LaMotte 2020we Manual
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LaMotte 2020we Manual

Turbidimeter
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2020
we/wi
1970-EPA
1970-ISO

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Summary of Contents for LaMotte 2020we

  • Page 1 2020 we/wi 1970-EPA 1970-ISO...

  • Page 3: Table Of Contents

    CONTENTS GENERAL INFORMATION  Packaging and Delivery  General Precautions  Safety Precautions  Limits of Liability  Specifi cations  Statistical & Technical Defi nitions  Contents and Accessories  EPA Compliance  ISO Compliance  CE Compliance  IP67 Compliance ...
  • Page 4  Dilution Procedure  Preparation of Turbidity-Free Water  Testing Tips TROUBLESHOOTING GUIDE  Troubleshooting  Stray Light GENERAL OPERATING INFORMATION  Overview  The Keypad  The Display and Menus  Negative Results  Tubes and Chambers MAINTENANCE  Cleaning ...

  • Page 5: General Information  Packaging And Delivery

    * in the instruction manual. To view or print a Material Safety Data Sheet (MSDS) for these reagents go to www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or FAX. Additional information for all LaMotte reagents is available in the United States, Canada, Puerto Rico, and the US Virgin Islands from Chem-Tel by calling 1-800-255-3924.

  • Page 6: Limits Of Liability

     LIMITS OF LIABILITY Under no circumstances shall LaMotte Company be liable for loss of life, property, profi ts, or other damages incurred through the use or misuse of their products.  SPECIFICATIONS - 2020we/wi Instrument Type: Nephelometer Standard: EPA 180.1, 2020we; ISO 7027, 2020wi...

  • Page 7: Statistical & Technical Defi Nitions

    Operation 0–90 % RH, non-condensing Humidity Range: Auto Shut-off: 5, 10, 30 min, disabled Waterproof: IP67 with USB port plug in place. Power Source USB wall adapter, USB computer connection or † Lithium ion rechargeable battery 2200 mAH, 3.7V Battery: Charge Life: Approximately 380 tests with backlight on to 1000 tests with backlight off.
  • Page 8 2 or 3 days. Reproducibility: Reproducibility is the between-run precision. Detection Limit (DL): The detection limit (DL) for the 2020we/wi is defi ned as the minimum value or concentration that can be determined by the meter, which is greater than zero, independent of matrix, glassware, and other sample handling sources of error.

  • Page 9: Contents And Accessories

     CONTENTS & ACCESSORIES 2020we Kit 2020wi Kit EPA Version ISO Version Code 1970-EPA Code 1970-ISO Contents Code Code 0 NTU Standard, 60 mL 1480 1480 1 NTU/FNU Standard, 60 mL 1450 1453 10 NTU/FNU Standard, 60 mL 1451 1454...

  • Page 10: Epa Compliance

     EPA COMPLIANCE The 2020we meter meets or exceeds EPA design specifi cations for NPDWR and NPDES turbidity monitoring programs as specifi ed by the USEPA method 180.1.  ISO Compliance This 2020wi meter meets or exceeds ISO design criteria for quantitative methods of turbidity using optical turbidimeters as specifi...

  • Page 11: Computer Connection

    USB cable (USB mini B connector) into the meter and the larger end of the USB cable (USB Type A connector) into a USB port on a computer. The 2020we/ wi will send the following data: test name, wavelength, concentration, transmittance, absorbance, sample, blank, time of test, and date of test.
  • Page 12 LaMotte Company. Battery replacement must be performed at a LaMotte authorized repair facility. The water resistant housing of this meter should not be opened by the user. Contact LaMotte Company by phone (1-800-344-3100) or email (tech@lamotte.com) for a return...

  • Page 13: Turbidity  What Is Turbidity

    0.1 NTU. The trend has been to check the calibration of on-line turbidimeters with hand-held fi eld units. The optical design and low detection limit of the 2020we/wi allows very accurate readings for such calibrations.
  • Page 14 LaMotte Company approved AMCO standards labeled for use with the 2020we/wi can also be used with the formazin calibration. Stablcal standards below 50 NTU should not be used to calibrate the ®...

  • Page 15: Turbidity Units

     TURBIDITY UNITS Traditionally, turbidimeters designed for use in the United State were made to the specifi cations of EPA Method 180.1. This method defi ned the NTU, nephelometric turbidity unit, as a unit to measure turbidity in the range of 0 – 40 NTU using a nephelometer. According to the EPA a nephelometer was a turbidimeter that measured turbidity with a 90°...

  • Page 16: Taking Turbidity Water Samples

    Convention The 2020we and 2020wi each use two turbidity units. The 2020we reports the result as NTU when the 90° detector is used and AU when the 180° detector is used. The 2020wi reports the result as FNU when the 90°...

