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Summary of Contents for Myron L POOLPRO PS9TK
- Page 1 ™ Operation Manual MODEL PS9TK 18 April 12...
- Page 3 ThE PS9 TiTRaTiOn KiT (wiTh bLuDOcK OPTiOn) cOMES wiTh EvERyThing yOu SEE hERE PLEaSE chEcK ThE cOnTEnTS OF yOuR KiT! ™ Model PS9 Cell Extender Model TKCE Foam-lined hard carry case M’PET 100µL fixed volume pipette Model FVMP-100 12 disposable pipette tips 2oz.
- Page 4 Instrument Illustration Reference pH/ORP Sensor Junction under (Replaceable) Glass pH Bulb Electrode pH Glass Electrode Conductivity Cell (Built-in Electrodes) Temperature pH/ORP Sensor Sensor Protective Cap Test Value or Titration Prompts or LSI Mode Units Of Measurement Parameter mS - millisiemens/cm Preprogrammed (millimhos/cm) variable...
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Page 5: Introduction
Thank you for selecting the feature-packed P ™, one of the Myron L Company’s latest in an increasing line of instruments utilizing advanced microprocessor-based circuitry and SMT manufacturing processes. This circuitry makes the instrument extremely accurate, reliable and very easy to use. -
Page 6: Features And Specifications
FEaTuRES and SPEciFicaTiOnS A. Features ORP-based FC Free Chlorine measurement; displays as ppm • concentration Alkalinity and Hardness Conductometric Titrations • Langelier Saturation Index (LSI) Titrations and Calculator • Superior resolution 4 digit LCD displays full 9999 µS/ppm • ± 1% of READINg / ±0.1% at Cond/MIN/SALT/TDS Accuracy of •... -
Page 7: Specification Chart
A reasonable service charge will be made for diagnosis or repairs due to normal wear, abuse or tampering. This warranty is limited to the repair or replacement of the only. The Myron L Company assumes no other responsibility or liability. E. P... - Page 8 PLEaSE nOTE: Because of our commitment to product improvement, the substance and style of this manual may change. When changes are made, the updated manual is posted for download in PDF format from the Myron L Website: www.myronl.com...
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Page 9: Table Of Contents
TabLE OF cOnTEnTS PS9TK Contents......... . . i Instrument Illustration . - Page 10 SOLUTION SELECTION......24 A. Why Solution Selection is Available ..24 B.
- Page 11 B. Titration Standard Solutions ....52 C. Titration Reagent Solutions ....53 D.
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Page 12: Rules Of Operation
iii. RuLES of OPERaTiOn A. Operation nOTE: The cell extender does not interfere with normal operation. Using the instrument is simple: • Individual or multiple parameter readings may be obtained by filling individual sensors or entire cell cup area. • Rinse the conductivity cell and/or pH/ORP sensor well with test solution 3 times and refill. -
Page 13: Cond, Min/Salt And Tds Keys
2. COND, MIN/SALT and TDS Keys These 3 keys are used with solution in the Conductivity Cell. Precautions: • While filling cell cup, ensure no air bubbles cling on the cell wall. • If the proper solution is not selected (KCl, NaCl, 442), refer to Why Solution Selection is Available, pg. -
Page 14: Ph And Orp/Free Chlorine Keys
After use, the pH/ORP sensor well must be refilled with Myron L Storage Solution, and the protective cap reinstalled securely (ref. -
Page 15: After Using The Pool Pro
B. Maintenance of the pH/ORP Sensor The sensor well must be kept wet with a saline solution. Before replacing the rubber cap, rinse and fill the sensor well with Myron L pH Sensor Storage Solution. If unavailable, you can use an almost saturated KCl solution, pH 4 buffer or a saturated solution of table salt and tap water (ref. -
Page 16: Pipette Instructions
nOTE: The accuracy of titration measurements Plunger Button is affected by your technique. Be careful when removing the cap of the cell extender to add reagents. Flicking the cap or popping it off can Plunger Rod cause solution to spill out of the cell extender. Always use a new pipette tip when changing solutions to avoid contamination. -
Page 17: T-Plunger Instructions
conductivity cell being careful not to touch the tip to the existing solution. Depress the top of the pipette to the SECOND STOP (all the way down) being careful to keep the tip over the cell. Release the plunger button and let it return to the REST position. -
Page 18: Total Dissolved Solids (Tds)
b. Hold When the display says to hold (“hOLd”): Hold the instrument steady in the horizontal position while instrument records “hOLd”: When “hOLd” measurement. Agitate and hold as many times displays, hold the PS9 as prompted. Allow the display to cycle through still with bottom of case all screens, e.g., “EdTa”, “agit”... - Page 19 Refill cell cup and cell extender with sample solution. Insert T-plunger into open cell extender until the “T” rests flush on the lip of the cell extender. This will cause fluid beyond what is required for titration to overflow the cell extender. Rotate the T-plunger from side to side, allowing the arms of the T-plunger to slide along the rim of the cell extender.
