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Dwyer

490A Hydronic Differential Pressure Manometer

Versatile, handheld, battery operated manometers

Starting at
$1,758.23CAD
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Have questions? We're here to help!
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The Series 490A Hydronic Differential Pressure Manometers are versatile, handheld, battery operated manometers available in several basic ranges for positive or positive differential pressure measurement and can tolerate most liquid media compatible with 316LSS. A new feature added to the Series 490A is a field adjustable damping, which allows the user to choose the level of display averaging rate corresponding to the fluctuation level common in many applications.

The Series 490A-HKIT features the 490A Hydronic Differential Pressure Manometer and all the necessary attachments and accessories to meet all your balancing, measuring, and pressure needs. 

 

The hydronic meter kit includes: two (2) six foot high-pressure rated tubing with shut off valves, one (1) high pressure 3-way valve two (2) controlled bleed valves,, one (1) 8 ft poly tubing for purges, one (1) hard travel case, one (1) handheld carrying strap, two (2) 1/16 in x 1-1/2 in pressure gage adapters, two (2) 1/8 in x 3 in pressure gage adapters, two (2) 1/8 in x 1-1/2 pressure gage adapters, two (2) male 90° flare to 1/4 in NPT fittings, two (2) male flare to 1/4 in NPT couplet fittings, one (1) adjustable 8 in wrench, PTFE Tape, one (1) magnetic protective rubber boot. NIST Calibration Certificate comes standard.

• Seven user-selectable English and metric units
• Stores up to 40 readings for later recall
• Backlight for use in dim areas
• Digital dampening for low pressure - high resolution logging accuracy
• Automatic resolution adjustment for finer control
ServiceCompatible gases & liquids
Wetted MaterialsWithout valve: 316L SS,
3V option: 316LSS, Buna-N, silicone, grease, PTFE, brass 360, copper, reinforced acetal copolymer.
HKIT Option: 316LSS, PTFE, Brass, Copper
Accuracy± 0.5% FS, 60°F - 78°F (15.6 to 25.6°C);
± 1.5% FS from 32°F - 60°F and 78°F - 104°F (0°C - 15.6°C and 25.6°C - 40°C)
Pressure Hysteresis± 0.1% FS
Pressure LimitsSee chart on catalog page
Electronic Temperature Limits32°F - 140°F (0 to 60°C)
Process Temperature Limits with -HKIT-20°F - 180°F
Storage Temperature Limits-4°F - 176°F (-20°C - 80°C)
Display0.42 in (10.6 mm) 4 digit LCD
ResolutionSee chart on catalog page
Power Requirements9 V alkaline battery, installed non-functional, user replaceable
Process ConnectionsTwo (2) 1/8 in (3.18 mm) female NPT;
HKIT Option: Two (2) male 45 Flare 1/4 in
Weight14.1 oz (400 g)
Agency ApprovalsCE
• Chiller to coils for freeze protection
• Hydronic valve balancing
• Measure pressure drop across pumps
• Refrigerant pressure testing
 

  • Thumbnail of document Manual - 490A Hydronic Differential Pressure Manometer
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    Manual - 490A Hydronic Differential Pressure Manometer

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  • Thumbnail of document Data Sheet - 490A Hydronic Differential Pressure Manometer
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    Data Sheet - 490A Hydronic Differential Pressure Manometer

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  • Thumbnail of document Brochure - 490A Hydronic Differential Pressure Manometer
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    Brochure - 490A Hydronic Differential Pressure Manometer

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  • Thumbnail of document Brochure - 490A Hydronic Differential Pressure Manometer
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    Brochure - 490A Hydronic Differential Pressure Manometer

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