TDS (Total Dissolved Solids) and TDS Meters – MyronLMeters.com

Posted by 4 Oct, 2012

TweetA TDS Meter indicates the Total Dissolved Solids (TDS) of a solution (the concentration of dissolved solids in it). Since dissolved ionized solids such as salts and minerals increase the conductivity of a solution, a TDS meter measures the conductivity of the solution and estimates the TDS from that. Dissolved organic solids such as sugar […]

A TDS Meter indicates the Total Dissolved Solids (TDS) of a solution (the concentration of dissolved solids in it). Since dissolved ionized solids such as salts and minerals increase the conductivity of a solution, a TDS meter measures the conductivity of the solution and estimates the TDS from that.
Dissolved organic solids such as sugar and colloids don’t affect the conductivity of a solution much so a TDS meter does not include them in its reading.

Units of TDS

A TDS meter usually displays TDS in parts per million (ppm). For example, a TDS reading of 1 ppm would indicate there is 1 milligram of dissolved solids in each kilogram of water.

Measurement

The two chief methods of measuring total dissolved solids are gravimetry and conductivity. Gravimetric methods are the most accurate and involve evaporating the liquid solvent and measuring the mass of residues left. This method is generally the best but time-consuming. If inorganic salts comprise the majority of TDS, gravimetric methods are recommended.

Electrical conductivity of water is directly related to the concentration of dissolved ionized solids in the water. Ions from the dissolved solids in water create the water’s ability to conduct an electrical current, which can be measured using a conventional conductivity meter or TDS meter. When correlated with laboratory TDS measurements, conductivity provides an approximate value for the TDS concentration.

TDS

Total Dissolved Solids (TDS) is a measure of the combined content of all inorganic and organic substances contained in a liquid in: molecular, ionized or micro-granular (colloidal sol) suspended form. The operational definition is that the solids must be small enough to survive filtration through a two micrometer sieve. Total dissolved solids are normally discussed only for freshwater systems, as salinity comprises some of the ions constituting the definition of TDS. The principal application of TDS is in the study of water quality for streams, rivers and lakes, although TDS is not generally considered a primary pollutant (e.g. it is not deemed to be associated with health effects) it is used as an indication of aesthetic characteristics of drinking water and as an aggregate indicator of the presence of a broad array of chemical contaminants.
Primary sources for TDS in receiving waters are agricultural and residential runoff, leaching of soil contamination and point source water pollution discharge from industrial or sewage treatment plants. The most common chemical constituents are calcium, phosphates, nitrates, sodium, potassium and chloride, which are found in nutrient runoff, storm water runoff and runoff from snowy climates where road de-icing salts are applied. The chemicals may be cations, anions, molecules or agglomerations on the order of one thousand or fewer molecules, so long as a soluble micro-granule is formed. More exotic and harmful elements of TDS are pesticides arising from surface runoff. Certain naturally occurring total dissolved solids arise from the weathering and dissolution of rocks and soils. The United States has established a secondary water quality standard of 500 mg/l to provide for palatability of drinking water.

TDS Measurement Applications

High TDS levels indicate hard water, which can cause scale buildup in pipes, valves, and filters, reducing performance and adding to system maintenance costs. These effects can be seen in aquariums, spas, swimming pools, and reverse osmosis water treatment systems. Typically, in these applications, total dissolved solids are tested frequently, and filtration membranes are checked in order to prevent adverse effects.
In the case of hydroponics and aquaculture, TDS is often monitored in order to create a water quality environment favorable for organism productivity. For freshwater oysters, trouts, and other high value seafood, highest productivity and economic returns are achieved by mimicking the TDS and pH levels of each species’ native environment. For hydroponic uses, TDS is considered one of the best indices of nutrient availability for the aquatic plants being grown.

