MTL5544D 24V Repeater Power Supply for HART Transmitters
| Attribute | Value |
|---|---|
| Number of channels | One |
| Temperature drift | < 0.8µA/°C |
| Response time | Settles to within 10% of final value within 50µs |
| Communications supported | HART (terminals 1 & 2, output Ch 1 only) |
| LED indicator | Green: power indication |
| Maximum power dissipation within unit | 96mA at 24V dc |
The MTLx544D provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter located in a hazardous area, and repeats the current in other circuits to drive two safe-area loads. For HART 2-wire transmitters, the unit allows bi-directional transmission of digital communication signals superimposed on the 4/20mA loop current. Separately powered current sources, such as 4-wire transmitters, can be connected but will not support HART communication.
Terminals 2 to 1 and 3: Uo =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
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