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3G Electric
Dwyer A3000-00 Photohelic Differential Pressure Gauge & Switch - Low Operating Pressure Differential Gauges with Switch
DwyerLow Operating Pressure Differential Gauges with Switch

Dwyer A3000-00 Photohelic Differential Pressure Gauge & Switch

The Dwyer A3000 Photohelic Series Differential Pressure Gauge & Switch: Single-Side (MPN A3000-00) is a low operating pressure differential gauge with switch featuring a die cast aluminum housing and ±4% gauge…

SKU 3G-OTH-175303

Also listed as: A300000 · A3000 00

Brand
Dwyer
Item
A3000-00 Photohelic Differential Pressure Gauge & Switch
Part Number
A3000-00
Category
Low Operating Pressure Differential Gauges with Switch
Available to Order
Also known as:A3000-00Dwyer
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

Dwyer
Manufacturer Part Number
A3000-00
Type
±4% Gauge Accuracy
Mfr. Model
A3000-00
NPT Female
1/8 in
Non-Sparking
No
Catalog Group
K4580
Gauge Accuracy
±4%
Pressure Range
0 in wc to 0.25 in
Nominal Dial Size
4
Includes Vent Plug
No
Blowout Safety Back
No
Bolt Circle Diameter
5.125
For Panel Cutout Diameter
4.812
Includes Mounting Hardware
No
Pressure Measurement - Maximum
0.25 in
Pressure Measurement - Minimum
0 in
Dial Differential Pressure Gauges
DWYER Differential Pressure Gauge…
Process Media Temperature - Maximum
120
Process Media Temperature - Minimum
20

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer A3000 Photohelic Series Differential Pressure Gauge & Switch: Single-Side (MPN A3000-00) is a low operating pressure differential gauge with switch featuring a die cast aluminum housing and ±4% gauge accuracy. It has 1/8 in NPT female connections and does not include a certificate of calibration.

Frequently Asked Questions

What is the Dwyer A3000 Photohelic differential pressure gauge and switch used for?

The Dwyer A3000 Photohelic is used to measure and control low differential air or gas pressure in HVAC, cleanroom, and industrial ventilation systems. It combines a gauge and switch in one unit, enabling alarm or fan control at a setpoint.

What are the specifications of the Dwyer A3000-00 differential pressure gauge?

The Dwyer A3000-00 is a single-side differential pressure gauge and switch from the A3000 Photohelic Series. It has a die cast aluminum housing, ±4% gauge accuracy, and 1/8 in NPT female connections. A certificate of calibration is not included.

Where to buy the Dwyer A3000-00 differential pressure gauge worldwide?

You can source the Dwyer A3000-00 differential pressure gauge worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the Dwyer A3000 Photohelic differential pressure gauge?

Mount the Dwyer A3000 Photohelic in a vertical position using the 1/8 in NPT female connections. Connect pressure lines to the high and low ports, ensuring no leaks. Wire the switch contacts per your control circuit. Refer to the manual for proper setpoint adjustment.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management
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Dwyer Products

3G Electric supplies Dwyer low operating pressure differential gauges with switch. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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The Dwyer A3003 is a low operating pressure differential gauge with switch from the A3000 Photohelic series. It features a diaphragm sensor, ±2% gauge accuracy, and a die cast aluminum housing with 1/8 in NPT female connections. This instrument is used to monitor low differential pressure and provides an adjustable switch for alarm or control at a set point
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The Dwyer A3003 is a low operating pressure differential gauge with switch from the A3000 Photohelic series. It features a diaphragm sensor, ±2% gauge accuracy, and a die cast aluminum housing with 1/8 in NPT female connections. This instrument is used to monitor low differential pressure and provides an adjustable switch for alarm or control at a set point

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