Because the threshold of acceptable aesthetic criteria for human drinking water is 500 mg/l, there is no general concern for odor, taste, and color at a level much lower than is required for harm. A number of studies have been conducted and indicate various species’ reactions range from intolerance to outright toxicity due to elevated TDS. The numerical results must be interpreted cautiously, as true toxicity outcomes will relate to specific chemical constituents. Nevertheless, some numerical information is a useful guide to the nature of risks in exposing aquatic organisms or terrestrial animals to high TDS levels. Most aquatic ecosystems involving mixed fish fauna can tolerate TDS levels of 1000 mg/l.

Applications
Boilers & cooling towers, Deionization, Reverse osmosis, Chemical concentrations, Printing fountain solutions, Swimming pools & spas, Water pollution control, Wastewater & more…
Myron L Meters Top-selling TDS Meters

Myron L Ultrapen PT1

Ultrapen PT1 Conductivity, TDS, Salinity pen

 

 

 

 

 

 

 

 

 

 

http://www.myronlmeters.com/Ultrapen-PT1-Multiparameter-Meter-p/dh-up-pt1.htm

ULTRAPEN PT1 Conductivity – TDS – Salinity Pen
Accuracy of +/-1% of READING (+/-.2% at Calibration Point)
Reliable Repeatable Results
Solution modes: KCl, NaCl and 442
Automatic Temperature Compensation
Autoranging
Durable, Fully Potted Circuitry
Waterproof

 

 

 

 

 

 

 

 

 

http://www.myronlmeters.com/Analog-Conductivity-Multirange-Meter-p/ah-ds-ep-10.htm

EP-10: 0-10, 100, 1000, 10,000 micromhos/microsiemens
Instant and accurate TDS tests
Electronic Internal Standard for easy field calibration
Fast Auto Temperature Compensation
Rugged design for years of trouble-free testing
Simple to use

Multi-Parameter: Conductivity, TDS, Resistivity, Temperature

 

 

 

 

 

 

 

 

 

 

http://www.myronlmeters.com/Ultrameter-II-4P-Multiparameter-Meter-p/dh-umii-4pii.htm

Multi-Parameter: Conductivity, TDS, Resistivity, Temperature
+/-1% Accuracy of Reading
Memory Storage: Save up to 100 samples w/ Date & Time stamp
Wireless Download Module Optional
Waterproof

 

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Categories : Product Updates, Science and Industry Updates

Conductivity and Conductivity Meters – MyronLMeters.com

Posted by 23 Sep, 2012

TweetThe conductivity (or specific conductance) of a solution is a measure of its ability to conduct electricity. The standard unit of conductivity is siemens per meter (S/m). Conductivity measurements are used routinely in many industrial and environmental applications as a fast, inexpensive and reliable way of measuring ionic content in a solution. For example, the […]

The conductivity (or specific conductance) of a solution is a measure of its ability to conduct electricity. The standard unit of conductivity is siemens per meter (S/m).

Conductivity measurements are used routinely in many industrial and environmental applications as a fast, inexpensive and reliable way of measuring ionic content in a solution. For example, the measurement of product conductivity is a typical way to monitor and continuously trend the performance of water purification systems.

In many cases, conductivity is linked directly to the total dissolved solids (TDS). High quality deionized water has a conductivity of about 5.5 μS/m, typical drinking water in the range of 5-50 mS/m, while sea water about 5 S/m (i.e., sea water’s conductivity is one million times higher than deionized water).

Conductivity is traditionally determined by measuring the AC resistance of the solution between two electrodes.

Resistivity of pure water (in MΩ-cm) as a function of temperature

The standard unit of conductivity is S/m and usually refers to 25 °C (standard temperature). Often encountered in industry is the traditional unit of μS/cm. 106 μS/cm = 103 mS/cm = 1 S/cm. The numbers in μS/cm are higher than those in μS/m by a factor of 100 (i.e., 1 μS/cm = 100 μS/m). Occasionally a unit of “EC” (electrical conductivity) is found on scales of instruments: 1 EC = 1 μS/cm. Sometimes encountered is a so-called mho (reciprocal of ohm): 1 mho/m = 1 S/m. Historically, mhos antedate Siemens by many decades; good vacuum-tube testers, for instance, gave transconductance readings in micromhos.

