توضیحات

توضیحات محصول

The MTL4541-5541 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 HART 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA loop current. Alternatively, the MTLx541S acts as a current sink for a safe-area connection rather than driving a current into the load. Separately powered current sources, such as 4-wire transmitters, can be connected but will not support HART communication

•  MTL4541

16ch AIO 4-20mA

REPEATER POWER SUPPLY

4/20mA, HART®, 2- or 3-wire transmitters

Number of channels : One

Location of transmitter : Zone 0, IIC, T4–6 hazardous area if suitably certified, Div. 1, Group A hazardous

Safe-area output

Signal range: 4 to 20mA

Under/over-range: 0 to 24mA

Safe-area load resistance (MTL4541) : @ 24mA: 0 to 360Ω @ 20mA: 0 to 450Ω

Safe-area load (MTL4541S) : Current sink: 600Ω max

Safety description

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 certifi  into