Cảm biến đo nhiệt độ Rosemount PT100

1. What is a Rosemount PT100?

The Rosemount PT100 is a platinum resistance temperature detector (RTD) manufactured by Emerson’s Rosemount brand, designed for high-accuracy temperature measurement in industrial processes.

• Key Features:
  • PT100 Principle: 100Ω at 0°C, with linear resistance change as temperature varies (e.g., 138.5Ω at 100°C).
  • Accuracy Class: Class A (±0.15°C at 0°C) or Class B (±0.3°C at 0°C).
  • Industrial Certifications: ATEX, IECEx, SIL 2/3 (for hazardous areas).

2. Key Advantages of Rosemount PT100 Sensors

2.1 High Accuracy & Long-Term Stability

• Superior linearity compared to thermocouples, ideal for ±0.1°C precision in pharmaceuticals and food processing.
• Advanced platinum wire coating minimizes oxidation, ensuring long-term reliability.

2.2 Rugged Industrial Design

• Protection Rating: IP67/IP68 (dustproof/waterproof).
• Vibration Resistance: Tested up to 10G (suitable for oil & gas applications).
• Wetted Materials: 316L stainless steel, Hastelloy (corrosion-resistant).

2.3 Flexible Signal Output Options

• Direct resistance output (2/3/4-wire configurations to reduce lead errors).
• Integrated transmitters (e.g., Rosemount 214C with 4-20mA + HART/FF protocols).