  • Page 17: Sample Dilution Techniques

     SAMPLE DILUTION TECHNIQUES If a test result is out of the range of the meter, it must be diluted. The test should then be repeated on the diluted sample. The following table gives quick reference guidelines for dilutions of various proportions. Amount of Sample Deionized Water to Bring Multiplication Factor Final Volume to 10 mL...

  • Page 18: Averaging

    To change the setting: Main Menu 1. Press and briefl y hold Measure to turn the meter on. The LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 19 Averaging Menu 5. Press to scroll Disabled to the desired option. 2 Measurements 5 Measurements 10 Measurements 12:00:00 001/500 Options Menu 6. Press to save the ENTER selection. The screen will Averaging display Storing... for about Turbidity Options 1 second and return to the Set Clock Options Menu.

  • Page 20: Turbidity Options

    NTU will be used in this example. To change the settings: Selecting Turbidity Units Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will appear.
  • Page 21 Turbidity Units. ASBC 12:00:00 001/500 Available units are: NTU (Nephelometric Turbidity Units)( 2020we only) FNU (Formazin Nephelometric Units) (2020wi only) ASBC (American Society of Brewing Chemists) EBC (European Brewery Convention) NOTE: The meter will automatically switch to the attenuation mode above 600 NTU or FNU.

  • Page 22: Selecting A Turbidity Calibration Curve

    Selecting a Turbidity Calibration Curve Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will appear. Run PC Link...
  • Page 23 12:00:00 001/500 NOTE: Stablcal® standards below 50 NTU should not be used to calibrate the 2020we/wi. The diluent has a different refractive index than traditional formazin standards and will affect the results. Turbidity Options 8. Press to save the ENTER selection.

  • Page 24: Setting Clock

     SETTING THE CLOCK Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 25 Options Menu 5. Press to select the fi nal ENTER character. The time and date Averaging will be saved and the screen Turbidity Options will return to the Options Set Clock Menu. Set PWR Save 12:00:00 001/500...

  • Page 26: Setting Power Save

    5 minutes. To change the setting: Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 27 Auto Shutoff 5. Press to select PWR ENTER Save. Disable 5 Minutes 15 Minutes 30 Minutes 12:00:00 001/500 Auto Shutoff 6. Press to scroll to desired setting. Disable 5 Minutes 15 Minutes 30 Minutes 12:00:00 001/500 Options Menu 7. Press to save the ENTER selection.

  • Page 28: Setting Backlight Time

    USB/Wall Charger is not being used. Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 29 Options Menu 4. Press to scroll to Set Backlight Time. Turbidity Options Set Clock Set PWR Save Set Backlight Time 12:00:00 001/500 Backlight Time 5. Press to select Set ENTER Button Control Backlight Time. 10 Seconds 20 Seconds 30 Seconds 12:00:00 001/500 Backlight Time...

  • Page 30: Factory Reset

    Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 31 Options Menu 6. Press to complete the ENTER Done Factory Reset. The screen will momentarily display Writing. The screen will display Done and return to the Options Menu. To retain the current <Enter> Continue user level calibration settings, 12:00:00 001/500 press to abort the EXIT...

  • Page 32: Selecting Language

     SELECTING A LANGUAGE There are seven languages available in the 2020we/wi: English, Spanish, French, Portuguese, Italian, Chinese, and Japanese (Kana). Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will...
  • Page 33 Select Language 6. Press to scroll to desired language. English Spanish French Portuguese 12:00:00 001/500 Options Menu 7. Press to select desired ENTER language. The screen Set PWR Save aging will momentarily display, Set Backlight Time Storing...for about 1 second Factory Reset and return to the Options Select Language...

  • Page 34: Data Logging

    500+ when the data logger has exceeded 500 points and the data points are being overwritten. Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 35 Record Number 1 5. Press to scroll Turbidity - WB (F) through the data points in the log. 95.4 NTU 12:26:44 PM 08-03-2010 12:00:00 001/500 Logging 6. Press to return to the EXIT Logging menu. Press Display Test Log to scroll to disable Enable Logging the logging options or erase Disable Logging...

  • Page 36: Calibration & Analysis  Calibration

    Turbidity Calibration Procedure The default units are NTU and FNU and the default calibration curve is formazin as indicated by (F) in the Menu bar. A 2020we, which uses NTU, will be used in the following examples. For the most accurate results, a user calibration should be performed.

  • Page 37: Turbidity Calibration Procedure

    It is recommended that the meter be calibrated daily. Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 38 5. Rinse a clean tube (0290) three times with the blank. If samples are expected to read below 1 NTU the meter should be blanked with a 0 NTU Primary Standard or prepared turbidity-free (<0.1 NTU) water. For the most accurate results, use the same tube for the blank and the sample.
  • Page 39 Turbidity WB (F) 9. Press to scan the blank. ENTER The screen will display Blank Done for about 1 second and then return to the Turbidity - Scan Blank With Blank Menu. Scan Sample 12:00:00 001/500 10. Rinse a clean tube (0290), or the same tube, three times with the standard.
  • Page 40 Turbidity WB (F) 14. Press to scan the ENTER 0.99 standard. The screen will display Reading for about 1 second. The result will appear Scan Blank on the screen. Scan Sample 12:00:00 001/500 Turbidity WB (F) 15. Press to scroll to 0.99 Calibrate.

