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eyc-tech PHD330 Industrial Differential Pressure Transmitter

eyc-tech PHD330 Industrial Differential Pressure Transmitter

eyc-tech PHD330 Industrial Differential Pressure Transmitter

Product catalog summary
Introduction
The eyc-tech PHD330 is an industrial differential pressure transmitter designed for precise pressure measurement in industrial environments. It utilizes a piezoresistive differential pressure sensor and features a robust aluminum alloy housing with an IP65 protection rating.

Applications
This device is suitable for exhaust air treatment, differential pressure monitoring, airflow monitoring, and air handling unit flow applications.

Features
- Measurement range: ±50 to ±10,000 Pa
- Analog output with RS-485 communication
- Square root function for air velocity and airflow conversion
- DIP switch for range and function adjustments
- LCD display option

Specifications
  • Measuring element: Piezoresistive differential pressure sensor
  • Output: 4-20 mA / 0-10 V / RS-485
  • Accuracy: ±2.0% F.S.
  • Operating temperature: -20 to +80°C (non-display), 0 to +50°C (display)
  • Power supply: DC 24 V ±10% & AC 24 V ±10%
  • Protection: IP65, over-voltage, reverse polarity, short circuit

Piezoresistive Differential Pressure Principle
The transmitter uses hot-wire type differential pressure measurement technology, which calculates pressure differences by measuring airflow rates. This method ensures precise measurement of small pressure differences and maintains stability over time.

Pressure Unit Conversion Table
The document provides a conversion table for various pressure units, facilitating easy interpretation of measurements.

Flow Measurement with Pitot Tube
The eyc-tech AFMT Average Flow Measuring Tube (Pitot tube) is used in conjunction with the PHD330 to measure airflow based on the Bernoulli principle and flow continuity formula.

Dimensions and Installation
The document includes detailed dimensions and installation instructions, emphasizing the importance of correct probe orientation for accurate measurements.

Ordering Guide
Options for pressure range, installation type, output, and display are provided, along with ISO 9001 certification details.
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Catalog excerpts

eyc-tech PHD330 Industrial Differential Pressure Transmitter-1

Industrial Differential Pressure Transmitter Uses piezoresistive differential pressure sensor No flow through, pressure ports are not interconnected Differential pressure measurement range of ±50 ... ±10,000 Pa Aluminum alloy housing, IP65 protection rating Includes square root function for converting measurement into air velocity and airflow, and simultaneous display on the screen Provides analog output with RS-485 communication function DIP switch to adjust range and square root function The eyc-tech PHD330 industrial differential pressure transmitter uses a piezoresistive differential pressure sensor with a wide measurement range and multiple options. Its robust aluminum alloy housing effectively resists external environmental influences, ensuring stable and reliable measurements, making it particularly suitable for use in industrial environments. Exhaust air treatment / Differential pressure monitoring / Airflow monitoring / A

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eyc-tech PHD330 Industrial Differential Pressure Transmitter-2

Measuring element Measuring range Piezoresistive diff. pressure sensor, no flow-through Load resistance Signal connection Response time Display type Display range Digit height Accuracy Accuracy Temperature influence Measuring medium LCD Module with back light, Storage temperature Overvoltage protection Electrical connection Wall type Q=Air quantity (with eyc-tech AFMT) Electrical protection Current consumption Power supply double line character ■ Reverse polarity ■ Short circuit Pressure resistance Burst pressure Operating temperature -20 ... +80°C(Non-display) Operating humidity Aluminum alloy...

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eyc-tech PHD330 Industrial Differential Pressure Transmitter-3

| with the eyc-tech Pitot Tube Principle | eyc-tech PHD330 Industrial Differential Pressure Transmitter is built on the structure of piezoresistive differential pressure flow measure- ment, with eyc-tech AFMT Average Flow Measuring Tube(Pitot tube), based on the flow continuity formula (the law of conservation of mass) and the Bernoulli formula (the law of conservation of energy), the wind speed calculation formula is deduced to achieve an effective and accurate measurement. Flow rate formula 2 ρ Flow formula Δ P = Difference between total pressure and static pressure ρ (Dynamic pressure)(Pa) = Flow...

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eyc-tech PHD330 Industrial Differential Pressure Transmitter-4

M12x1 Screw thread (Connector) ※P1 / P2:Connected to Ø6 PVC / PTFE compressed air pipe Brown Black Gray White Blue Power supply *Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product. | Ordering Guide | Installation Electrical connection M : M12x1 connector *with 2m cable | Additional Option Test Report | For more detailed information please contact us. ■ISO 9001 Project Measurand level or range

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.