Hi,

 

I'm using a Dual Analog In bricklet to measure some water flow.

The sensor I'm using requires DC 5V Power supply and reports

its value in a range of 0.5V to 3.5V.

So, I've connected the Bricklet to the flow device this way:

- 5.0V Output pin '+' to the 5V

- 5.0V Output pin '-' to Ground

- +/-35V Input 1 'pin 0' to flow analog signal

- +/-35V Input 1 'pin 1' to 5.0V Output pin '-'

This allows me to get some value but it with some kind of offset (around 700mV)

regarding to the expected value.

According to the technical support's answer I got from the manufacturer of the device, I should connect the PE of the flow sensor to the equipment which is used to measure the signal of the device.

I'm not sure how I would do this (I guess it would be to the 5.0V Output pin '-' to Ground), so any advise would be welcome.

Thanks in advance for your help.

Regards.

Hi,

 

So, I've finally connected the PE to the Dual Analog In Bricklet GND and this did the job.

Regards.