Compair Temperature Sensor 100010778 for Screw Air Compressors
Temperature Sensor Product Overview
A temperature sensor is a device that measures thermal energy in a system, converting it into an electrical signal (e.g., voltage, resistance) for monitoring, control, or safety. These sensors ensure precise temperature management in industrial, automotive, medical, and consumer applications.
Key Functions
-
Accurate Measurement
-
Tracks real-time temperature with high precision.
-
-
Process Control
-
Maintains optimal conditions (e.g., HVAC, manufacturing).
-
-
Safety Shutdown
-
Triggers alarms or halts systems during overheating/freezing.
-
-
Energy Efficiency
-
Optimizes heating/cooling cycles to reduce waste.
-
Common Sensor Types
| Type | Principle & Use Case | Pros & Cons |
|---|---|---|
| Thermocouple (T/C) | Two dissimilar metals generate voltage proportional to ΔT. Wide range, rugged. | ✅ Fast, high-temp (up to 2300°C) ❌ Lower accuracy |
| RTD (Pt100/Pt1000) | Platinum wire’s resistance changes with T. Linear, stable. | ✅ High accuracy (±0.1°C) ❌ Slower, costly |
| Thermistor | Ceramic/polymer resistance varies exponentially with T. High sensitivity. | ✅ Precise in narrow ranges ❌ Fragile, self-heating |
| Semiconductor (IC) | Silicon-based (e.g., LM35, DS18B20). Digital/analog output. | ✅ Easy integration, low-cost ❌ Limited range (-55°C to 150°C) |
| Infrared (IR) | Detects thermal radiation from surfaces. Non-contact. | ✅ Fast, remote sensing ❌ Affected by emissivity |
Parameters Table
Standard specifications for industrial temperature sensors:
| Parameter | Description | Common Values/Options |
|---|---|---|
| Measurement Range | Operational temperature limits. | -200°C to +2300°C (T/C Type B) -50°C to +150°C (IC) |
| Accuracy | Max. deviation from true value. | ±0.1°C (RTD), ±1°C (T/C), ±0.5°C (IC) |
| Response Time | Time to reach 63% of final reading (τ). | 0.1–10s (fast IR), 1–50s (RTD/T/C) |
| Output Signal | Electrical interface. | mV (T/C), Ω (RTD), 0–10V, 4–20mA, I²C, SPI |
| Probe Material | Sensing tip/jacket construction. | Stainless steel 316, Inconel, ceramic, PFA |
| Stability/Drift | Long-term accuracy change per year. | ±0.05°C/yr (RTD), ±0.2°C/yr (T/C) |
| Self-Heating Error | Heat generated by sensor affecting readings (esp. RTDs/thermistors). | <0.1°C (low-power IC), 0.5–2°C (RTD at 1mA) |
| Immersion Depth | Minimum probe insertion for accurate readings. | 10–15x probe diameter (general rule) |
| IP Rating | Ingress protection (dust/water resistance). | IP65 (water-resistant), IP67 (submersion) |
| Certifications | Compliance standards. | IEC 60751 (RTD), ASTM E230 (T/C), RoHS, ATEX |
Applications
-
Industrial: Furnace control, chemical reactors, machinery health.
-
Automotive: Engine/cabin temp, battery thermal management (EVs).
-
Medical: Patient monitors, sterilizers, lab equipment.
-
HVAC: Air/water temp regulation.
-
Food Safety: Cold chain monitoring, cooking processes.
-
Consumer Electronics: Smartphones, appliances, wearables.
Selection Guidelines
-
Range & Accuracy:
-
Use T/Cs for extreme heat (>400°C); RTDs for precision (±0.1°C); ICs for cost-sensitive apps.
-
-
Environment:
-
Choose corrosion-resistant probes (e.g., Inconel) for chemicals; IP67 for moisture.
-
-
Response Needs:
-
Opt for thin-film RTDs/IR for rapid changes; avoid thermistors in dynamic systems.
-
-
Output Compatibility:
-
4–20mA for noisy industrial settings; digital (I²C) for embedded systems.
-
-
Calibration:
-
Prioritize sensors with low drift for critical processes (e.g., pharma).
-
⚠️ Critical Notes:
Grounding/Noise: Shield T/C wires to prevent EMI interference.
Thermal Contact: Ensure proper probe adhesion to surfaces.
Calibration: Recalibrate annually per ASTM E2847 or OEM guidelines.
Specialized Sensors:
-
Fiber Optic: Immune to EMI (e.g., power plants).
-
Wireless IoT: For remote monitoring (LoRaWAN/NB-IoT).
-
Surface-Mount: PCBs/microelectronics.
Always verify specifications against application requirements. Consult datasheets for derating at extreme conditions.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.