The commonly used standard cell has a width of 1 cm, and thus for very pure water in equilibrium with air would have a resistance of about 106 ohm, known as a megohm. Ultra-pure water could achieve 18 megohms or more. Thus in the past megohm-cm was used, sometimes abbreviated to “megohm”. Sometimes conductivity is given just in “microSiemens” (omitting the distance term in the unit). While this is an error, it’s usually assumed to be equal to the traditional μS/cm. The typical conversion of conductivity to the total dissolved solids is done assuming that the solid is sodium chloride: 1 μS/cm is then an equivalent of about 0.6 mg of NaCl per kg of water.

A conductivity meter and probe

The electrical conductivity of a solution is measured by determining the resistance of the solution between two flat or cylindrical electrodes separated by a fixed distance. An alternating voltage is used in order to avoid electrolysis. The resistance is measured by a conductivity meter. Typical frequencies used are in the range 1–3 kHz. The dependence on the frequency is usually small, but may become appreciable at very high frequencies, an effect known as the Debye–Falkenhagen effect.

A wide variety of instrumentation is commercially available. There are two types of cell, the classical type with flat or cylindrical electrodes and a second type based on induction. Many commercial systems, Myron L meters, e.g.,  offer automatic temperature correction.

MyronLMeters.com offers many reliable conductivity meters – some analog, some digital, some pen-style, some multiparameter – but all accurate, reliable, and easy-to-use.

Myron L analog handheld conductivity meter 512M5

 

 

 

 

 

 

 

 

 

Analog Handheld conductivity meter

512M5: 0-5000 micromhos/microsiemens

Instant and accurate Conductivity tests

Electronic Internal Standard for easy field calibration

Fast Auto Temperature Compensation

Rugged design for years of trouble-free testing

Simple to use

 

Myron L Digital Handheld Conductivity, TDS, Salinity Pen

 

 

 

 

 

 

 

 

 

Digital Handheld Conductivity, TDS, Salinity Pen

ULTRAPEN PT1 Conductivity – TDS – Salinity Pen

Accuracy of +/-1% of READING (+/-.2% at Calibration Point)

Reliable Repeatable Results

Solution modes: KCl, NaCl and 442

Automatic Temperature Compensation

Autoranging

Durable, Fully Potted Circuitry

Waterproof

 

Myron L Digital Handheld Multiparameter Meter: Ultrameter 6P II FCe

 

 

 

 

 

 

 

 

 

Digital Handheld Multi-Parameter meter: Conductivity, TDS, Resistivity, pH, ORP, Temperature, Free Chlorine (FCE)
+/-1% Accuracy of Reading
Memory Storage: Save up to 100 samples w/ Date & Time stamp
Wireless Download Module Optional
Waterproof

 

Myron L digital inline conductivity monitor/controller 758II

 

 

 

 

 

 

 

 

 

Digital In-Line Conductivity Monitor/Controller

The unique circuitry of our 750 Series II Conductivity Inline Meters guarantees accurate and reliable measurements. Drift-free performance is assured by “field proven” electronics, including automatic DC offset compensation and highly accurate drive voltage.

Since Temperature Compensation is at the heart of accurate water measurement, all Myron L Monitor/controllers feature a highly refined and precise TC circuit. This feature perfectly matches the water temperature coefficient as it changes. All models are corrected to 25′C. The TC may be disabled to conform to USP requirements.

