Special functions

Isolating the instrument power, input and output from each other.
Panel design: LED red light as power indication, LED green light as output indication

Technical Data

Input Signal: standard thermal resistance Ω
Output Signal: 4~20 mADC or 1~5VDC
Accuracy: Range≥50℃±0.1%
Range＜50℃±0.2%
Load Resistance: 0~300Ω (at 4~20 mADC output )
Operating Conditions: environment temperature 0~50℃;
relative humidity<85%RH
Insulation Resistance: ≥50MΩ between power, input and output terminals
Insulation Intensity: 500V(AC) per min between power, input and output terminals
Power Voltage: 24VDC±10%
Intrinsically Safe Level: (ib) ⅡC
Rated Value of the Intrinsic Safe circuitry:
1. Max open-circuit voltage:≤4VDC
2. Max short-circuit current: ≤100mADC
Highest Permissible Voltage: 220VDC/220VAC(effective value)
Power Consumption: ≤1.25W (1Input 1 Output type);
≤2.5W (1Input 2 Output type)
Weight: 120g(approx.)

Structure

Mounting: Standard DIN35 Rails
Dimensions: 17.5×99×114.5mm(width×height×depth)

Din rail type temperature transmitter

Enviroment temp:-40 ~+85℃

Output singal:4~20mA

Protection class:IP66

Power supply:7.5V~45V

Accuracy:0.08%

Rail-mounted temperature transmitters characteristic

● Two-wire or three-wire RTD temperature signal input, isolated transmission output.

● Intelligent, on-site configuration can be set. Fixed RTD type and temperature range inputs are also available.

● With working power indicator.

● Single channel, one input and one output, input loop short-circuit protection.

● Plug-and-play terminal block, DIN rail card mounting.

Related Component Specifications

Core Circuit Components

Signal Processing Module: Adopts high-precision ADC conversion chip with high sampling rate to ensure accurate signal conversion; built-in anti-interference filter circuit to improve signal stability.

Isolation Module: Uses magnetic isolation technology to achieve full isolation of power supply, input and output, with isolation strength up to 500V(AC)/min, effectively blocking interference signal transmission.

Connection & Interface Components

Wiring Terminals: Plug-in terminal design for convenient wiring and low contact resistance; supports 0.5~2.5mm² wire access, adapting to regular industrial wiring.

Rail Clip: High-strength plastic material with excellent elasticity, firmly snapping onto DIN35 rail without loosening, featuring strong shock resistance.

Shell & Protection Components

Shell: Flame-retardant ABS material, high-temperature resistant and anti-aging, with IP66 protection level to effectively block water vapor and dust from entering internal circuits.

Indicators: Red power indicator and green output indicator with moderate brightness, facilitating on-site observation of equipment working status.

Application Scenarios

With core advantages of "high precision, easy installation, anti-interference, safety and reliability", this product is widely used in industrial production scenarios requiring temperature signal conversion and transmission, mainly including:

Industrial Automation Control Systems: Interfacing with PLC and DCS systems, converting temperature signals collected by thermal resistors into standard 4~20mA/1~5V signals, adapting to temperature monitoring of automation equipment such as machine tools and assembly lines.

Chemical and Petroleum Industry: In production sites containing flammable and explosive media (e.g., reactors, pipelines), the intrinsically safe design ensures stable temperature signal transmission, supporting safe production.

Power Industry: Temperature monitoring of transformers, switchgear and other equipment in power plants and substations; isolation design resists strong electromagnetic interference to ensure signal accuracy.

Intelligent Manufacturing and New Energy Industry: Temperature signal conversion of new energy vehicle battery packs and electronic component production equipment; compact size adapts to narrow spaces in control cabinets.

HVAC and Refrigeration Industry: Temperature control of central air conditioning and cold chain equipment; wide operating temperature range and high protection level adapt to diverse indoor and outdoor environments.

Metallurgy and Machinery Manufacturing Industry: Temperature monitoring of heat treatment furnaces, gearboxes and other equipment; high-precision transmission ensures stable control of process temperature.

Product Advantages

Efficient Installation and Maintenance: Quick snap-on DIN35 rail mounting and plug-in terminals simplify wiring; modular design facilitates later inspection and replacement, reducing equipment downtime.

Outstanding Anti-Interference Capability: Full isolation design + filter circuit enables stable operation in electromagnetic complex industrial sites with undistorted signal transmission, no need for additional anti-interference devices.

Comprehensive Safety Protection: IP66 protection + intrinsically safe certification + short-circuit protection, multi-dimensionally ensuring safety from environmental protection, hazardous scenario adaptation to equipment self-protection.

Strong Adaptability and Flexibility: Compatible with multiple thermal resistance inputs, supporting on-site configuration and customized settings; wide-voltage power supply models adapt to different power supply conditions, no need for separate procurement for different scenarios.

High Cost-Effectiveness and Long Durability: Balancing high precision and low power consumption, long service life and low maintenance cost; compact design saves control cabinet space, indirectly reducing equipment deployment costs.

Frequently Asked Questions

Which thermal resistance models does the product support? Is pre-matching required?

Answer: Supports mainstream standard thermal resistance models such as Pt100 and Pt1000. You can choose the "on-site configurable type" to set the thermal resistance type and range by yourself, or inform the manufacturer in advance to customize the "fixed type". No additional adaptation components are needed, and it can be used out of the box.

How to judge whether the product is working normally?

Answer: Quickly judge through indicators: ① Red LED always on → normal power supply; ② Green LED always on or flashing → normal output signal; ③ Indicators not lit → check if the power supply is normal and wiring is firm; ④ Abnormal output signal → check the thermal resistance wiring and type matching, or restart the device for reconfiguration.

What are the differences between the intrinsically safe type and the regular type? How to choose?

Answer: The core difference lies in adaptation to hazardous scenarios: the regular type is suitable for conventional industrial environments; the intrinsically safe type (ib)ⅡC complies with explosion-proof standards and can be used in hazardous areas containing flammable and explosive media. The choice should be determined according to whether the operating environment is an explosive hazardous area; the intrinsically safe type must be selected for hazardous scenarios.

What wiring precautions should be taken during installation?

Answer: ① Strictly distinguish between power supply, input and output terminals to avoid reverse connection or short circuit; ② Ensure correct polarity for thermal resistance wiring, and pay attention to shielding layer grounding for 3-wire wiring to reduce interference; ③ Control the wire cross-section within 0.5~2.5mm² to avoid signal attenuation due to excessively thin wires; ④ Ensure the clip is firmly snapped when installing on the rail to avoid loosening caused by vibration.

What to do if the product has output signal drift?

Answer: ① Check if the power supply voltage is stable (must be within ±10% of the rated voltage); ② Confirm if the thermal resistance probe is damaged or wiring is loose; ③ If caused by environmental interference, add shielded wires or adjust the installation position away from strong electromagnetic sources; ④ Re-calibrate the range through the on-site configuration function; contact the manufacturer for maintenance if the problem persists.

Can it be used outdoors or in humid environments?

Answer: Yes. The product has an IP66 protection level with good waterproof and dustproof performance, and can be directly used outdoors or in humid scenarios. However, long-term immersion in liquids should be avoided, and the wiring connections should be properly sealed to prevent water vapor from entering the terminals.