches (factory set for 3-wire) Uo = 6.6V Io = 42mA Po = 69mW 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 Not suitable for muliplexed input cards 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 The given data is only intended as a product description and should not be regarded as a legal warranty of proper- ties or guarantee. In the interest of further technical developments, we reserve the right to make design changes. EUROPE (EMEA): +44 (0)1582 723633 THE AMERICAS: +1 800 835 7075 ASIA-PACIFIC: +65 6 645 9888 EPS5582 Rev3 280414 enquiry@mtl-inst.com csinfo@mtl-inst.com sales.mtlsing@cooperindustries.com