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1640-5 | Floating contact switch | range 2.0-6.0" w.c. | adj. span | .03 min. set | .18 max. Set. | Dwyer Instruments

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Overview

Details for 1640-5

2/6" Floating Contact Null Switch: Dwyer Instruments 1640-5Dwyer Instruments 1640-5 is a 2/6" floating contact switch designed for precise pressure measurements and control. This switch features a compact design, making it ideal for applications where space is limited. The 1640-5 provides reliable, accurate, and fast response time, ensuring optimal performance in critical industrial processes. Key Features and Benefits: Versatile pressure switch for accurate pressure sensing and control. Compact design for easy installation in confined spaces. Floating contact design provides high-pressure accuracy. Fast response time for efficient and reliable control. Wide pressure range handling various industrial applications. Applications: Dwyer Instruments 1640-5 is widely used in industrial automation, process control, and monitoring applications, including: Pressure monitoring and control in chemical processing. Hydraulic and pneumatic systems. HVAC systems and refrigeration equipment. Medical equipment and devices. Our HVAC supply store offers the Dwyer Instruments 1640-5 switch at competitive prices, ensuring you get the best value for your investment. With fast shipping and excellent customer support, we are your reliable source for industrial products. Contact us today to place your order and elevate your industrial processes with the Dwyer Instruments 1640-5 floating contact switch.

Series 1640 Floating Contact Null Switch for High and Low Actuation

Visual Set Point Adjustment, Adjustable Null Zone

The unique electric switch design in the Series 1640 is another Dwyer Instruments innovation. The Dwyer® Series 1640 Differential Pressure Switch resembles the Series 1630 switches. However, the Series 1640 is equipped with a single pole, double throw floating contact switch (not snap acting) so it functions as a switch.

As the diaphragm moves in response to pressure changes, it moves the floating contact to cause switching action at two preset points with no switching action between these points. The "high" circuit will be closed when rising pressure differential reaches the preset level. The "low" circuit will be closed when falling pressure differential reaches the preset level.

A typical example of usage is to position motorized dampers when static pressure in a duct system reaches a desired maximum and reposition the dampers when the static pressure falls to a pre-established minimum. By using a Pitot tube sensing element the Series 1640 switch can serve in the same way to control air velocity and maintain a constant volume of air in a supply duct.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Product Applications

Damper positioning
Duct air control

Floating “” switch supports applications requiring two set point actions such asopen and close damper control
Visible set point indicator simplifies operation and trouble shooting
Large diaphragm provides low range accuracy providing precise control

Specifications

Series: 1640 Floating Contact Null Switch for High and Low Actuation
Category/Type: Pressure
Type: Differential Pressure
Series: 1640 Floating Contact Null Switch for High and Low Actuation
Service: Air and non-combustible; compatible gases.
Wetted Materials: Consult factory.
Temperature Limits: -30 to 110°F (-34.4 to 43.3°C).
Pressure Limits: 10 psig (68.95 kPa) continuous; 25 psig (172.4 kPa) surge.
Switch Type: SPDT.
Electrical Rating: Non-inductive: 2.5 A @ 110 VAC; 1.5 A @ 220 VAC; 1 A @ 24 VDC; 0.5 A @ 110 VAC; Inductive: 1 A @ 110 VAC; 0.5 A @ 220 VAC; 0.5 A @ 24 VDC. (De-rate 70-80% for very slow pressure changes.)
Electrical Connections: 3 screw type; common; normally open and normally closed.
Process Connections: 1/8" female NPT.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Screw type.
Weight: 4 lb 13 oz (2.18 kg).
Agency Approvals: CE.