Advanced Dwyer 1910-0 Compact Size Low Differential Pressure Switch

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Advanced Dwyer 1910-0 Compact Size Low Differential Pressure Switch Specification

Max Pressure
10 psi (0.69 bar)

Thread size
1/8 female NPT

Function
Monitors and controls low air differential pressure

Mechanical Life
10 cycles

Working Temperature
-30C to 85C

Product Type
Low Differential Pressure Switch

Max. Current
15A (SPDT) resistive at 120-480 VAC

Max. Voltage
480 VAC

Protection Class
IP54 (Enclosure)

Pressure Range
0.03 to 0.2 w.c. (7.5 to 50 Pa)

Application
Air and non-combustible compatible gases

Output Signal
SPDT snap switch

Size
Compact - 145 mm x 96 mm x 101 mm (approx.)

Color
Gray body with silver cover

Weight
Approx. 680 grams

Advanced Dwyer 1910-0 Compact Size Low Differential Pressure Switch Trade Information

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

Main Export Market(s)
Australia, South America, Middle East, Western Europe, Africa, Central America, Eastern Europe, Asia, North America

Main Domestic Market
All India

About Advanced Dwyer 1910-0 Compact Size Low Differential Pressure Switch

Dwyer 1910-0 Compact Low Differential Pressure Switch

Range 0.15 - 0.55" W.C.

The Dwyer 1910-0 Compact Low Differential Pressure Switch 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. For air and non-combustible compatible gases, 19100 switches have set points from 0.15 - 0.55" w.c.. Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering. UL, CE and CSA listed, and FM approved.

Range: 0.15 - 0.55" W.C.
Flame-proof ATEX enclosure protects the device in hazardous areas
Compact size and repeatability, provides a high-value switch for many industrial and OEM applications
Range screw protected inside switch enclosure prevents tampering
No power to operate DPDT switch means no additional wiring or conduit reduces material and installation labor costs
Easy access for modifying set point simplifies adjustment
Both control contacts activate at the same time eliminating system issues where lead switch activities preventing the lagging switch from sending a signal

MANUFACTURER	Dwyer
PART NUMBER	1910-0
SHORT DESCRIPTION	1910-0 - SPDT Compact Low Differential Pressure Switch with Conduit, Range 0.15-0.5" 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	0.15-0.5" 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 180°F
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

Reliable Low Differential Pressure Monitoring

Engineered to respond to minute pressure changes, the Dwyer 1910-0 is ideal for applications requiring the detection and control of low air pressure differentials. Its high repeatability and snap-action switching make it well-suited for HVAC equipment, clean rooms, and industrial automation, providing consistent and precise operation over millions of cycles.

Easy Installation and Flexible Configuration

Designed for convenient setup, the external screw-type set point adjustment allows field personnel to quickly set or modify switching points. The vertical diaphragm mounting, along with standard barbed and threaded connections, facilitates effortless integration into existing systems, reducing installation time and ongoing maintenance.

Durable and Safe Construction

The pressure switch boasts a rugged die-cast aluminum enclosure rated IP54, offering substantial protection against dust and splashing water. With a wide working temperature range (-30C to 85C), high electrical capacity (up to 15A at 480 VAC), and a mechanical life of 100,000 cycles, the device ensures durable and safe operation in demanding environments.

FAQs of Advanced Dwyer 1910-0 Compact Size Low Differential Pressure Switch:

Q: How do I adjust the set point on the Dwyer 1910-0 pressure switch?

A: The set point can be adjusted externally using the screw adjustment mechanism on the switch. This allows the user to easily calibrate the desired actuation pressure without disassembling the unit.

Q: What types of fluids are compatible with this low differential pressure switch?

A: The device is specifically designed for air and other compatible non-combustible gases. Use with combustible gases or liquids is not recommended due to safety considerations.

Q: Where should the Dwyer 1910-0 be installed for optimal operation?

A: For best performance, mount the pressure switch with the diaphragm in the vertical position. Ensure that the barbed process connections and electrical screw terminals are properly secured during installation.

Q: What is the benefit of the SPDT snap-action switch in this model?

A: The SPDT snap-action switch provides reliable, precise, and quick switching when the set point is reached. This action reduces contact wear and enhances the switchs overall durability and longevity.

Q: What applications are best suited for the Dwyer 1910-0 pressure switch?

A: This model is ideal for monitoring and controlling low differential pressures in HVAC systems, filter monitoring, clean rooms, and industrial automation, as well as any process where precise air pressure control is vital.

Q: What is the maximum electrical rating for this switch?

A: The pressure switch can handle up to 15A (SPDT) resistive at 120-480 VAC, with a maximum voltage rating of 480 VAC, making it suitable for a wide range of switching duties.

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