MTL4755ac for 3-wire RTDs.

The MTL4755ac is a 3-channel barrier designed particularly for use with 3-wire RTDs with earthed or floating bridges. As each loop

generally needs three barrier channels, a single module interfaces with one 3-wire RTD. It has a low end-to-end resistance of only

18Ω/channel to minimise span changes while two of the channels track within 0.15Ω (from –20 to +60°C) to minimise zero shift with

temperature. It is not designed to accept bussed power.

MTL4700 series

Product Code Description

MTL4700  MTL4700 Series Common Specification

MTL4706+  2ch - 2-wire 4/20mA & smart Tx

MTL4715+  4ch - 12V DC applications

MTL4722+  4ch - 18V DC applications  

MTL4728–  4ch - negative & floating supplies  

MTL4728+  4ch - digital or 4/20mA outputs

MTL4755ac  3ch - 3-wire RTD applications

MTL4760ac  2x2ch - two thermocouples/AC sensors/4-wire RTD

MTL4763Pac  3x2ch - strain-gauge bridges

MTL4778ac  2x2ch - 2-wire DC & AC systems

MTL4781+  4ch+1 - 4 switches + 1 supply

MTL4787+  2x2ch - multi-purpose inputs/outputs

MTL4787P+  2x2ch - hi-power multi-purpose inputs/outputs

MTL4788+  2x2ch - 4/20mA Tx

MTL4788R+  2x2ch - 4/20mA Tx + voltage output

MTL4796–  2x2ch - vibration probes

MTL4799  Dummy barrier