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Product Details:

Place of Origin: UK
Brand Name: MTL
Certification: CE
Model Number: MTL5541A/AS

Payment & Shipping Terms:

Minimum Order Quantity: 10 pcs
Packaging Details: carton
Delivery Time: within 4 week
Payment Terms: T/T payment
Supply Ability: 300 pcs
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Detailed Product Description

MTL4541A/AS current repeater 4/20mA passive i/p for HART® transmitters

MTL5541A provides an input for separately powered 4/20mA transmitters and also allows bi–directional transmission of HART communication signals superimposed on the 4/20mA loop current. Alternatively, MTL5541AS acts as a current sink for a safe-area connection rather than driving a current into the load.


See also common specification

Number of channels


Location of transmitter

Zone 0, IIC, T4–6 hazardous area if suitably certified

Div.1, Group A, hazardous location

Hazardous area input

Signal range: 4 to 20mA

Under/over-range: 1.0 to 21.5mA

Input impedance for HART signals

at terminals 1, 2: > 230Ω

Maximum input volt drop

at terminals 1, 2: < 6.6V

i.e. a transmitter load of 330Ω at 20mA

Safe-area output

Signal range: 4 to 20mA

Under/over-range: 1.0 to 21.5mA

Safe-area load resistance (MTLx541A)

Conventional transmitters: 0 to 360Ω

Smart transmitters:   250Ω ±10%

Safe-area load (MTLx541AS)

Current sink: 600Ω max.

Maximum voltage source: 24V DC

Safe-area circuit output resistance: > 1MΩ

Safe–area circuit ripple

< 50µA peak-to-peak up to 80kHz

Transfer accuracy at 20°c

Better than 20µA

Temperature drift

< 1µA/°C

Response time

Settles within 200µA of final value after 20ms

Communications supported


Contact Details

Contact Person: Ms. Wendy

Tel: 86-21-58111208

Fax: 86-21-58111208

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