MTL5041 REPEATER POWER SUPPLY Hazardous area Safe area 4/20mA, for 2-wire transmitters 6 5 4 + The MTL5041 provides a fully-floating dc supply for energising a conventional 2-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. 4/20mA – 3 2 1 I I 7 8 9 10 – 11 4/20mA 12 Load + 13 14 Vs– 20 to 35V dc Vs+ 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 Over/under-range: 0 to 24mA Safe-area load resistance: 0 to 1kΩ Safe-area circuit output resistance: >2MΩ Safe-area circuit ripple <125µA 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 20µA (typically 5µA) Temperature drift <1µA/°C Response time Settles to within 10% of final value within 250µs LED indicator Green: power indication Supply voltage 20 to 35V dc Maximum current consumption (with 20mA signal) 70mA at 24V 85mA at 20V 55mA at 35V Maximum power dissipation within unit (with 20mA signal) 1.2W at 24V Safety description 28V, 300Ω, 93mA; Um = 250V rms or dc EUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283 AMERICAS Tel: +1 603 926 0090 Fax: +1 603 926 1899 ASIA PACIFIC Tel: +65 487 7887 Fax: +65 487 7997 E-mail: [email protected] Web site: www.mtl-inst.com Terminal Function 1 2 11 12 13 14 Input –ve Input +ve Output –ve Output +ve Supply –ve Supply +ve June 2004