Measuring Key Water Quality Parameters: MyronLMeters.com

Posted by 12 Apr, 2014

TweetThe right meter is essential for measuring any of several key water quality parameters:Conductivity is the ability of water to conduct an electrical current and is an indirect measure of the conductive ionic mineral concentration. The more conductive ions that are present, the more electricity can be conducted by the water. This measurement is expressed […]

The right meter is essential for measuring any of several key water quality parameters:

Conductivity is the ability of water to conduct an electrical current and is an indirect measure of the conductive ionic mineral concentration. The more conductive ions that are present, the more electricity can be conducted by the water. This measurement is expressed in microsiemens per centimeter (µS/cm) at 25º Celsius. Myron L Meters carries a complete line of conductivity meters, including the Ultrameter II 4P.

Resistivity is the inverse of conductivity. Electrical conductivity is a measure of water’s resistance to an electric current. Water itself has a weak electrical conductivity. Electric current is transported in water by dissolved ions, making conductivity measurement a quick and reliable way to monitor the total amount of ionic contaminants in water. Myron L Meters carries a complete line of resistivity meters, including inline monitor/controllers like the 753II Resistivity Digital Monitor/Controller.

Total Dissolved Solids (TDS) is also a measurement of the amount of dissolved minerals in the water. In this instance they would be called solids in solution. The quantity of dissolved solids in the solution is directly proportional to the conductivity. In this case, conductivity is the measurement but it is used to estimate TDS. It is measured with a conductivity meter but is reported as TDS in parts per million (ppm), via a complex algorithm. Myron L Meters carries a complete line of TDS meters, including the Ultrapen PT1.

pH is a measure of the concentration of hydrogen ions in the water, indicating the acidity or alkalinity of the water. On the pH scale of 0-14, a reading of 7 is considered to be neutral. Readings below 7 indicate acidic conditions, while readings above 7 indicate the water is alkaline or basic. Naturally occurring fresh waters have a pH range between 6 and 8. Myron L Meters carries a complete line of pH meters, including the Ultrapen PT2

Temperature is expressed in degrees Celsius (C) or Fahrenheit (F). Most digital handheld Myron L Meters include a temperature function.



Oxidation reduction potential (ORP)can correlate millivolt readings to the sanitization strength of the water. Microbes can cause corrosion, fouling, and disease, and oxidizing biocides are usually used to keep microbial levels under control. ORP is expressed in millivolts (mV). Myron L Meters carries a complete line of ORP meters, including the Ultrapen PT3

Free Chlorine refers to both hypochlorous acid (HOCl) and the hypochlorite (OCl–) ion or bleach, and is commonly added to water systems for disinfection. Free chlorine is typically measured in drinking water disinfection systems to find whether the water system contains enough disinfectant.  Myron L Meters Ultrameter II 6PFCe and Ultrapen PT4 can both be used to measure free chlorine.

Salinity is simply a measure of the amount of salts dissolved in water, a measurement useful to pool service technicians and others.  You can measure salinity with a Myron L Pool Pro PS6.

Alkalinity is a measure of the capacity of water or any solution to neutralize or “buffer” acids. This measure of acid-neutralizing capacity is important in figuring out how “buffered” the water is against sudden changes in pH. Alkalinity is a titration function of the Ultrameter III 9PTKA.

Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals.  As water moves through soil and rock, it dissolves very small amounts of minerals and holds them in solution. Calcium and magnesium dissolved in water are the two most common minerals that make water “hard.” Hardness is a titration function of the Ultrameter III 9PTKA.

LSI or Langelier Saturation Index helps you determine the scaling potential of water. LSI is a calculated number used to predict the calcium carbonate stability of water. It indicates whether the water will precipitate, dissolve, or be in equilibrium with calcium carbonate. LSI is a titration function of the Ultrameter III 9PTKA.

MyronLMeters.com is the premier internet retailer of accurate, reliable Myron L meters.  Save 10% when you order Myron L meters online at MyronLMeters.com. You’ll find reliable instruments for every water quality parameter mentioned above.



