Myron L ULTRAMETER II 6P Operation Manual
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Myron L ULTRAMETER II 6P Operation Manual

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ULTRAMETER
™
Operation
Manual
MODELS 6P & 4P
11 Nov 08

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Summary of Contents for Myron L ULTRAMETER II 6P

  • Page 1 ULTRAMETER ™ Operation Manual MODELS 6P & 4P 11 Nov 08...
  • Page 3 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 Preprogrammed variable conductivity/ TDS ratios USER mode for programming special temperature compensation factor and °C conductivity/TDS RATIO...

  • Page 5: Introduction

    INTRODUCTION Thank you for selecting the feature-packed Ultrameter II™, 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 • Superior resolution 4 digit LCD displays full 9999 µS/ppm. • Accuracy of BETTER than ± 1% of reading in a handheld instrument. • All electrodes are internal for maximum protection. • Improved 4 electrode sensor technology. •...

  • Page 7: Specification Chart

    Cond/TDS Ratio Factor D. Warranty/Service The Myron L Ultrameter II, excluding the pH/ORP sensor (6P), has a Two (2) Year Limited Warranty. The pH/ORP sensor (6P) has a Six (6) Month Limited Warranty for materials and workmanship. If an instrument fails to operate properly, see Troubleshooting Chart, pg.

  • Page 8: Table Of Contents

    TABLE OF CONTENTS Instrument Illustration ..........i INTRODUCTION .
  • Page 9 C. Calibration Procedures ......15 1. Conductivity or TDS Calibration ..15 2.
  • Page 10 D. Soft Protective Carry Cases ....37 E. Hard Protective Carry Cases ....37 F.

  • Page 11: Rules Of Operation

    III. RULES of OPERATION A. 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 or pH/ORP sensor (6P) well with test solution 3 times and refill.

  • Page 12: Ph And Orp Keys (6P)

    After use, the pH/ORP sensor well must be refilled with Myron L Storage Solution, and the protective cap reinstalled securely (ref. Maintenance of the pH/ORP Sensor, pg. 9 and Cleaning Sensors, 2. pH/ORP, pg. 32).

  • Page 13: Up Or Down Keys

    B. Maintenance of the pH/ORP Sensor (6P) The sensor well must be kept wet with a solution. Before replacing the rubber cap, rinse and fill the sensor well with Myron L pH Storage Solution. If unavailable, use an almost saturated KCl solution, pH 4 buffer or a saturated solution of table salt and tap water (ref.

  • Page 14: Measuring Resistivity

    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, use a strong KCl solution, a pH 4 buffer, or a saturated solution of table salt and tap water (ref.

  • Page 15: Solution Selection

    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, use a strong KCl solution, a pH 4 buffer, or a saturated solution of table salt and tap water (ref.

  • Page 16: Application Of User Solution Type

    you wish to change the solution type. NaCl Press and hold User for 3 seconds to make “SEL” appear (see Figure 1). For demonstration Figure 1 purposes, all 4 solution types are shown simultaneously. Use the key to select type of solution desired (ref.

  • Page 17: Disabling Temperature Compensation

    2. Disabling Temperature Compensation Select USER mode, see Procedure to Select a Solution, pg. 11. With “USER” selected, press . If the display does not show .00%/°C, hold long enough to bring the tempco to .00%/°C (see Figure 3). Press twice (3 times if in TDS mode).

  • Page 18: 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, pg. 19). B. Rules for Calibration of the Ultrameter II 1.

  • Page 19: Calibration Limits

    measurement key cancels changes not yet accepted and exits calibration mode. Leaving pH after the 2nd buffer results in the same gain being entered in place of the 3rd buffer. 2. Calibration Limits There are calibration limits. A nominal “FAC” value is an ideal value stored by the factory.

  • Page 20: Resistivity Calibration

    Rinse conductivity cell three times with your standard. Refill conductivity cell with same standard. Press , then press twice in COND/three times in TDS. The “CAL” icon will appear on the display. Press to step the displayed value toward the standard’s value or hold a key down to scroll rapidly through the reading.

