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Offlinerubber
organic lover
Registered: 11/21/04
Posts: 69
Loc: Tokyo, Japan
Last seen: 11 years, 8 months
How to use my pH tester???
    #3602143 - 01/09/05 05:58 AM (11 years, 10 months ago)

Hi all, i just recently borrowed an electronic pH tester from my lab. Its a waterproof one that seems really simple. Still i hav no idea how to work it. Do any of you guys have one that is similar to mine??

It has three buttons; ON/OFF, CAL, HOLD CON.

Any clue at all?


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OfflineJJdubble
Brown and new intown!

Registered: 12/14/04
Posts: 204
Last seen: 11 years, 9 months
Re: How to use my pH tester??? [Re: rubber]
    #3602193 - 01/09/05 06:35 AM (11 years, 10 months ago)

well....u need to get calibrating liquid...or if u don;t have that...than use distilled water
than calibrate it to 7.
then use it by mixing whatever ur tryin to test..with distilled water.


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OfflineFlashman
Sir

Registered: 01/05/05
Posts: 38
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Re: How to use my pH tester??? [Re: JJdubble]
    #3602201 - 01/09/05 06:44 AM (11 years, 10 months ago)

I use these at work. Almost all digital PH meters I've used MUST NOT BE CALLIBRATED WITH DISTILED WATER!

Use a PH buffer soloution.

Try looking for the make and model on the manufacturers website for instructions.


--------------------
Woof Woof


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OfflineJJdubble
Brown and new intown!

Registered: 12/14/04
Posts: 204
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Re: How to use my pH tester??? [Re: Flashman]
    #3602208 - 01/09/05 06:48 AM (11 years, 10 months ago)

ya...ur not supposed to use water cause it fucks it up if u do it alot...and buffer solution is also storage solution...but if it belongs to a lab...where he is only gonna use it once
than go ahead and use water unless u can swipe some solution...good luck...peace!


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Offlinerubber
organic lover
Registered: 11/21/04
Posts: 69
Loc: Tokyo, Japan
Last seen: 11 years, 8 months
Re: How to use my pH tester??? [Re: JJdubble]
    #3602319 - 01/09/05 07:46 AM (11 years, 10 months ago)

okay so i'll try to find buffer solution, if not, settle for distilled water.
hmmm would be really helpful if you guys give me step by step instructions on calibrating and using the meter, cos i totally have no idea how it works =\


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Offlinekiss
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Registered: 12/14/04
Posts: 486
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Re: How to use my pH tester??? [Re: rubber]
    #3602449 - 01/09/05 09:30 AM (11 years, 10 months ago)

Most of these will use a buffer solution of ph 7. However their are others that will require the use of ph 4, and sometimes both ph 7, and 4. This way the pen has a much more accurate reading.
Find out (if possible) which solution(s) to use. In most cases if it's that type that looks kinda like a big fat pen, then the PH solution of 7 is all thats needed. Much more common.
Once you have the solution, fill a shot glass, or just use the cap that covers the end of the pen and fill that with the buffer solution. Place the end of the pen in there (submerge) for afew second to a min., turn on and press the calibration button. Most pens will start to flash a reading across the readout display (pay no attention to this). After a good 30 sec. to a min. has gone by press the hold con. button (again there could be a slight diffrence from pen to pen). Now your pen has been calibrated. Do this about 1 a week. TIP: When storing the pen keep the solution (buffer solution) inside the cap. The ends of these instruments are not ment to be dry. Also keep an eye out for any error messages that could come up, like low batt.
Good Luck


--------------------
see dick drink
see dick drive
see dick die
don't be a dick!


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Offlinerubber
organic lover
Registered: 11/21/04
Posts: 69
Loc: Tokyo, Japan
Last seen: 11 years, 8 months
Re: How to use my pH tester??? [Re: kiss]
    #3607307 - 01/10/05 12:06 PM (11 years, 10 months ago)

thanks that was really helpful =)

anyway yes its the type that looks like a big fat pen. any idea where to get the buffer?
and oh my lab didnt store the pens in buffer solution lol...


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Amazon Shop for: pH Test Strips

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