DIN-Rail Universal Temperature Transmitter (Isolated)
Provides analog output options including 4–20 mA, with DIN 35 mm rail mounting for industrial signal conversion and isolation.
A. Product Overview
This DIN-Rail Universal Temperature Transmitter (Isolated) is a multi-signal converter designed for industrial panels and automation systems where different sensor and standard signals must be converted into reliable analog outputs. It supports RTD (Pt100, Cu50), thermocouples (S, R, B, K, N, E, J, T), resistance signals, and DC standard signals including voltage (0–5 V, 0–10 V, 1–5 V, 0–100 mV) and current (0–10 mA, 0–20 mA, 4–20 mA).
The device is PC configurable for input type, range and output mode, and includes built-in cold junction compensation (CJC) for accurate thermocouple measurement. It mounts on a DIN 35 mm rail and provides input/output/power isolation to reduce ground loops, improve signal integrity and enhance safety in control panel installations.
B. Working Principle
The transmitter accepts a selected input (RTD, thermocouple, resistance or DC standard signal) and converts it into a proportional analog output based on the configured range. For thermocouple measurement, cold junction compensation is applied to correct reference junction effects.
Output can be set for current or voltage depending on the receiving instrument requirements:
Current output: 4–20 mA, 0–10 mA
Voltage output: 1–5 V, 0–10 V
The unit is designed with defined insulation resistance and dielectric isolation strength between input, output, power supply and ground, supporting stable performance in electrically noisy environments and multi-loop control panels.
C. Key Applications
DIN-rail conversion of RTD and thermocouple temperature signals to analog outputs such as 4–20 mA
Conversion of DC standard signals (mV / V / mA) into current or voltage outputs for instrumentation loops
Isolated signal conversion to prevent ground loops and improve measurement stability
Control panels, skids and automation cabinets requiring DIN 35 mm mounting and compact width
Retrofit and replacement of existing signal conditioners/transmitters in process and utility systems
D. Why Industries Use This Product
Industrial plants and OEM panel builders use universal isolated DIN-rail transmitters to standardize multiple input types into common analog outputs, reducing the need for different models in inventory and simplifying wiring and commissioning. Isolation between input/output/power/ground helps reduce interference, improves signal separation and supports reliable operation where different instruments share power supplies or grounding networks.
Performance is supported by stated specifications including accuracy at 25°C, fast response time, and defined output load requirements to match receiving equipment. The transmitter is suitable for continuous measurement, signal conditioning and control system integration in automation environments.
E. Suitable Buyers
OEMs building control panels and skids requiring DIN-rail signal conversion with isolation
EPC contractors standardizing RTD/TC and DC signals into analog outputs in plant projects
Maintenance and utilities teams replacing DIN-rail transmitters and signal conditioners
Plant engineering and procurement teams managing standardization and retrofit programs using DIN 35 mm devices
Technical Input/Output Summary
Supported inputs
RTD: Pt100 (-199 to 600°C), Cu50 (-50 to 150°C)
Thermocouples:
S (0–1600°C), R (0–1600°C), B (200–1800°C), K (0–1300°C), N (0–1300°C), E (-200–850°C), J (0–650°C), T (-200–400°C)Resistance signal: 0–400 Ω
DC standard signals: 0–5 V, 0–10 V, 1–5 V, 0–100 mV, 0–10 mA, 0–20 mA, 4–20 mA
Output options
Current: 4–20 mA, 0–10 mA
Voltage: 1–5 V, 0–10 V
FAQ SECTION
1. What input signal types are supported by this transmitter?
It supports RTD and thermocouple inputs, resistance signals, and DC standard signals including 0–5 V, 0–10 V, 1–5 V, 0–100 mV, 0–10 mA, 0–20 mA and 4–20 mA. Resistance input of 0–400 Ω is also supported.
2. What output ranges are available?
Current outputs: 4–20 mA and 0–10 mA. Voltage outputs: 1–5 V and 0–10 V.
3. Which thermocouple types and ranges are supported?
S (0–1600°C), R (0–1600°C), B (200–1800°C), K (0–1300°C), N (0–1300°C), E (-200–850°C), J (0–650°C) and T (-200–400°C).
4. Which RTD types and ranges are supported?
Pt100 (-199 to 600°C) and Cu50 (-50 to 150°C).
5. Is cold junction compensation included?
Yes, built-in cold junction compensation is included for thermocouple measurement.
6. How is the transmitter configured?
Configuration is performed by PC.
7. What load ranges are required for the outputs?
For current output, permissible loads include ≤ 250 Ω and ≤ 500 Ω. For voltage output, input impedance should be ≥ 250 kΩ for 1–5 V and ≥ 500 kΩ for 0–10 V.
8. What power supply options are supported?
85–265 VAC or 22–28 VDC, with 1–4 W power consumption.
9. What are the environmental and mounting details?
Operating conditions are 0–60°C and 0–90% RH (non-condensing). It mounts on DIN 35 mm rail and dimensions are 23 × 85 × 103 mm.
10. What isolation specifications are provided?
Insulation resistance is ≥ 100 MΩ at 500 VDC. Isolation strength is 1000 VDC for 1 minute and 1000 VAC for 1 minute between input/output/power and ground.
11. What performance metrics are listed?
Accuracy is ±0.1% / 0.2% at 25°C. Response time is ≤ 0.5 s, power-on stabilization is ≤ 3 s, and load effect is ±0.1% / 250 Ω.