Eaton MTL4516 - MTL4541 A;MTL4541 AS;MTL4541 YA - Current Repeater

INM 4500/4600 Rev 12
42
DRAFT - 22 March 2018 DRAFT - 22 March 2018
6.4.2 MTL4541A/MTL4541AS/MTL4541YA - Current Repeater
Single channel, 4/20mA, passive input for HART® transmitters
The MTL4541A provides an input for separately powered 4/20mA transmitters and also
allows bi-directional transmission of HART communication signals superimposed on the
4/20mA loop current. Alternatively, the MTL4541AS acts as a current sink for a safe-area
connection rather than driving a current into the load.
* MTL4541Y is functionally identical to the MTL4541 but has an additional ID resistor
connected to terminal 12.
Terminal Function
1 Input –ve
2 Input +ve
8 Output –ve (+ve current sink)
9 Output +ve (–ve current sink)
12 ID resistor (MTL4541YA only)
13 Supply –ve
14 Supply +ve
Hazardous area Safe area
–
4/20mA
Load
+
–
+
MTL4541A MTL4541AS
Load
+
–
–
+
Vs–
Vs+
20 to 35V dc
4/20mA
6
5
4
3
2
1
I
I
9
8
7
12
11
10
13
14
*
ID




Figure 6.25:
Top labels for
MTL4541A &
MTL4541S