1. Introduction
This manual provides essential information for the safe and effective use of the CERTEON WRNT-035 K-Type Temperature Sensor. Please read this manual thoroughly before installation and operation, and keep it for future reference.
2. Product Overview
The WRNT-035 is an industrial-grade K-type thermocouple temperature sensor designed for accurate and stable temperature measurement in harsh environments. It features a 304 stainless steel probe with a sealed waterproof structure and a Teflon-coated, oil-resistant cable. The non-grounded probe design minimizes electrical interference, making it suitable for manufacturing, chemical processing, laboratory testing, and general industrial temperature monitoring applications.
Key Features:
- Sensor Type: K-Type Thermocouple (default), E-Type, PT100 (optional)
- Probe Material: 304 Stainless Steel
- Cable: Teflon-coated, waterproof, oil-resistant, corrosion-resistant, shielded wire
- Probe Structure: Non-grounded insulated tip
- Sealing Method: Dual-slot rolling with adhesive sealing
- Applications: Industrial, Laboratory, Food Processing, Automation
3. Specifications
| Feature | Description |
|---|---|
| Power Supply | Self-powered thermocouple (no external power required) |
| Rated Voltage | Passive sensor output, millivolt signal proportional to temperature |
| Probe Material | 304 Stainless Steel |
| Probe Diameter | Default: 4mm; Options: 3mm, 5mm, 6mm |
| Probe Length | Default: 30mm; Options: 10mm to 200mm |
| Cable Type | Waterproof, Corrosion-resistant Shielded Wire |
| Cable Length | Default: 1m; Options: 0.5m to 20m (depending on configuration) |
| Connector Type | Default: U-Type Terminal; Optional: Aviation plug or Yellow plug |
| Sensor Type | K-Type Thermocouple (default); Optional: E-Type, PT100 |
| Temperature Range | K-Type: 0 to 200°C; Pt100: -50 to 200°C |
| Battery Included | No |
4. Setup
4.1. Preparation
- Sensor Type Verification: Verify that the sensor type (K-Type, E-Type, or PT100) matches the input type of your temperature controller. A K-type thermocouple must be connected to a K-type compatible controller.
- Configuration Check: Confirm the required probe length, cable length, and connector type before installation.
- Pre-Installation Inspection: Inspect the probe and cable for any signs of mechanical damage (e.g., kinks, cuts, bends) before use. Do not use if damage is found.
4.2. Installation
- Probe Placement: Carefully insert the stainless steel probe into the measurement point. Ensure full contact with the target medium for accurate readings.
- Cable Securing: Secure the cable to prevent tension or sharp bending, especially near the probe transition point, to avoid damage.
- Electrical Connection: Connect the two wires from the sensor to the corresponding thermocouple input terminals on your controller. Observe polarity: typically, the red terminal connects to the positive input and the blue terminal to the negative input for K-type thermocouples.
5. Operation
5.1. Power On and Stabilization
- Controller Activation: Power on your temperature controller or data acquisition system.
- Stabilization Time: Allow sufficient time for the sensor and controller to stabilize. This ensures accurate and reliable readings.
- Temperature Range Check: Ensure that the measured temperature remains within the specified operating range of the sensor (e.g., 0-200°C for K-Type).
5.2. Data Reading
Read the temperature value directly from the connected temperature controller or data acquisition system. The sensor outputs a millivolt signal that is proportional to the temperature, according to standard thermocouple characteristics.
6. Maintenance
6.1. Storage
- Store the sensor in a dry, well-ventilated environment.
- Keep away from corrosive gases and high humidity when not in use.
6.2. Cleaning
- Clean the stainless steel probe with a soft, damp cloth after use.
- Pay special attention to cleaning if the probe has been exposed to oil or chemicals.
- Do not use abrasive materials or aggressive solvents for cleaning, as these can damage the probe or cable.
6.3. Inspection
- Inspect the cable insulation periodically for any signs of wear, cracks, or damage.
- If insulation damage is detected, replace the sensor immediately to ensure safety and accurate operation.
7. Precautions and Safety Warnings
7.1. General Precautions
- Temperature Range: Do not exceed the specified temperature range of the selected sensor type.
- Physical Stress: Avoid mechanical impact, excessive bending, or pulling of the cable.
- Polarity: Ensure proper polarity connection to prevent measurement errors.
- Immersion: Do not immerse the cable-to-probe transition joint beyond its sealing specification unless explicitly confirmed as fully submersible.
- Environment: Operate within appropriate environmental conditions and avoid exposure to strong electromagnetic interference sources.
- Battery: This product does not contain a battery.
7.2. Warning Information (EU Market Reference)
WARNING!
- High Temperature Hazard: The probe may become extremely hot during operation. Allow sufficient cooling time before handling.
- Risk of Burns: There is a risk of burns if touched during or immediately after high-temperature measurement.
- Installation: Installation must be performed by qualified personnel in industrial environments.
- Compatibility: Ensure compatibility between sensor type and control equipment to avoid malfunction.
- Children: Keep out of reach of children.
- Disposal: Proper disposal must follow WEEE directives for electronic waste.
Note: The above warning information is for reference only. Final warning language must comply with the official language requirements of the destination EU country.
8. Troubleshooting
If you encounter issues with your WRNT-035 sensor, consider the following:
- No Reading or Unstable Readings:
- Verify that the sensor type matches the controller input type.
- Check all electrical connections for proper polarity and secure contact.
- Ensure the probe is fully immersed or in good contact with the medium being measured.
- Inspect the cable for any damage or breaks.
- Confirm the temperature is within the sensor's specified range.
- Inaccurate Readings:
- Ensure the probe is clean and free from any buildup that might insulate it from the target medium.
- Check for strong electromagnetic interference in the operating environment.
- Allow sufficient stabilization time for the sensor and controller.
9. User Tips
- Stable Readings: For consistent and accurate temperature monitoring, ensure the sensor is correctly installed with proper polarity and full contact with the measurement medium.
- Environmental Awareness: Be mindful of the operating environment; avoid areas with excessive vibration or strong electrical noise that could affect sensor performance.
10. Warranty and Support
For warranty information, please refer to your purchase documentation or contact your seller directly. For technical support or inquiries, you may use the following contact details:
11. Compliance Disclaimer
This document is provided for product instruction purposes only. It does not constitute legal advice. The seller is responsible for ensuring compliance with destination market regulations.