 

 

 

Categories : Uncategorized

Measuring Key Water Quality Parameters: MyronLMeters.com

Posted by 12 Apr, 2014

TweetThe right meter is essential for measuring any of several key water quality parameters: Conductivity is the ability of water to conduct an electrical current and is an indirect measure of the conductive ionic mineral concentration. The more conductive ions that are present, the more electricity can be conducted by the water. This measurement is […]

The right meter is essential for measuring any of several key water quality parameters:

Conductivity is the ability of water to conduct an electrical current and is an indirect measure of the conductive ionic mineral concentration. The more conductive ions that are present, the more electricity can be conducted by the water. This measurement is expressed in microsiemens per centimeter (µS/cm) at 25º Celsius. Myron L Meters carries a complete line of conductivity meters, including the Ultrameter II 4P.

Resistivity is the inverse of conductivity. Electrical conductivity is a measure of water’s resistance to an electric current. Water itself has a weak electrical conductivity. Electric current is transported in water by dissolved ions, making conductivity measurement a quick and reliable way to monitor the total amount of ionic contaminants in water. Myron L Meters carries a complete line of resistivity meters, including inline monitor/controllers like the 753II Resistivity Digital Monitor/Controller.

Total Dissolved Solids (TDS) is also a measurement of the amount of dissolved minerals in the water. In this instance they would be called solids in solution. The quantity of dissolved solids in the solution is directly proportional to the conductivity. In this case, conductivity is the measurement but it is used to estimate TDS. It is measured with a conductivity meter but is reported as TDS in parts per million (ppm), via a complex algorithm. Myron L Meters carries a complete line of TDS meters, including the Ultrapen PT1.

pH is a measure of the concentration of hydrogen ions in the water, indicating the acidity or alkalinity of the water. On the pH scale of 0-14, a reading of 7 is considered to be neutral. Readings below 7 indicate acidic conditions, while readings above 7 indicate the water is alkaline or basic. Naturally occurring fresh waters have a pH range between 6 and 8. Myron L Meters carries a complete line of pH meters, including the Ultrapen PT2

Temperature is expressed in degrees Celsius (C) or Fahrenheit (F). Most digital handheld Myron L Meters include a temperature function.

Oxidation reduction potential (ORP) can correlate millivolt readings to the sanitization strength of the water. Microbes can cause corrosion, fouling, and disease, and oxidizing biocides are usually used to keep microbial levels under control. ORP is expressed in millivolts (mV). Myron L Meters carries a complete line of ORP meters, including the Ultrapen PT3

Free Chlorine refers to both hypochlorous acid (HOCl) and the hypochlorite (OCl–) ion or bleach, and is commonly added to water systems for disinfection. Free chlorine is typically measured in drinking water disinfection systems to find whether the water system contains enough disinfectant.  Myron L Meters Ultrameter II 6PFCe and Ultrapen PT4 can both be used to measure free chlorine.

Salinity is simply a measure of the amount of salts dissolved in water, a measurement useful to pool service technicians and others.  You can measure salinity with a Myron L Pool Pro PS6.

Alkalinity is a measure of the capacity of water or any solution to neutralize or “buffer” acids. This measure of acid-neutralizing capacity is important in figuring out how “buffered” the water is against sudden changes in pH. Alkalinity is a titration function of the Ultrameter III 9PTKA.

Hardness is caused by compounds of calcium and magnesium, and by a variety of other metals.  As water moves through soil and rock, it dissolves very small amounts of minerals and holds them in solution. Calcium and magnesium dissolved in water are the two most common minerals that make water “hard.” Hardness is a titration function of the Ultrameter III 9PTKA.

LSI or Langelier Saturation Index helps you determine the scaling potential of water. LSI is a calculated number used to predict the calcium carbonate stability of water. It indicates whether the water will precipitate, dissolve, or be in equilibrium with calcium carbonate. LSI is a titration function of the Ultrameter III 9PTKA.

