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Understanding the AR 385-5: A Comprehensive Guide
When it comes to ceramic pressure sensors, the AR 385-5 model stands out as a reliable and efficient choice. This article delves into the details of this sensor, exploring its features, applications, and technical specifications.
Brand and Model Information
The AR 385-5 is a product from LC, a brand known for its high-quality sensors. This particular model is a ceramic pressure sensor designed for measuring both liquids and gases.
Measurement Range and Precision
With a measurement range of up to 1000 kPa, the AR 385-5 is capable of handling a wide variety of pressure levels. Its precision is exceptional, with an accuracy grade of 0.2, ensuring reliable and consistent readings.
Output Signal and Interface
The sensor outputs a 4-20 mA signal, making it compatible with a wide range of industrial systems. The interface size is 2027 mm, which is suitable for various installation requirements.
Key Features
Here are some of the key features that make the AR 385-5 a standout choice:
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Robust ceramic sensing diaphragm: The sensor is built with a durable ceramic material, ensuring long-lasting performance.
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Point and full-scale laser calibration: This ensures high accuracy and stability in the sensor’s readings.
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Excellent corrosion and wear resistance: The AR 385-5 is designed to withstand harsh environments, making it suitable for a wide range of applications.
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Shock and vibration resistance: The sensor is built to withstand harsh conditions, ensuring reliable performance even in the most demanding environments.
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Good linearity and repeatability: The sensor provides accurate and consistent readings, making it ideal for precise measurements.
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Wide operating temperature range: The AR 385-5 can operate in temperatures ranging from -40 to 130 degrees Celsius, making it suitable for a wide range of applications.
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Compact size and easy to encapsulate: The sensor’s small size and easy-to-use design make it ideal for integration into various systems.
Working Principle
The AR 385-5 operates on the principle of a piezoresistive effect. Pressure is directly applied to the ceramic diaphragm, causing it to deform slightly. Thick-film resistors are printed on the back of the diaphragm, forming a Wheatstone bridge. As the pressure changes, the resistance of the piezoresistors changes, resulting in a voltage signal that is proportional to the pressure and the excitation voltage. The sensor is laser-calibrated, ensuring high temperature and time stability.
Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 5-30 VDC (constant voltage) |
| Bridge Resistance | 11 K ± 20% |
| Measurement Range | 100KPa ~ |
Applications
The AR 385-5 is widely used in various applications, including:
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Process control
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Environmental control
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Hydraulic and pneumatic equipment
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Servo valves and actuators
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Chemical and petrochemical industries
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Instrumentation
In conclusion, the AR 385-5 ceramic pressure sensor is a versatile and reliable choice for a wide range of applications. Its exceptional features, combined with its precise measurements and wide operating temperature range, make it an ideal choice for any project that requires accurate pressure sensing.