ControlTrends

Cool New ACI Training Video: The Most Effective Way to Use a Wet to Wet Differential Pressure Transducer

Monitoring differential pressure with ACI’s A/WPR2 is a great first step in saving energy with an efficient flow system. According to some estimates, pumps account for between 10% and 20% of world electricity consumption. Unfortunately, many pumps use more energy than necessary due to inefficient flow control. Varying a pump’s speed using a variable-frequency drive (VFD) on the pump motor based on the differential pressure in the system is an efficient method to control flow and save energy. Using a VFD with your pump motor is most effective in saving energy when accurate and reliable differential pressure information is provided. The tighter your control, the more efficient your system and the more energy and money you save. 

Features of the WPR2:

• Field Selectable • Field Selectable Outputs: 4-20mA, 0-5VDC, 0-10VDC

• Optional Display

• Remote Probes (no extra plumbing or 3-valve manifold necessary)

• Accuracy: +/- 1.0% FSO • Auto Zero Button

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Let’s Get Wet: The Right Way to Do Smart Building Differential Pressure Control

I am a video nerd, I believe that if a picture is worth a thousand words, then a well-done video gives you everything you need to know to make a good decision and is enjoyable to watch. Our friends at ACI have nailed it on two fronts: 1) the A/WPR is an amazingly easy to install and configure wet to wet differential pressure transmitter and 2) they have created a captivating and informative video to communicate all you need to know about the product without saying a word! I could say more, but just check out the video. [Read more…]

ACI’s New Remote Wet to Wet Differential Pressure Transmitter with LCD

ACI has added a new option to the A/WPR Series! This new product has been very well received based on its ability to save on installation and set up time. It also has range and output flexibility. The final piece is an oversized display option which provides valuable real-time information including High, Low and Differential Pressure readings. The A/WPR2 Series Remote Wet to Wet Differential Pressure Transmitter is designed to reduce installation time and provide mounting flexibility, often eliminating the need for additional plumbing. They accurately measure wet media pressures in a variety of applications. Commonly used for monitoring pumps, these devices are also ideal for measuring pressure across filters, heat exchangers and compressors.

The A/WPR2’s enclosure opens conveniently to allow it to be reconfigured between three additional ranges (see order grid) and outputs of 4 to 20 mA (default), 0 to 5 VDC, or 0 to 10 VDC. The A/WPR2 Series can measure both uni or bi-directional pressure ranges as low as 10 psi and as high as 300 psi, depending on the unit. The A/WPR2 also features a push button auto zero function for remote calibration. The LCD option will display pressure values for both the High and Low side pressures, a differential pressure value, “OVR” for values over the specified range, “ERROR” for differential pressures out of range, and “ZERO” when the auto-zero is in process. The A/WPR2 Series is covered by ACI’s Five (5) Year Limited Warranty. The warranty can be found in the front of ACI’s Sensors & Transmitters catalog.

DESIGN CHANGES

A/WPR2 SERIES NOW OFFERS A DISPLAY OPTION
FOR MAXIMUM LINE PRESSURES BETWEEN 100 AND 300, YOU SHOULD SELECT THE A/WPR2-300 SERIES
FOR MAXIMUM LINE PRESSURES LESS THAN 100 PSI, YOU SHOULD SELECT THE A/WPR2-100 SERIES
RANGES FOR THE A/WPR2 SHOULD BE SELECTED ON THE MAXIMUM EXPECTED DIFFERENTIAL PRESSURE RATHER THAN THE MAXIMUM LINE PRESSURE SUCH AS THE A/WPR FEATURED
THE LOWEST RANGE ON THE A/WPR2-100 IS NOW 10 PSI VERSUS 15 ON THE A/WPR
THE LOWEST RANGE ON THE A/WPR2-300 IS NOW 30 PSI VERSUS 45 ON THE A/WPR

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