You can get correct temperature readings in wet places with this submersible PT100 sensor. The platinum resistance thermometer sits inside a waterproof stainless steel case. It's good for projects where it touches liquids directly. This PT100 RTD probe works well for brewing, aquaponics, or lab jobs. Features and Benefits
- Platinum RTD Element - It stays more stable and gives the same results over time compared to common thermistors.
- Fully Submersible Design - The sealed probe lets you put this waterproof PT100 temperature sensor right into water tanks.
- 3-Wire Configuration - This helps cancel out wire resistance for a clearer signal. It's especially useful with longer wires.
- Broad Temperature Range - It measures from -50°C up to 200°C. This covers uses from cooling to boiling. Applications
- Checking mash or wort temperature for brewing.
- Seeing the water temperature in aquariums or hydroponic setups.
- Tracking chemical temperatures during science tests.
Safety & Preparation
Before working with any electrical components, including this precision sensor, always ensure the power supply to the system or controller is disconnected. Use appropriate personal protective equipment. Handle the waterproof silicone cable with care to prevent damage. This product is a temperature sensor, and proper handling ensures its high precision accuracy. Always consult the accompanying equipment’s manual for specific installation guidelines before connecting the RTD sensor.
Identify standard RTD Values
An RTD sensor, or Resistance Temperature Detector, operates on the principle that its resistance changes predictably with temperature. This product is a PT100/PT1000 RTD sensor, indicating its resistance at 0°C is either 100 ohms or 1000 ohms respectively, depending on the specific model. The probe material is Platinum Resistance Detector. Identifying the correct RTD value is crucial for accurate temperature readings when connecting to a controller.
How to Test by Wire Configuration
To check an RTD sensor, you will measure its resistance using a multimeter. Ensure the multimeter is set to the ohms (Ω) range. The specific testing method depends on the wire configuration of the RTD sensor. This particular temperature sensor features a 3-wire configuration. Understanding the wiring allows for accurate troubleshooting and verification of the sensor's functionality before or after installation.
A. 2-Wire RTD
A 2-wire RTD sensor has two wires connected to the Platinum Resistance Detector. To test, connect the multimeter leads to each of the two wires. The reading will represent the total resistance of the sensor element plus the resistance of both lead wires. This configuration is the simplest but can be less accurate over longer distances due to lead wire resistance affecting the measurement. This product is not a 2-wire RTD.
B. 3-Wire RTD (Most Common)
This Sensor Detector is a high-precision 3-wire RTD. In a 3-wire RTD, two wires are connected to one side of the Platinum Resistance Detector, and the third wire to the other side. To test, measure the resistance between the two wires that go to the same side of the element; this should be close to zero ohms. Then, measure the resistance between one of those wires and the third wire. This reading will be the sensor's resistance, with lead wire resistance compensated for by the controller, providing high precision.
Probe Material: Platinum Resistance Detector. Cable Material: Silicone. Accuracy: High Precision. Product Type: Temperature Sensor. Sensor Type: PT100/PT1000 RTD. Wire Configuration: 3-Wire. Cable Length: 1 meter. Probe Diameter: 5 mm. Probe Length: 50 mm. Cable Material: Silicone. Probe Material: Stainless Steel (SUS304/SUS316). Temperature Range: -50°C to +200°C. Temperature Coefficient: 0.00385 Ω/Ω/°C. Waterproof Rating: IP67. Accuracy Class: Class B. Insulation Resistance: >100 MΩ at 20°C. Nominal Resistance at 0°C: 1000 Ω. Resistance Type: Platinum Resistance Detector. Response Time: < 5 seconds (in water). Sensor Type: PT1000 RTD. Wiring Configuration: 3-Wire. Q: What are the physical dimensions of the probe and how long is the cable? A: The stainless steel probe section is 50mm long and has a 6mm diameter. It comes with a 1-meter-long silicone cable attached.. Q: Why does this use a silicone cable instead of a cheaper PVC one? A: The silicone insulation handles a much wider temperature range, from freezing cold to 200°C, without cracking or melting. It stays flexible, which is really helpful during installation and in environments with temperature swings.. Q: I'm building a battery-powered logger. Is the PT1000 version a better choice? A: Yes, the PT1000 model is a great pick for battery-powered devices. Its higher resistance means it draws less current from your circuit than a standard pt100 sensor, which helps conserve power.. Q: What happens if I buy this and it's not right for my project? A: We have a 30-day return policy for any reason, so you can send it back if it doesn't fit your needs. It's also covered by a 1-year warranty for any functional failures.. Q: What's the real difference between the PT100 and PT1000 options? A: The main difference is their base resistance: the PT100 is 100 ohms at 0°C, and the PT1000 is 1000 ohms at 0°C. The PT1000 is often better for systems with very long wires because wire resistance has less of an effect on the reading..