 

 

Categories : Product Updates, Technical Tips

Boiler and Cooling Tower Water – MyronLMeters.com

Posted by 15 Sep, 2012

TweetBoilers and cooling towers share two major water related problems: deposits and corrosion. As a boiler or water evaporating from a cooling tower generates steam, dissolved minerals are left behind, increasing the concentration of these minerals. Additional minerals are introduced via the water added to makeup the water lost to steam/evaporation. Eventually, the minerals reach […]

Boilers and cooling towers share two major water related problems: deposits and corrosion. As a boiler or water evaporating from a cooling tower generates steam, dissolved minerals are left behind, increasing the concentration of these minerals. Additional minerals are introduced via the water added to makeup the water lost to steam/evaporation. Eventually, the minerals reach a level (or cycle) of concentration that will cause either loss of efficiency due to scale or damage from corrosion. This level can be determined by the Ryznar or Langlier indices and correlated to a conductivity or TDS range. Most people recognize problems associated with corrosion. Effects from scale deposits, however, are equally important. For example, as little as 1/8″ of scale can reduce the efficiency of a boiler by 18% or a cooling tower heat exchanger by 40%!

A variety of water treatment methods are employed in an effort to control these problems. Even with water treatment, it is still necessary to regularly blow down or bleed off part of the concentrated water and make up with lower salinity water to reduce the overall mineral concentration.

To conserve water and treatment chemicals, it is desirable to allow the dissolved minerals to reach a maximum cycle of concentration while still avoiding problems. Because feed water/make-up waters vary in the types and amounts of minerals present, the allowable cycles of concentration will vary. As a result, regular testing of boiler and cooling waters is essential to optimize water treatment programs and blow down schedules. Tests commonly performed include conductivity or TDS, pH and ORP. Myron L meters provide you with a simple, fast, and accurate means of testing these parameters.

Many cooling towers and boilers have inline controllers used to release water from the tower or boiler and feed chemical(s) into the system. The controllers must be calibrated regularly to ensure fouling or drift of the sensor has not occurred. Our portable instruments in conjunction with NIST traceable standard solutions provide rapid verification of the accuracy of inline controllers. This method reduces manpower and the likelihood of disturbing or damaging sensors.

Conductivity

Conductivity is the measurement of a solution’s ability to transmit an electrical current. It is usually expressed in microsiemens/cm (micromhos/cm). Pure water is actually a poor electrical conductor (18,200,000 ohms/cm of resistance). It is the amount of ionized substances (or salts) dissolved in water, which determines the conductivity. Because the vast majority of the dissolved minerals in water are these conductive inorganic impurities, conductivity measurement is an excellent indicator of mineral concentration.

Myron L meters were developed for just this purpose. Models are available which display conductivity and/or ppm of TDS. For detailed information regarding the relationship between conductivity and TDS, please see the our Application Bulletin: Standard Solutions and Buffers.

pH

pH, the measurement of acid or base, is one of the most important factors affecting scale formation or corrosion in a boiler or cooling system. The types of impurities comprising the mineral concentration behave differently at various pHs. Low pH waters have a tendency to cause corrosion, while high pH waters may cause scale formation.

Boiler water

Boiler water requirements can range from very pure to more than 6500 microsiemens, depending on size, pressure, application, and feed water. Once the maximum cycles of concentration has been established, a conductivity instrument can conveniently help you to determine if the blow down schedule is adequate. Samples should be cooled to at least 160°F/71°C to ensure accurate temperature compensated readings.

Boiler condensate

Boiler condensate samples are often tested to determine if there is any carryover of boiler water solids or contaminants entering from outside the system. Condensate is relatively pure water, and values of 2-100 microsiemens are common. Because of these low values, a multiple-range instrument is recommended to increase the resolution and accuracy of the reading. Monitoring the pH of condensate is also important since condensate is very corrosive at low pHs. Treatment additives are often added to elevate the pH to minimize corrosion in condensate lines.

Cooling tower water

Cooling tower water has become more challenging since the reduced use of acid and the elimination of chromate. Monitoring conductivity and pH has become imperative to maintain a proper treatment program. Although many systems have controls on these parameters, the possibility of a system upset is always present. Even slight upsets can cause rapid scaling of heat exchangers.