MyronLMeters.com is the premier internet retailer of accurate, reliable Myron L meters.  Save 10% when you order Myron L meters online at MyronLMeters.com. You’ll find reliable instruments for every water quality parameter mentioned above.

 

 

 

Categories : Application Advice, Case Studies & Application Stories, Technical Tips

New FAQ Section: MyronLMeters.com

Posted by 7 Apr, 2014

Tweet Myron L Meters Improved FAQ FAQ pages should be a simple, and quick, way to share answers to common questions held by visitors and customers. A good FAQ page should always be helpful to us and our customers. Our new FAQ section will feature straightforward answers, organized video links, links to blog posts, and […]

Myron L Meters Improved FAQ

FAQ pages should be a simple, and quick, way to share answers to common questions held by visitors and customers. A good FAQ page should always be helpful to us and our customers.

Our new FAQ section will feature straightforward answers, organized video links, links to blog posts, and site links to manuals and reference material.
We’ll feature helpful how-to videos like the ones below.

Click here for a preview of how it will be organized, and keep your questions and suggestions coming to info@myronlmeters.com.

 

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Video: How to Replace an Ultrameter pH Sensor myron-l-meters-ultrameter-ii-6p-ph-sensor-replacement_thumbnail.jpg
Video: How to Select an Inline Monitor /Controllerhow-to-select-an-inline-water-quality-monitor-controller-for-your-water-system-myron-l-meters_thumbnail.jpg
Video: Myron L Ultrapen PT-1 Product Overviewultrapen-pt1-product-overview-video_thumbnail.jpg

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Categories : Company News, Videos

New FAQ Section: MyronLMeters.com

Posted by 7 Apr, 2014

Tweet Myron L Meters Improved FAQ FAQ pages should be a simple, and quick, way to share answers to common questions held by visitors and customers. A good FAQ page should always be helpful to us and our customers.Our new FAQ section will feature straightforward answers, organized video links, links to blog posts, and site […]




Myron L Meters Improved FAQ

FAQ pages should be a simple, and quick, way to share answers to common questions held by visitors and customers. A good FAQ page should always be helpful to us and our customers.

Our new FAQ section will feature straightforward answers, organized video links, links to blog posts, and site links to manuals and reference material.We’ll feature helpful how-to videos like the ones below.

Click here for a preview of how it will be organized, and keep your questions and suggestions coming to info@myronlmeters.com.

 

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Video: How to Replace an Ultrameter pH Sensor myron-l-meters-ultrameter-ii-6p-ph-sensor-replacement_thumbnail.jpg
Video: How to Select an Inline Monitor /Controllerhow-to-select-an-inline-water-quality-monitor-controller-for-your-water-system-myron-l-meters_thumbnail.jpg
Video: Myron L Ultrapen PT-1 Product Overviewultrapen-pt1-product-overview-video_thumbnail.jpg


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Categories : Uncategorized

Ultrapen PT1 Conductivity, TDS and Salinity Pen Measurement: MyronLMeters.com

Posted by 3 Apr, 2014

TweetI. solution selection The PT1 allows you to select from several preprogrammed measurement modes. The following table lists measurement modes with their corresponding parameters; temperature compensation and TDS conversion solution models; and units of measure. Mode Parameter solution Model units Cond KCl Conductivity potassium chloride microsiemens (µS) tds 442 Total Dissolved Solids (TDS) 442™ Myron L […]

I. solution selection

The PT1 allows you to select from several preprogrammed measurement modes. The following table lists measurement modes with their corresponding parameters; temperature compensation and TDS conversion solution models; and units of measure.

Mode Parameter solution Model units
Cond KCl Conductivity potassium chloride microsiemens (µS)
tds 442 Total Dissolved Solids (TDS) 442™ Myron L NaturalWater Standard parts per million (ppm)
tds NaCl TDS sodium chloride ppm
salt 442 Salinity 442™ Myron L NaturalWater Standard parts per thousand (ppt)
salt NaCl Salinity sodium chloride ppt

 

esc This is the escape function. Selecting escape exits solution selection without saving changes and turns the PT1 off.

