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Series-490A
Handheld Hydronic Differential Pressure Manometer, Adjustable Damping
Models In Stock
- 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
Series-490A
From
C$
1,547.24
Models In Stock
Product Overview
- Accuracy ± 1.5 %
- Accuracy Detail ± 0.5% FS, 60 to 78°F (15.6 to 25.6°C); ± 1.5% FS from 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C)
- Applications Oil, Pump Control, Refrigeration, Refrigeration Equipment
- Battery Size and Type Alkaline 9V
- Display Note 0.42" (10.6 mm) 4 digit LCD
- Display Type LCD
- Hysteresis ± 0.1%
- Materials, Wetted 316L Stainless Steel
- Media Compatibility Clean dry air / inert gas, Clean process / cooling water, Compatible Liquids, Inert / non-reactive gases, Oils / lubricants, Organic solvents, Water
- Number of Digits 4
- Operating Temperature, Max 140 °F
- Operating Temperature, Min 32 °F
- Port 1 Size 1/8 in
- Port 1 Type NPT Female
- Measurement Pressure, Min 0 psi
- Measurement Pressure Type Differential
- Series ID Series-490A
- Storage Temperature, Max 176 °F
- Storage Temperature, Min -4 °F
- Supply Power Note 9 V Alkaline Battery, Installed non-functional, User Replaceable
- Supply Power Type Battery
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.
NEW! 490A-HKIT Option is located in the Product Configurator.
Hydronic meter kit includes: (2) six foot high-pressure rated tubing with shut off valves, high pressure 3-way valve, 8 ft poly tubing for purges, hard travel case, handheld carrying strap, 1/16" x 1 1/2", 1/8" x 3" and 1/8" x 1-1/2" pairs of pressure probes, 90° Flare to 1/4" NPT fittings, adjustable 8" wrench, PTFE Tape, and magnetic protective rubber boot. NIST Calibration Certificate comes standard.
Product Applications
- Chiller to coils for freeze protection
- Hydronic valve balancing
- Measure pressure drop across pumps
- Refrigerant pressure testing
PDFs & Manuals
Accessories
accessories
Carrying case for most manometers; tough, gray nylon pouch, double zippered with belt loop
C$86.79 / each
3342 In Stock
consumables
Show Ratings & Reviews
Rated 5 out of
5
by
Anonymous from
FAA Service Information Directive (SID 97-3G)
It is an excellent option to comply with an aircraft Continental piston engines fuel adjustment
Date published: 2025-12-03
What does the Hkit include?
Hello,
Hydronic meter kit includes: (2) six foot high-pressure rated tubing with shut off valves, high pressure 3-way valve, 8 ft poly tubing for purges, hard travel case, handheld carrying strap, 1/16" x 1 1/2", 1/8" x 3" and 1/8" x 1-1/2" pairs of pressure probes, 90° Flare to 1/4" NPT fittings, adjustable 8" wrench, PTFE Tape, and magnetic protective rubber boot. NIST Calibration Certificate comes standard.
Date published: 2025-12-16
Will this show me Litres per second?
Please see available Engineering Units below:
psi, in w.c., in Hg, cm w.c., mm Hg, kPa, hPa, mbar, bar, oz/in2
Date published: 2025-05-07
