
DRAFT - 03 August 2017
Technical data
MTL signal conditioners
MTL1143 Transmitter
Power Supply with
Repeat Output
1 Channel, Smart for
2/4-wire transmitters
The MTL1143 is a Single Channel Analogue
Input isolator with dual outputs. HART
communication is provided for Smart two wire
transmitters via Output 1. The transmitter
can be interrogated either from the operator
station or by a hand-held communicator (HHC).
Power for this module is supplied via the
power bus embedded in the DIN rail.
The PBUS6.2 kit must be ordered separately.
10 x 2 way power clips are provided to power
20 modules. The MTL1991 is used to feed
power onto the bus.
August 2017
EPS 1143 rev 3
PWR
+
-
Terminals Function
1 Tx+
2 Input
3 Common
5 Output + ( with HART )
6 Output - ( with HART )
7 Repeat Output +
8 Repeat Output -
D Power supply -ve
E Power supply +ve
Tx+
1
+
Input
2
Com
3
D E
Vs- Vs+
5
+
4-20mA
6
-
7
+
4-20mA
8
-
Load
Load
Output 1
Output 2
SPECIFICATION see also common specification
Number of channels
Location of Transmitter
Input and output signal range
Under/Over-range
System output load resistance (source mode)
Power supply voltage
Transmitter supply voltage (field power supply)
Transfer Accuracy at 20 °C
Temperature drift
Maximum current consumption (with 20mA signal)
Maximum power dissipation within unit
Digital Signal Bandwidth
Isolation
Eaton Electric Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: mtlenquiry@eaton.com
www.mtl-inst.com
© 2017 Eaton
All Rights Reserved
Publication No. EPS 1143 rev 3 030817
August 2017
One, with 2 fully floating outputs
Safe area
4 to 20mA
<3.0mA to >23mA
@ 20mA: O/P1 0 to 330Ω, O/P2 0 to 380Ω
@ 24mA: O/P1 0 to 270Ω, O/P2 0 to 300Ω
18V to 32V DC
≥16.5V at 20mA
Transmitter powering mode: < ±20μA
<2μA/°C (-20 to +60°C)
53mA @ 24V dc
<0.85W @ 24V dc
Approx. 3dB @ 1KHz to 2.2KHz
250V ac or dc functional isolation between power, field and system
circuits. (Tested to 1100Vac)
EUROPE (EMEA):
+44 (0)1582 723633
mtlenquiry@eaton.com
THE AMERICAS:
+1 800 835 7075
mtl-us-info@eaton.com
ASIA-PACIFIC:
+65 6 645 9888
sales.mtlsing@eaton.com
The given d ata is only intended as a p roduct
descrip tion and sho uld not be reg arded as a legal
warrant y of properties or gu arantee. In t he interest
of further technical developments, we reserve the
right to make de sign changes.
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