post your load testers!

[godmod]

Mine - unique ?
I think nothing more simple than mine loadtesters ;-) .

260W dummy made of 3x 50W resistors - I know they're overloaded much but they work without problems with sub-zero temperatures . 230V powered . Alu plate 10 mm thick

225W dummy made of 4x 50W resistors .230V powered . Alu plate 10 mm thick . That box is "cut-off" which should turn off dummy when I forget to switch it off after test and dummy is going to be very hot - it should turn off 230V when alu plate reach 70*C, unlucily it turn if off also when alu is very cold - I mean test on -100C evap cascade, it turns off power too . When I test SS with around -50C it's OK, safety cut-off can be turned ON, it not cut in such sub-zero temps . That's why I make ON/OFF switch on that safety device.

Hello Peter, how much Ohms does each Resistor have and did you wire them in series or in parallel?

[kayl]

The photos are great but - I'm not sure i understood this Load !
Can someone Post an Electrical wiring Scheme so i will understand better
How eXACKLY Did you Connected these ressistors to a 230V ???

I want to use this to Measure my Single Stage Power .

in series between active and neutral, ground the load test as well with the earth wire.

[piotres]

Hello Peter, how much Ohms does each Resistor have and did you wire them in series or in parallel?

In series, but I don't remeber resistance .

[killermiller]

Here is mine. I bought the block and heater cartridges from DetroitAC. The block is 1.5x1.5x.75 inches. There are 2 3/8 150w heater cartridges. I have a variac to control the voltage applied.

[Marvin]

My initial pics.
2 HC 75w at 220v
variac 2kva
need to find a copper bar....

[Marvin]

sorry revival this post but just finished mine :

[EvoCarlos]

heres mine
one 300w heater cart with 400w dimmer
oh and armaflex and heat loader = bad! fiberglass ftw





in use

[teyber]

nice guys!

Ill repost mine soon, i remade mine so ill post up some pics

[sjg0]

Hey that looks pretty sweet Carlos. Where did you get that fiberglass and how do you have it wrapped together (like glue, staples, rubberbands, etc)

lol Teyber are you communist now?

[EvoCarlos]

Hey that looks pretty sweet Carlos. Where did you get that fiberglass and how do you have it wrapped together (like glue, staples, rubberbands, etc)

lol Teyber are you communist now?

hey the fiber glass came from work lucklly they make log burners and theres lost of f/g in the door seal and boiler part so was easy to come by
and its all held together with wynn's industrial strenth super glue

[DetroitAC]

My load tester uses two 150W cartidge heaters in a copper block, bores cut with a boring head on the mill so they are nice and tight clearance.

I milled the die shape of an Intel quad into the top of the block. For a while I was using TIM between the simulated dies and the top an Athlon proc. Then I switched to a LGA775 processor lid and soldered it to the dies with a very thin layer of solder. It's hard to see but there is an air gap around the perimeter of the IHS and only the dies make contact with the IHS.

Stancor thermal switch mounted to back of the block. It saved my load tester from a meltdown about two weeks after I installed it

CNC'd Delrin flange with a stepped square cutout for the copper block to sit in. When I want a very accurate test I just wrap the whole thing in Armaflex.

[EvoCarlos]

My load tester uses two 150W cartidge heaters in a copper block, bores cut with a boring head on the mill so they are nice and tight clearance.

I milled the die shape of an Intel quad into the top of the block. For a while I was using TIM between the simulated dies and the top an Athlon proc. Then I switched to a LGA775 processor lid and soldered it to the dies with a very thin layer of solder. It's hard to see but there is an air gap around the perimeter of the IHS and only the dies make contact with the IHS.

Stancor thermal switch mounted to back of the block. It saved my load tester from a meltdown about two weeks after I installed it

CNC'd Delrin flange with a stepped square cutout for the copper block to sit in. When I want a very accurate test I just wrap the whole thing in Armaflex.

reed said it was good DetroitAC but its very very impressive to see it

[piotres]

DetroitAC- very IMPRESSIVE . You have Your own machine park with all CNC millers I guess?

[teyber]

DetroitAC- very IMPRESSIVE . You have Your own machine park with all CNC millers I guess?

hes got an cnc converted rf 45 if i remember

[Duzter]

What thermal switch are you using DetroitAC?

[DetroitAC]

This one --> Stancor

@Piotres, Yes I have A large conversion bed mill and a small mill with a high speed spindle. Most of the work was on the bed mill, but the die sim machining was done on the small one.

[sdumper]

My load tester uses two 150W cartidge heaters in a copper block, bores cut with a boring head on the mill so they are nice and tight clearance.

I milled the die shape of an Intel quad into the top of the block. For a while I was using TIM between the simulated dies and the top an Athlon proc. Then I switched to a LGA775 processor lid and soldered it to the dies with a very thin layer of solder. It's hard to see but there is an air gap around the perimeter of the IHS and only the dies make contact with the IHS.

Stancor thermal switch mounted to back of the block. It saved my load tester from a meltdown about two weeks after I installed it

CNC'd Delrin flange with a stepped square cutout for the copper block to sit in. When I want a very accurate test I just wrap the whole thing in Armaflex.

DetroitAC do you recall the make and model of those 150 watt cartridges?

[Jack]

DetroitAC do you recall the make and model of those 150 watt cartridges?

They look like the ones from McMaster:

http://www.mcmaster.com/#cartridge-heaters

[sdumper]

Thanks Jack.

I need a replacement and didnt want to get the wrong size...but I heard someone say once that's what a tape measure is for

[gosmeyer]

http://www.tempco.com/Cartridge_Heaters/HD_Main.htm

Find what you want by dia.

[gosmeyer]

This one works pretty good-voltage, current, block temp and evap temp

[lior307]

Great Pics !!!

I also would like to build a Load Tester of 300W But ,

1. Where can i find Copper Plate and Two Heaters of 150W - For 230V
(Two 150W = 300W) also what Size should i ask for heaters ?

I need Stores that can ship to Europe .

[sdumper]

This one works pretty good-voltage, current, block temp and evap temp

That is absolutely amazing!!!!!

[DXB750]

Great Pics !!!

I also would like to build a Load Tester of 300W But ,

1. Where can i find Copper Plate and Two Heaters of 150W - For 230V
(Two 150W = 300W) also what Size should i ask for heaters ?

I need Stores that can ship to Europe .

For the copper plate you can buy from one of the members of the Forum or from the local market have.

HEATER CARTRIDGE @ 6.5X50MM, 160W X 2

http://uk.farnell.com/redring/120006...60w/dp/8244456

OR

6.5X40MM, 100W X 3

http://uk.farnell.com/jsp/search/pro...sp?SKU=8244430

Also you will need to thermal switch :

http://uk.farnell.com/jsp/search/pro...jsp?SKU=491524

OR

http://uk.farnell.com/jsp/search/pro...jsp?SKU=732606


Good luck,

[Dualist]

Great Pics !!!

I also would like to build a Load Tester of 300W But ,

1. Where can i find Copper Plate and Two Heaters of 150W - For 230V
(Two 150W = 300W) also what Size should i ask for heaters ?

I need Stores that can ship to Europe .

Copper...
http://www.regis.demon.co.uk/mallard/catalogue.pdf

Heaters 300watt 230v...
http://uk.rs-online.com/web/search/s...duct&R=3761887

Hope that helps mate