  • Page 21: Ph Calibration (6P)

    5. pH Calibration (6P) Important: Always “zero” your Ultrameter II with a pH 7 buffer solution before adjusting the gain with acid or base buffers, i.e., 4 and/or 10, etc. a. pH Zero Calibration (6P) Rinse sensor well 3 times with 7 buffer solution. Refill both sensor wells with 7 buffer solution.
  • Page 22 reduce your variation from factory setting by pressing Press to accept the new value. The pH Zero Calibration is now complete. You may continue with pH Gain Calibration or exit by pressing any measurement key. b. pH Gain Calibration (6P) Important: Always calibrate or verify your Ultrameter II with a pH 7 buffer solution before adjusting the gain with acid or base buffers, i.e., 4 and/or 10, etc.

  • Page 23: Orp Calibration (6P)

    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 (6P) 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 Ultrameter II has an electronic ORP calibration.

  • Page 24: Calibration Tracking Records

    D. pH and ORP Practices to Maintain Calibration (6P) 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 25: Memory

    MEMORY This feature allows up to 100 readings with their temperatures to be stored simultaneously for later recall. At the same time, the TIME and DATE are also recorded. To download the memory to a computer, (ref. uDock™ IR Data Port, pg. 30). MEMORY A.

  • Page 26: Time And Date

    Press and scroll to location #3. Press and HOLD to clear old record #3. Fill pH/ORP sensor well with sample. Press to measure sample and press to store reading in location #3. The next memory stored will go into location #8. To clear all records: After MEMORY pressing...

  • Page 27: Setting Date

    Press the to change the time. Press to accept the change (new time). B. Setting DATE Example shown in Figure 12, is in US format i.e. mo/dy/yr. NOTE: The default format is US. Date format may be changed (ref. Date Format “US and International (Int)”, pg.

  • Page 28: Date Format "Us & International (Int)

    Press the to change the day. Press to accept the change (new day) Figure 15 (see Figure 15). C. DATE FORMAT “US & International (Int)” Press Press repeatedly until the format is displayed (stored ALL, time, date, date format). readings, PC OFF, CL Press to change.

  • Page 29: Total Return To Factory Settings

    format location. The display will show a “C” or “F” (see Figures 18 and 19). Figure 18 Figure 19 Press to switch units. Press to accept unit preference for all temperature readings. NOTE: Tempco will still be shown in %/°C . XII.

  • Page 30: Cell Check

    XIII. CELL CHECK The cell check verifies the cleanliness of the conductivity/TDS/resistivity 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. However, when testing high purity water in resistivity (RES) mode improved accuracy may be desired.

  • Page 31: User Mode Calibration Linc™ Function

    Press to display the stored memory records. Press repeatedly until you pass the CELL ch location. The display will show “Auto oFF” (see Figure 24). to initiate. CAL Press will be displayed along with the “15 SEC” (see Figure 25). Press Figure 25 change the time (see...

  • Page 32: Setting User Mode Calibration "Linc

    Verify/Set the calibration linc. (See below – Setting User Mode Calibration Linc). B. Setting User Mode Calibration “Linc” The linc function sets or “links” the calibration gain factor of a Standard Solution to the User solution mode. Once set, the “linc” will stay intact with future calibrations unless the linc has been canceled.

  • Page 33: Canceling User Mode Calibration "Linc

    Press key to accept the setting. Pressing any of the measurement keys will exit without changing the setting. User mode “linc” is now complete. The User mode will now use the calibration gain constant used for the calibration of the Standard Solution as outlined above.

  • Page 34: Udock™ Ir Data Port

    IR DATA PORT INSTRUCTIONS Requires Myron L uDock™ accessory package, Model # U2CIP. The Myron L uDock is powered via the USB port, requiring no external power source. The uDock application will operate on Windows 2000 & XP*, and Macintosh OS9.2 & OSX** based computer systems.
  • Page 35 Once downloaded, the data may be manipulated, printed or stored within the Myron L uDock application, or the data may be exported to another more powerful spreadsheet † such as Excel*. † Please Note: Although the Myron L Company has performed extensive testing, we can not guarantee compatibility of all applications and formats.

  • Page 36: Care And Maintenance

    XVII. CARE and MAINTENANCE Ultrameter IIs should be rinsed with clean water after use. Solvents should be avoided. Shock damage from a fall may cause instrument failure. A. Temperature Extremes Solutions in excess of 71°C/160°F should not be placed in the cell cup area;...
  • Page 37 Leaving high pH (alkaline) solutions in contact with the pH sensor for long periods of time is harmful and will cause damage. Rinsing such liquids from the pH/ORP sensor well and refilling it with Myron L Storage Solution, a saturated KCl solution, pH 4 buffer, or a saturated solution of table salt and tap water, will extend the useful life.

