FRD Sensor FD820C Embedded Micro Differential Pressure Transmitter for Cleanroom & HVAC Systems
Product Details
In cleanrooms, HVAC systems, medical equipment, laboratories, semiconductor manufacturing, and industrial ventilation systems, accurate measurement of micro differential pressure is essential for environmental control, airflow management, and equipment operation stability.
The FRD Sensor FD820C Embedded Micro Differential Pressure Transmitter is specifically designed for low differential pressure measurement applications. It adopts high-sensitivity sensing technology and intelligent signal processing algorithms to accurately detect extremely small pressure variations.
In practical applications, factors such as temperature fluctuations, airflow disturbance, long-term operation, and installation conditions may affect micro differential pressure measurement accuracy, resulting in zero-point drift, unstable signals, and measurement deviations.
The FD820C utilizes temperature compensation technology, high-stability sensing components, and a compact embedded structure design to improve measurement stability and environmental adaptability, providing reliable micro differential pressure monitoring solutions for clean environments, HVAC systems, and automation equipment.
In cleanrooms, HVAC systems, laboratories, and precision equipment applications, small pressure variations can directly affect airflow direction, environmental stability, and equipment operating efficiency.
To address common challenges in micro differential pressure measurement, the FRD Sensor FD820C Embedded Micro Differential Pressure Transmitter provides accurate, stable, and reliable measurement solutions.
In cleanrooms and ventilation systems, differential pressure levels are usually very low. Conventional pressure sensors may have insufficient resolution or limited sensitivity when measuring small pressure changes, resulting in inaccurate data and affecting airflow control and pressure cascade management.
The FRD Sensor FD820C adopts high-sensitivity micro differential pressure sensing technology to accurately detect small pressure variations, improve measurement resolution and stability, and meet the requirements of clean environments and precision equipment for low differential pressure monitoring.
Changes in ambient temperature, seasonal variations, and equipment operating conditions can affect micro differential pressure transmitter stability, causing zero-point drift and increasing calibration requirements.
The FRD Sensor FD820C adopts intelligent temperature compensation technology to effectively reduce the influence of temperature variations on measurement performance, maintain stable output over long-term operation, and reduce maintenance frequency.
Traditional differential pressure transmitters are often larger in size, making installation inside HVAC equipment, air handling units, and automation systems more difficult due to limited space and complex layouts.
The FRD Sensor FD820C features a compact embedded design, allowing flexible installation inside equipment, saving installation space, and improving system integration efficiency.
Airflow disturbance, mechanical vibration, and environmental changes may cause micro differential pressure signal fluctuations, leading to incorrect control decisions and affecting equipment performance.
The FRD Sensor FD820C adopts optimized sensing structures and advanced signal processing technology to improve anti-interference capability, ensuring stable and reliable output signals for accurate feedback in automatic control systems.
During long-term operation, unstable micro differential pressure measurement performance may require frequent calibration and maintenance, increasing labor costs and affecting continuous system operation.
The FRD Sensor FD820C utilizes high-stability sensing components and reliable structural design to improve long-term operating reliability, reduce maintenance workload, and help users lower overall operating costs.
Modern cleanroom systems and smart building platforms require real-time pressure data acquisition and seamless integration with control systems such as PLC and BMS.
The FRD Sensor FD820C supports standard industrial signal output and can be easily integrated into automation systems, enabling real-time monitoring, data acquisition, and intelligent control.
