Connecting onto ADC-20 Terminal Board

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Connecting onto ADC-20 Terminal Board

Post by Grizzly_Gra » Fri Mar 02, 2018 9:00 am

I have a PicoLog ADC-20 with a plug in terminal board and looking for a little guidance for getting started on a project we are looking at.

What I need to do is link on a pressure sensor and measure a voltage. The pressure sensor has a 4-20mA output and the voltage is a nominal 24vDC (only need to confirm power on / off against the pressure reading).

Can someone please give guidance on how to link these to the terminal board.

Thanks for any help given.

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Re: Connecting onto ADC-20 Terminal Board

Post by Martyn » Fri Mar 02, 2018 10:51 am

Referring to the Terminal Board Guide

Section 2.1.3 shows how to reduce the 24V to an acceptable range for the ADC20 input

Section 2.2 Shows how to measure current. For 4-20mA if you use a 120 Ohm resistor you will get 0.48V to 2.4V
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