TxIsoRail is a fully programmable isolated temperature transmitter, also suitable as a signal conditioner. It works with Pt100 and thermocouple industrial sensors, is DIN rail mounted, works with the vast majority of industrial temperature sensors, can also convert a 0-10V DC signal to 4-20mA, accepts the same input signal type it outputs (e.g. 4-20mA in, 4-20mA out), and is compatible with the new Novus SigNow software. Units can be easily user-configured for input type and working range using a TxConfig-USB interface cable connected to a PC USB port — or leave a note on your order with the configuration information and we'll ensure the device is set up correctly before despatch.
Why use isolated transmitters?
Isolated transmitters protect electrical instruments by eliminating ground loop effects and substantially reduce undesirable interferences and instabilities in sensor measurements. They can act as a barrier between expensive PLC input/output modules and field wiring.
TxIsoRail is a two-wire signal conditioning device that delivers 1000Vac isolation between input and output. It can be fully programmed by the end user for different industrial applications — one single model can be configured to accept several thermocouple types and Pt100 RTDs, as well as 0 to 50mV, 0-20mA and 4-20mA field signals. The flexibility of in-the-field configuration makes it a one-model-fits-all signal conditioning and isolator module.
✅ 3 Year Manufacturer Warranty — backed by our UK-based technical support
Novus TxIsoRail Datasheet Download
Novus TxIsoRail Manual Download
Technical Details
Programmable input: thermocouples type J, K, T, E, N, R, S, B, Pt100 RTD, 0-50mV, 0-20mA, 4-20mA and 0-10V
User programmable working range. 2-wire loop powered 4-20mA or 20-4mA output
2 or 3-wire Pt100 input with linearized output. Cold junction compensation for thermocouples
TxConfig Windows configurator software; configuration with a PC via TxConfig interface
Manual zero (offset) adjustment via 1 front key on the TxIsoRail
Power supply: 12 to 35 Vdc (4-20mA); 18 to 30 Vdc (0-10Vdc)
Accuracy: Pt100, 0-50mV and 0-20mA ±0.20% of full scale. Thermocouples ±0.25% of full scale ±1°C
Temperature effect: 0.003% of maximum span/°C. Working temperature: -40 to +85°C
Sensor failure protection: programmable burnout upscale or downscale
Dimensions: 72mm (H) x 78mm (D) x 19mm (W)
Isolation: 1000Vac between sensor input and 4-20mA output loop. Selectable mains filter: 60Hz or 50Hz
Frequently Asked Questions
Can I get this preconfigured before delivery?
Yes — leave a note on your order with the configuration information and we'll ensure the device is set up correctly before despatch.
Can it convert a 0-10V signal to 4-20mA?
Yes — this variant outputs 4-20mA and can convert a 0-10V input signal to that range.
Is there a 0-10V output version instead?
Yes, see our 0-10V output TxIsoRail.
Industry Applications
- Multi-Sensor Signal Conditioning — one model configurable for thermocouples, Pt100, and standard voltage/current signals.
- PLC Input Protection — isolates expensive PLC I/O modules from field wiring transients.
- Panel Building — DIN rail mounting for compact control panel integration.