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Portable open channel flow monitor with internal logger

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VISA 460 FMP

French version
 
Autonomous flowmeter usable on open channel (flume, weirs) The 460FM portable flow monitor is designed for use in the widest variety of open channel sites. It can operate with its own ultrasonic sensors on different types of flumes, weirs and V notches or even be set up to monitor flow in obscure or non standard locations.
Additionally two channels are programmed to receive any 4-20mA signal and as such can be used with other sensors or even be linked to monitor flows in pipes.

Setting up the flow monitor is made easy by following simple prompts displayed on the screen. Each stage of the procedure asks the operator to enter site information, leaving all the calculations to the 460. Four keys on the front panel provide the means of setting up the unit even for the most complex of open channel sites.
An unique feature of the flow monitor is its graphical display. In operation each channel can show the flow profile for the current day and any previous days stored within the instruments memory. This permits the user to easily pick out trends, peaks and troughs or unusual events without having to retrieve data from a computer or without the problems associated with chart recorders.

The portable flow monitor is supplied in a weatherproof cabinet complete with a protective carrying cradle. This provides good protection against damage when used in typical field conditions. Internal batteries run the instrument for up to a month with the option of an extra power supply if longer surveys are being considered.

Relay outputs for control samplers.
Ultrasonic sensor to measure open channel flow with the best accuracy
The 460FM is of major value to those who rely on accurate flow data. Particularly useful for carrying out many types of field surveys or for simply checking the accuracy of existing flow and level meters. Whether down a damp and dingy sewer or on the bank of a stream in summer, the 460FM will provide that elusive flow information.
Alternative to ultrasonic sensor and to bubble measurement in terms of open channel monitoring OPEN CHANNEL WITH IMPORTANT FOAM ? FLOATING? YOU LOOKING FOR AN ALTERNATIVE TO THE MEASUREMENT ULTRASONIC OF FLOW WITHOUT THE DISADVANTAGES OF A BUBBLE ?

The ultrasonic sensor is replaced by a pressure sensor immersed. It uses no moving parts. Completely freeing surface conditions, it allows real action, where the ultrasonic sensor would be impossible to implement All the advantages of bubbling flow without its drawbacks (mechanical compressor, sealing and condensation in the piping, removal of limited flow from the measuring point...).
PC SOFTWARE

A comprehensive software package for data retrieve and archive is available to allow simple interpretation of the stored information.
Example of discharge on EXCEL software
The ultrasonic sensor to measure open channel flow installed in a very short time by using the portable mounting bracket VERY EASY INSTALLATION

With the mounting bracket proposed option, the ultrasonic sensor can be installed on many open channels counting in minutes. Fully adjustable in 3 dimensions for ultra quick mounting on various walls. The 2 adjustable bars allow placement sensor above or below the wall.

Flowmeter usable with solar power
 
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