BECK 930 Differential Air Pressure Switch
| Pressure Range | 20–200 Pa, 20–300 Pa, 30–400 Pa, 50–500 Pa, 100–1000 Pa, 500–2500 Pa, 1000–4000 Pa, 1000–5000 Pa |
| Maximum Operating Pressure | 10 kPa |
| Medium Compatibility | Air or non-combustible, non-aggressive gases |
| Temperature Range | Medium and Ambient: –20 °C to +85 °C | Storage: –40 °C to +85 °C |
| Diaphragm Material | Silicone, heat-treated and free of gas emissions |
| Pressure Connections | Two plastic tube connectors (P1 = higher pressure “+”, P2 = lower pressure “–”) with 6 mm outer diameter |
| Housing | Durable plastic body with cover |
| Weight | Approx. 150 g with cover, 110 g without cover |
| Electrical Rating | Standard version: up to 1.5 A at 250 VAC | Low voltage version: up to 0.1 A at 24 VDC |
| Protection Class | IP54 (standard), IP65 (optional higher protection) |
| Mechanical Life | More than 1,000,000 switching operations |
Beck 930 Adjustable Differential Air Pressure Switch
The Beck 930 series is an adjustable differential pressure switch designed to monitor over-pressure, vacuum, or differential pressure in air and other non-combustible, non-aggressive gases. It is widely used in HVAC, ventilation, and industrial air systems for reliable pressure control and monitoring. The switch point can be easily adjusted using a built-in knob without the need for external tools or gauges.
Key Features and Specifications
- Pressure Range: Available in different models with adjustable ranges such as 20–200 Pa, 20–300 Pa, 30–400 Pa, 50–500 Pa, 100–1000 Pa, 500–2500 Pa, 1000–4000 Pa, and 1000–5000 Pa.
- Maximum Operating Pressure: 10 kPa
- Medium Compatibility: Air or non-combustible, non-aggressive gases
- Temperature Range: Medium and Ambient: –20 °C to +85 °C | Storage: –40 °C to +85 °C
- Diaphragm Material: Silicone, heat-treated and free of gas emissions
- Pressure Connections: Two plastic tube connectors (P1 = higher pressure “+”, P2 = lower pressure “–”) with 6 mm outer diameter
- Housing: Durable plastic body with cover
- Weight: Approx. 150 g with cover, 110 g without cover
- Electrical Rating: Standard version up to 1.5 A at 250 VAC | Low voltage version up to 0.1 A at 24 VDC
- Protection Class: IP54 (standard), IP65 (optional higher protection)
- Mechanical Life: More than 1,000,000 switching operations
Applications
- Monitoring air filters and ventilators
- Monitoring industrial cooling-air circuits
- Overheating protection for fan heaters
- Monitoring airflow in ventilation ducts
- Controlling air and fire-protection flaps
- Frost protection for heat exchangers
Advantages
- Adjustable set-point for flexible use
- Wide pressure range options for different system requirements
- Compact, lightweight, and easy to install
- Clearly marked pressure ports for quick setup
- Reliable switching for both over-pressure and vacuum applications
- Long service life and low maintenance
Installation Tips
- Install vertically with pressure ports facing downward for accurate switching.
- Horizontal installation may cause a small pressure offset (approx. +20 Pa).
- Use correct tubing size (6 mm) and ensure airtight connections.
- Choose the model with the pressure range closest to your system requirement.
- For dusty or humid environments, use the IP65 version for better protection.
- Ensure electrical connections match your system’s voltage and current limits.