load tester

[sacha35]

Well guys this is a new load tester that I have made, 4Qman and I are building a cascade and our current load tester was only good for about 150watts which will not be good enough for this load tester so I thought what I could do and have come up with this.

It has a verbal load setting with anything from 0watts right up to 500watts of which we won’t be testing this high but it is handy to have all the same, as you can see this has been made with safety in mind and has a 3amp MCB in place and full earth protection and clamp so that whatever we are testing can be earth bonded as well for added protection, this is all in line with IEE 16th edition regs.

The unit has now got to be calibrated showing what wattage is being put out to the heat source, this will be done when the cascade build has been finished as I have put a thermal cut off switch in place on this which cuts the power to the whole unit at 5c for protection, so will need some low temperatures that can hold below 5c so that I can calibrate the unit.

Anyway here are some pics for your viewing.

 

[K404]

Oh....NICE!

i`m well impressed with that

 

[bazx]

another great job

 

[Master_G]

Neat and professional, very good work.

G

 

[maverik-sg1]

Neat and professional, very good work.

G

Agreed, great job.

Mav

 

[sacha35]

Thanks for the coments guys, this has still got to be fully tested/put though load tests but will come back with the full breakdown of how well it works on S/S and cascade units.

 

[nick25]

Looks fantastic. Well done.

 

[fatty]

Looks very neat mate what incraments does it test in??

And how do you calculate the load are you going to measure the current??

Sorry its just it looks sooo nice im curious

 

[sacha35]

Hi fatty thanks for the comments mate, there is a variable on the main supply to the heater unit, this will allow the current to be set from 0 to 500 watts, as said earlier this unit will be calibrated using a calibrated watt meter on the main incoming supply and when the unit is being tested I will mark out these setting on the case via the variable switch, I hope to be able to set this in increments from 0-50-100-150-200-210-220-230-240-250 right up to 500watts.



I should be able to test some of this on a S/S this weekend, but the real test will be on the cascade unit 4Qman and myself are building, of course we won’t be using this unit at 500 watts or even close but when and if these CPU continue to grow with the current trend I.E multy core then it might be used for say an 8 or 16 core chip.



Set pic for info

 

[fatty]

Nice 1 are you using a single 500W heater or various heaters??

 

[sacha35]

A Single 500w heater 40mmx10mm, in a solid block of copper 70mmx70mmx15mm, the heater has been place 1.5mm from the top of the copper so that most of the heat transfer will be at the very top and not the rest of the copper.

will be tseting very soon on a 15cc S/S so will let you no how it gets on.

 

[OV3RCLOCK3R]

Wow! Thats some impressive work there, could be very useful if doing reviews on heatsinks/waterblocks or even phase/extreme cooling

 

[sacha35]

Ok guys a bit of an update with the load tester, the first attempt worked well but did fluctuate between 5w-10-watts so was not that accurate for the purpose in which it is being used so I went back to the drawing board to see how I could improve things a bit and have not made this second tester which works very well and is within range of 1-2 watts accrete, I have also added the enclosed a multi function meter that shows how many watts I want to be using, as this is much easier than having my Fluke connected to the unit.

Hear is some pics of the finnal build.

 

[bazx]

would this work for testing ln2 pots

i have 3x of diff constuction that need to be compared

 

[sacha35]

would this work for testing ln2 pots

i have 3x of diff constuction that need to be compared

It would work with LN2, but the insulation would need to be beefed up a lot to withstand the extreme temps, but could be done.

 

[Master_G]

Getting better all the time, nice work.

G

 

[nick25]

Fantastic work sacha.