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Page 20: Measuring Hardness
PS9 as prompted, then pressing caL as prompted. An alkalinity value will display when the titration measurement is complete. Note the value for your records or press MS to store the value. You can begin another Alkalinity titration by pressing aLK. The PS9 will automatically power off after the period of inactivity defined in the AUTO OFF setting (ref. - Page 21 Carefully remove the T-plunger so as not to flick or spill remaining sample. Tap the T-plunger on the side of the cell extender to remove sample that may be stuck to the T-plunger. Press . “ca” alternating with “tdS” displays along with ES caL”...
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Page 22: Lsi Calculator Functions
cell, close the cell extender cap securely to prevent any solution from spilling out, then agitate and hold. Repeat as prompted. ES caL” will display. “P Press caL to advance to first titration prompt. “add” alternating with either “EdTa Lc” (Reagent H2) or “EdTa hc” (Reagent H3) will display;... -
Page 23: Measuring Lsi
All other values will display as default. You can adjust any or all of the values displayed to determine the effect of the change(s) on the LSI value. 1. Measuring LSI nOTE: The PS9 will automatically power off after the period of inactivity defined in the AUTO OFF setting (ref. -
Page 24: Measuring Ph
Refill both sensor well and cell cup with sample. Press Note value displayed. iMPORTanT: After use, fill pH/ORP sensor well with Myron L pH Sensor Storage Solution and replace protective cap. If Myron L pH Sensor Storage Solution is unavailable, you can... -
Page 25: Measuring Orp
of table salt and tap water (ref. Cleaning Sensors, 2. pH/ORP, pg. 48). Do not allow pH/ORP sensor to dry out. H. Measuring ORP The P features the ability to measure the activity of oxidizing or reducing chemicals in solution as ORP mV. The instrument also includes an innovative Free Chlorine Equivalent (FC ) feature (Measuring Free Chlorine Using FC... -
Page 26: Measuring Orp
Take reading. Press MS to store reading in memory, if desired. iMPORTanT: After use, fill pH/ORP sensor well with Myron L pH Sensor Storage Solution and replace protective cap. If Myron L pH Sensor Storage Solution is unavailable, you can use a strong KCl solution, a pH 4 buffer, or a saturated solution of table salt and tap water (ref. -
Page 27: Fc E Immersion Method
solution to flow into and out of the sensor well and cell cup for at least 10 seconds. Let sample flow continuously into conductivity cell with no aeration. Allow both the sensor well and cell cup to remain filled with sample. -
Page 28: Fc E Best Practices
Ignore measurements that are significantly different from the others. Ex: 3.20 ppm, 1.15 ppm, 3.10 ppm iMPORTanT: After use, fill pH/ORP sensor well with Myron L pH Sensor Storage Solution and replace protective cap. If Myron L pH Sensor Storage Solution is unavailable, you can use a strong KCl solution, a pH 4 buffer, or a saturated solution of table salt and tap water (ref. -
Page 29: Calibration Of Each Solution Type
C. Calibration of Each Solution Type There is a separate calibration for each of the 4 solution types. Note that calibration of a 442 solution does not affect the calibration of a NaCl solution. For example: Calibration (ref. Conductivity, MIN/SALT or TDS Calibration, pg. -
Page 30: Calibration
vii. caLibRaTiOn A. Calibration Intervals generally, calibration is recommended about once per month with Conductivity or TDS solutions. Calibration with pH solutions should be checked twice a month. Calibration of ORP is not necessary (ref. CALIBRATION INTERVALS TABLE under Calibration Steps below). B. -
Page 31: Calibration Limits
To bypass a calibration, simply press to accept the present value as-is. b. Leaving Calibration Pressing accepts calibration and exits CAL mode if there are no more steps. Calibration is complete when the “caL” icon goes out. Pressing any measurement key during calibration cancels changes not yet accepted and exits calibration mode. -
Page 32: Reloading Factory Calibration
standard’s value (7032 > 7000) or hold a key down to scroll rapidly through the reading. Press once to confirm new value and end the calibration sequence for this particular solution type. If another solution type is also to be measured, change solution type now and repeat this procedure. - Page 33 Ensure pH protective cap is secure to avoid contamination. Install the cell extender by pushing the base of the cell extender into the conductivity cell until it is fully seated. Rinse the conductivity cell cup and cell extender 3 times with Alkalinity Standard 100PPM.
