installing LVTD to TD85G

The dataTaker DT8xG Geologgers for geotechnical applications

installing LVTD to TD85G

Postby Thaar » Fri Apr 08, 2016 6:00 pm

we have DT85G recently, and we need to connect to it 3-wires LVDT of monitran company. we did several attempts of connection and all these gave an error reading.
the lvtd features are stroke 125mm , supply voltage =9 to 24 Volts Dc(regulated) and its connection details are RED for supply volts DC , Blue for 0 volts DC and green for output(0-5).
with my regards
Posts: 2
Joined: Fri Apr 08, 2016 5:44 pm

Re: installing LVTD to TD85G

Postby Rudy Gunawan » Tue Jun 14, 2016 12:18 pm

Hi Thaar,

I am sorry for missing this post earlier.

3 wire LVDT will need an external supply between red and blue wire, then you can create a voltage channel to read the output (i.e.: green wire to 1+ and blue wire to 1-).
Please remember to use high voltage channel (1HV) or a voltage channel with attenuator enabled (1V(A)).
HV channel will give you V reading, while V channel will give you mV reading.

Then on scaling you will need to define 0 - 5 V against 0 - 125 mm
Example: S1=0,125,0,5 'HV channel
S1=0,125,0,5000 'V channel

Best regards,
Rudy Gunawan
Rudy Gunawan
Posts: 461
Joined: Sun Apr 29, 2012 12:28 am

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