Uxcell PT100 Type 400°C Thermocouple Sensor: Instruction Manual

1. Introduction

This manual provides essential information for the safe and effective use of your Uxcell PT100 Type 400°C Thermocouple Sensor. Please read these instructions carefully before installation and operation. This sensor is designed for accurate temperature measurement in industrial and scientific applications, working effectively with compatible temperature controllers.

2. Safety Information

Always observe the following safety precautions to prevent injury or damage to the device:

• Electrical Safety: Ensure all power is disconnected from the temperature controller and associated equipment before making any electrical connections. Improper wiring can lead to electrical shock or damage to the sensor and controller.
• Temperature Limits: Do not expose the sensor to temperatures exceeding its specified maximum of 400°C. Exceeding this limit can cause permanent damage to the sensor and lead to inaccurate readings.
• Physical Handling: Handle the probe and cable with care. Avoid sharp bends or excessive force on the cable, especially near the probe and terminal connections, to prevent internal wire damage.
• Proper Installation: Ensure the probe is securely installed in the measurement environment to prevent accidental dislodgement during operation.
• Qualified Personnel: Installation and maintenance should be performed by qualified personnel familiar with electrical systems and temperature measurement devices.

3. Product Overview

The Uxcell PT100 Thermocouple Sensor is a resistance temperature detector (RTD) designed for precise temperature monitoring. It features a robust probe, a flexible spring section, and fork terminals for easy connection.

Figure 1: Main view of the Uxcell PT100 Thermocouple Sensor, showing the metal probe, braided cable, and three color-coded fork terminals (red, blue, blue).

Key Components:

• Probe: The metallic tip containing the PT100 sensing element, designed for immersion into the medium being measured.
• Flexible Spring Section: Allows for bending and positioning of the probe, enhancing adaptability in various installations.
• Cable: Connects the probe to the terminals, featuring internal fiberglass insulation and external metal shielding for durability and signal integrity.
• Fork Terminals: Provide a secure and convenient connection point to a temperature controller or data acquisition system.

4. Specifications

Refer to the following technical specifications for your PT100 sensor:

Figure 2: Uxcell PT100 Thermocouple Sensor illustrating key dimensions and temperature rating.

5. Setup and Installation

Follow these steps for proper installation of your PT100 sensor:

1. Prepare the Environment: Ensure the area where the sensor will be installed is clean and free from obstructions. Verify that the temperature range of the environment is within the sensor's operating limits.
2. Mount the Probe: Insert the probe into the desired measurement point. The flexible spring section allows for some adjustment in positioning. Ensure the probe is securely fixed to prevent movement during operation.
3. Connect to Controller:
   • Power Off: Before making any connections, ensure your temperature controller or data acquisition system is powered off and disconnected from its power source.
   • Identify Terminals: The PT100 sensor typically uses three wires for connection (two for the resistance element, one for compensation). Refer to your temperature controller's manual for specific wiring diagrams for a 3-wire PT100 input.
   • Secure Connections: Connect the fork terminals of the sensor to the corresponding input terminals on your temperature controller. Ensure connections are tight and secure to prevent signal loss or intermittent readings.
4. Verify Installation: Double-check all physical and electrical connections before proceeding.

6. Operating Instructions

Once the PT100 sensor is correctly installed and connected to a compatible temperature controller, follow these general operating guidelines:

1. Power On: Restore power to your temperature controller.
2. Controller Configuration: Configure your temperature controller to recognize a PT100 (RTD) input type. Set any necessary parameters such as measurement range, alarm points, or control logic according to your application's requirements.
3. Monitor Readings: Observe the temperature readings displayed on your controller. Allow sufficient time for the sensor to stabilize and provide accurate measurements, especially after initial power-up or changes in the measured environment.
4. Calibration (if necessary): If precise accuracy is critical, periodic calibration of the entire measurement system (sensor + controller) may be required. Refer to your controller's manual for calibration procedures.

7. Maintenance

The Uxcell PT100 sensor is designed for durability and requires minimal maintenance. However, adhering to these practices can prolong its lifespan and ensure continued accuracy:

• Regular Inspection: Periodically inspect the sensor probe, cable, and connections for any signs of physical damage, corrosion, or wear.
• Cleaning: If the probe becomes contaminated with debris or residue from the measured medium, gently clean it using appropriate methods that will not damage the probe material. Ensure the probe is dry before re-immersion.
• Connection Integrity: Ensure all electrical connections remain tight and free from oxidation. Loose connections can lead to inaccurate readings or intermittent operation.
• Storage: When not in use, store the sensor in a clean, dry environment, protected from extreme temperatures and physical stress.

8. Troubleshooting

If you encounter issues with your PT100 sensor, consider the following common troubleshooting steps:

• No Reading or Erratic Readings:
  • Check all electrical connections for tightness and correct wiring according to your controller's manual.
  • Verify that the temperature controller is correctly configured for a PT100 (RTD) input.
  • Inspect the cable for any visible damage or breaks.
  • Ensure the probe is properly immersed in the medium being measured.
• Inaccurate Readings:
  • Confirm the sensor is operating within its specified temperature range.
  • Check for any buildup or contamination on the probe tip that might affect heat transfer.
  • Consider if the sensor or controller requires calibration.
  • Ensure there are no strong electromagnetic interference sources near the sensor cable.
• Sensor Not Responding:
  • Power cycle the temperature controller.
  • Disconnect and reconnect the sensor to ensure a proper connection.
  • If possible, test the sensor with a known good controller or test the controller with a known good sensor to isolate the fault.

9. Warranty and Support

For information regarding warranty coverage, technical support, or replacement parts for your Uxcell PT100 Thermocouple Sensor, please refer to the purchase documentation or contact Uxcell customer service directly. Keep your purchase receipt as proof of purchase.

For further assistance, visit the Uxcell Store on Amazon.