Series 490W Hydronic Differential Pressure Manometer

Liquid and Gas Pressure Measurement, 2% of Reading Accuracy

Series 490W Hydronic Differential Pressure Manometer is the most accurate and easy to operate manometer on the market. By using wireless transducers and a versatile handheld, a single operator can monitor and balance a hydronic system in less time than traditional hydronic balancers. The Series 490W utilizes mobile technology to communicate via a Bluetooth connection with the transducers to monitor differential pressure and flow on up to three different valves. Being wireless means there are no hoses to carry, snag on equipment or needing to be drained. The 490W includes the Dwyer Hydronic Application Software that contains valve charts for numerous manufacturers.

Dwyer Instruments, Inc. was recognized for excellence in product design in the 16th annual Dealer Design Awards program sponsored by The Air Conditioning Heating & Refrigeration News (ACHR News) magazine, which is the leading trade magazine in the heating, ventilating, air conditioning, and refrigeration industries. An independent panel of contractors acted as judges in the contest that had 79 entries. The company’s Hydronic Application Software was the Silver Award Winner in the Contractor Services & Software product category. The app is used in conjunction with the Series 490W and comes subsequent to the kit’s 2019 AHR Innovation Award in the Tools and Instruments category and 2018 Silver Dealer Design Award in the Electronic and Hand Tools category.

Product Applications

  • Refrigerant pressure testing
  • Hydronic valve balancing
  • Measure pressure drop across pumps
  • Measure pressure drop across chiller and coils for freeze protection

Models & Ordering

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
490W-6-HKIT
Ships: Less Than 1 Week
Price: $2,995.00
Hydronic differential pressure manometer with wireless sensors, 0-50 psid & 0-200 psid, 1/4" male NPT (2 of each range) Less Than 1 Week* $2,995.00 Order
490W-6-HKIT-NIST
Ships: Less Than 1 Week
Price: $3,104.00
Hydronic differential pressure manometer with wireless sensors, 0-50 psid & 0-200 psid, 1/4" male NPT (2 of each range) with NIST calibration Less Than 1 Week* $3,104.00 Order

Specifications

Wireless Distance:
Up to 65' (19.8 m).
Service:
Compatible gases & liquids.
Wetted Materials:
316 SS, PTFE, brass.
Accuracy:
2% of reading, ±1 psi.
Compensated Temperature Range:
14 to 140°F (-10 to 60°C).
Pressure Hysteresis:
±0.25% FS.
Pressure Range:
See chart.
Process Temperature Limits:
-4 to 185°F (-20 to 85°C).
Display:
5" Gorrilla® glass 3, touch screen, 1280x720.
Resolution:
0.01 psi.
Process Connections:
Two 1/4" male NPT.
Power Requirements:
CR2050 or CR2032 lithium battery, user replaceable.
Weight:
2 lb (907 g).
Agency Approvals:
CE, FCC.

Features

  • Rugged weatherproof handheld housing withstands 1.5 m drop test.
  • Wireless measurement of differential pressure, single pressure and air flow.
  • Share logged data directly from handheld over Wi-Fi, GSM or CDMA networks.
  • Bluetooth direct wireless communication provides range up to 65' (19.8 m).
  • The ergonomic design is much lighter and easier to work with, providing greater maneuverability and quick install setup.

Accessories

Model Number Description Usually Ships* Price Order
Pressure test plug adapter for the 490A-HKIT, 1/8 A-HKIT-500 Pressure test plug adapter for the 490A-HKIT, 1/8" dia x 1-1/2" length (2 per kit) 1-2 Weeks $47.00 Order
Pressure test plug adapter for the 490A-HKIT, 1/8 A-HKIT-500XL Pressure test plug adapter for the 490A-HKIT, 1/8" dia x 3" length (2 per kit) 1-2 Weeks $83.50 Order
Pressure test plug adapter for the 490A-HKIT, 1/16 A-HKIT-510 Pressure test plug adapter for the 490A-HKIT, 1/16" dia x 1-1/2" length (2 per kit) 1-2 Weeks $68.00 Order
Replacement sensors, (2) ea., 0-50 psid A-490W-3 Replacement sensors, (2) ea., 0-50 psid Less Than 1 Week $867.00 Order
Replacement sensors, (2) ea., 0-200 psid A-490W-6 Replacement sensors, (2) ea., 0-200 psid Less Than 1 Week $867.00 Order
Replacement sensors, (2) ea., 0-100 psid A-490W-4 Replacement sensors, (2) ea., 0-100 psid Less Than 1 Week $867.00 Order
Replacement sensors, (2) ea., 0-500 psid A-490W-5 Replacement sensors, (2) ea., 0-500 psid Less Than 1 Week $867.00 Order

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