Series 400 Air Velocity Meter

Displays Velocity and Air Pressure

The Series 400 Air Velocity Meter offers the convenience of a dual purpose instrument with high accuracy and easy-to-read scales. It can be used to balance air conditioning systems, measure pressure drop across filters, and test fan and blower discharge and inlet pressures. Series 400 kits include a manometer, Pitot tube, necessary tubing and connectors, red gage fluid, and carrying case.

Kit includes No. 400 Air Meter and all accessories:
Combination Inclined/Vertical Manometer. Dwyer® Durablock® precision machined solid acrylic plastic construction is virtually indestructible. Has both inclined section for high accuracy and vertical section for extended range. Pressure marked in black, Velocity in red figures. Easy to read - no reference tables needed. Has screw leveling adjustment and ground glass bubble level.

Click here, if you require a Safety Data Sheet for the Blue Gage Fluid or the Red Gage Fluid.

Product Applications

  • Air balancing
  • Building commissioning

Models & Ordering

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Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model Description Usually Ships* Price Order
400-10-GAGE
Ships: 1-2 Weeks
Price: $915.00
Air velocity meter, 0-10" w.c., 400-12600 FPM velocity, no Pitot tube. 1-2 Weeks* $915.00 Order
400-23-GAGE
Ships: 1-2 Weeks
Price: $1,272.00
Air velocity meter, 0-23" w.c., 400-19200 FPM velocity, no Pitot tube. 1-2 Weeks* $1,272.00 Order
400-5-GAGE
Ships: 1-2 Weeks
Price: $872.00
Air velocity meter, 0-5" w.c., 400-9000 FPM velocity, no Pitot tube. 1-2 Weeks* $872.00 Order

Features

  • Red figures display velocity in FPM and black figures display air pressure in inch w.c.
  • No conversion tables needed for air at standard conditions
  • Available with Pitot tubes and carrying case

Options

  • Contact factory for extra long steel cases for use with longer Pitot tubes.

Accessories

Model Number Description Usually Ships* Price Order
1 oz dispenser bottle of red gage fluid, .826 sp. gr. A-101 1 oz dispenser bottle of red gage fluid, .826 sp. gr. Next Day $7.50 Order
4 oz bottle of red gage fluid, .826 sp. gr. A-102 4 oz bottle of red gage fluid, .826 sp. gr. Next Day $14.50 Order
1 pt bottle of red gage fluid, .826 sp. gr. A-103 1 pt bottle of red gage fluid, .826 sp. gr. Next Day $33.00 Order
1 qt bottle of red gage fluid, .826 sp. gr. A-104 1 qt bottle of red gage fluid, .826 sp. gr. Next Day $62.00 Order
1 oz dispenser bottle of blue gage fluid, 1.910 sp. gr. A-110 1 oz dispenser bottle of blue gage fluid, 1.910 sp. gr. Next Day $140.00 Order
1 pt bottle of blue gage fluid, 1.910 sp. gr. A-111 1 pt bottle of blue gage fluid, 1.910 sp. gr. Consult Factory $1,833.00 Order
A-431 Steel carrying case for air velocity meter, No. 400-5. 1-2 Weeks $176.00 Order
A-433 Steel carrying case for air velocity meter, No. 400-10. 1-2 Weeks $164.00 Order
A-536 Metric air velocity calculator slide chart. Next Day $11.00 Order
Air velocity calculator slide chart. A-532 Air velocity calculator slide chart. Next Day $10.00 Order

Drawings

Questions

Question
Is routine maintenance required for a Dwyer red gage fluid type manometer?
Answer
Yes. The zero point should be checked periodically as well as the fluid level. After a year of service, particularly with dirty air, the fluid should be replaced to assure that specific gravity changes are not affecting the accuracy of the reading.

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