What are people using for power cut-off if the water pump fails?

Lasers
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1

What are people using for power cut-off if the water pump fails?
Wiring diagrams greatly appreciated :slight_smile:

2

I am using a flow sensor that triggers an arduino board to display a message on the LCD screen as well as triggering a 5V relay to kill the power to the laser.

3

@Phillip_Conroy let me know about these flow switches. I’d imagine you can just run them inline with the power feed to the laser tube.

4

I hooked mine up to the laser enable button low voltage do not hook upto high voltage at tube 22,000 volts ,will kill you

5

I bought a cheap flow sensor from lightobject and mounted it on the rear and wired it to the laser on switch. Works well for me. There’s a photo here. You can click on the link for a larger view.

6

@Phillip_Conroy Thanks for giving that extra info Phillip. Wouldn’t want any of us to get zapped.