Temperature Sensors - RTD (Resistance Temperature Detector)
Temperature Sensors - RTD (Resistance Temperature Detector)
Definition:
Resistance Temperature Detectors (RTDs) are precision temperature sensors that measure temperature by correlating the resistance of the RTD element with temperature. RTDs are known for their high accuracy, stability, and repeatability, making them ideal for industrial, laboratory, and process control applications where precise temperature monitoring is critical. The most common RTD type is the platinum RTD (PT100 or PT1000), which offers excellent linearity over a wide temperature range.
Types of RTD Temperature Sensors:
1. Wire-Wound RTDs: Features a coil of wire wrapped around a ceramic or glass core, providing high accuracy and durability.
2. Thin-Film RTDs: Constructed by depositing a thin layer of platinum on a ceramic substrate, offering a compact design and cost-effective performance.
3. Probe-Style RTDs: Designed for direct immersion in liquids, gases, or solids, available in various sheath materials (stainless steel, Inconel) for harsh environments.
4. Surface-Mount RTDs: Used for measuring the temperature of flat surfaces, commonly applied in HVAC and electronics.
5. Flexible RTDs: Built with bendable elements for applications requiring conformability to irregular surfaces.
Buying Recommendations:
- Accuracy & Calibration: Choose RTDs with appropriate tolerance classes (e.g., Class A, B) based on your precision requirements.
- Temperature Range: Ensure the RTD covers your operational range (typically -200 C to +850 C for platinum RTDs).
- Construction Material: Select sheath and wiring materials (e.g., stainless steel, Teflon) compatible with your environment (corrosive, high-pressure, etc.).
- Output & Compatibility: Verify if the sensor integrates with your system (2-wire, 3-wire, or 4-wire configurations for minimized lead resistance errors).
- Certifications: Look for industry-standard certifications (IEC 60751, ASTM E1137) for guaranteed performance.
RTD temperature sensors are a reliable choice for applications demanding long-term stability and precision. Evaluate your technical needs and environmental conditions to select the optimal RTD type.
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P1K0.0805.2P.C.S
SMD 0805
USW4455
RTD 100 OHM 0.06% NPT PROBE
USW4460
RTD 1K OHM 0.06% PROBE
P0K5.0805.2ST.B.S
SMD 0805
P0K5.0805.2P.B.S
SMD 0805
P0K5.0805.2P.A.S
SMD 0805
P0K1.0805.2P.C.S
SMD 0805
P0K5.0805.2ST.C
SMD 0805
USW4456
RTD 1K OHM 0.06% NPT PROBE
HEL-717-T-0-36-00
TEMPERATURE SENSOR-CERAMIC CASE
P0K5.0805.2P.C
SMD 0805
USW4465
RTD 100 OHM 0.06% FLANGED PROBE
USW4463
RTD 100 OHM 0.06% PLASTIC PROBE
USW4451
RTD 100 OHM 0.06% PROBE
USW4461
RTD 100 OHM 0.06% RING LUG
USW4459
RTD 100 OHM 0.06% PROBE
USW4462
RTD 1K OHM 0.06% RING LUG
HEL-711-U-1-18-00
TEMPERATURE SENSOR
TD4S-GM
SENSOR RTD 1.85KOHM CYLINDER
USW4453
RTD 100 OHM 0.06% PROBE