That's strange because once I get mine reading 6 or 7 and keep running after that it starts going grey. I bought a new ppm pen that does single digits until it goes over 1000ppm and diluted 1000ppm calibration fluid to 20ppm and use that to calibrate the pen for better accuracy when testin sub 20ppm sol'ns.
PPM pens do not accurately read CS ppm.
Alfred Searle used a Tyndall meter to measure how many particles of silver were present in a solution. It is a device that uses light to test for hue and reflection, which are used to determine the particle count and their size. These devices use light wavelengths as the means of measurement. Most modern sellers of silver products instead purchase an electronic device that measures the conductivity of the finished product. The conductivity of different solutions will always vary greatly, so these meters cannot possibly do what they are advertised to do. For example, if salt were added to the water, then it would have a different effect on the conductivity than if copper were added, because of their differing electrical properties. Yet the sellers of these meters claim that they are able to get accurate results measuring particle counts regardless of a solution's ingredients. If salt or another electrolyte exists in the water, the conductivity of the water will increase dramatically, even whilst the number of particles will stay roughly the same. Particle size and the temperature of the solution also effect the conductivity, which the meter has no way of determining. Even a gust of wind will give a different reading, due to the electrostatic effect upon the surface of the solution. In the case of colloidal metals, electrically gauging the concentration is even more futile than it is for other types of solutions, because the metallic liquid is an electrolytic capacitor with a constantly changing capacitance. Electricity cannot be used to measure the amount of metal in a solution when the surface area of the metal cannot be verified, and when the capacitance of the solution is ever-changing. It is like trying to get a consistent light measurement from a fireworks display. The capacitive solution itself will produce its own tiny currents, and it will block currents from the meter, which makes electronic testing an exercise in absurdity. The only way to accurately measure concentration in a fluid with metallic colloids is by using light. Thus, the parts per million rating given by most colloidal and ionic silver sellers is meaningless. Since colloidal silver changes the color of the water, clear colloidal solutions are frequently just expensive water, regardless of any measurement that sellers purportedly get. In the case of ionic silvers, it is impossible to measure the particle count, since the particles are too small to reflect light.
TDS Meter, the
de facto manufacturer of the new testing equipment, even acknowledges the uselessness of its own meters on its website, in an amusing attempt at damage control:
The expensive methods of testing colloidal solutions that are utilized by modern laboratories are likewise grossly flawed. Flame atomic absorption spectroscopy is one of the leading laboratory methods for analyzing colloidal solutions. It uses extreme temperatures to destroy a colloidal solution, and then observers rate the colors of the flames, in an attempt to visually gauge the metal concentration. Fire is impossible to control with the precision that is needed for a valid analysis; and of course, the test results are in the eyes of the beholder. These machines cost about $50,000 (U.S.), so it is unlikely that anyone outside of the chemical industry actually owns one. There are similar devices which utilize a beam of light that is projected through the flames during the analysis. These devices have the same inaccuracy issues, and they are even more expensive.
This is a comprehensive guide about medicinal colloidal silver and how to safely create it or purchase it.
healthwyze.org