 

To select a measurement mode:
1. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode. If the measurement parameter and solution type displayed are correct, proceed to Temperature Unit Selection.

If not, proceed to step 2.

2. Immediately push and hold the push button. The display will scroll through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release the button when “SOL SEL” displays.

3. While the display scrolls through “PUSHnHLD” and “SOL SEL”, push and hold the push button. The display will scroll through “Cond KCl”, “tdS 442”, “tdS NaCl”, “SALt 442”, “SALt NaCl” and “ESC”. Release when the desired measurement mode displays.

4. “SAVED” displays indicating the measurement mode is saved in memory. Allow the pen to time out to turn power off.

II. Temperature Unit Selection

The PT1 allows you to select the type of units used for temperature measurements. The following table lists preference options with their corresponding units.

Mode Unit Preference

C Degrees Celsius

F Degrees Fahrenheit

esc This is the escape function. Selecting escape exits temperature unit selection without saving changes and turns the PT1 off.

To set the preference:
1. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode.
2. Immediately push and hold the push button. The display will scroll through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release the button when “ºCºF TEMP” displays.
3. While the display scrolls through “PUSHnHLD” and “ºCºF TEMP”, push and hold the push button. The display will scroll through “C”, “F” and “ESC”. Release when the desired unit option displays.
4. “SAVED” displays indicating the unit preference is saved in memory.
Allow the pen to time out to turn power off.

III. Normal Operation

Before you take a reading, make sure the pen is clean, calibrated and in the appropriate measurement mode. The sample solution must also be within the specified measurement range. Keep all foreign material away from the sample to avoid contamination.

Note: If you cannot dip the pen in the sample solution, pour the sample into a clean container. If you don’t have a sample container and need to test a vertical stream of solution, use the scoop.

The following table explains what the LED Indicator Light signals mean and gives the duration of each signal.

LED Indicator Light Signal Meaning duration

Rapid Flashing Dip pen in solution 6 sec

Slow Flashing Measurement in process 10-20 sec

Solid Light Note measurement value 6 sec

CAUTION: To measure solution at the extremes of the specified temperature range, allow the pen to equilibrate by submerging the cell in the sample solution for 1 minute prior to taking a measurement.

1. Rinse the pen 3 times by submerging the cell in fresh sample solution and swirling it around.

2. Remove pen from solution, then press and release the push button. Firmware version will be displayed, then current measurement mode.

3. Grasp the pen by its case with your fingers positioned between the display and the pen cap to avoid sample contamination.

4. While the LED flashes rapidly, dip the pen in fresh sample solution so that the cell is completely submerged. If you do not submerge the cell in solution before the flashing slows, allow the pen to power off and retake the reading.

5. While the LED flashes slowly, swirl the pen around to remove bubbles, keeping the cell submerged. Keep the pen at least 1 inch (2½ cm) away from sides/bottom of container, if applicable.

6. When the LED turns on solid, remove the pen from solution. The display will alternate between the measurement and temperature readings. Note the readings for your records.

MyronLMeters.com is the premier internet retailer of the Ultrapen PT1 and other reliable Myron L meters. Save 10% on Myron L meters when you order online HERE.

Categories : Product Updates

Ultrapen PT1 Conductivity, TDS, Salinity Pen Features: MyronLMeters.com

Posted by 3 Apr, 2014

TweetThe ULTRAPEN™ PT1 Conductivity/ TDS/Salinity Pen 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 […]

The ULTRAPEN™ PT1 Conductivity/ TDS/Salinity Pen 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.

Features
1. Push Button — turns instrument on; 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%.

