Products > Test Equipment

Protek - Their production line is just too fast

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mikeselectricstuff:
Is this a new Necroposting record ?

mairo:
My Protek 506 (my first DMM, apat from the $5 that I got at uni) also has this issue. It has not been exposed to any excessive light/heat and I also think is something to do with the chemistry b/w the rober cover and the DMM plastic.

helius:
My Protek 506 (also my first DMM) was bought used without a boot, and is unaffected by this problem (although the cover of the RS232 port was lost long ago). It still works OK but needs to be calibrated.

thm_w:

--- Quote from: helius on March 17, 2018, 10:05:54 pm ---My Protek 506 (also my first DMM) was bought used without a boot, and is unaffected by this problem (although the cover of the RS232 port was lost long ago). It still works OK but needs to be calibrated.

--- End quote ---

If you have a good reference you can cal it yourself:
- Take off back cover
- Switch cal switch in top right to ON position
- Power on meter (to volts)
- Apply the required voltage/current if you have it and press "OK"
- If you don't have it press right arrow to skip that step

If it asks for A or mA of course you have to switch to the correct range. I couldn't find a way to go back, only forward.

picrthis:
I know this this thread is old, but does anybody have the original disk with the software & drivers on it they could zip-up and send me?
Please :)

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