Dwyer Instruments Capsu-Photohelic Pressure Switch Gage Model 43000-0

Dwyer Instruments Capsu-Photohelic® Pressure Switch/Gage Model 43000-0

The Dwyer Instruments Capsu-Photohelic® Pressure Switch/Gage Model 43000-0 is a versatile and precise instrument that combines the functionality of a highly repeatable pressure switch with an accurate pressure gage. Utilizing the time-proven Magnehelic® gage design, this model is engineered for applications requiring reliable pressure monitoring and control.

Key Features

• Dual Functionality: Serves as both a pressure switch and a gage, providing comprehensive pressure measurement and control in a single device.
• Encapsulated Sensing Element: Designed for compatibility with both liquids and gases, handling pressures up to 500 psig (34 bar).
• Dual DPDT Relays: Equipped with two phototransistor-actuated, double-pole double-throw relays for precise low and high limit control.
• Adjustable Set Points: Features easy-to-adjust set point indicators controlled by knobs located on the gage face, allowing for quick and accurate adjustments.
• Minimal Deadband: Individual set point deadband is one pointer width, less than 1% of full scale, ensuring precise control.
• Variable Deadband Control: Set points can be interlocked to provide variable deadband, ideal for applications such as pump control.

Specifications

• Service: Compatible with gases and liquids; brass case option required for water-based liquids.
• Accuracy: ±3% of full scale at 70°F (21.1°C).
• Pressure Limits: -20 in Hg to 500 psig (-0.677 to 34.5 bar).
• Temperature Limits: 20 to 120°F (-6.67 to 48.9°C); low-temperature option available.
• Process Connections: 1/4″ female NPT.
• Size: 4″ (101.6 mm) dial face; 5″ (127 mm) OD x 9-3/16″ (233.36 mm).
• Weight: 5 lb 8 oz (2.49 kg); brass case version weighs 11 lb 2 oz (5.05 kg).

Switch Specifications

• Switch Type: Each set point has 2 Form C relays (DPDT).
• Repeatability: ±1% of full scale.
• Electrical Rating: 10A at 120 VAC, 6A at 240 VAC, 60 Hz resistive; 10A at 28 VDC.
• Electrical Connections: Screw terminals.
• Power Requirements: 120 VAC, 50/60 Hz; optional 240 VAC and 24 VAC power available.
• Mounting Orientation: Diaphragm in vertical position; consult factory for other orientations.
• Set Point Adjustment: Adjustable knobs on face.

Applications

• Pump control
• Pumping systems
• Wastewater management
• Compatible liquid or gas applications

The Model 43000-0 is engineered to deliver reliable performance in demanding environments, making it an ideal choice for professionals seeking precise pressure monitoring and control solutions.