Dwyer 1920-10 Compact Low Differential Pressure Switch

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Dwyer 1920-10 Compact Low Differential Pressure Switch

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MOQ : 2 Pieces

Dwyer 1920-10 Compact Low Differential Pressure Switch Specification

Display
No display (electromechanical switch)

Grade
Industrial Grade

Outer Size
2-3/8 diameter body

Sensor Type
Diaphragm-actuated pressure switch

Thread
1/4 NPT Female

Seal Material
Neoprene (standard)

Material
Housing: Aluminium; Diaphragm: Polyester

Processing Type
Factory calibrated

Diameter
2-3/8 inches (60 mm)

Mount Type
Surface or panel mount

Scale Range
0.08 to 1.0 in w.c. (20 to 250 Pa)

Accuracy
10% of set point

Finishing
Anodized aluminium housing

Accessories
Mounting hardware included

Weight
Approx. 226 grams (0.5 lb)

Electrical Rating
10 A @ 120/250 VAC, 2 A @ 30 VDC (resistive)

Enclosure Protection
IP54

Contact Type
SPDT snap action switch

Process Connection
Two barbed fittings for 1/4" I.D. tubing

Operating Temperature Range
-30 to 180F (-34 to 82C)

Agency Approvals
UL, CE

Repeatability
0.02 in w.c. (5 Pa)

Set Point Adjustment
External screwdriver slot

Maximum Pressure
10 psi (0.7 bar)

Dwyer 1920-10 Compact Low Differential Pressure Switch Trade Information

Minimum Order Quantity
2 Pieces

Payment Terms
Cash Against Delivery (CAD), Cash in Advance (CID), Cash Advance (CA), Cash on Delivery (COD)

Main Export Market(s)
Asia

Main Domestic Market
All India

About Dwyer 1920-10 Compact Low Differential Pressure Switch

Dwyer 1920-10 Compact Low Differential Pressure Switch.

RANGE 4.0-20.0" W.C.

DESCRIPTION

Most popular SERIES 1900 combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications. Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering.

Compact size and repeatability, provides a high-value switch for many industrial and OEM applications.

Range screw protected inside enclosure provides simplifies making adjustments but prevents tampering.

MANUFACTURER	Dwyer
PART NUMBER	1910-20
SHORT DESCRIPTION	1910-20 - SPDT Compact Low Differential Pressure Switch with Conduit, Range 4.0-20.0" w.c., 1/8" FNPT, Conduit Enclosure
PRODUCT SERIES	1900 Series
NOMINAL OR PRIMARY VOLTAGE	120-277 VAC
AMPERAGE RATING	15A
SET POINT/SET POINT RANGE	4.00-20.00" w.c.
INPUT(S)	Resistive 1/8 HP at 125 VAC, 1/4 HP at 250 VAC
CONTACT	SPDT
CONNECTION	Process Connection: 1/8" FNPT; Electrical Connection: 3 Screw Type, Common, Normally Open and Normally Closed
PRESSURE RANGE	45" w.c. (11.2 kPa) Continuous; 10 psig (68.95 kPa) Surge
MAX TEMPERATURE	-30 to 180F
FREQUENCY	60 Hz
APPLICATIONS	For Air Conditioning Refrigeration Coil Icing Detection, Defrost Cycle Intiation, Clogged Filter Detection, Variable Air Volume Controller, Air and Non-Combustible, Compatible Gases
STANDARDS/APPROVALS	CE Approved, CSA, FM, UL, RoHS Complaint
ADDITIONAL PRODUCTS OR REQUIREMENTS	A-399, A-329, A-489, A-302F-A

Versatile Application and Rugged Design

The Dwyer 1920-10 Compact Pressure Switch is built for industrial versatility. Its robust, anodized aluminium body and polyester diaphragm make it highly durable for use with mediums like steam, oil, and gas. Designed with both surface and panel mount options, it fits smoothly into a variety of workflows. It is factory-calibrated and includes mounting hardware, ensuring easy installation and dependable operation in challenging environments.

Precision and Adjustability

This pressure switch provides dependable accuracy within 10% of the set point and a repeatability of 0.02 in w.c. External set point adjustment via screwdriver slot streamlines on-site calibration and maintenance. The switch handles pressures up to 10 psi, covering a scale range suitable for sensitive differential measurements, ensuring consistent performance in critical applications.

Safety, Compliance, and Ease of Integration

With agency approvals from UL and CE, the 1920-10 meets rigorous safety and quality standards. Its IP54-rated enclosure and electrical ratings ensure both user and equipment safety. Process connections via barbed fittings and standard 1/4 NPT threads allow straightforward integration with existing industrial tubing systems. Ideal for manufacturers and exporters in India, it is a reliable solution for process control.

FAQ's of Dwyer 1920-10 Compact Low Differential Pressure Switch:

Q: How is the set point adjusted on the Dwyer 1920-10 pressure switch?

A: The set point can be easily adjusted externally using a screwdriver slot located on the body of the switch, eliminating the need for disassembly during calibration.

Q: What types of media can this pressure switch measure?

A: The Dwyer 1920-10 is designed to measure the pressure of steam, oil, and gas, making it suitable for a variety of industrial process applications.

Q: When is this switch ideal to use in an industrial setup?

A: It is ideal for scenarios where monitoring and control of low differential pressure is essential-for example, ensuring safe operation in HVAC, filtration, combustion, or process control systems.

Q: Where can the switch be mounted during installation?

A: The switch supports both surface and panel mounting, allowing flexibility in installation according to your system's requirements. Mounting hardware is included for convenience.

Q: What is the benefit of the SPDT snap action contact type?

A: The SPDT snap action allows for quick, reliable electrical switching between two circuits. This ensures minimal contact wear and dependable performance over the switch's operational lifespan.

Q: How is the switch connected to the pressure source?

A: Two barbed fittings accept 1/4" I.D. tubing for quick tubing connections, and a standard 1/4 NPT female thread is also provided for secure integration into most industrial setups.

Q: What compliance and safety standards does the 1920-10 meet?

A: The switch is UL and CE approved, and features an IP54-rated enclosure, ensuring compliance with international safety and performance regulations for industrial equipment.

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