Sure-Aire Monitoring System

When it comes to flow monitoring, there is only one name you need to remember: Sure-Aire. Sure-Aire gives you reliable and accurate flow measurement, without the inlet system effects and performance losses that can be caused by traditional "invasive" flow probes.

The Sure-Aire system monitors fan performance by comparing the pressure drop between the fan inlet and the pressure taps located in the inlet venturi. This allows for accurate and repeatable measurement across the entire operating range of the fan.

Seeing is believing, and to prove the benefits of the Sure-Aire system, we've prepared a video clip which provides a performance comparison of the same fan using both the Sure-Aire system as well as traditional "invasive" flow probes.

Summary of Video Contents

The video shows a QEP-20 (direct drive plenum fan) operating with both the Sure-Aire system and traditional "invasive" flow probes. The three main points of operation in the video:

Stage	Flow Measurement	CFM	FRPM	Annual Cost*	Notes
1	Sure-Aire	6100	1388	$738	none
2	"Invasive" Probes	5100	1388	$738	20% CFM reduction at the same speed
3	"Invasive" Proves	6050	1603	$833	Additional cost of $95/year

*Annual operating costs are based on 16 hours / day, daily operation ($0.06 / kW hour)

View the Sure-Aire demonstration video.

The movie file requires Windows Media Player, a free utility. To get Windows Media Player, click here.

The Sure-Air flow monitoring system is available on a wide range of products including the QEP plenum (belt and direct drive), QEI/QEID mixed flow inline and all commercial and industrial duty centrifugal fans (AFDW, AFSW, BIDW, BISW). Click on any of the preceding links to learn more about these product lines. You can also download detailed information on the Sure-Aire system below.

To order Greenheck products, including those featuring the Sure-Aire system, contact your local Greenheck sales represenative.

You can also contact a Greenheck product specialist for more details on the Sure-Aire system or other Greenheck products.

Downloadable Greenheck Literature
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(Click here for more information or to download the Acrobat reader)

Catalog:

Sure-Aire Flow Monitoring Station (417k)

Installation, Operation and Maintenance Manuals:

Dwyer Control System (570K)