Precise Control of Micro Differential Pressure: Solving Industrial Measurement Challenges

In industrial process control, HVAC systems, and clean environments, accurate measurement of micro differential pressure directly impacts system efficiency, safety, and energy consumption. Traditional transmitters often face issues such as large size, poor stability, and integration difficulty. Nexisense YD322-IN compact differential pressure transmitter solves these challenges with a compact design and high reliability.

Three Core Selling Points

• Excellent Stability: Annual drift ±0.1%FS/year, temperature compensation range -10~70°C, ensuring long-term consistency.

• High Precision and Anti-Interference: Analog response ≤500Hz, digital ≤5Hz, with industrial-grade circuit design to resist EMI.

• Easy Integration: Supports RS485 Modbus and 4-20mA output, compatible with PLC, DCS, and SCADA systems.

  
  

Overview

Nexisense compact differential pressure transmitter is designed for industrial automation and process control applications. It adopts a 316L stainless steel diaphragm, 304 stainless steel housing, and oil-filled core structure, suitable for liquid and gas differential pressure measurement.

The compact design ensures easy installation in limited spaces while delivering reliable pressure signals. With multiple output options and optimized temperature compensation, it reduces maintenance costs and enhances system reliability.

Core Advantages

Material and Structural Advantages
316L stainless steel diaphragm ensures compatibility with various media. The 304 stainless steel housing offers corrosion resistance. Seals use NBR, and the Hirschmann connector is ABS plastic. Vibration resistance reaches 10g (20~2000Hz), enabling stable operation under -40~85°C and up to 95% RH.

Algorithm Optimization and Stability
Built-in temperature compensation circuit controls drift within ±0.01%FS/°C. Stability reaches ±0.1%FS/year. Signal response ensures accurate performance under dynamic conditions.

Integration and Communication Support
Supports RS485 Modbus-RTU for networking and remote monitoring. Outputs include 4~20mA, RS485, and optional voltage outputs. Power supply: 12~36VDC.

Safety and Maintenance Design
Differential pressure measurement with optimized static pressure resistance. Lightweight design (~420g without display) allows easy installation. Recommended use with manifold valves.

Technical Specifications

Applications

1. HVAC systems: duct pressure monitoring and energy optimization

2. Cleanrooms: positive/negative pressure control

3. Medical isolation rooms: airflow direction monitoring

4. Industrial process control: gas/liquid differential pressure measurement

Installation and Wiring

Install without pressure or power. Use shielded cables and proper grounding. Recommended to install valve manifold. Avoid strong impact and incompatible media.

FAQ

Q1: What outputs are supported?
A: 4-20mA, RS485 Modbus, optional voltage outputs.

Q2: Is it stable for long-term use?
A: Yes, ±0.1%FS/year stability.

Q3: Installation precautions?
A: Install without pressure/power, use shielding and grounding.

Q4: How to select range?
A: Based on actual differential pressure requirements.

Q5: Modbus integration difficulty?
A: Easy, supports standard Modbus-RTU.

Q6: Suitable for harsh environments?
A: Yes, with proper material compatibility.

Conclusion

Nexisense YD322-IN compact differential pressure transmitter delivers reliable, high-precision measurement with excellent stability and integration flexibility, making it an ideal solution for industrial automation and building systems.