Lj U3 and force sensor | LabJack
 

Lj U3 and force sensor

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lucian_v
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Lj U3 and force sensor

Hi all, 

I have a force sensor which has 4 wires. 2 of them have to power on 8v( i use a 9v battery) , and on other 2 if i read with a multimeter i get mili volts when i press it..so it s working..

My question is how should i connect it to lj and how to set lj to read it? 

LabJack Support
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Before we connect your sensor

Before we connect your sensor we need to get a little more information.  Do you know what the voltage span of the output is?  Are you using a U3 HV or LV?

LabJack Support

lucian_v
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Hi

Hi

This is the sensor

this HTML class. Value is http://www.keli-cee.

I am using hv version

LabJack Support
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Which force tranducer are

Which force tranducer are using specifically, i.e., single point, comrpession, s-type.

lucian_v
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I am sorry. The link was

I am sorry. The link was corrupted

www.keli-cee.com/product-SQB-A,2.html

LabJack Support
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What is the rated load for

What is the rated load for your particular transducer?

lucian_v
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I am not sure i understand

I am not sure i understand the question

LabJack Support
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The link you provided shows

The link you provided shows 12 different options from 0.25t to 10t, so we were wondering which you have.

More importantly though, your force sensor appears to be a raw bridge circuit, so you are going to need an amplifier such as the LJTick-InAmp to measure it with the U3.  Start here:

http://forums.labjack.com/index.php?showtopic=4376

lucian_v
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Hi,

Hi,

I want to use the one of 0.3t, 5t and 10t.

LabJack Support
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In any event, the output from

In any event, the output from the bridge at rated load will be small (< 40mv) so you must amplify the signal to get the best resolution.  The LJTick-InAmp is a great option: 

https://labjack.com/accessories/ljtick-inamp