Dwyer Instruments Series 3000 Photohelic Pressure Switch Gage Model 3000-00

Dwyer Instruments Series 3000 Photohelic® Pressure Switch/Gage Model 3000-00

The Dwyer Instruments Series 3000 Photohelic® Pressure Switch/Gage Model 3000-00 is a versatile instrument that combines precise pressure measurement with reliable switching capabilities. Designed for monitoring and controlling positive, negative, or differential pressures of air and compatible gases, this device is ideal for various industrial applications.

Key Features

• Dual Functionality: Serves as both a pressure gauge and a switch, providing continuous pressure readings while offering high and low limit control.
• Accurate Measurement: Offers a pressure range of 0 to 0.25 inches of water column (w.c.) with an accuracy of ±4% of full scale at 70°F (21.1°C).
• Reliable Switching: Equipped with two phototransistor-actuated, double-pole double-throw (DPDT) relays for precise control. Each setpoint has a repeatability of ±1% of full scale.
• Easy Setpoint Adjustment: Features adjustable knobs on the gauge face for straightforward setpoint configuration.
• Durable Construction: Built with a clear polycarbonate plastic cover and glass epoxy printed circuit boards, ensuring longevity and resistance to environmental factors.

Technical Specifications

• Service: Suitable for air and non-combustible, compatible gases.
• Pressure Limits: Operates within -20 inches Hg to 25 psig (-0.677 to 1.72 bar).
• Temperature Limits: Functions effectively between 20 to 120°F (-6.67 to 48.9°C).
• Process Connections: Equipped with 1/8-inch female NPT connections.
• Electrical Rating: Supports 10 A at 28 VDC and 10 A at 120 or 240 VAC.
• Power Requirements: Operates on 120 VAC, 50/60 Hz, with optional configurations for 240 VAC and 24 VAC.
• Mounting Orientation: Designed for diaphragm in vertical position.
• Agency Approvals: Certified by CE, CSA, and UL.

Applications

The Model 3000-00 is ideal for applications requiring precise pressure monitoring and control, such as:

• HVAC systems
• Clean rooms
• Filter monitoring
• Fan and blower control
• Process control systems

Its robust design and reliable performance make it a preferred choice for professionals seeking accurate pressure measurement and control in demanding environments.