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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: jk999 on February 20, 2015, 08:11:53 pm

Title: pulse width controller
Post by: jk999 on February 20, 2015, 08:11:53 pm

I have a 12v 40 v 10amp pulse width controller , im making my own pump box with volt meter , question is what maximum size pump and battery can I use with this switch without burning it out cheers kev

Title: Re: pulse width controller
Post by: CleanClear on February 20, 2015, 10:38:50 pm

Quote from: jk999 on February 20, 2015, 08:11:53 pm

I have a 12v 40 v 10amp pulse width controller , im making my own pump box with volt meter , question is what maximum size pump and battery can I use with this switch without burning it out cheers kev

As far as i'm aware there is no readily available battery above 12 Volts. You controller is rated 40 Volts max ? So the maximum practical sized battery you will use will be a 12 Volt battery.

Pumps generally are 12V, 110V or 240V. So you'll be getting a 12V one.

Sureflo, flowjet etc............same as everyone else.

Title: Re: pulse width controller
Post by: jk999 on February 20, 2015, 10:49:27 pm

Cheers . Reason for my question  is I bought a pulse  switch a couple off  years  ago built a controller  put to a 100 psi sure flow pump  and it burnt the switch  out don't think the amps was 10 amps

Title: Re: pulse width controller
Post by: Tom White on February 20, 2015, 10:55:28 pm

This is the one I use:

http://www.ebay.co.uk/itm/10A-12V-40V-PWM-DC-Motor-Speed-Control-Switch-Controller-Volt-Regulator-Dimmer-/121250426718?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item1c3b16af5e

My two (two man system) have been going great since last Summer; not a single problem.

Though there's similar ones with a length of cable from the circuit board to the dial, which I might use next time.

The other stuff I bought is on here:

http://www.cleanitup.co.uk/smf/index.php?topic=192847.0

Title: Re: pulse width controller
Post by: CleanClear on February 20, 2015, 10:57:00 pm

Quote from: jk999 on February 20, 2015, 10:49:27 pm

Cheers . Reason for my question  is I bought a pulse  switch a couple off  years  ago built a controller  put to a 100 psi sure flow pump  and it burnt the switch  out don't think the amps was 10 amps

I done the same. I think the ones i got where 8amps (or even less), they worked but they melted a bit. I should of got the clue from how thin the wires on it where.

Title: Re: pulse width controller
Post by: jk999 on February 21, 2015, 12:27:22 am

Tosh dont forget about the question I asked you about volt meter on your thread about controller for 15 pounds

Title: Re: pulse width controller
Post by: rosskesava on February 21, 2015, 01:13:40 am

If it can do 40V at 10 amps, at 12V that's roughly 35 amps although you cannot always go by what is written when it comes to things from China.

Title: Re: pulse width controller
Post by: Spruce on February 21, 2015, 07:51:48 am

Quote from: rosskesava on February 21, 2015, 01:13:40 am

If it can do 40V at 10 amps, at 12V that's roughly 35 amps although you cannot always go by what is written when it comes to things from China.

 ;D

I would see it the other way round Ross - 10 amp max at the lowest voltage.

Title: Re: pulse width controller
Post by: jk999 on February 21, 2015, 08:47:54 am

All this foreign language does my head in lol  ;D

Title: Re: pulse width controller
Post by: slap bash on February 21, 2015, 10:10:19 am

Most of the controllers are 3 amp or 10 amp a on e bay but I searched one of 20 amp as the 3/10 amp are touch and go so i only use the 20 amp controller and use the fuse I might need e.g. 10 or 15 mp fuse.This way my controller is always safe. This combination will cover most pumps I use a 10 lit pump and its fine. Which cost me a few controllers.

Title: Re: pulse width controller
Post by: Tom White on February 21, 2015, 10:58:56 am

Quote from: jk999 on February 21, 2015, 12:27:22 am

Tosh dont forget about the question I asked you about volt meter on your thread about controller for 15 pounds

I will do it today,mate, (hopefully). ;D

Title: Re: pulse width controller
Post by: jk999 on February 21, 2015, 12:30:10 pm

Cheers  tosh