TxIsoRail Isolated DIN Mount 4-20mA Module

TxIsoRail Isolated DIN Mount 4-20mA Module

SKU: SIG-005

Fully isolated DIN rail mount signal conditioner takes thermocouples, Pt100 sensors, 0 to 50 mV or 0 to 10 V in and outputs 4 to 20 mA. Programmable zero and span. Loop powered.

  • Manufacturer: Novus
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The TxRail modules are a family of DIN rail mount 4 to 20 mA signal conditioners which can be used for the most common temperature applications. One single model can be configured to accept several thermocouple types and Pt100 RTD temperature sensors as well as accepting 0 to 50 mV, 0 to 10 V, 0 to 20 mA and 4 to 20 mA signals.

Note: Using the 0 to 10 V input requires moving a jumper inside the unit.

The input type, zero and span are configured using a USB TxConfig Interface Cable (not included) and the Windows TxConfigurator software.

We can program the modules in small quantities for a small fee if you don't wish to purchase the TxConfig Interface cable.


  • Linearised output and cold junction compensation for thermocouples
  • Programmable working range
  • Manual zero (offset) adjustment by two keys on the front of the unit
  • Programmable burnout upscale or downscale sensor failure protection
  • Programming software comes with the TxRail units, but requires either a serial or USB programming cable. The latest version of the TXConfig software can also be downloaded directly from the Novus website.

Power supply: 12 to 35 VDC

Output: Two wire loop powered 4-20 mA or 20-4 mA

Programmable input: 

  • Thermocouples: J, K, T, E, N, R, S, B
  • Pt100 RTD
  • 0-50 mV, 0-10 V, 4-20 mA


  • Thermocouples: ±0.25% of Full scale ±°C
  • Pt100 RTD and 0-50 mV: ±0.15% of Full scale 

Isolation: 1000 VAC between sensor input and output loop

Manual zero adjustment: Can be done with 2 front keys 

Temperature effect: 0.003% of Maximum span

Selectable mains filter: 60 or 50 Hz

PC interface: TxConfig windows based software

Sensor failure protection: Programmable burnout upscale or downscale 

Operating temperature: -40 to 85 °C

Dimension: 72 x 78 x 19 mm

    • SKU
    • Weight
      0.15 kg
    • Dimensions (L x W x H)
      10 x 8 x 10 cm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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