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TDS Meter by Hanna Instruments
By Ken Adachi
October 27, 2000
TDS stands for Total Dissolved Solids. This meter is often used by the
water industry to measure the level of minerals in water, however it gives
a relatively accurate reading of colloidal silver ppm. The only
way to obtain a true parts per million (ppm) measurement of a collodial
silver sample is to send it out to a lab equipped to analyse the CS. That
can be time consuming and very expensive. Most producers of CS are now
rating their ppm with a TDS meter and adding the nomenclature "TDS" after
the ppm number. For example, 10 ppm TDS, means 10 ppm as measured with
a TDS meter. For our purposes, it's more than accurate enough. It
takes all the guess work out of trying to figure how concentrated your
CS solution is. This meter works equally well measuring standard DC CS
or the high voltage AC CS such as Merlin's Super Silver mentioned above.
These model TDS 1 meters with automatic temperature compensation are brand
new and top of the line from Hanna Instruments, one of best names in laboratory
measuring equipment. Specifications as follows:
0-999 ppm (mg/L)
Batteries: 4 x 1.4v alkaline (Life approx. 150
Dimensions: 150x30x24 mm (5.9x1.2x0.9")
Weight 85 g (3 ozs.)
Operating Environment: 0-50 degrees C/ 95 % RH
+/- 1% F.S
Compensatrion 0-50 degrees C (41-122
The meter comes with a sturdy, snap lid plastic case and jeweller's
screwdriver for re-calibration if desired. All units are factory calibrated
and include calibration test results. To test the unit, you can dip it
in distilled water up to the max level indicated on the side on the meter.
You should get a reading of zero. After measuring each CS solution sample,
you should rinse with distilled water in between and when finished. $70.
See Products page for ordering info.
All information posted on this web site is
the opinion of the author and is provided for educational purposes only.
It is not to be construed as medical advice. Only a licensed medical doctor
can legally offer medical advice in the United States. Consult the healer
of your choice for medical care and advice.