PT100 Explosion Proof Dust Temperature Transmitter with Digital Display

The PT100 explosion proof dust temperature transmitter is designed for continuous temperature monitoring in industrial dust collection systems, exhaust ducts, and powder-processing equipment. Combining a PT100 platinum resistance sensor, stainless steel probe, and local digital display, this industrial temperature transmitter helps operators monitor process temperatures and identify abnormal heating before it leads to equipment damage or production interruptions.

With a standard 4–20 mA output, the transmitter can integrate with compatible PLC, DCS, and SCADA control systems for real-time temperature monitoring. Its IP65-rated enclosure protects against dust and water ingress under suitable installation conditions, while the threaded probe supports convenient installation in existing duct connections.

The standard measuring range is -200°C to +500°C / -200°F to +400°F, with an M27×2 mounting thread and customizable probe dimensions. It is suitable for selected applications involving baghouse dust collectors, flour mills, coal-handling systems, cement production, and industrial ventilation equipment. Explosion-proof suitability must be verified against the actual product certification and hazardous-area classification before installation.

Industrial dust collection systems can experience abnormal temperature increases caused by hot process gases, friction, equipment faults, or changing operating conditions. Without reliable temperature monitoring, operators may discover problems only after production is interrupted or equipment is damaged.

Standard temperature sensors may also suffer from dust ingress, moisture exposure, vibration, loose mounting connections, and unstable readings. These issues increase maintenance workloads and make it harder to identify abnormal operating conditions promptly.

In flour mills, coal-handling facilities, and other combustible-dust environments, incorrect sensor selection can create additional safety risks. Facilities need a temperature measurement solution that matches their process conditions, control-system requirements, and hazardous-area classification.

The PT100 digital temperature transmitter combines resistance temperature measurement with signal conversion and local display. Operators can check temperature readings on-site, while the 4–20 mA output enables remote monitoring through compatible industrial control equipment.

The stainless steel probe provides a practical measurement interface for industrial ducts and equipment. Its IP65 enclosure helps protect against dust and moisture ingress when correctly installed and maintained.

For dust collection system manufacturers, industrial equipment suppliers, and factory maintenance teams, this configuration supports easier integration into temperature monitoring and process control systems. Where combustible dust is present, select the transmitter only after verifying its applicable explosion-protection certification, installation requirements, and suitability for the specific dust hazard.

Please confirm the final specifications, electrical configuration, and explosion-protection documentation for the selected model before ordering.

• Baghouse dust collectors: Monitor inlet or outlet duct temperatures to help identify abnormal operating conditions.

• Flour mills and grain processing: Measure temperatures in dust extraction and powder-handling systems.

• Coal handling and pulverizing: Support temperature monitoring in selected coal dust collection pipelines.

• Cement plants: Monitor process temperatures in suitable raw-material and dust collection ducts.

• Chemical and pharmaceutical manufacturing: Measure temperatures in compatible powder-processing and extraction equipment.

• Industrial ventilation systems: Integrate temperature feedback into exhaust and process monitoring systems.

• Woodworking and biomass processing: Monitor temperatures in suitable dust extraction installations, subject to hazard assessment.

The PT100 sensing element changes electrical resistance as temperature changes. The transmitter converts this signal into a corresponding 4–20 mA output for a compatible control system. Meanwhile, the integrated digital display allows operators to read the measured temperature locally.

The probe is inserted into the duct or equipment through a suitable mounting connection. Correct insertion depth and positioning help obtain representative process measurements. The enclosure and probe provide environmental protection appropriate to their specified ratings, while the control system can use temperature readings for monitoring, alarms, or process responses.

Step 1: Confirm the temperature range. Check normal operating temperatures, expected peaks, and the maximum allowable sensor temperature.

Step 2: Verify hazardous-area requirements. Identify the applicable gas or dust zone, required protection method, and certification requirements. Do not assume a gas explosion-proof marking automatically confirms suitability for combustible dust.

Step 3: Select probe dimensions. Confirm the mounting thread, probe diameter, and insertion depth against the existing duct connection.

Step 4: Check electrical compatibility. Verify the 4–20 mA input, power supply, wiring arrangement, and display configuration.

Step 5: Confirm environmental conditions. Consider pressure, vibration, moisture, dust loading, and chemical compatibility before selecting materials and installation accessories.

Contact our team with your operating temperature, duct dimensions, required probe length, and hazardous-area classification for model selection and a quotation.

1. What is a PT100 temperature transmitter?

A PT100 transmitter uses a platinum resistance temperature detector and converts its measurement into a standard industrial signal, such as 4–20 mA.

2. Can it connect to a PLC or DCS?

Yes. The 4–20 mA output is suitable for compatible PLC, DCS, or SCADA inputs, subject to correct wiring and configuration.

3. Is it suitable for flour dust or coal dust areas?

Potentially, depending on the actual certification, dust characteristics, zone classification, and installation conditions. Verify the documentation before use.

4. Can the probe length be customized?

Yes. The standard insertion depth is 80 mm, and custom lengths can be specified to suit the installation.

5. What is the maximum measuring temperature?

The stated PT100 version measures from -200°C to +500°C / -200°F to +400°F. Confirm operating limits for the specific model and installation.

6. What information is needed for a quotation?

Please provide the quantity, temperature range, mounting thread, probe diameter and length, output requirements, destination country, and applicable hazardous-area classification.