EPS5541-1 Hazardous area Safe area MTL5541 REPEATER POWER SUPPLY 4/20mA, smart, for 2- or 3-wire & ( transmitters ) < , < , The MTL5541 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 Terminal Function See also common specification 1 Current input 2 Transmitter supply +ve Number of channels 3 Common One 10 Output +ve via 220 for HART apps. Location of transmitter 11 Output ve Zone 0, IIC, T46 hazardous area if suitably certified 12 Output +ve Div. 1, Group A hazardous location 13 Supply ve Safe-area output 14 Supply +ve Signal range: 4 to 20mA Under/over-range: 0 to 24mA Safe-area load resistance: 0 to 360 24mA 0 to 450 20mA Safe-area circuit output resistance: > 1M Safe-area circuit ripple < 50A peak-to-peak Hazardous-area input Signal range: 0 to 24mA (including over-range) Transmitter voltage: 16.5V at 20mA Transfer accuracy at 20C Better than 15A Temperature drift < 0.8A/C Response time Settles to within 10% of final value within 50s 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) 0.7W at 24V Safety description Terminals 2 to 1 and 3: V =28V I =93mA P =651mW U = 253V rms or dc o o o m 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 The given data is only intended as a product description and should not be re- garded as a legal warranty of properties or guarantee. In the interest of further technical developments, we reserve the right to make design changes. EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283 AMERICAS Tel: +1 281 571 8065 Fax: +1 281 571 8069 Jan 2009 ASIA PACIFIC Tel: +65 6 487 7887 Fax: +65 6 487 7997 E-mail: enquiry mtl-inst.com Web site: www.mtl-inst.com EPS5500SYS-2 DIMENSIONS (mm) MTL5500 SERIES COMMON % & ( SPECIFICATION )3( ) *+, Please go to our website at www.mtl-inst.com for the latest information 3( regarding safety approvals, certificates and entity parameters. ,A ., Connectors Each MTL5500 unit is supplied with signal connectors, as applicable. When using crimp ferrules for the hazardous and non- hazardous (safe) signal connectors the metal tube length should be 12mm and the wire trim length 14mm. Isolation 250V rms, tested at 2200V rms minimum, between safe-area, hazardous-area and power supply terminals 50V ac or dc between safe-area circuits where applicable. Supply voltage 20 35V dc Location of units Safe area Terminals 1 B 2 Accepts conductors of up to 2.5mm stranded or single-core Mounting MTL5500 series backplanes Ambient temperature limits 20 to +60C (6 to +140F) operating 40 to +80C (40 to +176F) storage Humidity 5 to 95% relative humidity Weight 110g approximately (except where indicated) HART is a registered trademark of HART Communication Foundation The given data is only intended as a product description and should not be re- garded as a legal warranty of properties or guarantee. In the interest of further technical developments, we reserve the right to make design changes. EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283 AMERICAS Tel: +1 281 571 8065 Fax: +1 281 571 8069 Jan 2009 ASIA PACIFIC Tel: +65 6 487 7887 Fax: +65 6 487 7997 E-mail: enquiry mtl-inst.com Web site: www.mtl-inst.com (3( 3&