How to use a COM-100 TDS Meter?

[joseaf]

I purchased a COM-100 meter that has 3 measuring function, KCI, 442 and NaCl. Which of these function do I use with ppm?

 

[HippyInEngland]

Your instructions are here ...

hXXp://lib.store.yahoo.net/lib/ircstore/COM-100.pdf

Change the XX to TT

You will need Adobe Reader because it is a PDF file.

If you do not have Adobe Reader, the download is below.

hXXp://www.adobe.com/products/acrobat/readstep2.html

XX to TT again

 

[ShecallshimThor]

have bought a milwuakee cd 600
thought it was just a ppm pen but now i think it a dual with ph as well
so now i have no idea how to work or read it can anyone help me please

 

[joseaf]

I have the instruction for the meter. I confusion is which setting to use: KCI, 442 or NaCl?