If you want to test your water for usability prior to making colloidal silver, this is the unit for you. It will read microsiemens (uS/cm) which is a measure of conductivity. If your water measures less than 2 uS it is acceptable for CS production. As an additional benefit, this instrument can closely relate the reading to parts per million (PPM) of ionic/colloidal silver after you have produced it. If the water was pure to start with, this meter will read colloidal silver directly in ppm by applying a correction factor. We have tested our colloidal silver for ppm using the atomic absorption method and this meter reads those samples within a close percent of the laboratory results. * Rugged, Floating Waterproof Casing * Dual Level Display * Replaceable Graphite Electrode The original DiST® (Dissolved Solids Tester) was first introduced in 1986 by HANNA instruments®. Since then, the measurement of Conductivity and Total Dissolved Solids has never been easier. The DiST®s ease-of-use, in combination with its affordability, made it the standard in EC and TDS measurement. HANNA instruments® continues the tradition of innovation with the DiST®5. We at HANNA instruments® have always valued the comments and suggestions coming from our customers. For this series, we have included all the features you have asked for and more! The DiST®5 includes features such as a replaceable graphite electrode, adjustable TDS ratio, temperature in °C or °F, automatic temperature compensation with adjustable ß, battery level indicator, stability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC/TDS/Temperature measurement! HI 98311 (DiST®5) is supplied complete with protective cap, batteries, probe removal tool and instructions. Range: 0 to 3999 µS/cm EC, 0 to 2000 ppm TDS, 0.0 to 60.0 °C or 32.0 to 140.0 °F Resolution: 1 µS/cm EC, 1 ppm TDS, 0.1 °C or 0.1 °F Accuracy (@20°C/68°F): ±2% Full Scale EC & TDS, ±0.5 °C or ±1 °F Typical EMC Deviation: ±2% Full Scale EC & TDS, ±1 °C or ±2 °F Calibration: Automatic 1 point at 1413 µS/cm Conversion Factor: Adjustable from 0.45 to 1.00 Temp. Compensation: BETA (ß) = adjustable from 0.0 to 2.4 per °C in increments of 0.1 Environment: 0 to 50°C (32 to 122°F); R.H. 100% Battery Type/Life: 4 x 1.5V / 100 hours Dimensions: 163 x 40 x 26 mm (6.4 x 1.6 x 1.0") Weight: 85 g (3 oz.) If you want to test your water for usability prior to making colloidal silver, this is the unit for you. It will read microsiemens (uS/cm) which is a measure of conductivity. If your water measures less than 2 uS it is acceptable for CS production. As an additional benefit, this instrument can closely relate the reading to parts per million (PPM) of ionic/colloidal silver after you have produced it. If the water was pure to start with, this meter will read colloidal silver directly in ppm by applying a correction factor. We have tested our colloidal silver for ppm using the atomic absorption method and this meter reads those samples within a close percent of the laboratory results. We supply instructions with the proper correction factor so you will be able to easily calculate your PPM (parts per million) of colloidal silver. This instrument is very simple to use. It is manufactured by Hanna Instruments, a leader in electronic measurement equipment. Just insert it into your distilled water and it will read directly in uS (micro siemens)or TDS (total dissolved solids). When testing colloidal silver water the reading is is PPM. The PWT (Pure Water Tester) comes with batteries which will provide approximately 150 hours of continuous use. We also have standard calibration solutions so you can make sure your meter is always reading correctly. We STRONGLY recommend you purchase calibrating solution because the instrument does require recalibration when first used and from time to time. |