  • Page 41: Analysis Without Blanking Procedure

    10 NTU. The meter should always be blanked before reading samples below 10 NTU. Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 42 Turbidity NB (F) 3. Press to select ENTER Turbidity - No Blank. Scan Blank Scan Sample 12:00:00 001/500 4. Rinse a clean tube (0290) three times with the sample. 5. Fill the tube to the fi ll line with the sample. Pour the sample down the inside of the tube to avoid creating bubbles.

  • Page 43: Analysis With Blanking Procedure

    10 NTU. The meter should always be blanked before reading samples below 10 NTU. Main Menu 1. Press and briefl y hold to turn the meter on. The Measure LaMotte logo screen will Data Logging appear for about 3 seconds Options and the Main Menu will Run PC Link appear.
  • Page 44 Turbidity WB (F) 4. Press to select ENTER Turbidity - With Blank. Scan Blank Scan Sample 12:00:00 001/500 5. Rinse a clean tube (0290) three times with the blank. If samples are expected to read below 1 NTU the meter should be blanked with a 0 NTU Primary Standard or prepared turbidity-free (<0.1...
  • Page 45 8. Open the meter lid. Insert the tube into the chamber. Align the index line on the tube with the index arrow on the meter. Close the lid. Turbidity WB (F) 9. Press to scan the blank. ENTER The screen will display Blank Done for about 1 second and then return to the Turbidity - Scan Blank...
  • Page 46 13. Open the meter lid. Insert the tube into the chamber. Align the index line on the tube with the index arrow on the meter. Close the lid. Turbidity WB (F) 14. Press to scan the ENTER 0.99 standard. The screen will display Reading for about 1 second.
  • Page 47 0.00 NTU or 0.02 NTU. For design simplicity the 2020we/wi uses the term turbidity-free water and the value of 0.00 NTU.  PREPARATION OF TURBIDITY-FREE WATER A 0 NTU/FNU Standard (Code 1480) is included with the meter. An accessory package (Code 4185) is available for preparing turbidity-free water for blanking the meter and dilution of high turbidity samples.
  • Page 48 3. Remove the fi lter from the syringe. Remove the plunger from the barrel. (This step is required to prevent rupturing the fi lter by the vacuum that would be created when the plunger is removed.) 4. Replace the fi lter and repeat step 2 for a second rinse of the syringe and storage container.
  • Page 49 12. Observe shelf life recommendations for turbidity standards. 13. Do not use silicone oil on tubes when testing turbidity with the 2020we/wi. 14. When testing at low concentrations use the same tube for the blank and the sample.
  • Page 50  STRAY LIGHT The accuracy of readings on the 2020we/wi should not be affected by stray light. Make sure that the sample compartment lid is always fully closed when taking readings. The backlight will interfere with turbidity readings. The meter will temporarily disable the backlight while turbidity...
  • Page 51 A USB port on the back of the meter allows an interface of the meter with a Windows-based computer for real-time data acquisition and data storage using a PC. The 2020we/wi may be interfaced with any Windows-based computer by using the LaMotte SMARTLink 3 Program.
  • Page 52  THE DISPLAY & MENUS The display allows menu selections to be viewed and selected. These selections instruct the 2020we/wi to perform specifi c tasks. The menus are viewed in the display using two general formats that are followed from one menu to the next. Each menu is a list of choices or selections.
  • Page 53 In the second format the menu choice window takes advantage of the graphical capabilities of the display. Large format graphic information, such as test results or error messages or the LaMotte logo is displayed. The top two lines of the display are used to display information in a large, easy to read format.
  • Page 54 For this reason, the 2020we/wi displays negative numbers for turbidity.  TUBES AND CHAMBERS The 2020we/wi uses one type of tube (Code 0290). There is no need for a special turbidity tube. The handling of the tubes is of utmost importance. Tubes must be clean and free from lint, fi...
  • Page 55 Should it be necessary to return the meter for repair or servicing, pack the meter carefully in a suitable container with adequate packing material. A return authorization number must be obtained from LaMotte Company by calling 800-344-3100 (US only) or 410-778-3100, faxing 410-778-6394, or emailing tech@lamotte.com.
  • Page 56 including phone and FAX numbers to the shipping carton. This information will enable the service department to make the required repairs more effi ciently.  METER DISPOSAL Waste Electrical and Electronic Equipment (WEEE) Natural resources were used in the production of this equipment. This equipment may contain materials that are hazardous to health and the environment.
  • Page 60 802 Washington Ave • Chestertown • Maryland • 21620 • USA 410-778-3100 • 800-344-3100 www.lamotte.com 1970-MN • 02.01.12...

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2020wi

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