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post #11 of 74
Quote:
Originally Posted by giltyler View Post

The CW611 looks to have everything I need in one package so it will be a contender for sure.

Anyone have thoughts on the PHOBYA controller I linked?? they state it is a fan/pump controller.
I have all PHOBYA rotary compression fittings in my loop along with their 200mm radiator and I have had no trouble with any of those parts

They might be good for you, but not what I would go for:

- Voltage controllers produce a ton of heat
- Not input capability for a flow meter that reads both liter/hr and gal./min.
- Not enough voltage/channels for me. I got all my six 36W channels maxed out with 39 fans, 2 pumps, 2 flow meters, and LED control.
- No ability for auto or manual control. Only manual. On mine, I set it up and forget about it....forever. It becomes just a nice front panel ornament after the first week.
Edited by PepeLapiu - 4/10/14 at 8:06pm
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post #12 of 74
Phobya UltraGuide 10 Controller 12W per channel, is that decent?
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post #13 of 74
Quote:
Originally Posted by PepeLapiu View Post

I has a Touch, very good controller, until it died.
Apparently you can't run 40W of fans on a 30W channel.....go figure that one out!?! rolleyes.gif
But I'm glad I burned it up, cuz that made me buy the CW611. And tho the Touch is great, the CW611is far better.
The CW611 will definitely be my replacement if I ever get a new fan controller.
post #14 of 74
Quote:
Originally Posted by PepeLapiu View Post

The CW611 has the ability to control your D5 and that is a big bonus, even it your pump is a Vario model.

The Vario pumps undervolt to control speed, so they will get hotter as you reduce the speed. And that heat gets dumped into your loop.
But if you control it with your controller, it won't run as hot, and will dump less heat into your loop.

And the CW611 is a voltage controller, not a power modulater like the Lamptron Touch.
So it will reduce voltage, just like a potensiometer controller would do, but with much less heating up.

I don't know how the CW reduces voltage without creating a ton of heat, but it does it.
A mystery wrapped in an enigma, rolled into a secret!

Here are the things I don't like about it:

- Minimum threshold temp set to 25° C minimum. Not a good idea at all. What were you smokin' Lamptron guys? But if you have a dT of 7° C or more (water around 27° C or more) that won't be a issue for you.
- Turn knob glitchy. You'll see what I mean after 2-3 minutes of use. Not a big deal, just a bit annoying is all.

That isn't how D5's work. They don't use simple resistance based undervolting to control their speed. That is why if you do undervolt a D5 vario its speed doesn't change much. So they don't get hotter as speed is reduced, quite the opposite.

The CW611 is a decent device. Mine has stopped controlling the voltage on one of its headers though, just full 12V all the time.
Edited by Jakusonfire - 4/11/14 at 5:12am
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post #15 of 74
Okay....how they do it than?
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post #16 of 74
It is an internal motor speed control circuit. How it works exactly I'm not sure but its quite complex. If it was simple Rheo control they wouldn't have the complex internal circuit boards. Ive seen some claim it uses an internal PWM system but Laing would have to confirm that.

The D5 Vario and the D5 PWM use the same circuit boards but with differing components on the boards in key places. Clearly neither of us are electronics experts but its just not as simple as you assume. There are many types of voltage reduction and speed control.

This is not from Laing but is an example of a DC motor control that is set with a control Pot
"The efficiency of electronic speed controllers is due to the use of a 'chopper' or PWM (Pulse Width Modulated) circuit. The alternative to the chopper is voltage dropping through the introduction of circuit resistance. This is a grossly inefficient way to regulate voltage necessitating a physically large variable resistance capable of dissipating the waste heat energy. Not a practical solution in most cases and most certainly, a profligate waste of energy and resources.

The switching frequency of the PWM may typically be around 400 cycles per second and the duty cycle is varied according to the desired motor speed. This simply means that the ratio of ON time to OFF time is varied depending on the setting of the control pot."

Your dislike of "voltage control" just needs to be varied a little to a dislike of resistive voltage control. Voltage control is not necessarily resistive based.
Edited by Jakusonfire - 4/11/14 at 8:38am
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post #17 of 74
Thread Starter 
Maybe someone who knows how the variable speed works on the D5 units will chime in I sure do not know but would like to learn.

Benjamen

Any controller with 12 watts would be too small for a pump
post #18 of 74
Thread Starter 
This link explains several key features of how it works.
http://acousticpc.com/laing_d5_water_pump.html
post #19 of 74
Thread Starter 
CW611 looks to be my solution now what coolant temperature fittings?
Will one of the CW611 probes read internal case temperatures accurately?
Could one of the probes be used to read ambient air temperatures in the Room
post #20 of 74
Quote:
Originally Posted by giltyler View Post

CW611 looks to be my solution now what coolant temperature fittings?
Will one of the CW611 probes read internal case temperatures accurately?
Could one of the probes be used to read ambient air temperatures in the Room

To measure water temp, you can just use one of the 6 temp sensors included with the CW611. You just tape it to a rad, and cover it up with thermal tape. Many guys swear this is an accurate way of measuring water temp. Or you could buy one of these like I did.

The temp sensors provided with the CW611 will read whatever air temperature you place the sensor in. So it will certainly read case temp, ambient temp, and so on.......
I found them to be accurate within less than 0.3° C.
The CW611 will let you choose °F or °C but most water coolers opt for Celsius read-outs.

And if you are wanting to keep an eye on.your water flow, you can connect one of these flow meters to one of your CW611 channels to display your flow in either gal./min or liter/hr.
And if you do get that flow meter, don't forget to buy this adapter as well to go with it.
Edited by PepeLapiu - 4/12/14 at 10:33am
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