robert.we...@ny.ubs.com wrote: > > I called Hanna Instruments and spoke to their chemist to find out exactly > what the TDS-1 does and how it does it. > > Their chemist said the TDS-1 actually measures conductivity between the two > probes and uses this to estimateTotal Disolved Solids.
snip > > The TDS-1 puts out 6 volts from one probe and measures how much current > reaches the other probe. > snip > > Bob Wells Hi Bob and list, Would like the name of the *chemist* you spoke to. I will immediately call Hanna Inst. and inform them of the garbage this person is putting out. TDS-1 doesn`t apply any voltage to its pins. It measures the current caused by the electric charge of ions in the water. A lot of you have multimeters, so use them. Try to measure the voltage on the pins. You don`t have to take my word for it ,look for yourself. Bless you all Bob Lee -- oozing on the muggy shore of the gulf coast l...@fbtc.net -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the subject: line. To post, address your message to: silver-list@eskimo.com List maintainer: Mike Devour <mdev...@id.net>