Dwyer Instruments Series 3000 Photohelic® Pressure Switch/Gage Model 3020
The Dwyer Instruments Series 3000 Photohelic® Pressure Switch/Gage Model 3020 is a versatile and reliable device designed for monitoring and controlling air and compatible gas pressures. Combining the functionality of a precise pressure gage with highly repeatable pressure switches, this instrument is ideal for applications requiring accurate pressure measurement and control.
Key Features
- Dual Functionality: Integrates a pressure gage and two adjustable pressure switches in a single unit, allowing for both monitoring and control.
- High Accuracy: Provides an accuracy of ±2% of full scale at 70°F (21.1°C), ensuring precise pressure readings.
- Adjustable Setpoints: Features easy-to-use knobs on the face of the gage for setting high and low pressure limits.
- Robust Construction: Built to withstand pressure limits from -20″ Hg to 25 psig (-0.677 to 1.72 bar), with options for higher pressure ratings.
- Wide Temperature Range: Operates effectively within a temperature range of 20 to 120°F (-6.67 to 48.9°C), with a low-temperature option available.
- Electrical Versatility: Equipped with two Form C relays (DPDT) per setpoint, rated at 10A @ 28 VDC or 10A @ 120/240 VAC, suitable for various control applications.
- Compliance and Safety: Meets CE, CSA, and UL standards, ensuring adherence to international safety and performance requirements.
Specifications
- Service: Air and non-combustible, compatible gases.
- Range: 0-20 inches of water column (w.c.).
- Process Connections: 1/8″ female NPT.
- Size: 4″ (101.6 mm) dial face; overall dimensions 5″ (127 mm) O.D. x 8-1/4″ (209.55 mm).
- Weight: Approximately 4 lb (1.81 kg).
- Power Requirements: 120 VAC, 50/60 Hz; options for 240 VAC and 24 VAC power are available.
The Dwyer Series 3000 Photohelic® Pressure Switch/Gage Model 3020 is an essential instrument for applications requiring precise pressure monitoring and control, offering reliability and ease of use in a compact design.
