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Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa

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Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa

Price 40000 INR/ Piece

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MOQ : 1 Piece

Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa Specification

Outer Size
4 inches (approx.)

Thread
1/8 NPT Female

Bourdon Tube
Not Applicable (Diaphragm/Piston Sensing Element)

Sensor Type
Differential Pressure Sensor

Seal Material
Silicone

Grade
Industrial

Display
Analog with Set Pointers and Electrical Switches

Material
Die-Cast Aluminum Case, Acrylic Lens

Dial Material
Acrylic

Pointer Material
Aluminum

Processing Type
Machined, Assembled

Diameter
4" (101.6 mm) Dial Face 5 x 8" (127 x 209.55 mm)

Glass Size
4 (approx., covers full dial)

Mount Type
Surface or Panel Mount

Scale Range
0-1.5 kPa.

Accuracy
2% of Full Scale

Finishing
Epoxy-Coated Case

Measure Pressure Of
Air and Compatible Gases

Accessories
Mounting Hardware, Instruction Manual

Model
A3000-1.5KPA

Pressure Connection
1/8" NPT Female (high and low)

Response Time
Instantaneous switching

Reset Type
Automatic Reset

Operating Temperature Range
-6.67C to 60C (20F to 140F)

Compliance
CE Marked

Electrical Rating
5A @ 120/240 VAC

Switch Type
SPDT (Single-Pole Double-Throw), 2 adjustable setpoints

Enclosure Rating
IP54 (Splash Resistant)

Power Supply
No external power needed for gauge; switching requires external circuit

Weight
Approx. 600 grams (1.3 lbs)

Application
HVAC, Air Handling, Filter Monitoring, Process Control

Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash Against Delivery (CAD), Cash on Delivery (COD), Delivery Point (DP), Cheque, Letter of Credit (L/C), Telegraphic Transfer (T/T), Paypal, Western Union, Letter of Credit at Sight (Sight L/C), Days after Acceptance (DA), Cash in Advance (CID), Cash Advance (CA)

Packaging Details
EXTRA

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

Main Domestic Market
Dadra and Nagar Haveli, Chandigarh, South India, Central India, North India, East India, West India, Andhra Pradesh, Assam, Arunachal Pradesh, Bihar, Daman and Diu, Goa, Haryana, Jammu and Kashmir, Jharkhand, Manipur, Karnataka, Kerala, Lakshadweep, Madhya Pradesh, Maharashtra, Mizoram, Nagaland, Odisha, Punjab, Pondicherry, Rajasthan, Tamil Nadu, Telangana, West Bengal, Uttar Pradesh, Himachal Pradesh, Sikkim, Tripura, Meghalaya, Andaman and Nicobar Islands, Uttarakhand, Delhi, Gujarat, Chhattisgarh, All India

Certifications
YAS

About Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa

Dwyer A3000-1.5KPA Photohelic Pressure Switch/Gauge (0-1.5 kPa)

Model: A3000-1.5KPA

Bezel and Front Cover (with set point knobs and zero adjustment screw) removed to expose PhotohelicA switch/gage set point mechanism. Gage pointer and light shutter are mounted on helix and balancing counterweight.

Dwyer A3000-1.5KPA Series A3000 Photohelic Pressure Switch Range 0 to 1 5 kPa

The Dwyer A3000-1.5KPA has a Range From 0-1.5 kPA.

PhotohelicA Switch/Gauges Function as versatile, highly repeatable Pressure Switches combined with a precise pressure gauge employing the time-proven MagnehelicA gauge design. The PhotohelicA switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gauge face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gauge reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25" (0-6 mm) w.c. up to 30 psi (21 bar); single positive pressure to 6000 psig (413 bar).

Photohelic Sensing - How It Works

In typical applications, these Dwyer Switch/Gages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation.

Relay-Transformer Features

A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards.

Specifications

GAGE SPECIFICATIONS

Service:Air and non-combustible, compatible gases.

