Repairing the Haefely Trench PESD-1600 ESD Tester, plus some testing and discussion of the IEC 61000-4-2 standard.
00:00 - Repair of the Haefely Trench PESD-1600 tester
01:40 - Special snowflake rotary encoder test
03:15 - Laugh at Dave as he solders before looking
05:06 - Nothing worse than a floppy pin
07:09 - Soldering the switches
11:01 - The reassembly nighmare
18:52 - Does it work?
19:53 - Battery pack replacement
22:27 - ESD Testing that's good enough for Australia
Would it be possible to measure the output without the expensive target? Like with only a dmm or maybe even a scope or spectrum analyzer with proper protection?
Would it be possible to measure the output without the expensive target? Like with only a dmm or maybe even a scope or spectrum analyzer with proper protection?
Sure, make a 2 ohm load with as much bandwidth and linearilty as possible. Not hard to do, but full charactertisation would be the hard part.
And of course you need a very high bandwidth scope and associated attenuators and cabling.
I might take a crack at it...
If you are building something for testing, the ground plane in esd setup has to be connected via a 1Mohm (2x470k) resistor back to the esd gun
If you are building something for testing, the ground plane in esd setup has to be connected via a 1Mohm (2x470k) resistor back to the esd gun
It's the horizontal ground plate that need to be connected via 1M to the floor ground plate. Same for the vertical ground plate.