Biological Growth

Biological growth is another extremely important facet to proper cooling water management. Microbes can cause corrosion, fouling, and disease. Oxidizing biocides (chlorine, chlorine dioxide, ozone and bromine) have been employed to keep bacteria under control. Monitoring of the ORP (Oxidation Reduction Potential)/redox is very useful in its ability to correlate millivolt readings to sanitization strength of the water. The ULTRAMETER II™ 6P includes this parameter for quick on-site determinations.

Ultrameter II 4P  Ultrameter II 6P  TechPro II TH1  TechPro II TP1  TechPro II TPH1  M6/pH

EP11/pH   512M5   EP10  EP  inline monitors/controllers

Categories : Application Advice, Technical Tips

Reverse Osmosis and Measurement for Home and Commercial Systems

Posted by 23 Aug, 2012

Tweet OSMOSIS Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached. Reverse Osmosis (RO) is a membrane process of purification which removes most of the total dissolved solids (TDS) in water by reversing the natural process of osmosis. […]

OSMOSIS

Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached. Reverse Osmosis (RO) is a membrane process of purification which removes most of the total dissolved solids (TDS) in water by reversing the natural process of osmosis. Pressure is applied to a TDS-concentrated solution against a semi-permeable membrane, causing pure water to diffuse through the membrane. RO has become an important process for a wide variety of applications including: medical, laboratory, desalination, industrial wastewater, Deionized (Dl) pretreatment, and drinking water.

TESTING RO WATER QUALITY

Electrical conductivity is the most convenient method for testing RO water quality and membrane performance. Pure water is actually a poor electrical conductor. The amount of ionized substances (salts, acids, or bases) dissolved in water determines its conductivity. Normally, the vast majority of the dissolved minerals in tap, surface or ground water are conductive impurities. Myron L Company has conducted extensive research relating conductivity to TDS, resulting in instrumentation and calibration solutions which have become the standard of the RO industry.

When calibrating your conductivity instrument for testing fresh water, the “442 Natural Water Standard™” solutions are the best choice. These solutions are available in various concentrations.
442 solutions contain the following salts diluted in pure water: 40% sodium bicarbonate, 40% sodium sulfate and 20% sodium chloride. These are the most common salt compounds in surface and ground water. A sodium chloride solution provides better results in brackish or sea water because the predominant salt in these waters is sodium chloride.

ORP

ORP (Oxidation Reduction Potential/REDOX) and pH are important parameters in measuring the success and useful life of an RO membrane. The ORP may be used to determine the activity of an oxidizer. RO membranes are susceptible to attack by oxidizers such as chlorine, bromine, ozone and hydrogen peroxide. The activity of the oxidizer is more informative than the chemical residual because it determines the ability and speed of oxidation. A high ORP reading would indicate a need for pretreatment. A low ORP may indicate biological activity which may cause fouling of the membranes.

ORP can also be used to determine an overfeed of sodium bisulfite, which is used to reduce chlorine. If the ORP reading is under 200 mV, you have a reducing condition. This overfeed costs extra money and can lead to environmental discharge problems. It is best to check the reject water, where the concentration is highest. This will show even minute quantities of oxidizers or reducers.

pH

pH is very useful in predicting membrane life and the scaling potential of feedwater. The higher the pH and calcium, the more likely it is that scale will form on the membranes. However, with silicon based compounds, a low pH will increase the tendency for scaling. Membranes also have a pH range where operation is optimal. It is often useful to check the pH of the reject water to help determine scaling potential.

