1. Overview of the ADPS-08-2-N-C Differential Pressure Switch
ADPS-08-2-N-C is the highest-range model in the Adjustable Differential Pressure Switch (ADPS) series from Dwyer Instruments – USA.
It features a wide measuring range up to 2000 Pa, making it ideal for systems that require strong and stable pressure control, such as industrial fans, AHU filters, underground ventilation, and cleanroom pressure control.
This device is a top choice for M&E engineers needing to monitor and control HVAC systems based on real-time differential pressure.
2. Technical Specifications of ADPS-08-2-N-C
3. Outstanding Applications in HVAC and Cleanroom Systems
Thanks to its high-pressure handling capability, the ADPS-08-2-N-C is widely used in scenarios requiring reliable and stable pressure monitoring.
Monitoring Fan Pressure in Underground Ventilation Systems
• Measures static pressure before and after fans
• Detects faults such as pressure loss, fan blockage, or reduced suction performance
Industrial Air Filter Monitoring
• Detects clogged HEPA, carbon, or dust filters
• Triggers alerts or shuts down the fan to protect the motor
Fan Control Based on Pressure Difference
• Integrates with electrical panels to start/stop fans based on pressure thresholds
• Enhances energy efficiency and extends equipment life
Cleanroom and Pharmaceutical Warehouse Pressure Control
• Ensures positive/negative pressure is consistently maintained across zones
• Supports GMP/ISO compliance for critical environments like pharmaceutical or electronics manufacturing
4. Key Advantages of ADPS-08-2-N-C
Wide Measuring Range for Versatile Applications
• From 200 to 2000 Pa – suitable for everything from light air filtration to high-power fans
No Power Supply Required
• Simple mechanical structure – no power consumption, minimal maintenance
SPDT Contact Output
• Easily connects to electrical panels, alarm systems, PLCs, and BMS
Resistant to Vibration and Heat
• Rugged housing suitable for industrial, basement, or mechanical environments
Compact and Easy to Install
• Can be mounted directly on AHU frames or technical walls, saving space
5. Installation Guide for ADPS-08-2-N-C
Step 1: Identify Mounting Location
• Mount the device near the measurement point, such as on AHU frame or control panel
• Avoid areas with excessive moisture or strong vibration
Step 2: Connect Pressure Tubes
• Use Ø6 mm tubing to connect the High and Low ports to inlet and outlet points (e.g., ducts, filters, fans)
• Ensure all joints are airtight
Step 3: Adjust Setpoint
• Turn the setpoint knob to the desired pressure within the 200–2000 Pa range
• Use a reference pressure gauge for precise setup if needed
Step 4: Electrical Wiring
• Use the three SPDT terminals: NO – NC – COM
• Connect to relays, buzzers, monitoring systems, BMS, or PLCs
6. DLK – Official Dwyer Distributor in Vietnam
DLK TRADING AND SERVICE CO., LTD is an authorized distributor of Dwyer Instruments (USA) in Vietnam.
We supply a full range of ADPS models (ADPS-03, ADPS-05, ADPS-08) to meet all differential pressure monitoring needs from low to high levels.
Why choose DLK?
• Genuine products with CO – CQ certification
• On-site technical support and model selection assistance
• Ready stock – fast nationwide delivery
• Clear warranty policies and expert consultation from experienced engineers
Looking for a reliable device to monitor fan or filter pressure in HVAC or cleanroom applications?
ADPS-08-2-N-C is the ideal solution – durable, accurate, and easy to integrate.