Technical Specs

Measurement Range: 1 – 9999 µS or ppm (0.0010 – 9.999 ppt salinity)
Accuracy (After Wet Calibration): ± 1% of reading
Repeatability: < 1000 µS or ppm ± 1 Count
≥ 1000 µS or ppm ± 0.3% of reading
Resolution: Conductivity and TDS:
0.1 for 1.0 – 99.9 µS or ppm
1 for 100 – 9999 µS or ppm
Salinity: 0.0001 for 0.0010 – 0.0999 ppt
0.001 for 0.100 – 9.999 ppt
Temperature: 0.1 ºC or ºF
Time to Reading Stabilization: 10 – 20 seconds
Active Mode Power Consumption: 30 – 100 mA
Sleep Mode Power Consumption: 2 µA
Temperature Measurement Range: 0 – 71° C or 32 – 160° F
Temperature Accuracy Displayed: ± 0.1 ºC or ± 0.1 ºF
Temperature Compensation Method: Automatic to 25ºC
Physical Dimensions: 17.15 cm L x 1.59 cm D or 6.75 in. L x .625 in. D
Weight: 55 g or 1.94 oz.
Case Material: Anodized Aluminum with Protective Coating
Battery Type: N type, Alkaline
Battery Voltage: 1.5 V
Calibration Solution Point: 1800 µS KCl; 3000 ppm 442™ (2027 ppm NaCl)
Operating/Storage Temperature: 0 – 55ºC or 32 – 131ºF
Water Resistance: IP67 and NEMA 6

Electrostatic discharge to case of instrument may cause PT1 to spontaneously power on. In this case, the PT1 will power off after several seconds.

MyronLMeters.com is the premier internet retailer of the Ultrapen PT1 and other reliable Myron L meters. Save 10% on Myron L meters when you order online HERE.

Categories : Product Updates

Thank You Myron L Meters Customers 2013: MyronLMeters.com

Posted by 7 Dec, 2013

Tweet Myron L Meters is proud to be the premier internet retailer of Myron L Ultrameters, Ultrapens, and other fine products. Myron L meters have a well-earned reputation for being accurate, reliable, and easy-to-use. We’d like to thank the following 2013 customers who ordered for the first time through our MyronLMeters.com website, as well as the hundreds […]

Myron L Meters is proud to be the premier internet retailer of Myron L Ultrameters, Ultrapens, and other fine products. Myron L meters have a well-earned reputation for being accurate, reliable, and easy-to-use. We’d like to thank the following 2013 customers who ordered for the first time through our MyronLMeters.com website, as well as the hundreds not listed here. Thank you for your business.

COMPANIES
NESTLE
COCA-COLA
DUPONT
TARGET
INTERNATIONAL PAPER
PANASONIC
SIERRA NEVADA
BAYER
GENERAL MILLS
PEPSI
FUJIFILM
CULLIGAN
VEOLIA
NALCO
GLAXO SMITH KLINE
BP
DUPONT
MICHELIN
ALCOA
TYSON
SMUCKER’S
GOOGLE
DUKE ENERGY
HILLSHIRE FARMS

MEDICAL ORGANIZATIONS
DAVITA
FRESENIUS
UC IRVINE MEDICAL CENTER
RED BUD REGIONAL HOSPITAL
HALIFAX REGIONAL HOSPITAL
ELIK DIALYSIS CENTER

GOVERNMENT ORGANIZATIONS
OAK RIDGE NATIONAL LABORATORY
BROOKHAVEN NATIONAL LABORATORY
PACIFIC NORTHWEST NATIONAL LABORATORY
FERMILAB
US NAVY
VETERANS ADMINISTRATION

EDUCATIONAL INSTITUTIONS
USC
BRYN MAWR
TULANE
UNIVERSITY OF ARKANSAS
IDAHO STATE UNIVERSITY
UNIVERSITY OF DELAWARE
UNIVERSITY OF COLORADO
UNIVERSITY OF WYOMING
UNIVERSITY OF REDLANDS
LAWRENCE UNIVERSITY

We hope that Myron L Meters has helped your organization continue its fine work. Thanks from the Myron L Meters team and have a great 2014!

