Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Walfront RTD Pt100 Temperature Sensor Probe. Please read this manual thoroughly before using the product to ensure safe and efficient performance.
Image: The Walfront RTD Pt100 Temperature Sensor Probe, showing the stainless steel probe, 1/2" NPT thread, and the 2-meter cable with three wires ending in spade terminals.
Product Features
- High Temperature Ceramic Beads Insulation: Provides insulation between the wire and the protective tube, preventing electrical interference and ensuring accurate temperature measurement.
- Durable Construction: Features a stainless steel inner thread base and tinned copper wire for stable performance.
- High Sensitivity and Stability: Designed for thermal accuracy and consistent readings.
- Resistant Properties: High temperature resistant, waterproof, and oil-proof for versatile applications.
- Wide Application: Commonly used in industrial settings, including injection molding processes.
Specifications
| Attribute | Detail |
|---|---|
| Model | RTD Pt100 Temperature Sensor Probe |
| Temperature Range | -50 to 300 ℃ (-58 to 572 ℉) |
| Probe Material | Stainless Steel |
| Thread Size | 1/2" NPT |
| Wire Configuration | 3-wire |
| Cable Length | 2 meters (6.6 ft) |
| Probe Diameter | 6mm (0.23") |
| Probe Length | 50mm (2") |
| Item Weight | 0.1 Kilograms (3.53 ounces) |
| Manufacturer | Walfront |
| UPC | 736691416010 |
Image: Diagram illustrating the dimensions of the RTD Pt100 sensor, including the 1/2" NPT thread size, 6mm probe diameter, 50mm probe length, and 2-meter cable length.
Setup and Installation
Proper installation is crucial for accurate readings and longevity of the sensor. Follow these steps carefully:
- Prepare the Mounting Point: Ensure the location for the probe has a compatible 1/2" NPT threaded port. The port should be clean and free of debris.
- Thread the Probe: Carefully screw the sensor probe into the 1/2" NPT port. Use appropriate thread sealant if necessary to ensure a watertight and secure connection, especially in liquid or high-pressure environments. Do not overtighten.
- Wiring Connection: The Pt100 sensor is a 3-wire type. Connect the wires to your temperature instrument (e.g., PLC, temperature controller) according to its wiring diagram. Typically, one wire is for the positive terminal, and two wires are for the negative terminal to compensate for lead wire resistance. Refer to the instrument's manual for specific wiring instructions.
Image: Example wiring diagrams for connecting the RTD Pt100 sensor to a temperature instrument. It shows connecting the blue terminal to the negative pole and the red terminal to the positive pole for two common instrument types.
Important: Ensure all electrical connections are secure and insulated to prevent short circuits or electrical interference. Consult a qualified electrician if you are unsure about the wiring process.
Operating Instructions
Once installed and wired, the RTD Pt100 sensor operates by providing a resistance change proportional to temperature. Your connected instrument will interpret this resistance to display the temperature.
- Power On: Activate the temperature instrument or system to which the sensor is connected.
- Monitor Readings: Observe the temperature readings on your instrument. Ensure they are within the expected range for your application.
- Calibration (if required): If your application demands high precision, periodic calibration of the entire measurement system (sensor + instrument) may be necessary. Refer to your instrument's manual for calibration procedures.
Image: Close-up views of the sensor's internal components, highlighting the sensitive sensor (internal copper material), waterproof probe (argon ARC welding), and thin film resistor for accurate measurement.
Maintenance
The Walfront RTD Pt100 sensor is designed for durability and requires minimal maintenance. However, regular checks can extend its lifespan and ensure continued accuracy.
- Cleaning: Periodically clean the exterior of the probe, especially if it's exposed to contaminants. Use a soft cloth and mild cleaning solution. Avoid abrasive materials that could damage the stainless steel.
- Inspect Connections: Regularly check the wiring connections for any signs of corrosion, looseness, or damage. Ensure the cable insulation is intact.
- Environmental Protection: While the probe is waterproof and oil-proof, protect the cable and connection points from excessive mechanical stress, sharp objects, or extreme temperatures beyond its operating range.
Image: The silver-plated shielded PTFE wire, illustrating its soft, bend-resistant, oil-resistant, and waterproof properties, contributing to the sensor's durability.
Troubleshooting
If you encounter issues with your RTD Pt100 sensor, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate Readings | Incorrect wiring; Sensor contamination; Instrument calibration needed; Electrical interference. | Verify wiring against instrument manual; Clean probe surface; Calibrate instrument and sensor; Ensure proper grounding and shielding. |
| No Reading / Open Circuit | Loose or disconnected wires; Damaged cable; Faulty sensor. | Check all connections; Inspect cable for visible damage; Test sensor resistance (consult a professional if unsure). |
| Fluctuating Readings | Electrical noise; Poor connection; Sensor not fully immersed (if applicable). | Improve shielding/grounding; Secure all connections; Ensure probe is correctly positioned in the medium. |
If troubleshooting steps do not resolve the issue, contact Walfront customer support for further assistance.
Warranty and Support
Walfront products are manufactured to high quality standards. For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Walfront website. Keep your purchase receipt as proof of purchase for warranty claims.
Walfront Official Store: Visit Walfront Store on Amazon
