MTL5042 EATON | Alldatasheet
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EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283 AMERICAS Tel: +1 281 571 8065 Fax: +1 281 571 8069 ASIA PACIFIC Tel: +65 6 487 7887 Fax: +65 6 487 7997 E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.com Aug 2008 The MTL5042 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 smart 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA signal. 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: 0 to 600 Ω Safe-area circuit output resistance: >2M Ω Safe-area circuit ripple <40µA 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 10µA Temperature drift <0.5µA/°C Response time Settles to within 10% of final value within 40µs Digital signal bandwidth 10Hz to 12kHz Communications supported HART® Honeywell DE Foxboro Yokogawa Brain Hazardous area Safe area HART® is a registered trademark of the HART Communication Foundation MTL5042 REPEATER POWER SUPPLY 4/20mA, smart, for 2- or 3-wire transmitters /MT54 /MT53 /MT52 /MT51 /MT50 /MT49 /MT55 /MT56 /MT57 /MT49/MT48 /MT49/MT49 /MT49/MT50 /MT49/MT51 /MT49/MT52 /MT150 /MT86/MT115/MT150 /MT86/MT115/MT43 /MT50/MT48/MT32/MT116/MT111/MT32/MT51/MT53/MT86/MT32/MT100/MT99 /MT43 /MT52/MT47/MT50/MT48/MT109/MT65 /MT72/MT72/MT67/MT42 /MT76/MT111/MT97/MT100/MT43 /MT150/MT52/MT47/MT50/MT48/MT109/MT65 /MT72/MT72/MT67/MT42 /MT42/MT32/MT72/MT97/MT110/MT100/MT45/MT104/MT101/MT108/MT100/MT32/MT99/MT111/MT109/MT109/MT117/MT110/MT105/MT99/MT97/MT116/MT111/MT114 /MT73 /MT73 Terminal Function
1 Current input
2 Transmitter supply +ve
3 Common
4 Optional HHC –ve
5 Optional HHC +ve
8 Optional HHC –ve
9 Optional HHC +ve
11 O u t p u t – ve
12 Output +ve
13 Supply –ve
14 Supply +ve
} HAZ4-6 connector reqd } SAF7-9 connector reqd LED indicator Green: power indication Supply voltage 20 to 35V dc Maximum current consumption (with 20mA signal) 75mA at 24V 85mA at 20V 55mA at 35V Maximum power dissipation within unit (with 20mA signal) 1.3W at 24V Safety description Terminals 2 to 1 and 3: 28V, 300Ω, 93mA; U m = 250V rms or dc Terminals 1 to 3: Non-energy-storing apparatus ≤1.2V, ≤0.1A, ≤20µJ and ≤25mW; can be connected without further certification into any IS loop with an open-circuit voltage <28V Note: Terminals 1 and 3 only support HART® communications in one direction from field device to safe-area connections 11 and 12