| Parameter | FD820C | FD820CG |
|---|---|---|
| Range | 0-100Pa~2500Pa | Differential:0-50Pa～2500Pa,Humidity:0%～100%RH,Temperature:0℃～60℃ |
| Pressure Type | Differential Pressure | Differential Pressure |
| Overload Capacity | Allows overload pressure 2 times and destroys pressure 4 times the sensor range | Allows overload pressure 2 times and destroys pressure 4 times the sensor range |
| Accuracy | 0.5%F.S; 1.0%F.S(optional) | DP:0.5%F.S 1.0%F.S(optional)；Humidity:3%F.S(5%RH～95%RH), TEM:0.5%F.S |
| Long Term Stability | 0.2%F.S/Year | 0.2%F.S/Year |
| Operating Temperature | 0℃~60℃ | 0℃~60℃ |
| Power Supply | 16V~32VDC | 16V～28V DC(Recommend 24V DC) |
| Output Signal | 4mA~20mA DC,RS485+Relay | 4mA～20mA DC,1V ~ 5V DC,RS485(Optional),RS485+Relay |
| Protocol | MODBUS RTU | MODBUS RTU |
| Explosion-Proof | Ex ia IIB T6 Ga | Ex ia IIB T6 Ga |
| Ambient Temperature | Stainless Steel | Stainless Steel |
| Warranty Period | 12 months | 12 months |
FRD Sensor provides professional OEM & ODM customization services for the FD820C Embedded Micro Differential Pressure Transmitter, offering flexible measurement and system integration solutions based on customers’ specific application requirements.
With advanced micro differential pressure sensing technology, intelligent temperature compensation algorithms, and precision manufacturing capabilities, FRD Sensor meets the customized needs of cleanroom system integrators, HVAC manufacturers, automation equipment suppliers, and industrial customers.
Customization options include:
- Measurement range customization
- Output signal customization
- Installation structure optimization
- Communication interface configuration
- Product appearance and branding customization
FRD Sensor provides high-accuracy and high-stability micro differential pressure measurement solutions for various applications.
The FD820C supports customized solutions for different micro differential pressure measurement applications, including:
- Cleanroom differential pressure monitoring
- HVAC system pressure control
- FFU (Fan Filter Unit) monitoring
- Air filter differential pressure detection
- Laboratory ventilation systems
- Medical isolation environments
- Industrial equipment airflow monitoring
The FD820C supports multiple output options to meet different automation requirements:
- 4–20 mA output
- Voltage output
- RS485 communication (optional)
Compatible with:
- PLC control systems
- HVAC control systems
- Building Management Systems (BMS)
- Environmental monitoring platforms
Enabling real-time data acquisition and intelligent environmental control.
Based on different installation requirements, FRD Sensor provides:
- Embedded installation structure optimization
- Interface design customization
- Product appearance customization
- Technical documentation support
- Mass production services
Helping customers achieve efficient product integration and large-scale application.
When the FRD Sensor FD820C Embedded Micro Differential Pressure Transmitter experiences issues such as measurement deviation, signal fluctuation, zero-point drift, or abnormal output, engineers can follow the troubleshooting process below to quickly identify the root cause.
Power Supply & Configuration Check → Installation & Air Connection Inspection → Zero Point & Temperature Compensation Verification → Sensor & Electronic Module Inspection
First, confirm that the power supply and system configuration are operating normally.
Key inspection items include:
- Supply voltage stability
- Wiring connections
- Output signal configuration
- Communication parameters
Power supply problems or incorrect configuration settings may cause unstable output signals or measurement errors.
Check the installation environment and pressure connection system:
- Whether air tubes are blocked or leaking
- Whether pressure ports are correctly connected
- Whether installation position is affected by airflow disturbance
- Whether vibration or environmental interference exists
Improper installation conditions are common causes of micro differential pressure measurement errors.
Use standard calibration equipment to check:
- Zero-point output
- Measurement accuracy
- Temperature compensation performance
- Output stability
The FD820C adopts intelligent temperature compensation technology to reduce the influence of environmental temperature changes on measurement performance.
If the installation conditions and external connections are confirmed to be normal but measurement problems still remain, further inspection is required for:
- Micro differential pressure sensing element condition
- Electronic module stability
- Signal processing circuit performance
Through systematic inspection of the sensor and electronic components, the root cause of measurement abnormalities can be accurately identified.
FRD Sensor FD820C Embedded Micro Differential Pressure Transmitter is designed for precise micro differential pressure measurement in cleanrooms, HVAC systems, laboratories, and precision equipment applications.
With high-sensitivity sensing technology, intelligent temperature compensation, and a compact embedded design, it accurately detects small pressure variations.
It effectively reduces issues such as zero-point drift, temperature influence, signal fluctuation, and installation limitations.
The FD820C provides a stable and reliable micro differential pressure monitoring solution for environmental control and automation systems.
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