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Page 34: Hardness Calibration
Using the pipette, add 100 µL of Reagent: A1, close the cell extender cap securely, then agitate and hold. Repeat as ES caL” will display. prompted. “P Press caL to advance to the next titration point. “add” alternating with “a1” displays; then “agit t2” alternating with “hOLd”... - Page 35 Refill cell cup and cell extender with Hardness Standard 200PPM. Insert T-plunger into open cell extender until the “T” rests flush on the lip of the cell extender. This will cause fluid beyond what is required for titration to overflow the cell extender. Rotate the T-plunger from side to side, allowing the arms of the T-plunger to slide along the rim of the cell extender.
- Page 36 reduces any bicarbonate alkalinity in the sample and prepares it for titration. After 120 seconds, “add” alternating with “h1 1” will display. (The “1” indicates the first addition of sodium hydroxide.) Then “agit” alternating with “hOLd” will display. Change the pipette tip. Using the pipette, add 100µL of Reagent H1 to the cell, close the cell extender cap securely to prevent any solution from spilling out, then agitate and hold.
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Page 37: Ph Calibration
and holding the PS9 as prompted, then pressing caL as prompted. A hardness value will display when the titration measurement is complete. Press caL. The “caL” icon will display. Adjust the displayed value to “200” using UP or DOWN key. The PS9 will not allow you to scroll up or down to “200”... - Page 38 sensor. If the pH reading is above 8 with pH 7 buffer solution, the sensor well needs additional rinsing or the pH sensor is defective and needs to be replaced. Press until the display reads “7.00”. nOTE: Attempted calibration of >1 pH point from factory calibration will cause “Fac”...
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Page 39: Orp Calibration
Press to accept 3rd point of calibration, which completes the Calibration procedure. Fill sensor well with Myron L Storage Solution and replace protective cap. 6. ORP Calibration ORP electrodes rarely give false readings without problems in the reference electrode. For this reason, and because calibration solutions for ORP are highly reactive and potentially hazardous, your P has an electronic ORP calibration. -
Page 40: Calibration Intervals
viii. caLibRaTiOn inTERvaLS There is no simple answer as to how often one should calibrate an instrument. The P is designed to not require frequent recalibration. The most common sources of error were eliminated in the design, and there are no mechanical adjustments. Still, to ensure specified accuracy, any instrument must be checked against chemical standards occasionally. -
Page 41: Ph And Orp/Free Chlorine Practices
D. pH and ORP/Free Chlorine Practices to Maintain Calibration Keep the sensor wet with Myron L Storage Solution. Rinse away caustic solutions immediately after use. ORP calibration solutions are caustic, and ± 5% is considered very accurate. -
Page 42: Clearing A Record/Memory Clear
(the temperature display alternates between temperature recorded and location number). Press to display time and date stamp. Press any measurement key to leave memory recall or allow to automatically turn off. C. Clearing a Record/Memory Clear After recalling a certain record location, press and HOLD clear that memory. -
Page 43: Time And Date
TiME and DaTE The Time and Date may easily be changed as you travel. A. Setting TIME Time is always displayed in 24 hour time. Example shown in Figure 11, 16:05 equals 4:05 PM. Press Press until the time is displayed (scrolling through stored readings, “Pc OFF”, and “cL aLL”... -
Page 44: January
Press Press repeatedly until the date is displayed (scrolling through stored readings, “Pc OFF”, “cL aLL” and time to the date, e.g., “01.25 12” (Figure 9), January 25, 2012). Press to initiate. “caL” will be displayed along with the YEAR (see Figure 10). Figure 10 Press to change the YEAR. -
Page 45: Date Format "Us & International (Int)
Figure 12 C. DATE FORMAT “US & International (Int)” Press Press repeatedly until the format is displayed (scrolling through stored readings, “Pc OFF”, “cL aLL”, time and date to date format). Press to change. Display will now indicate other format (see Figures 13 &... -
Page 46: Total Return To Factory Settings
Figure 16 Figure 15 Press to switch units. Press to accept unit preference for all temperature readings. nOTE: Tempco will still be shown in %/°C. Xii. TOTaL RETuRn to FacTORy SETTingS “Fac SEL” There may come a time when it would be desirable to quickly reset all the recorded calibration values in the instrument back to the factory settings. -
Page 47: Cell Check
Xiii. cELL chEcK The cell check verifies the cleanliness of the conductivity/MIN/ SALT/TDS sensor. In normal use the cell may become dirty or coated and require cleaning. If the display is showing “.00” when the cell cup is dry, the sensor is probably clean. No matter what a manufacturer claims, a sensor can and will become contaminated or coated and, therefore, require cleaning. - Page 48 Press to display the stored memory records. repeatedly until you pass the “cELL ch” location. Press The display will show “auto oFF” (see Figure 21). Figure 21 Press to initiate. “caL” will be displayed along with “15 SEc” or current Auto oFF value (see Figure 22). Figure 22 Press to change the amount of time (see...
