Isolated DIN Rail Mounting Universal Input 4~20mA Transmitter

As low as £175.20 £146.00
Only %1 left
Code
TXDU2.

Maximum 5 characters

Maximum 5 characters

Microprocessor based, fully linearised DIN rail mounting transmitters with universal 2-wire 4~20mA output (loop power) and universal inputs (RTD, Thermocouple, Millivolts, Milliamps, Voltage, Potentiometer).

Brand image

The TXDU2 DIN rail mounting isolated transmitters are microprocessor based and fully linearised.

As standard they feature a universal 2-wire, 4~20mA output (loop power) and universal input which accepts the following:

  • RTD (Pt100 or Pt1000)
  • Thermocouple (Types K, J, T, N, E, R, S, B)
  • Millivolts (mV)
  • Milliamps (mA)
  • Voltage (V)
  • Potentiometer

Factory set as 3-wire Pt100 input, range 0...100°C.

The units are loop powered, 10-36 V DC and can be supplied pre-ranged to suit your application requirements. Alternatively they can be easily configured using the TX-USB configuration kit. Simply install the software (which is available for free download from our website), connect the USB configuration module and plug the lead into the transmitter. The software will then provide the necessary prompts.

Features

  • Microprocessor based and fully linearised
  • Universal input
  • Universal 2-wire 4~20mA output (loop power)
  • Accepts RTD, thermocouple, Millivolts, Voltage, Potentiometer input
  • Factory set as 3-wire Pt100 input, 0...100°C (can be easily configured)

Pre-ranged Options (if required)

Note: requested temperature range must fall within minimum/maximum range for an input.

Input Type Minimum Temperature Maximum Temperature
Thermocouple Type K -200°C +1372°C
Thermocouple Type J -100°C +1200°C
Thermocouple Type T -200°C +400°C
Thermocouple Type N -180°C +1300°C
Thermocouple Type E -100°C +1000°C
Thermocouple Type R -50°C +1760°C
Thermocouple Type S -50°C +1760°C
Thermocouple Type B 0°C +1820°C
Pt100 3-wire -200°C +850°C
Pt1000 3-wire -200°C +850°C
More Information
Product Extra Information

Specification (Common)

Output 2-wire, 4~20mA (loop powered)
Power Supply 10-36V DC
Isolation Test Voltages Between input/output: 3750V AC for 1 minute
Output Load Resistance 700 Ω at 24V DC (50 Ω/V above 10V DC)
Maximum Output Currrent Limited to < 28mA (emission & immunity)
Accuracy < ±0.03% FSO typical
Ambient Drift < ±0.003%/°C FSO typical
Noise Immunity 125dB CMRR average (2.0kV DC limit)
R.F. Immunity <1% effect FSO typical
Reponse Time 400ms typical (10-90% 300ms typical)
USB Programmable Zero 0 to ±99% of the span (Potentiometer input N/A)
Operating Temperature -20°C to +85°C
Storage Temperature -20°C to +85°C
Operating Humidity 5-85% RH max (non-condensing)
Mounting 35mm symmetrical DIN rail
Dimensions 20mm (W) x 79mm (H) x 68mm (D)
EMC Compliance Emissions (EN 61326), Immunity (EN 61326), Safety (EN 61010-1)

RTD Input Specification

Input Pt100 or Pt1000 DIN 3-wire type (2-wire can be used with offset calibration)
Sensor Current 0.15mA nominal
Lead Wire Resistance Pt100: 10Ω/wire max.
Pt1000: 5Ω/wire max.
0.02% FSO offset error per Ω of lead resistance
Accuracy ≤ 0.1deg;C (0°C to +100°C)
≤ 0.3deg;C (-200°C to +0°C; +100°C to +850°C)
USB Programmable Span -200°C to +850°C
Sensor Break Output Drive Function high upscale/low downscale
Linearity (Pt100) 0.02% FSO for span inputs ≤ +200°C
0.1% FSO for span inputs ≤ +850°C
Linearity (Pt1000) 0.02% FSO for span inputs ≤ +200°C
0.2% FSO for span inputs ≤ +520°C

Thermocouple Input Specification

Thermocouple Types K, J, T, N, E, R, S, B
Input Impedance 1MΩ min
Lead Resistance 100Ω max
Cold Junction Compensation -20°C to +95°C
CJC Error < ±1°C
Accuracy Types K, J, T, N, E: < ±1°C
Types R, S, B: < ±2°C
Temperature Drift Types K, J, T, N, E: < ±0.05°C
Types R, S, B: < ±0.2°C
Sensor Break Output Drive Function high upscale/low downscale

Current Input Specification

Field Programmable Span 1µA-24mA DC
Input Resistance 10 Ω
Maximum Over-Range 50mA DC continuous
Linearity and Repeatability < ±0.02% FSO typical

Voltage Input Specifications

USB Programmable Span 100mV to ±10V DC (bipolar)
Input Resistance 300k Ω min
Maximum Over-Range 60V DC continuous
Linearity and Repeatability < ±0.02% FSO typical

Potentiometer Input Specifications

Potentiometer Input 3-wire potentiometer
Excitation Voltage 1.2V DC
Potentiometer Resistance 0-2KΩ low pot, 0-1MΩ high pot
Field Programmable Zero 0-90% of the span
Field Programmable Span 0.1-100%
Linearity and Repeatability < ±0.02% FSO typical
Thermosense Direct is a trading division of Thermosense Limited. Copyright © 2025 Thermosense Limited. All Rights Reserved.