I am new to DT80, I would like to connect 4 wire LVDT to my dataTaker dt80.
I don't know how to connect. I am searching for solution but i didn't get.
It is 10V 4-20 mA input wiring range 0-25 mm. Please help me

Hi Prabhakar,

4 wire LVDT indicates two pairs connection to power and output.
You will need to power up this LVDT sensor with 10V (depending on model sometimes 12V supply is OK which you can tap from the same dataTaker power),
then use a current (4-20 mA) channel to read the output.

You may choose to use a 100 ohm internal shunt resistor (wiring between #/EXT #) or 1 100 ohm external shunt resistor (wiring between */#, +/#, -/#, +/-) for tapping the output signal.
Then apply scaling from 0-100% to 0-25 mm (please note 4-20 mA channel will give you percentage output).

Best regards,
Rudy Gunawan

Thank you very much sir

I am using 3 wire Hall effect sensor ( flow meter) 0-60 l/min. 5-24 V. 15 mA.
Please guide me how to connect and configure.

Hi Prabhakar,

Hall effect flow sensor sends a pulse on each rotation, so you will need to use counter channel.
From those 3 wire, I presume each will be used for input 5V (red?), ground (black?) and pulse output (yellow?).

Connect red and black wire to power up the sensor, yellow goes to 1C terminal and the same black wire goes to D Gnd.
Then declare your channel as 1HSC.

Best regards,
Rudy Gunawan

Hi sir,
Thank you for you support. Now Flow sensor is working. But how to calculate one Liter / min?
330 counters are equal to 1 liter. How to scale it. plss.

Prabhakar

Hi Prabhakar,

If you declare this counter channel on one minute sampling rate, then the scaling would be:

S1=0,1,0,330

RA1M
1HSC(=1CV,R,S1,"Count~pulses" )
1CV("Flow~liter" )

Channel variable 1CV will hold a conversion value since there is a scaling S1 in high speed counter channel .

Best regards,
Rudy Gunawan