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Page 49: Bludock™ Wireless Data Transfer Instructions
For a computer without Bluetooth® capability: If you don’t have the dongle that came with the BLUDOCK, one can be ordered separately from the Myron L Company. Order Model # BDDO. Plug in your dongle and install per manufacturer’s instructions. -
Page 50: Memory Stack Download
Figure 24 key. “Pc On” will be displayed (see Figure Then press the 25). Figure 25 nOTE: “Pc ini” may momentarily be displayed while initializing (see Figure 26). Figure 26 Add bluDock to your Bluetooth devices per your operating system procedure. ThE bLuDOcK DEvicE PaSSKEy iS 1234. -
Page 51: Care And Maintenance
A data transfer bar will appear while the data is being downloaded. Once downloaded, the data may be manipulated, printed or stored within the Myron L U2CI application, or the data may be exported to another more powerful spreadsheet, such as Excel ‡... -
Page 52: Ph/Orp Sensor Replacement
Open instrument carefully. Carefully detach battery from circuit board. Replace with 9 Volt alkaline battery. Replace bottom, ensuring the sealing gasket is installed in the groove of the top half of case. Re-install screws, tighten evenly and securely. nOTE: Because of nonvolatile EEPROM circuitry, all data stored in memory and all calibration settings are protected even during power loss or battery replacement. - Page 53 Leaving high pH (alkaline) solutions in contact with the pH sensor for long periods of time is harmful and will cause damage. Rinse such liquids from the pH/ORP sensor well and refill it with Myron L Storage Solution to extend the useful life of the sensor. If unavailable, you can use a saturated KCl solution, pH 4 buffer, or a saturated solution of table salt and tap water.
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Page 54: Troubleshooting
Xvii. TROubLEShOOTing chaRT Symptom Possible cause No display, even though Battery weak or not connected. measurement key pressed Inaccurate ph readings 1. pH calibration needed. Ref. pH Cal., pg. 33. 2. Cross-contamination from residual pH buffers or samples in sensor well. 3. - Page 55 5. Use fresh calibration solution. Be sure to use a new tip for each type of solution measured. Check the ORP sensor functioning. Take an ORP reading of Myron L pH/ORP Sensor Storage Solution (ref. pH Sensor Storage Solution, pg. 53). If the reading is outside the range of 350-400 mV, clean ONLY the platinum ORP electrode with Myron L ORP Conditioner solution-soaked cotton swab (ref.
