LK204-25PC gpo problems :(

Stig · Post by **Stig** » Wed Oct 09, 2002 1:00 pm

Tested with a Fluke 189 set to Fast Min/Max and it measured 4.9A peak! But the strange thing was that the CC stayed on. I used some longer leads to be able to measure this and also without the meter, the CC stayed on. Took off the extra leads and the CC just flashed again. If I put the longer lead back in, the CC stayed on. Maybe I just have to use the longer leads too....?

Stig

nikko · Post by **nikko** » Wed Oct 09, 2002 1:08 pm

Weird thing

Post by **linear** » Wed Oct 09, 2002 1:19 pm

maybe your leads are bad.

Stig · Post by **Stig** » Wed Oct 09, 2002 2:57 pm

Don't think so since I use the normal ones all the time. I just extend them with another set of leads plugged into the connector on the first set of leads.

Maybe it's just the small resistance extra in the second set of leads that does it..?

Stig

nikko · Post by **nikko** » Wed Oct 09, 2002 3:09 pm

stig, if you decide to throw the disp away, sent it to me

Stig · Post by **Stig** » Wed Oct 09, 2002 4:11 pm

Right...

Post by **Henry** » Wed Oct 09, 2002 10:28 pm

at 4.9 amps, I would have figured the GPO would blow up!?! hmmm...

where did you get these CCs? link? I'll pick up a couple in the next few days and try it here...

Stig · Post by **Stig** » Thu Oct 10, 2002 2:31 am

I think the reason the GPO didn't blow up is because it lasted very short. I had to put it to Fast Min/Max to catch it, otherwise it would only show about 0.22A. Min/Max needs a pulse of 50ms or longer to catch it, while Fast Min/Max can catch it down to 250uS. I was planning to check the duration of the pulse, but I have only an analog scope and it can't do oneshot triggers.

I got it from www.microplex.no, but their website is only in norwegian. If you send them an email (support@microplex.no), they can probably tell you who manufactured them. It's a red 30cm CC from their new supplier. Looks like it came from www.bitsmodding.com by looking at the box.

Stig

nikko · Post by **nikko** » Thu Oct 10, 2002 4:03 am

do you have any pic of the lcd setup ???