Dwyer Instruments A-396A | Calibration Pump | Hand operated | Adjustable Output | 0 - 72 psig (5 Bar) | Bleed Valve
The Dwyer A-396A calibration pump is a compact, hand-operated pressure source designed for setting pressure switches and calibrating gauges and transmitters. It provides adjustable pressure from a fraction of an inch W.C. up to 72 psig (5 bar) and features a bleed valve and volume adjustment for precise pressure control.
Genuine Control Techniques stock · Free UAE-wide shipping
Part Number: A-396A
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Product Overview
The Dwyer A-396A provides a convenient manual pressure source for calibration and pressure-setting applications. Its wide operating range extends from a fraction of an inch W.C. up to 72 psig (5 bar), making it suitable for both low-pressure adjustment and higher-pressure instrument testing.
The pump is designed to be used with a manometer or other pressure reference standard when calibrating gauges, transmitters, and pressure switches. A built-in bleed valve allows controlled pressure release, while the volume adjustment provides fine control over the generated pressure.
The volume adjustment provides approximately 1.2 in³ (20 cm³) of displaced volume per 3/64" (1 mm) thread revolution, allowing small pressure changes to be made in a controlled and repeatable manner.
The A-396A is supplied with three 36" vinyl tubes, a tee connector, and a barbed fitting, providing the basic connections needed to connect the pump, reference standard, and device under test.
With a compact design measuring approximately 20 cm × 3.5 cm and weighing about 400 g, the A-396A is convenient for portable and field calibration work. It has a 1/8" NPT female output connection and is designed for operation from -29 to 49°C.
Dwyer suggests using the DPG-024 reference gauge with the A-396A for calibration applications.
Key Benefits
- Adjustable pressure output from a fraction of an inch W.C. to 72 psig (5 bar)
- Hand-operated design for convenient field calibration
- Built-in bleed valve for controlled pressure release and adjustment
- Volume adjustment provides fine, repeatable pressure control
- Approximately 1.2 in³ (20 cm³) displaced volume per 3/64" (1 mm) thread revolution
- Includes three 36" vinyl tubes, tee connector, and barbed fitting
- Compact and lightweight design for portable calibration work
- 1/8" NPT female output connection
- Suitable for pressure switch setting and gauge or transmitter calibration
- Genuine Dwyer stock with free UAE-wide shipping
Who This Product Is Best For
The Dwyer A-396A is suitable for technicians, maintenance teams, calibration professionals, and field service engineers who need a compact manual pressure source.
It is particularly useful for setting pressure switches or calibrating pressure gauges and transmitters where precise, repeatable pressure adjustment is required.
How to Use
- Connect the A-396A to the device under test and a manometer or reference standard using the supplied tubing and tee connector.
- Operate the volume adjustment to generate the required pressure.
- Use the fine thread adjustment to make small pressure changes at the test point.
- Use the bleed valve to fine-tune or release pressure as required.
- Compare the device under test against the reference instrument and record the calibration or setting results.
Frequently Asked Questions
What pressure range does the Dwyer A-396A cover?
The A-396A provides adjustable pressure from a fraction of an inch W.C. up to 72 psig (5 bar).
What is the Dwyer A-396A used for?
It is used as a manual pressure source for setting pressure switches and calibrating pressure gauges and transmitters when used with a manometer or other reference standard.
How precise is the A-396A volume adjustment?
The pump provides approximately 1.2 in³ (20 cm³) of displaced volume per 3/64" (1 mm) thread revolution, allowing fine and repeatable pressure adjustment.
What is included with the A-396A?
The pump includes three 36" vinyl tubes, a tee connector, and a barbed fitting for connecting the pump and instruments during calibration.
Does the A-396A have a bleed valve?
Yes. The built-in bleed valve allows pressure to be finely adjusted or released during calibration.
What reference gauge is recommended with the A-396A?
Dwyer suggests the DPG-024 as a reference gauge to use with the A-396A.
What is the output connection?
The A-396A has a 1/8" NPT female output connection.
Is the A-396A suitable for field calibration?
Yes. Its compact and lightweight design, weighing approximately 400 g, makes it suitable for portable and field calibration applications.
Is genuine A-396A stock available with UAE shipping?
Yes. Genuine Dwyer stock with free UAE-wide shipping is available. Call +971 6 5436933 for current pricing and availability.
Request a Quote Today
For pricing, availability, or technical assistance with the Dwyer A-396A calibration pump, contact General Tech Services LLC.
Call: +971 6 5436933
Website: www.generaltechshop.ae
