AVR-Chat

I've been looking at VEGA stuff lately for liquid level detection purposes.

http://www.vega.com/au/Level_measurement_ultrasonic_VEGASON63.htm

this does what you want.... just.... It is a loop powered 4-20mA acoustic
probe, and so you just sit it above the water, and then give it 24V on its
positive terminal, then run its negative terminal into a 100R resistor to
system ground, which will give you a voltage range of 0.4V to 2V you can
measure with an ADC...

Or you could implement a serial-HART modem and you can query it via HART,
and even setup its parameters from your application, too.

But really, for measuring 15m, you have a LOT more choice if you go radar.
And a lot more ability to measure greater range if needed. These probes are
also 4-20mA loop powered devices, so power consumption will be the same... 

http://www.vega.com/au/Level_measurement_radar_VEGAPULS62.htm




-----Original Message-----
From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of Muhammad Amiruddin
Sent: Monday, 11 May 2009 12:39 PM
To: AVR-Chat@yahoogroups.com
Subject: [AVR-Chat] (unknown)

Dear all,
 
please help me,
 
i want make project for measuring the level of water on the tank that
approximately 15 m high. what senssor that i should use ?
 
Is there any ultrasonic senssor wich can measure range until 15 m ?
 
rgds,
 
4mir
 


      

[Non-text portions of this message have been removed]



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