Lightobject.com Support Forum

I have ordered above flow device but need advice on electronics to do the following:

I want to trigger a relay when flow gets low (on a engine cooling system), would be good to be able to display flow (but not essential). Would need to be able to "calibrate" trip point. Whole thing needs to be small 1/16 DIN if panel mounted.

Is a frequency controller an option to do this?

This is on 250 Superkart, I have used the JLD 7100 (12V dc) controller to great effect on fan control on the same sort of cooling system.

I just imported a counter device and I think it may works for you. Once I finished the picture, I'll post it to here. Plus, I need to do manual for it

Great, Thanks

See this counter. It's a 6 digit counter and I need do some study to see how it works. What I think so far is that, you hookup the water-flow sensor (5V pulse output) to the counter's Input and do a measure on how much water in a bucket, then use that volume to compare the number of counting on the controller. That way you can come up a simple formula: Counts vs. volume.

Anyway, I got to spend time to do the test. In the mean time, I'm just a little bit busy setting up my Pro Shop (garage remodeling) ha..ha...

The flow element has a calibrated pulse rate indicated on the data (pules per litre) so test might not be necessary.

Does the controller have output switches like the JLD 7100? Do you have these already?

Yes, I do have 20 in stock. I'll post it on the web soon