MTL Instruments MTL1171 Data sheet

DRAFT - 03 August 2017

Technical data

MTL signal conditioners

MTL1171
thermocouple input
converter

1 channel for type J and K
thermocouple sensors

The MTL1171 is a single channel thermocouple
input converter with 4-20mA and 1-5V outputs.
Input ranges are switch selectable.

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 or PBUS02 is used to feed power
onto the bus.

August 2017
EPS 1171 rev 3

Vs-

SW1

Vs+

Input +

Input-

Type J or K

thermocouple

MTL1171

1

2

Terminals Function

1 Input +

2 Input -

5 Current Output +/ Current Sink -

6 Current Output - / Current Sink +

7 Voltage Output +

8 Voltage Output -

D Power supply -ve

E Power supply +ve

System AI

Current

2 wire Tx

system input

input

Source Sink

5

+

4-20mA

6

-

7

+

8

1-5V

-

ED

+

-

+

-

Voltage

Channel

input

SW1

-ve

Return

Load

Load

+24V Tx
Power

Limit

SPECIFICATION see also common specification

Number of channels

Location of sensor

Input range

Output range

Open wire detection

Transfer accuracy

Temperature effect

Current consumption

Power dissipation

Isolation

Eaton Electric Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2017 Eaton
All Rights Reserved
Publication No. EPS 1171 rev 3 030817
August 2017

One, with fully floating outputs

Safe area

Type J or K thermocouple with 15 switch selectable ranges

1-5V or 4-20mA current source or sink

Switch selectable, upscale/downscale drive

0.1% of span typical, 0.2% max

0.01% / °C

37mA @ 24V current output. 13mA @ 24V voltage output

0.9W @ 24V

250V ac or dc functional isolation between power, field and system
circuits. (Tested to 1100Vac)

EUROPE (EMEA):

[phone]

[e-mail]

THE AMERICAS:

[phone]

[e-mail]

ASIA-PACIFIC:

[phone]

[e-mail]

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.

1