MTL4544 Eaton-MTL Repeater Power Supply 2-Channel 4-20mA HART

The MTLx544 provides fully-floating dc supplies for energising two conventional 2-wire or 3-wire 4/20mA or HART transmitters located in a hazardous area, and repeats the current in other circuits to drive two safe-area loads. For smart transmitters, the unit allows bi-directional transmission of digital communication signals superimposed on the 4/20mA loop current.

• Number of channels: Two
• Location of transmitter: Zone 0, IIC, T4-6 hazardous area if suitably certified
• Safe-area output: Signal range: 4 to 20mA
• Safe-area circuit ripple: < 50µA peak-to-peak
• Hazardous-area input: Signal range: 0 to 24mA (including over-range)
• 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 and 4 & 5 only)