Product category:
Level and tank contents instrumentation
News Release from: Automation Products Group | Subject: LPU-2428
Edited by the Processingtalk Editorial
Team on 20 December 2007
New APG loop powered ultrasonic level
sensors
Automation Products Group has introduced the LPU-2428 loop powered ultrasonic level sensors, using microprocessor control to internally perform volume, flow, and totalisation calculations
These IP65 rated sensors provide a 1 to 25ft (0.3 to 7.62m) detection range They are specifically designed for liquid flow-rate and volume measurement applications, and are also a good solution for determining distance and level
This article was originally published on Processingtalk on 27 May 2008 at 8.00am (UK)
Related stories
Pressure transducers for hazardous areas
The APG PT-400 Pressure Transducers offer cost effective and durable solutions in applications requiring high accuracy and reliability over wide range of pressures
Submersible level sensor with unique reusable cage
Submersible liquid level/pressure transmitters from Automation Products Group are now cCSAus certified for use in hazardous locations
For determining flowrates, formulae for a variety of flumes and weirs are built into the sensors.
These include Parshall flumes, cut-throat flumes, California-pipe weirs, rectangular weirs, and V-notch weirs.
Equation-based calculations are also possible.
LPU-2428 sensors provide an output directly proportional to the flow rate, and users can select flow rate units of per second, per minute, per hour, or per day.
Standard volume units include cubic feet, millions of cubic feet, gallons, cubic meters, or litres.
For volume measurement, the sensors have built-in formulas for most industry-standard tank shapes.
LPU-2428 sensors feature a rugged PVDF (Kynar) transducer housing and PC/PET chemical resistant sensor housing, and are easy to install using industry standard 2-inch NPT fittings.
These sensors can operate in temperatures from -40 to 140F (-40 to 60C) and deliver 0.1 inch (2.5 mm) resolution, with accuracy of +/- 0.25% of the detected range, and response time of 0.6 to 3seconds depending on the output range.
The LPU-2428 features internal temperature compensation to automatically account for changes in ambient temperature, as well as filtering options to account for other variables such as waves on a liquid or tank irregularities.
They are unaffected by the colour/translucency, dielectric constant, specific gravity or viscosity of the target.
Internal parameters are set up using a remote keypad and display unit.
• Automation Products Group: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
