Week of broken instruments
robert, Mon Jun 26 2006, 08:50PMSomehow last week there was the week of broken instruments.
A cheap DMM blew up for whatever reason.
Now the major bad thing:
My best scope lost horizontal deflection for the text display.
Thats rather bad esp. on this one since it doesnt even have marked buttons but rather a central encoder knob and lots of illuminated sensor buttons.Nice as long as it works.
The pic shows whats left of the option menu.
As i found out its incredibly hard to find a service manual (troubleshooting without one is hopeless on this instrument).
Ans also, my nice keithley 173A DMM blew, again i dont know why but could have been overvoltage.
Re: Week of broken instruments
Carbon_Rod, Mon Jun 26 2006, 10:07PM
Unsupervised curious folk using ones equipment is common for some people. Time to put a lock on the shop.
Lightning striking a power line can travel for several km too. Were they all on when it happened?
Cheers,
Carbon_Rod, Mon Jun 26 2006, 10:07PM
Unsupervised curious folk using ones equipment is common for some people. Time to put a lock on the shop.
Lightning striking a power line can travel for several km too. Were they all on when it happened?
Cheers,
Re: Week of broken instruments
robert, Tue Jun 27 2006, 06:20PM
The DMM could have been damaged by this since i had it plugged in for a whole night (had left the instrument breaker on because i had used a PSU for charging a battery which took a long time) but the scope was not on (unplugged) during any critical time.Actually it worked when i powered it up on that day, after a short time there was a click-like noise and then deflection was lost.
I dont think anyone else messed with my lab, since the main power supply is switched by a keyswitch, and without power its really dark there.Could be but that would have been limited to mechanical damage.Again, unlikely since i had a freshly-unpacked box of really expensive parts and they still were there.Anyone with wnough clue to mess with my instruments would have taken something.
robert, Tue Jun 27 2006, 06:20PM
The DMM could have been damaged by this since i had it plugged in for a whole night (had left the instrument breaker on because i had used a PSU for charging a battery which took a long time) but the scope was not on (unplugged) during any critical time.Actually it worked when i powered it up on that day, after a short time there was a click-like noise and then deflection was lost.
I dont think anyone else messed with my lab, since the main power supply is switched by a keyswitch, and without power its really dark there.Could be but that would have been limited to mechanical damage.Again, unlikely since i had a freshly-unpacked box of really expensive parts and they still were there.Anyone with wnough clue to mess with my instruments would have taken something.
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