MTL5549 MTL SURGE TECHNOLOGIES, MTL5549 Datasheet
MTL5549
Manufacturer Part Number
MTL5549
Description
ISOLATED BARRIER, AN O/P
Manufacturer
MTL SURGE TECHNOLOGIES
Datasheet
1.MTL5549.pdf
(2 pages)
Specifications of MTL5549
Input Type
4 - 20mA
Output Type
Current / Pressure Converter
Approval Bodies
ATEX
External Depth
123.6mm
External Length / Height
109.8mm
External Width
15.8mm
Isolation Input
Isolated
Mounting
RoHS Compliant
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
NA
The MTL5549 accepts 4/20mA floating signals from safe-area
controllers to drive 2 current/pressure converters (or any other load
up to 800Ω) in a hazardous area. For smart valve positioners,
the module also permits bi-directional transmission of digital
communication signals so that the device can be interrogated
either from the operator station or by a hand-held communicator.
Process controllers with a readback facility can detect open or short
circuits in the field wiring: if these occur, the current taken into the
terminals drops to a preset level. The MTL5549Y is very similar to
the MTL5549 except that it provides open circuit detection only
(i.e. no short-circuit detection)
SPECIFICATION
See also common specification
Number of channels
Location of I/P converter
Working range
Digital signal bandwidth
Maximum load resistance
Minimum load resistance
Output resistance
Under/over range capability
Input and output circuit ripple
Transfer accuracy at 20°C
Temperature drift
Input characteristics
Response time
Communications supported
LED indicator
Maximum current consumption (with 20mA signals into 250Ω load)
Power dissipation within unit (with 20mA signals into 250Ω load)
Safety description (each channel)
MTL5549/5549Y
ISOLATING DRIVER
two-channel, for 4–20mA smart valve posi-
tioners with line fault detection
Two
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div. 1, Group A, hazardous location
4 to 20mA
500Hz to 10kHz
800Ω (16V at 20mA)
90Ω (short-circuit detection at < 50Ω)
> 1MΩ
Under range = 1mA
Over range = 24mA (load ≤ 520Ω)
<40µA peak-to-peak
Better than 20µA
< 1.0µA/°C
Settles within 200µA of final value within 100ms
HART®
Green: power indication
70mA at 24V dc
1.6W at 24V
V
Field wiring state
Normal
Open-circuit
Short-circuit
o
=28V I
o
=93mA P
EUROPE (EMEA)
AMERICAS
ASIA PACIFIC
E-mail: enquiry@mtl-inst.com
o
=651mW U
MTL5549
< 0.9mA
< 0.9mA
< 6.0V
Tel: +44 (0)1582 723633
Tel: +1 281 571 8065
Tel: +65 6 487 7887
Web site: www.mtl-inst.com
m
= 253V rms or dc
MTL5549Y
< 0.5mA
< 6.0V
N.A.
Fax: +44 (0)1582 422283
Fax: +1 281 571 8069
Fax: +65 6 487 7997
The given data is only intended as a product description and should not be re-
garded as a legal warranty of properties or guarantee. In the interest of further
technical developments, we reserve the right to make design changes.
Hazardous area
Terminal
11
12
13
14
1
2
4
5
8
9
Function
Output –ve (Ch 1)
Output +ve (Ch 1)
Output –ve (Ch 2)
Output +ve (Ch 2)
Input –ve (Ch 2)
Input +ve (Ch 2)
Input –ve (Ch 1)
Input +ve (Ch 1)
Supply –ve
Supply +ve
Safe area
EPS5549/49Y-3
Apr 2009
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MTL5549 Summary of contents
Page 1
... Process controllers with a readback facility can detect open or short circuits in the field wiring: if these occur, the current taken into the terminals drops to a preset level. The MTL5549Y is very similar to the MTL5549 except that it provides open circuit detection only (i.e. no short-circuit detection) ...
Page 2
MTL5500 SERIES COMMON SPECIFICATION Please go to our website at www.mtl-inst.com for the latest information regarding safety approvals, certificates and entity parameters. Connectors Each MTL5500 unit is supplied with signal connectors, as applicable. When using crimp ferrules for the hazardous ...