MTL4649/Y ISOLATING DRIVER two-channel, MTL4649/Y isolator.

MTL4649/Y ISOLATING DRIVER two-channel, MTL4649/Y isolator.

Model: MTL4649/Y

Categories: MTL4600 range

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PRODUCT DESCRIPTION

MTL4649/Y ISOLATING DRIVER two-channel, for 4–20mA, HART® valve positioners with line fault detection.

The MTL4649 accepts 4/20mA floating signals from a controller to drive 2 current/pressure converters (or any other load up to 800Ω). For HART valve positioners, the module also permits bi-directional transmission of digital communication signals. 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 MTL4649Y is very similar except that it provides open circuit detection only (i.e. no short-circuit detection).



MTL4600 range

Product Code Description

Digital Input

MTL4604    1ch DI relay output + LFD alarm + phase reversal

MTL4610    4ch DI solid-state output

MTL4611    1ch DI relay output  

MTL4614    1ch DI relay output + LFD alarm

MTL4614D  1ch DI switch/prox input, dual output relay

MTL4616    2ch DI relay output Datasheet 

MTL4617    2ch DI relay output + LFD alarm

MTL4619H  110Vac/125Vdc digital input

MTL4619L  24V/48V digital input

Digital Output

MTL4621    Loop powered solenoid driver  

MTL4623    Solenoid driver with LFD

MTL4623L  Loop powered solenoid driver + LFD  

MTL4623R  Solenoid driver with reverse LFD

MTL4624    Switch operated solenoid driver

MTL4624S  Switch operated solenoid driver, 24V override

MTL4626    2ch switch operated relay

MTL4627    24Vdc 250mA digital output

MTL4628    relay output

Analogue Input

MTL4641    1ch 2/3 wire Transmitter repeater  

MTL4641A  1ch Transmitter repeater, passive input

MTL4641AS  1ch Transmitter repeater, passive input, current sink

MTL4641S  1ch 2/3 wire Transmitter repeater, current sink

MTL4644    2ch 2/3 wire Transmitter repeater

MTL4644A  2ch Transmitter repeater, passive input

MTL4644AS  2ch Transmitter repeater, passive input, current sink

MTL4644D  2/3 wire transmitter repeater, dual output  

MTL4644S  2ch 2/3 transmitter repeater, current sink

Analogue Output

MTL4646    1ch 4-20mA smart isolating driver + LFD

MTL4646Y  1ch 4-20mA smart isolating driver + oc LFD

MTL4649    2ch 4-20mA smart isolating driver + LFD

MTL4649Y  2ch 4-20mA smart isolating driver + oc LFD

Temperature Input

MTL4675    1ch Temperature converter with alarm  

MTL4676-RTD  2ch Temperature converter, RTD

MTL4676-THC  2ch Temperature converter, THC

Pulse Input

MTL4632    1ch pulse isolator, digital or analogue output



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