Dwyer Instruments MTL5541 Specifications
®
SERIES MTL5541 | GALVANIC BARRIER
FEATURES/BENEFITS
• Designed to mount on most standard DIN rails
• Approved for use in hazardous areas
APPLICATIONS
• Electrically isolates pressure and level transmitters from unregulated circuits for intrinsically
safe applications
DESCRIPTION
The Series MTL5541 Galvanic Barrier provides intrinsically safe isolation for communication
with Dwyer® transmitters approved for use in hazardous areas. This galvanic barrier
eliminates the need for a high integrity earth ground required when using shunt type diode
type safety barriers. DIN rail mounting and plug-in signal and power connectors simplify
installation and maintenance.
SPECIFICATIONS
Hazardous Area Input Signal range: 0 to 24 mA (including over-range); Transmitter voltage: 16.5 V at 20 mA.
Safe Area Output
Power Requirement 20 to 35 VDC.
Response Time Settles to within 10% of nal value within 50 µs.
Current Consumption 51 mA @ 24V.
Maximum Power Dissipation 0.7 W @ 24 VDC, 1.0 W @ 24 VDC.
Isolation
Transfer Accuracy at 68°F (20°C) Better than 15 µA.
LED Indicator Green: Power Indication.
Temperature Limits Operating: -6 to 140°F (-20 to 60°C); Storage: -40 to 176°F (-40 to 80°C).
Temperature Drift < 0.8µA/°C.
Humidity 5 to 95% RH.
Mounting T-section 35mm DIN rail (7.5 or 15mm) to EN 50022.
Terminals Accommodate up to 2.5 mm2 stranded or single-core.
Safety Description V
Weight 150 g.
Agency Approvals See table.
Signal range: 4 to 20 mA; Under/over-range: 0 to 24 mA; Load resistance: 0 to 360Ω @ 24 mA, or 0 to 450Ω @
20 mA; Current sink: 600Ω max.; Maximum Voltage Source: 24 VDC; Output resistance: > 1 MΩ.
250 V RMS, tested at 1500 V RMS minimum, between safe- and hazardous-area terminals; 50 V between safe-
area circuits and power supply.
o= 28 V, Io= 93 mA, Po= 651mW, Um= 253 RMS or DC.
dwyer-inst.com
DWYER INSTRUMENTS, INC.
T: 219-879-8000 | F: 219-872-9057 | info@dwyermail.com
800-872-9141
®
DIMENSIONS WIRING DIAGRAM
A
A
SAFE AREAHAZARDOUS AREA
41/64 [16.27]
4-11/32
[110.33]
HAZARDOUS
REA TERMINAL
4-3/32 [103.98]
SAFE ARE
TERMINAL
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
SERIES
MTL5541 - Galvanic barrier
ACCESSORIES
Model Description
A-360 Aluminum DIN rail 1 m
MTL5541
4-20 mA
Com
Tx+
Input
MTL5541 MTL5541S
I
I
20 TO 35 VDC
4-20 mA
VsVs+
Load
Load
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
DWYER INSTRUMENTS, INC.
T: 219-879-8000 | F: 219-872-9057 | info@dwyermail.com
dwyer-inst.com
800-872-9141
DS-MTL5541 | 3/18
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