Products > Test Equipment
Keithley 2400 SourceMeter review and teardown
TiN:
You filthy man :) I was watching that one. Well, sorta. Hopefully it's just a broken FET. Full teardown is expected, counting on ya ;)
plesa:
I cannot resist to buy it for parts and try repair it. Faulty 2600 series is still too expensive and 2400 is fanless, which is big advantage.
It must be some kind of addiction:)
TiN:
Well you can break yours working ones and then u will have parts :D
Careful with 2410, it have 1.2kV on top end rails.
plesa:
Because you know how you damaged it it is less fun:) With buying meter with unknown state it is more troubleshooting from scratch. Thats more fun I suppose.
Yep, I will use the experience from K6517A repair. I expect they are using same Sanyo 2SK1412 transistors and one or more will be dead and this will also damage components close to them.
BTW another K6517A electrometer is waiting for repair, but It is more challenging, it did not fall down from rack like first one ( broken VFD), but it has blown input stage by overvoltage spike.
There is input protection (few series resistors and LS313 ( dual NPN ) and input stage is made by LMC6001. I found one faulty 2N3904 transistor but nothing else yet.
HighVoltage:
Hello TiN,
I have the 2420-C 3A version of this SourceMeter
Will your calibration script maybe work on this one as well?
Really nice work you do.
Thanks.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version