HOME SYSTEMS
Myron L Meters carries single and multiple range handheld instruments. Model RO-1 and RO-1NC are reliable, single range instruments used to demonstrate the RO process to a prospective buyer. The color coding of the model RO-1 dial dramatizes the difference between high TDS (red- above EPA recommended limits for drinking water), medium TDS (orange – within EPA recommended standards for drinking water), and low TDS RO water (blue-high purity water). Installers prefer the three range 532 models or TechPro II™ TP1 or TPH1 because they are ideal for accurately testing both feed and product water.

COMMERCIAL/INDUSTRIAL
Larger RO systems such as those found in bottled water plants, hospitals, industrial process, or seawater desalination require continuous monitoring to verify water quality and membrane condition. For continuous measurement of water quality, Myron L Meters carries the 720 and 750 Series II Monitor/ controllers. Monitor only, and monitor/controller models are available. Monitor/controller models contain an adjustable set point and a heavy-duty 10 amp relay which can be used to activate alarms, valves, autodialers, etc. A variety of options and outputs are available to cost-effectively tailor the monitor to the particular RO application.

The Ultrameter™ 9PTK, 6PII and 4PII are preferred by water treatment professionals for calibrating and checking Commercial/industrial RO systems. They appreciate the waterproof case, ability to store and record 100 memory data records, and three preprogrammed solution curves. Ultrameters are compact, but their multiple parameters give them the versatility of several instruments.

Myron L Meters also carries pen style meterss for dip or scoop sampling. The ULTRAPEN PT1 delivers stable, lab-accurate readings of Conductivity, TDS, Salinity and Temperature. The PT2 pH and Temperature pen is also available for spot checks and pretreatment screening. Both pens are waterproof, durable, and easy to use with one-button functioning.

Visit us here to save 10% on any of our Myron L meters: http://www.myronlmeters.com/Digital-Multiparameter-Meters-s/48.htm

Categories : Product Updates, Science and Industry Updates

Myron L Meters Thanks Dalscorp of Brunswick, Maine!

Posted by 3 Jul, 2012

Tweet Myron L Meters thanks Dalscorp engineering consultants of Brunswick, Maine, proud owners of a new Ultrapen PT1 conductivity/TDS/salinity pen. ULTRAPEN PT1 Conductivity/TDS/Salinity Pen. This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that […]

Dh-up-pt1-2t

Myron L Meters thanks Dalscorp engineering consultants of Brunswick, Maine, proud owners of a new Ultrapen PT1 conductivity/TDS/salinity pen.

ULTRAPEN PT1 Conductivity/TDS/Salinity Pen. This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorithms; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true, one-handed instrument, the PT1 is easy to calibrate and easy to use. To take a measurement, you simply press a button then dip the pen in solution. Results display in seconds.

 

 

 

ULTRAPEN – PT1 

 

1. Push Button – turns instrument on in saved measurement mode; selects mode and unit preferences.
2. Pen Cap – provides access to battery for replacement.
3. Clip – holds pen to shirt pocket for secure storage.
4. Battery Indicator – indicates charge left in battery.
5. Display – displays measurements, mode options and battery indicator.
6. LED Indicator Light – indicates when to dip instrument in solution, when measurement is in progress, and when to remove instrument from solution.
7. Electrodes – measure electric current of solution.
8. Cell – contains flux field in defined area for accurate current measurement.
9. Scoop – contains sample solution for measurement when sampling from a vertical stream. To use, slide the open end of the scoop over the bottom of the pen until the neck of the scoop is flush with the top of the cell. Hold pen with scoop end under stream. Rinse and fill with sample solution 3 times. Fill with solution again, then take measurement. We recommend you recalibrate the pen using the scoop to retain accuracy of ±1%.

 

Features

  • PT1 Comes with:
  • PT1 Pocket Tester Pen – battery installed
  • Scoop
  • Pocket Clip
  • Holster
  • Lanyard
  • Operating Instructions

Myron L Meters is proud to do business with Dalscorp.

