This stainless steel PT100 sensor reads temperatures directly from a surface. It's a pasted-type sensor with a strong adhesive back. You can stick it right onto pipes, tanks, or machinery. It's a simple way to check temperature without drilling holes. Features and Benefits
- Adhesive Backing - It installs in seconds on flat or curved surfaces. This ensures good thermal contact for accurate data.
- 3-Wire RTD Configuration - It accounts for cable resistance. This gives more precise measurements than 2-wire sensors, especially with long cables.
- Waterproof Probe and Cable - The sealed stainless steel housing and PTFE-insulated wire allow use in wet or damp environments.
- Class A Accuracy - It measures temperatures from -50°C to 200°C. It has a high degree of precision for industrial needs. Applications
- It checks the temperature of pipes in HVAC and plumbing systems.
- It monitors the surface temperature of motors or electronic enclosures.
- It attaches to vessels and tanks to track the temperature of their contents.
Safety & Preparation
Always ensure power is disconnected to any associated equipment before working with sensors or wiring. This Surface PT100 Sensor is a precision sensor designed for accurate temperature measurement. It is a 3-wire configuration. The sensor is waterproof and features a stainless steel material construction. It does not include a battery and is available with cable lengths of 1m, 2m, 3m, or 5m.
Identify standard RTD Values
An RTD (Resistance Temperature Detector) sensor, like this PT100, measures temperature by correlating resistance with temperature. A PT100 sensor has a resistance of 100 ohms at 0°C. As the temperature increases, so does the resistance. For accurate readings, ensure your controller or measurement device is calibrated for PT100 values. Consult your controller's manual for its specific input range.
How to Test by Wire Configuration
Testing your RTD sensor ensures it is functioning correctly and provides accurate readings to your controller. This Surface PT100 Sensor is a 3-wire configuration. Understanding the different wiring methods is crucial for proper installation and troubleshooting. This sensor is designed for pasted surface end mounting.
A. 2-Wire RTD
A 2-wire RTD uses two wires to connect the sensor to the controller. One wire carries the excitation current, and the other returns the signal. The resistance measured includes both the sensor resistance and the resistance of the lead wires. This can introduce inaccuracies, especially with longer cable lengths. This product is a 3-wire configuration, not 2-wire.
B. 3-Wire RTD (Most Common)
This Surface PT100 Sensor is a 3-wire RTD. This configuration is the most common for industrial applications because it compensates for lead wire resistance. Two wires are used to measure the sensor resistance, and a third wire measures the resistance of one of the lead wires. The controller then subtracts this lead wire resistance from the total, providing a more accurate temperature reading.
Material: Stainless Steel. Cable Length: 1m, 2m, 3m, 5m. Mounting Type: Pasted Surface End. Product Type: PT100 Sensor. Sensor Type: RTD. Wire Configuration: 3-Wire. Cable Length Options: 1m, 2m, 3m, 5m. Probe Dimensions: 6mm x 30mm (typical, varies by model). Material: Stainless Steel. Sheath Material: 304 Stainless Steel. Temperature Measurement Range: -50°C to +200°C (typical). Temperature Coefficient (α): 0.00385 Ω/Ω/°C. Waterproof Rating: Waterproof. Insulation Resistance: >100 MΩ at 20°C. Mounting Type: Pasted Type Surface End. Precision: High Precision. Product Type: PT100 RTD Temperature Sensor. Resistance at 0°C (R0): 100 Ω. Response Time: <5 seconds (in water). Sensor Element: PT100. Wiring Configuration: 3 Wire. Q: How accurate is this PT100 sensor? A: This is a Class A sensor, which is a high-accuracy classification. At 0°C, its tolerance is plus or minus 0.15°C, making it very precise for surface temperature readings.. Q: How is this sensor supposed to be mounted? A: It's a 'pasted type' sensor, which means it's designed to be glued directly to the surface you want to measure. You would typically use a thermal epoxy to ensure a good connection for accurate heat transfer.. Q: Is the cable safe to use in a wet or humid environment? A: Yes, the cable assembly is waterproof. This protects the three internal wires from moisture, so you can use it in damp locations or where condensation might form without affecting the reading.. Q: What's the warranty period for this temperature sensor? A: We provide a one-year warranty on this sensor. It covers any failures that occur because of a manufacturing defect in the sensor head or the cable.. Q: You offer different cable lengths. Does a longer cable make the reading less accurate? A: No, the accuracy of the sensor itself remains the same. It uses a 3-wire design specifically to compensate for the added electrical resistance from a longer cable, so your measurements stay consistent..