Categories : MyronLMeters.com Valued Customers

Ultrapen PT1 – Product Overview Video

Posted by 21 Apr, 2013

TweetLearn about the Myron L Company Ultrapen PT1. In this video, we will give an overview of the Ultrapen PT1 instrument and its functions. The Ultrapen PT1 package includes: – the PT1 Pocket Tester Pen with battery installed – Measurement Scoop – Pocket Clip – Holster – Lanyard – and Operating Instructions The Ultrapen PT1 […]

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Watch on YouTube: http://www.youtube.com/watch?v=KNFqCehYjbQ

Learn about the Myron L Company Ultrapen PT1.

In this video, we will give an overview of the Ultrapen PT1 instrument and its functions.

The Ultrapen PT1 package includes:

- the PT1 Pocket Tester Pen with battery installed
- Measurement Scoop
- Pocket Clip
- Holster
- Lanyard
- and Operating Instructions

The Ultrapen PT1 has 5 different modes of measurement. These include:

- Cond KCl mode, which measures Conductivity for potassium chloride solutions, the measurement is displayed as microsiemens (μS). This is the standard mode for most conductivity applications.

- TDS 442 mode, which measures Total Dissolved Solids for Natural Water solutions, the measurement is displayed as parts per million (ppm).

- TDS NaCl mode, which measures TDS for sodium chloride solutions, the measurement is displayed as ppm.

- SALT 442 mode, which measures Salinity for Natural Water solutions, the measurement is displayed as parts per thousand (ppt).

- SALT NaCl mode, which measures Salinity for sodium chloride solutions, the measurement is displayed as parts per thousand (ppt)

A few other specifications we’d like to highlight are the Durable, Fully Encapsulated waterproof Electronics with Automatic Temperature Compensation and Autoranging measurements. The instrument casing is made out of anodized aluminum, so it can withstand harsh environments.

- The PT1 has an Accuracy of ±1% of READING designed to give Reliable Repeatable Results.

-The PT1 also has a measuremante range of 1 – 9,999 for Conductivity, TDS, and Salinity. with a temperature range of 32 – 160 degrees F

With all of the different functions and durable design, this small pen can handle a variety of applications. Now that you are a bit more familiar with the PT1, we will demonstrate how to use its various functions.

All the functions of the PT1 are activated by pressing the button on the end.

If you press the button and release, it will turn on and prepare to take a reading in the last mode that you used.

The screen will display the software version, then the Measurement mode, then the red light will begin blinking rapidly, this is when you will need to submerge the pen to get the measurement. Wehn the light blinking slows, this is when the pen is measuring the solution. When the red light stays red, the measurement is complete and will display on the screen.

To switch modes, press and release the button to turn it on, then simply press and hold the button to cycle through the different menu options. As the options change, just release the button to select that menu option. The screen will ask you to ‘Push and Hold’ the button to confirm your choice. If there are sub-menu options (such as choosing the Solution Selection menu), then as you hold the button, it will continue to cycle through those sub-menu options. Again, you simply release the button to choose one. Then push and hold to confirm. the PT1 will show ‘SAVED’ on the display.

These are the different menu options:

- Calibration mode (shown as CAL)

- Solution selection mode (shown as SOL SEL)

- Factory calibration mode (shown as FAC CAL)

- Temperature selection mode (shown as C* F* temp)

- Escape mode for exiting the menu (shown as ESC)

To calibrate the Ultrapen PT1, attach the measurement scoop to the end of teh pen. Then rinse it three times with your calibtaion solution.

Start the calibration by pressing and releasing the button to turn it on, then simply press and hold the button to cycle through the different menu options. Release the button when ‘CAL’ is shown. When the red light starts blinking rapidly, pour the calibration soution into the scoop and wait. The pen will read teh solution and automatically adjust the calibration settings based on teh reading. This assumes you are using calibration solution that is not contaminted or expired and that your scoop and measuremetn cell is clean.