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Categories : MyronLMeters.com Valued Customers

MyronLMeters.com Announces the Myron L Ultrapen PT1

Posted by 28 Feb, 2011

TweetMyronLMeters.com today announced the imminent release of a new Myron L product, the Myron L Ultrapen PT1, a reliable, easy-to-use pen-style meter that measures 3 parameters – conductivity, TDS, and salinity. FOR IMMEDIATE RELEASE San Diego, California, United States of America(Free-Press-Release.com) February 27, 2011 – MyronLMeters.com today announced the arrival of a new Myron L product, the […]

MyronLMeters.com today announced the imminent release of a new Myron L product, the Myron L Ultrapen PT1, a reliable, easy-to-use pen-style meter that measures 3 parameters – conductivity, TDS, and salinity.

FOR IMMEDIATE RELEASE

San DiegoCaliforniaUnited States of America(Free-Press-Release.com) February 27, 2011 –


MyronLMeters.com today announced the arrival of a new Myron L product, the Myron L Ultrapen PT1, a reliable, easy-to-use pen-style meter that measures 3 parameters – conductivity, TDS, and salinity.

“The Myron L Ultrapen PT1 will be available soon

Myron L Ultrapen Conductivity TDS Salinity Meter

Myron L Ultrapen Conductivity TDS Salinity Meter

at MyronLMeters.com,” said James Rutan, president, “and it’s going to be a great seller. The Pocket Tester’s convenience, durability, accuracy, and reliability are unmatched in the industry. It comes complete with a battery installed (and an extra), holster, lanyard, scoop, and instructions. The Myron L PT1 is waterproof, has fully secured circuitry and, as always, MyronLMeters.com has made it easy to order. At MyronLMeters.com, you get a 10% discount…just for ordering online. In addition, all Myron L meters in stock will ship the next business day. The quality of the Ultrapen PT1 and the company’s great reputation for reliable meters is sure to make this a big hit. It even looks great!”

Myron L meters are renowned for their accuracy, reliability, and ease of use, and have applications in automatic rinse tank controls, boiler and cooling towers, circuit board cleanliness testing, deionized water, environmental applications, fountain solutions, dialysis, horticulture, hydroponics, ORP (oxidation reduction potential)/Redox, pool and spa, reverse osmosis, textiles.

MyronLMeters.com has a well-established a web presence on Facebook, Gravatar, Twitter, Squidoo, LinkedIn, and WordPress. MyronLMeters.com encourages customers to join them on these sites for special offers and discounts.

More at http://www.myronlmeters.com


Categories : Product Updates

What Is Conductivity?

Posted by 25 Feb, 2011

TweetConductivity is the ability of a material to transmit energy in the form of electricity or heat. In water quality terms, it indicates how much conductive material is in the water. The higher the conductivity measurement, the more conductive material is in the water. The standard unit of measure for conductivity is Siemens per meter […]

Conductivity is the ability of a material to transmit energy in the form of electricity or heat. In water quality terms, it indicates how much conductive material is in the water. The higher the conductivity measurement, the more conductive material is in the water.

The standard unit of measure for conductivity is Siemens per meter (S/m).

The siemens (symbol: S) is a unit of electric conductance and electric admittance. Conductance and admittance are the reciprocals of resistance and impedance respectively, hence one siemens is equal to the reciprocal of one ohm, and is sometimes referred to as the mho. It is named after the German inventor and industrialist Ernst Werner von Siemens. In English, the term siemens is used both for the singular and plural.

When testing water quality for conductivity measurements, you will hear terms like microsiemens, micromhos, millisiemens, and millimhos.

-Microsiemens (uS) is the same as the micromhos (umhos).

-Millisiemens (mS) is the same as millimhos (mmhos).

These units of measure operate the same way as metric distance measures. The meter is short and the kilometer is long, but they both measure distance. Microsiemens and millisiemens work the same way. 1 millisiemen is equal to 1000 microsiemens.