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Page 56: Accessories
Xviii. accESSORiES nOTE: MSDSs are available on the Myron L website for all solutions: http://www.myronl.com/main/Material_Safety_DS_DL.htm A. Conductivity/TDS Standard Solutions Your P has been factory calibrated with the appropriate Myron L Company NIST traceable KCl, NaCl, and our own 442™ standard solutions. -
Page 57: Titration Reagent Solutions
Order EDTA-HC. D. pH Buffer Solutions pH buffers are available in pH values of 4, 7 and 10. Myron L Company buffer solutions are traceable to NIST certified pH references and are color-coded for instant identification. They are also mold inhibited and accurate to within ±... -
Page 58: Soft Protective Carry Cases
g. Soft Protective Carry Cases Padded Nylon carrying case features a belt clip for hands-free mobility. Two colors to choose from: Blue - Model #: UCC Desert Tan - Model #: UCCDT H. Hard Protective Carry Cases Large, foam-lined case without UMIII PS9 includes the 100 µL pipette, 12 disposable pipette tips, 3 buffers (pH 4, 7, and 10), pH/ORP sensor storage solution, ORP Conditioner solution, reagents A1, C1, H1, H2, H3, and standard solutions, KCI-7000, 442-3000, ALK-100 and HARD-... -
Page 59: Tempco Variation
method that ignores fill level, electrolysis, electrode characteristics, etc., and features a microprocessor to perform temperature compensation. In simpler instruments, conductivity values are usually assigned an average correction similar to that of KCl solutions for correction to 25°C. The correction to an equivalent KCl solution is a standard set by chemists that standardizes the measurements and allows calibration with precise KCl solutions. -
Page 60: A Chart Of Comparative Error
Using a 442 correction of 10 (degrees below 25) x 1.68% indicates the solution is reading 16.8% low. For correction, dividing by (.832) yields 1082 microsiemens as a compensated reading. A KCl correction of 10 (degrees below 25) x 1.9% indicates the solution is reading 19% low. -
Page 61: Conductivity Conversion To
(anions) in freshwater that the Myron L Company calls “natural water”. These are modeled in a mixture called “442™” which the Myron L Company markets for use as a calibration standard, as it does standard KCl and NaCl solutions. -
Page 62: When Does It Make A Lot Of Difference
C. When does it make a lot of difference? First, the accuracy of temperature compensation to 25°C determines the accuracy of any TDS conversion. Assume we have industrial process water to be pretreated by RO. Assume it is 45°C and reads 1500 µS uncompensated. -
Page 63: Ph And Orp/Free Chlorine
XXii. ph and ORP/FREE chLORinE A. pH 1. pH as an Indicator pH is the measurement of Acidity or Alkalinity of an aqueous solution. It is also stated as the Hydrogen Ion activity of a solution. pH measures the effective, not the total, acidity of a solution. A 4% solution of acetic acid (pH 4, vinegar) can be quite palatable, but a 4% solution of sulfuric acid (pH 0) is a violent poison. - Page 64 Electrode wire KCl solution Figure 30 Figure 28 4. The Myron L Integral pH Sensor The sensor in the P (see Figure 29) is a single construction in an easily replaceable package. The sensor body holds an oversize solution supply for long life. The reference junction “wick” is porous to provide a very stable, low permeable interface, and is located under the glass pH sensing electrode.
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Page 65: Orp/Oxidation-Reduction Potential/Redox
That charge is measured relative to the solution, so the solution “ground” voltage comes from a reference junction - same as the pH sensor uses. 4. The Myron L ORP Sensor Figure 29, pg. 60, shows the platinum button in a glass sleeve. The... -
Page 66: Free Chlorine
The PS9 is the first handheld device to detect free chlorine directly, by measuring ORP. The ORP value is converted to a concentration reading (ppm) using a conversion table developed by Myron L Company through a series of experiments that precisely controlled chlorine levels and excluded interferants. -
Page 67: Alkalinity, Hardness And Lsi
The Myron L Company PS9 avoids these pitfalls. The chemistry of the test sample is left unchanged from the source water. It accounts for the effect of pH on chlorine effectiveness by including pH in its calculation. -
Page 68: Hardness Units
The hardness unit conversion is based on the following equivalency: 17.1 ppm (mg/L) = 1 grain XXiv. SOFTwaRE vERSiOn Contact the Myron L Company to see if a software upgrade is available. Press any parameter key. Press key until three numbers are displayed as shown in Figure 30. -
Page 69: Glossary
(in familiar ppm). For more information see FCE™: Groundbreaking Measurement of Free Chlorine Disinfecting Power in a Hand-Held Instrument on the Myron L Company website. Logarithm An arithmetic function. The inverse of an exponential function. See pH Units, pg. 59. - Page 71 HigH Performance features: • • • Accuracy of ±1% of Automatic Temperature Waterproof READING Compensation • Powered by 1 N Type ±.2% at Calibration Point • Autoranging Battery • Reliable Repeatable (included) • Durable, Fully Results Encapsulated • KCl, NaCl and 442™ Electronics Natural Water Modes...
- Page 72 MyROn L cOMPany 2450 impala Drive carlsbad, ca 92010-7226 Tel: +1-760-438-2021 Fax: +1-760-931-9189 E-Mail: info@myronl.com techquestions@myronl.com www.myronl.com Made in uSa PS9OM 18aP12...
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