MEASURING WATER CONDUCTIVITY
- Price includes calibration $350 US
Water Test provides quick and reliable measurement of the four most important variables in water analysis, that is, pH, ORP (Oxidation-Reduction Potential), conductivity (0 to 1999 uS), and temperature. The lightweight and compact package makes it perfect for use in the plant as well as the field. It will allow monitoring of ideal electrical conductivity (1000 microSiemens) necessary for proper functioning of water ionizers which charge the water with copper and silver atoms from electrodes.
Water Test is engineered with such simplicity that even non-technical personnel can use it. Fill the base of Water Test with the sample to be measured, press "RANGE" to select the mode and then simply read your measurement.
Superior in design and construction, the Water Test is made of rugged material which provides excellent protection from the typical conditions of the field and plant. When Hanna engineered the Water Test, they made it simple to use for even non-technical personnel. After the pH and conductivity calibration has been performed, measurements are simple. Fill the base of the Water Test unit with the sample to be measured. Turn the unit on and switch it to the desired range. Then simply read your measurement.
The rugged construction and simple operation make Water Test perfect for use in the fields of water treatment analysis, waste water tests, ecological studies, aquaculture and hydroponic applications.
- 4 instruments in 1
- Long battery life making the unit excellent for field operations
- Excellent accuracy across all ranges
- Lightweight and highly portable
- Obtain consistent accuracy through 3 calibration trimmers
- Easy to operate and maintain
- is an ideal instrument for water testing in lakes and rivers as well as swimming pools, aquariums and plating baths.
- ability to test 4 different environmental parameters using just one simple meter.
The design of the Water-Test meter is such that it can be lowered into the water to be tested in order to fill the Black sample chamber at the bottom of the unit. It can then be removed from the water and stood in a position to allow for ease of reading of the various parameters
Using a simple range select rubber button on the front of the meter allows the operator to choose whether to read conductivity, pH, ORP (also known as Redox) or temperature.
All the sensors are located in the Black sampling chamber at the base of the unit, where they are protected from accidental damage.
For Colloidal Nanocrystalline Waters use the PWT meter which is more sensitive for low levels of ppm.
We have searched carefully and recommend the pocket size Pure Water Tester (PWT) which measures low levels down to 0.1 microSiemens (uS) of conductivity with 0.1 microSiemens resolution and full scale up to 99.9 microSiemens. We recommend that you do not buy the wider range, less sensitive meters going up to 1000 microSiemens or a TDS (Total Dissolved Solid) meter (calibrated for Sodium Chloride).
This very useful conductivity meter can be ordered from us.
Price of pocket water tester: $160 US.
We can supply calibration solution of conductivity 84 uS to check any conductivity meter for accuracy.
Some of our samples of 38 microSiemens measured to be 24 ppm of Silver, which is a ratio of 38/24 = 1.58 or 24/38 = 0.63 = approximately 2/3 of the conductivity reading. Other samples of 26.7 uS was equivalent to 14.5 ppm = ratio of 0.54, while other experts have found ratio of 1.2 which may mean that their CS had large uncharged particles of silver contributing to the ppm measurement.
TDS meters are calibrated for Sodium Chloride salt
0.1 microSiemens corresponds to 0.04 ppm (parts per million) of Sodium Chloride salt.
1 microSiemens corresponds to 0.4 ppm of Sodium Chloride salt.
10 microSiemens corresponds to 4.3 ppm of Sodium Chloride salt.
99.9 microSiemens corresponds to 48 ppm of Sodium Chloride salt.
Conductivity is the reciprocal of resistance. 1 microSiemens of conductivity corresponds to an electrical resistance of 1 megohm, 100 microSiemens of conductivity corresponds to an electrical resistance of 10,000 (10K) ohms,
Understanding
mS, g/l, mg/l, ppm, ppt & converting from one to the other
Electrical conductivity is the ability of a solution to conduct an
electric current. It can be used as an index of the total solids (TDS) in
a water sample.
The unit of measure commonly used in Siemens per centimeter (S/cm). The conductivity of water is usually expressed as microSiemens/cm (µS/cm) which is 10-6 S/CM. The relation between conductivity and dissolved solids is approximately:
2 µS/cm = 1 ppm (which is the same as 1 mg/l)
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The conductivity of water from various sources is
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Some common conductivity conversion factors are
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Be aware that the above figures are for Sodium Chloride salt and do not correspond accurately to colloidal parts per million. This is because colloidal waters have positive as well as negative nanometre particles and ions, exerting complex double-layer, Zeta potential and quantum effects.
The only accurate method to measure colloidal waters is to do what we had to do and send a sample to a lab such as Natural Immunogenics at http://www.natural-immunogenics.com/lab_analytical.php in Florida. They will do the following:
Ag -- Silver or Gold Concentration Analyses
The results of silver concentration analysis (in parts per million) and other pertinent observations will be returned with a Certificate of Analysis. Minimum 1 oz samples must be submitted, appropriately coded with your identification marks. Turn-around time is generally 5 business days from receipt. Price per Sample -- $35.00 each
Particle Characterization Analyses
Observations are returned with a Certificate of Analysis and includes two b/w micrograph photos at 100,000x (unless otherwise specified). This analysis is designed specifically for imaging & sizing Silver particles. Samples of a 10 ml minimum appropriately coded with your identification markings required. Work is performed on a Phillips EM400T Transmission Electron Microscope (up to 480,000x magnification, resolution to 2.5 Angstroms). Turn-around time is 7 business days from receipt. Price per Sample -- $75.00 each
Comparative Bacteriology Analyses
Samples are evaluated against various ‘standards’ for comparative bactericidal efficiency. Results are returned in a paper describing the methodology employed and images stripped from the culture plates. Turn-around time is generally 7 business days from receipt. For an example of such a paper click here. Note: it is necessary to do a concentration analysis in order to establish basic parameters (see above) as the data is critical for accuracy in such evaluations. Price per sample -- $85.00 each
Telephone numbers: 1-888-328-8840 (toll Free -
from the US & Canda only)
+1-954-979-0885 (International Calling)
or Write: Natural-Immunogenics Corp.
3265 W. McNab Rd.
Pompano Beach, FL 33069
Attn: Sales or Customer Service
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Get accurate readings for DC voltage, DC current, AC voltage, resistance, transistor test, diode test, and continuity response. Features easy-to-read 3-1/2 digit LCD readout, positive set selector switch, and 32" leads. Low battery indication.Fuse and diode protected circuit.
- DC-A: 0-200µA-2000µA-20mA-200mA
- Resistance: 0-200-2000-20K-200K-2000K ohm
- DC-V: 0-200mV-2000mV-20V-200V-1000V
- AC-V: 0-200-750V
Price: $30 US
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Disclaimer: The information conveyed here is based on records and research for your information which is for horticultural, educational, sacramental and research purposes only. No statement should be taken as medical advice. It is not claimed or implied here that Mono-atomic SILVER-MAX or Colloidal mineral waters will cure any disease. Contact: Biophysica Inc., Toronto, Ont, Canada Phone: (905) 827-9448 (10am to 10pm EST) This page last updated on August 15, 2006 |