Different materials conduct electricity differently – this principle applies to dissolved materials, as well. If you have a tablespoon of sodium chloride (table salt) and dump it in a glass of pure water, then take another tablespoon of potassium chloride salts and dump it in another glass of pure water, the conductivity measurements from the two glasses will be different.

Some typical conductivity measurements of water:

Ultra pure water: 0.05 – 1.0 microsiemens

Drinking water: 200 – 500 microsiemens

Seawater: 30,000 – 50,000 microsiemens

It is important to use a conductivity meter that can test different salt types and properly compensate for temperature differences in order to get the most accurate conductivity measurements.

To learn about Conductivity vs. TDS, check out this blog post:  http://blog.myronlmeters.com/archive/5

Categories : Technical Tips

MyronLMeters.com Announces the Arrival of the Myron L Ultrameter III 9P

Posted by 17 Feb, 2011

MyronLMeters.com today announced the arrival of a new Myron L product, the Myron L Ultrameter III, a reliable, easy-to-use meter that measures 9 parameters – conductivity, resistivity, TDS, alkalinity, hardness, saturation index, ORP/free chlorine, pH and temperature.

Myron L Ultrameter III 9P

MyronLMeters.com today announced the arrival of a new Myron L product, the , Myron L Ultrameter III 9P , a reliable, easy-to-use meter that measures 9 parameters – conductivity, resistivity, TDS, alkalinity, hardness, saturation index, ORP/free chlorine, pH and temperature.

“The Ultrameter III is available right now at MyronLMeters.com,” said James Rutan, president. “We’ve made it easy to order, offer great training videos, technical bulletins, manuals, and a 10% discount…just for ordering online. In addition, all Myron L Meters in stock will ship the next business day. The quality of the Ultrameter III and the company’s great reputation for reliable meters is sure to make this a big hit. Don’t forget – this new Ultrameter has wireless data transfer capability when you buy the bluDock.  Expect about a 10 day lead time for a week or so.”

MyronLMeters.com carries the full line of Ultrameter III accessories, including the Ultrameter III 9PTK AHL Titration kit, soft protective case, replacement sensors, and the full line of standard solutions and buffers – all at a 10% discount when you order online.

Myron L meters are renowned for their accuracy, reliability, and ease of use, and have applications in automatic rinse tank controls, boiler and cooling towers, circuit board cleanliness testing, deionized water, environmental applications, fountain solutions, dialysis, horticulture, hydroponics, ORP (oxidation reduction potential)/Redox, pool and spa, reverse osmosis, textiles.

MyronLMeters.com has a well-established web presence on Facebook, Gravatar, Twitter, Squidoo, LinkedIn, and WordPress. MyronLMeters.com encourages customers to join them on these sites for special offers and discounts.

Tags: MyronLMeters.com, Myron L, Myron L meters, Ultrameter III, conductivity, resistivity, TDS, alkalinity, hardness, saturation index, ORP/free chlorine, pH and temperature, automatic rinse tank controls, boiler and cooling towers, circuit board cleanliness testing, deionized water, environmental applications, fountain solutions, dialysis, horticulture, hydroponics, ORP (oxidation reduction potential)/Redox, pool and spa, reverse osmosis, textiles

Categories : Product Updates

Posted by 23 Jan, 2011

Tweet Basic Tips For Choosing The Proper Instrument For Water Quality Tests

Basic Tips For Choosing The Proper Instrument For Water

Quality Tests

Categories : Uncategorized

How To Calibrate Conductivity and TDS – DS Meter

Posted by 30 Dec, 2010

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MyronLMeters.com will keep you up-to-date with the latest product and industry videos, as well as the most accurate, reliable, easy-to-use water quality testing meters.

Please visit us on the web at:
http://www.myronlmeters.com

Facebook: http://www.facebook.com/pages/Myron-L-Meters/147455608645777

Google +: https://plus.google.com/112342237119950323462
Twitter: http://twitter.com/MyronLMeters

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News: http://waterindustrynews.com

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