  • Page 38: Troubleshooting

    XVIII. TROUBLESHOOTING CHART Symptom Possible Cause No display, even though Battery weak or not connected. measurement key pressed Inaccurate pH readings 1. pH calibration needed. (6P) Ref. pH Cal., pg. 17. 2. Cross-contamination from residual pH buffers or samples in sensor well.
  • Page 39 Corrective Action Check connections or replace battery. Ref. Battery Replacement, pg. 32. 1. Recalibrate instrument. 2. Thoroughly rinse sensor well. 3. Recalibrate using fresh buffers. Ref. pH Buffer Solutions, pg. 36. Replace pH/ORP sensor. Ref. Replacement pH/ORP Sensor, pg. 37. Clean and rejuvenate sensor (ref.

  • Page 40: Accessories

    14.0 mS is the recommended standard. Order NACL-14.0 B. pH Buffer Solutions (6P) 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 41: Soft Protective Carry Cases

    D. 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 E. Hard Protective Carry Cases Large case with 2 oz. bottles of calibration standard solutions (KCl-7000, 442-3000, 4, 7, &...

  • Page 42: An Example

    varies with concentration and temperature in a non-linear fashion. Other solutions have more variation still. The Ultrameter II uses corrections that change with concentration and temperature instead of single average values. See Chart 1. 2.500% 2.400% 2.300% 2.200% 2.100% % / °C 2.000% 1.900% 1.800%...

  • Page 43: A Chart Of Comparative Error

    D. A Chart of Comparative Error In the range of 1000 µS, the error using KCl on a solution that should be compensated as NaCl or as 442, is illustrated in the graph below. 442 error with KCl tempco NaCl error with KCl tempco (1)% Temperature (2)%...

  • Page 44: Total Dissolved Solids (Tds)

    (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 45: When Does It Make A Lot Of Difference

    readings for a specific solution. That value remains a constant for all measurements, and should be reset for different dilutions or temperatures. 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.

  • Page 46: Finding The Tempco Of An Unknown

    over this change of 10°C. The solution is then said to have a tempco of 2.2 %/°C. Tempco always varies among solutions because it is dependent on their individual ionization activity, temperature and concentration. This is why the Ultrameter II features mathematically generated models for known salt characteristics that also vary with concentration and temperature.

  • Page 47: Ph And Orp (6P)

    XXIII. pH and ORP (6P) A. pH (6P) 1. pH as an Indicator (6P) 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.
  • Page 48 Electrode wire in a layer, obstructing contact with KCl solution Figure 33 test solutions. See pH/ORP, pg. 43. 4. The Myron L Integral pH Sensor (6P) The sensor in the Ultrameter II (see Figure 34) is a single ions Glass...

  • Page 49: Orp/Oxidation-Reduction Potential/Redox (6P)

    “ground” voltage comes from a reference junction - same as the pH sensor uses. 4. The Myron L ORP Sensor (6P) Figure 34, pg. 44, shows the platinum button in a glass sleeve. The same reference is used for both the pH and the ORP sensors. Both pH and ORP will indicate 0 for a neutral solution.

  • Page 50: Software Version

    It can be cleaned off with detergent or acid, as with the pH glass. XXIV. SOFTWARE VERSION Contact the Myron L Company to see if a software upgrade is available. Press key. Press key until three numbers are displayed as shown in Figure 35.

  • Page 51: Glossary

    XXV. GLOSSARY Anions Negatively charged ions. See Solution Characteristics, pg. 40. Algorithm A procedure for solving a mathematical problem. See Temperature Compensation and TDS Derivation, pg. 41. Logarithm An arithmetic function. See pH Units, pg. 43. Oxidation-Reduction Potential or REDOX, See ORP/ Oxidation-Reduction Potential/REDOX, pg.

  • Page 52: Addendum

    XXVI. ADDENDUM...

  • Page 53: Notes

    XXVII. NOTES...
  • Page 56 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 UMIIOM 11NO08...

This manual is also suitable for:

Ultrameter ii 4p6pfce & 4pUltrameter ii 6pfc

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