MTL5541-T EATON | Alldatasheet
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© 2018 Eaton All Rights Reserved Publication No. Eaton Electric Limited, Great Marlings, Butterfield, Luton Beds, LU2 8DL, UK. Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283 E-mail: mtlenquiry@eaton.com www.mtl-inst.com EUROPE (EMEA): +44 (0)1582 723633 mtlenquiry@eaton.com THE AMERICAS: +1 800 835 7075 mtl-us-info@eaton.com ASIA-PACIFIC: +65 6 645 9888 sales.mtlsing@eaton.com The given data is only intended as a product description and should not be regarded as a legal warranty of properties or guarantee. In the interest of further technical developments, we reserve the right to make design changes. EPS5541/S-T Rev1 230118 DRAFT 23 January 2018 MTL5541/S -T REPEATER POWER SUPPL Y 4/20mA, HART®, 2- or 3-wire transmitters The MTL5541-T provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter, which is located in a hazardous area, and repeats the current in another floating circuit to drive a safe-area load. For HART 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA loop current. Alternatively, the MTL5541S-T acts as a current sink for a safe-area connection rather than driving a current into the load. Separately powered current sources, such as 4-wire transmitters, can be connected but will not support HART communication. SPECIFICATION See also common specification Number of channels One Location of transmitter Zone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A hazardous location Safe-area output Signal range: 4 to 20mA Under/over-range: 0 to 24mA Safe-area load resistance (MTL5541-T) @ 24mA: 0 to 360Ω @ 20mA: 0 to 450Ω Safe-area load (MTL5541S-T) Current sink: 600Ω max. Maximum voltage source: 24V dc Safe-area circuit output resistance: > 1MΩ Safe-area circuit ripple < 50µA peak-to-peak Hazardous-area input Signal range: 0 to 24mA (including over-range) Transmitter voltage: 16.5V at 20mA Transfer accuracy at 20°C Better than 15µA Temperature drift < 0.8µA/°C Response time Settles to within 10% of final value within 50µs Communications supported HART (terminals 1 & 2 only) LED indicator Green: power indication Maximum current consumption (with 20mA signal) 51mA at 24V Power dissipation within unit (with 20mA signal) MTL5541-T 0.7W @ 24V dc MTL5541S-T 1.0W @ 24V dc Safety description Terminals 2 to 1 and 3: U o=28V Io=93mA Po=651mW Um = 253V rms or dc Terminals 1 to 3: Simple apparatus ≤1.5V, ≤0.1A and ≤25mW; can be connected without further certification into any IS loop with an open-circuit voltage <28V Ambient temperature limits -20°C to + 65°C (-6 to + 149°F) operating -40°C to + 80°C (-40 to + 176°F) storage MTL5541-T / MTL5541S-T Hazardous area Safe area Vs– Vs+ 20 to 35V dc 4/20mA MTL5541 MTL5541S 4/20mA Load+ Load Com Tx+ Input I I