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NFC: Dontcha love garage sales!
I scored some "pocket protector style" pH and Conductivity testers at a
garage sale today (no instructions) and I was wondering if any of you have
experience with these things. Any help would be appreciated.
Ph tester:
Red case w/ removable black cap to protect the sensor pen clip and LED
readout. On the front it says "Cole Parmer Chicago, IL 60648 Model
5941-00". When I remove the cap I can see a glass bulb on one side and a
white peg or nub of plastic on the other. This peg is encrusted with a
white precipitate.
Do I soak this in distilled water or ? to remove the white crustiness? Will
it need to be recalibrated? (how?)
Conductivity tester:
Blue case w/ removable black cap pen clip and LED readout. On the front it
says "3",and "Omega", On the back it says Range 10/ 1990 uS. When I remove
the cap there is a two pronged plastic probe on a metal base on one side,
and a round metal disc on the other.
Can anyone help me?
thanks,
Brian