Explosion Proof Pressure Transmitter LCD Display Diffusion Silicon Pressure Transmitter

Explosion Proof Pressure Transmitter LCD Display Diffusion Silicon Pressure Transmitter

1. Introduction
ML2000W series diffusion silicon pressure transmitter adopts the advanced transducer as sensitive element. It applies shielding and eliminating process of new hit-resistant capacitance, RF, over current and strong voltage signal. The subsequent circuit has higher stability and capacity of resisting disturbance because the peripheral circuit layout and component selection are more reasonable than American TI (BB) company operational amplifier.

2. Working Principle:

Based on the piezoresistive effect of single crystal cinnamon, an elastic component is fabricated by advanced processing technology in a specific direction. Four strain resistors with equal resistance are fabricated by integrated circuit technology in their proper positions and connected to the Wheatstone Bridge. When a constant voltage (current) is applied to the bridge, when there is pressure (differential pressure) on the elastic element, the transmitter outputs a voltage signal linearly proportional to the pressure given by the medium, and then amplifies the voltage signal through an electronic circuit and converts it into a standard two-wire signal. According to its working principle, the main source of temperature drift is the temperature drift of the sensor part. Next, the working principle and characteristics of the sensor part of the pressure transmitter will be analyzed.

3.Technical Parameter

• Accuracy: ±0.2% or ±0.1%
• Measuring Range: -0.1KPa~0~100KPa~40MPa (Max. 100MPa)
• Ambient Temperature: -20~85℃
• Medium Temperature: -20~90℃
• Storage Temperature: -40~85℃
• Relative Humidity: <95%
• Output: 4-20mA
• Power Supply: 24VDC or 12VDC
• Stability: Better than 0.1%FS Per Year
• Overload Limit: 150%~300%
• Upgrade Features:

①　Power supply non polar connection(Only analog circuit, 24VDC power supply)
②　Field or Outside lightning prevention design

3. Configuration

Melan Measurement & Control Instruments is located in Shanghai City. It is a high-tech manufacturer specialized in the design, development, manufacturing and sale of measurement and control instruments.

Our products are widely used in various fields, including electricity, chemical industry, metallurgy, brewing, oil and gas, textile, water conservancy, environmential protection, etc.

We own independent-courtyard modemized manufacturing workshops and an open office building. Melan has accumlated production and management experience in instruments from European and American and domestic famous companies.

We own first-class talent team, and all the products have reached advanced level at home and abroad. We provide our customers with complete and professional test control solutions and high-tech and high-quality products.

Melan is your reliable friend and partner. We are willing to try our best as dedication and perfection as motivation.

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