Wetted Materials:Consult Factory.

Accuracy:A2% of FS at 70AAF (21.1AAC). A3% on -0 and A4% on -00 models.

Pressure Limits:-20" Hg. to 25 psig (-0.677 to 1.72 bar). MP option; 35 psig (2.41 bar), HP option; 80 psig (5.52 bar).

Temperature Limits:20 to 120AAF. (-6.67 to 48.9AAC). -20 to 120AAF (-28 to 48.9AAC) with low temperature option.

Process Connections:1/8" female NPT.

Size:4" (101.6 mm) dial face, 5" (127 mm) O.D. x 8-1/4" (209.55 mm).

Weight:4 lb (1.81 kg).

SWITCH SPECIFICATIONS

Switch Type:Each setpoint has 2 Form C relays (DPDT).

Repeatability:A1% of FS.

Electrical Rating:10 A @ 28 VDC, 10 A @ 120, 240 VAC.

Electrical Connections:Screw terminals. Use 167AAF (75AAC) copper conductors only.

Power Requirements:120 VAC, 50/60 Hz; 240 VAC & 24 VAC power optional.

Mounting Orientation:Diaphragm in vertical position. Consult factory for other position orientations.

Set Point Adjustment:Adjustable knobs on face.

Agency Approvals:CE, CSA, UL.

Versatile Process Control

With its dual SPDT switches, the Dwyer A3000-1.5KPA Photohelic gauge provides both monitoring and control capabilities. The two adjustable setpoints allow precise management of air pressure across HVAC and process applications. Its instantaneous switching and automatic reset functions ensure efficient operation without manual intervention, delivering confidence in critical monitoring tasks.

Durability and Accurate Performance

Crafted from die-cast aluminum and featuring an IP54-rated enclosure, the gauge is suitable for industrial environments where splash resistance is imperative. The analog display, set pointers, and 2% accuracy make readings easy and trustworthy. Installation flexibility is assured via surface or panel mounting options, while the included mounting hardware simplifies setup.

FAQ's of Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge Range 0-1.5 kPa:

Q: How does the Dwyer A3000-1.5KPA Photohelic Pressure Switch Gauge operate?

A: This gauge functions as both a pressure indicator and a control switch. It senses differential pressure using a diaphragm/piston element, displaying the value on an analog dial and activating one or both SPDT switches when setpoints are reached. No external power is needed for pressure measurement; however, external circuitry is needed for the switch outputs.

Q: What types of applications is the A3000-1.5KPA suitable for?

A: The gauge is ideal for HVAC systems, air handling units, filter monitoring, and process control where reliable differential pressure monitoring of air or compatible gases is required. Its splash-resistant enclosure (IP54) and CE compliance make it fit for demanding industrial and commercial installations.

Q: When should I consider using the dual setpoint feature?

A: The dual adjustable setpoints are beneficial whenever both high and low pressure thresholds need monitoring and discrete switching-such as activating alarms, controlling equipment, or providing process safeguards within a specific pressure range.

Q: Where should this gauge be installed for optimal performance?

A: Installation is recommended on a flat surface or panel, using the provided mounting hardware, in locations protected from direct water jets. The gauge is designed to withstand operating temperatures from -6.67C to 60C and requires access to 1/8" NPT female pressure connections for accurate sensing.

Q: What is the process for adjusting setpoints on the A3000-1.5KPA?

A: To adjust setpoints, use the front panel adjustment knobs to move the set pointers to the desired pressure values on the dial. Refer to the instruction manual for precise steps to ensure the setpoints correspond with your process requirements.

Q: What advantages does this model offer over standard pressure gauges?

A: The A3000-1.5KPA combines visual pressure indication with dual SPDT switches, provides automatic reset, instant response, high accuracy, splash resistance, and doesn't require external power for the gauge, offering enhanced safety and control in one compact instrument.

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