A quick tip when using theinstrument:

- When submerging the pen for measurements, make sure there are not bubbles trapped on the cell epectrodes by tapping it to knock them free.

If you have more questions about this instrument, please submit them in the reviews section on the product details page at MyronLMeters.com.

Categories : Videos

Calibrating the Myron L Ultrapen PT1 – MyronLMeters.com

Posted by 6 Nov, 2012

TweetThe PT1 is designed to be very reliable and requires only infrequent calibration. Myron L Meters recommends calibrating each measurement mode you use once monthly. However, you should check the calibration whenever measurements are not as expected. The PT1 is programmed for 2 calibration options: Wet Calibration or Factory Calibration. Wet calibration is most accurate. […]

Myron L Ultrapen PT1

Myron L Ultrapen PT1 – conductivity, TDS, salinity pen

The PT1 is designed to be very reliable and requires only infrequent calibration. Myron L Meters recommends calibrating each measurement mode you use once monthly. However, you should check the calibration whenever measurements are not as expected. The PT1 is programmed for 2 calibration options: Wet Calibration or Factory Calibration. Wet calibration is most accurate. But if a high quality standard KCl-1800 µS or 442-3000 ppm solution is not available, the PT1 can be returned to factory settings.

Wet Calibration
Use calibration solution specified for measurement mode: Use KCL- 1800 for Cond KCl; Use 442-3000 for tdS 442, SALt 442, tdS NaCl, and SALt NaCl. See Specifications table for 442 solution ppm NaCl equivalent value. Calibrating TDS simultaneously calibrates SALt for the same value and vice versa.
1. Pour calibration solution into a clean container.
2. Rinse the pen 3 times by submerging the cell in fresh calibration solution and swirling it around.
3. Remove pen from solution, then fill the container one more time.
4. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode. Ensure the PT1 is in the correct solution mode.
5. Immediately push and hold the push button. The display will scroll through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release the button when “CAL” displays.
6. Grasp the pen by its case with your fingers positioned between the
display and the pen cap to avoid sample contamination.
7. While the LED flashes rapidly, dip the pen in calibration solution so that the cell is completely submerged. If you do not submerge the cell in solution before the flashing slows, allow the pen to power off and start over.
8. While the LED flashes slowly, swirl the pen around to remove bubbles, keeping the cell submerged. Keep pen at least 1 inch (2½ cm) away from sides/bottom of container.
9. When the LED light stays on solid, remove the pen from the solution. “CAL SAVED” will display indicating a successful calibration.
Note: If an incorrect solution is used or the measurement is NOT within calibration limits for any other reason, “Error” displays alternately with “CLEAn CEL/CHEC SOL”. Check to make sure you are using the correct calibration solution. If the solution is correct, clean the cell by submerging the cell in a 1:1 solution of Lime-A-Way® and water for 5 minutes. Rinse the cell and start over.
10. Small bubbles trapped in the cell can give a false calibration. Measure the calibration solution again to verify correct calibration. If the reading is not within ±1% of the calibration solution value, repeat calibration.

Factory Calibration
If you do not have the proper calibration solution or wish to restore the pen to its original factory settings for any other reason, use the FAC CAL function to calibrate the PT1.
1. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode.
2. Immediately push and hold the push button. The display will scroll
through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release
the button when “FAC CAL” displays.
3. While the display scrolls through “PUSHnHLD” and “FAC CAL”, push and hold the push button until the display scrolls through “SAVEd” and “FAC CAL”, indicating the pen has been reset to its factory calibration.
4. Allow the pen to time out to turn power off.

STANDARD SOLUTIONS FOR CALIBRATION:
The ULTRAPEN™ PT1 uses the following solutions for wet calibration. Order MODEL#s: KCL-1800, 442-3000 (2027 ppm NaCl)

Categories : Uncategorized

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…
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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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