MTL1249 signal converter
DRAFT - 21 March 2016
Technical data
MTL signal conditioners
September 2016
EPS1249 rev 2
MTL1249 signal
converter
System AI
voltage / current
MTL1249
V+
The MTL1249 is a single channel signal
conditioner which can accept voltage or current
inputs and provide a voltage or current output.
The signal levels are selected by the user using
switches on the module.
Current
Input
Source
VII
2
I+
+
5
1
V
V/I
-
6
V/I
4
D
Load
-
+
7
-
8
Power for this module is supplied via the power
bus embedded in the DIN rail in conjunction with
the power bus accessories.
+
I
V
+
Voltage
- Input
2 wire Tx
System Input
Sink
SW1
-ve
Load Return
+24V
Tx
Limit Power
E
+24V
Terminals
Function
Terminals
Function
1
Voltage input (+)
5
Current Output +
2
Voltage / Current Input -
6
Current output -
4
Current input +
7
Voltage output +
8
Voltage output -
D
Power supply -ve
E
Power supply +ve
SPECIFICATION
See also common specification
Number of channels
One, with fully floating input and outputs
Location of equipment
Safe area
Input signal ranges
0-100mV, 0-1V, 0-5V, 0-10V, 1-5V, 0-20mA, 4-20mA
Output signal ranges
0-5V, 1-5V, 0-10V, 2-10V, 0-20mA, 4-20mA, sink or source
Over-range
>103%
Field input resistance
Current mode 25Ω
Voltage mode >100kΩ
System output load
Current mode @ 20mA: 0 to 550Ω
Voltage mode 10kΩ (output impedance <150Ω)
Response time
20mS
Transfer Accuracy at 20 °C
0.2% (0.4% 100mV input)
Temperature drift
<0.01% of span/°C
Power supply voltage,
18V to 32V DC
Maximum current consumption (with 20mA signal)
38mA @ 24V dc
Maximum power dissipation within unit
<1W @ 24V dc
Isolation
50V ac or dc between power, field and system circuits. (tested to 840V)
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
© 2016 Eaton
All Rights Reserved
Publication No. EPS 1249 rev 2 230916
September 2016
1
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 data is only intended as a product
description and should not be regarded as a legal
warranty of properties or guarantee. In the interest
of further technical developments, we reserve the
right to make design changes.
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