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HM3531GMZ310

Series 490A Hydronic Differential Pressure Manometer

Liquid & Gas Pressure Measurement, ±0.5% FS Accuracy

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.

California Residents: Click Here for Proposition 65 WARNING.

Product Applications

Chiller to coils for freeze protection
Hydronic valve balancing
Measure pressure drop across pumps
Refrigerant pressure testing

Starting at $1,069.50

Ordering

Grouped product items
Model	Description	Availability*	Price
490A-1	Wet/Wet handheld digital manometer, 0 to 15 psi (0 to 103.4 kPa)	1-3 days*	$1,069.50
490A-2	Wet/Wet handheld digital manometer, 0 to 30 psi (0 to 206.9 kPa)	1-3 days*	$1,069.50
490A-3	Wet/Wet handheld digital manometer, 0 to 50 psi (0 to 344.8 kPa)	1-3 days*	$1,069.50
490A-4	Wet/Wet handheld digital manometer, 0 to 100 psi (0 to 689.5 kPa)	1-3 days*	$1,069.50
490A-5	Wet/Wet handheld digital manometer, 0 to 500 psi (0 to 3448 kPa)	2-3 Weeks*	$1,069.50
490A-6	Wet/Wet handheld digital manometer, 0 to 200 psi (0 to 1379 kPa)	1-3 days*	$1,069.50

Specifications

Service:: Compatible gases & liquids.
Wetted Materials:: Without valve: 316L SS, -3V option: 316LSS, Buna-N, silicone, grease, PTFE, brass 360, copper, reinforced acetal copolymer.
Accuracy:: ±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).
Pressure Hysteresis:: ±0.1% FS.
Pressure Limits:: See chart on catalog page.
Electronic Temperature Limits:: 32 to 140°F (0 to 60°C).
Storage Temperature Limits:: -4 to 176°F (-20 to 80°C).
Display:: 0.42" (10.6 mm) 4 digit LCD.
Resolution:: See chart on catalog page.
Power Requirements:: 9 V alkaline battery, installed non-functional, user replaceable.
Process Connections:: Two 1/8" (3.18 mm) female NPT.
Weight:: 14.1 oz (400 g).
Agency Approvals:: CE.

Features

Support Library

Approvals

Drawings

Model Chart

EXAMPLE	490A	1	AT	Series 490A-1-AT Wet/Wet Handheld Digital Manometer, range 0-15.00 psi, with aluminum tag.
SERIES	490A			Wet/Wet Handheld Digital Manometer
RANGE		1 2 3 4 5 6		0-15.00 psi 0-30.00 psi 0-50.00 psi 0-100.0 psi 0-500.0 psi 0-200.0 psi
OPTIONS			AT COC FC NIST ST 3V	Aluminum Tag Certificate of Calibration Factory Calibration Certificate NIST Traceable Calibration Certificate Stainless Steel Tag 3-Way Valve with Bleed Screw (100 psi max

FAQ

Reviews

Accessories

Model	Description	Availability*	Price
A-47X-BOOT	Rubber boot for manometers (manometer not included)	1-3 days*	$19.00
A-HKIT-500XL	Pressure test plug adapter for the 490A-HKIT, 1/8˝ dia x 3˝ length (2 per kit)	1-2 Weeks*	$183.00
A-HKIT-AFIT	Adapter kit, includes pairs of SAE 1/4" adapters and elbow fittings.	1-2 Weeks*	$72.50
A-HKIT-500	Pressure test plug adapter for the 490A-HKIT, 1/8" dia x 1-1/2" length (2)	1-2 Weeks*	$103.00
A-HKIT-HOSES	One pair red & blue 60" SAE replacement hoses for the 490A-HKIT, each with integral ball valve	1-2 Weeks*	$307.00
A-HKIT-BFIT	Adapter fitting kit, includes pair of bleed fitting assemblies.	1-2 Weeks*	$72.50
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*	$149.00
A-402A	Carrying case for most manometers; tough, gray nylon pouch, double zippered with belt loop	1-3 days*	$60.00

HM3531GMZ310

Series 490A Hydronic Differential Pressure Manometer

Product Applications

Specifications

Features

Product Literature

Manuals

Catalog Pages

Product Data Sheet

SlideShare

Approvals

Drawings

Model Chart

Questions