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  5. User Instruction

LaMotte 2020e User Instruction

Manual is about: turbidity meter

Summary of 2020e

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    2020e • code 1979-epa 2020i • code 1979-iso version 1.5 • code 1979-mn • 12-07 e/i.

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    Warning! This set contains chemicals that may be harmful if misused. Read cautions on individual containers carefully. Not to be used by children except under adult supervision.

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    Contents introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 turbidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 what is turbidity? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 how is turbidity measured?. . . . . . . . . . . . . . . . . ....

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    Computer connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 battery operation . . . . . . . . . . . . . . . . . . . . . . . . 37 replacing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 ...

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    Introduction turbidity what is turbidity? Turbidity is an aggregate property of the solution, water in most cases. Turbidity is not specific to the types of particles in the water. They could be suspended or colloidal matter and they can be inorganic, organic or biological. At high concentrations tu...

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    Compared with the intensity passing through a turbidity-free sample at 180° from the light source. This method is good for highly turbid samples. The most common instrument for measuring scatter light in a water sample is a nephelometer. A nephelometer measures light scattered at 90° to the light be...

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    All dilutions are based on a final volume of 10 ml so several dilutions will require small volumes of the water sample. Graduated pipets should be used for all dilutions. If volumetric glassware is not available, dilutions can be made with the colorimeter tube. Fill the tube to the 10 ml line with t...

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    2. Scroll down and then press *iok to select options. M a i n m e n u m e a s u r e d a t a l o g g i n g * o p t i o n s 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 3. Scroll down and then press *iok to select turbidity. O p t i o n s a v e r a g i n g * t u r b i d i t y d a t e / t i m e l a n g u a g e 1 6 ...

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    Selecting a turbidity calibration curve 1. Press on to turn the meter on. 1 . 3 2. Scroll down and then press *iok to select options. M a i n m e n u m e a s u r e d a t a l o g g i n g * o p t i o n s 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 3. Scroll down and then press *iok to select turbidity. O p t i o ...

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    The japan standard calibration mode should be used only with japanese polystyrene standards (0–100 ntu). Note: stablcal ® standards below 50 ntu should not be used to calibrate the 2020. The diluent has a different refractive index than traditional formazin standards and will affect the results. 6. ...

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    4. Scroll down and then press *iok to select an averaging option. Available options are: disabled , 2 measurements, 5 measurements , 10 measurements . Note: the * is displayed next to the current setting. A v e r a g i n g d i s a b l e d * 2 m e a s u r e m e n t s 5 m e a s u r e m e n t s 1 0 m e...

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    4. Press *iok to select set date or scroll down and then press *iok to select set time or date format. D a t e / t i m e * s e t d a t e s e t t i m e d a t e f o r m a t 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 5. When setting the time or the date, use the ˆ or ‡ to change the highlighted number on the disp...

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    Selecting a language the default setting is english. To change the setting: 1. Press on to turn the meter on. 1 . 3 2. Scroll down and then press *iok to select options. M a i n m e n u m e a s u r e d a t a l o g g i n g * options 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 3. Scroll down and then press *iok t...

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    Setting auto shutdown the power saving auto shutdown feature will turn the meter off when a button has not been pushed for a set amount of time. The default setting is disabled. To change the setting: 1. Press on to turn the meter on. 1 . 3 2. Scroll down and then press *iok to select options. M a i...

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    Data logging the default setting for the data logger is start (on). The meter will log the last 4004 data points. 1. Press on to turn the meter on. 1 . 3 2. Scroll down and press *iok to select data logging. M a i n m e n u m e a s u r e * d a t a l o g g i n g o p t i o n s 1 6 : 0 2 : 1 9 0 1 / 0 ...

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    D a t a l o g g i n g v i e w * s t a r t e r a s e 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 or scroll down and press *iok to select erase to empty all logged data points from the memory. D a t a l o g g i n g v i e w s t o p * e r a s e 5. Press off to turn the meter off or press to exit to a previous menu ...

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    Tube positioning ring the tube positioning ring to put a ring on a tube, remove the cap from the tube. The tube positioning ring has two tapered notches and one squared-off notch. Place the ring on the tube with the squared-off notch closest to the top of the tube and tapered notches closer to the b...

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    Analysis 1. Press *ion to turn the meter on. 1 . 3 2. Press *iok to select measure. M a i n m e n u * m e a s u r e d a t a l o g g i n g o p t i o n s 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 3. Rinse a clean tube (0290) three times with the blank. For the most accurate results, use the same tube for the bl...

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    6. Open the meter lid. Insert the tube into the chamber. Align the index notch on the positioning ring with the index arrow on the meter. Close the lid. 7. Press *iok to select scan blank. Remove the tube. Note: for the best accuracy, especially at low turbidity, see tip 17 on page 29. T u r b i d i...

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    10. Cap the tube. Wipe the tube thoroughly again with a lint-free cloth. 11. Open the meter lid. Insert the tube into the chamber. Align the index notch on the positioning ring with the index arrow on the meter. Close the lid. 12. Press *iok to select scan sample. Turbidity ( f ) * s c a n s a m p l...

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    Dilution procedures if a sample is encountered that is more than 4000 ntu, a careful dilution with 0 ntu or very low turbidity water will bring the sample into an acceptable range. However, there is no guarantee that halving the concentration will exactly halve the ntu value. Particulates often reac...

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    2. Pour approximately 50 ml of deionized water into the barrel of the syringe. Insert the plunger. Exert pressure on the plunger to slowly force the water through the filter. Collect water in the clean storage container. Rinse walls of the container then discard this rinse water. 3. Remove the filte...

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    Turbidity standards only use amco or formazin standards with the 2020. Stablcal â standards below 50 ntu should not be used to calibrate the 2020. The diluent used in stablcal â standards has a different refractive index than traditional formazin standards and will affect the results. The concentrat...

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    4. Fill the tube to the fill line with the blank. Pour the blank down the inside of the tube to avoid creating bubbles. Cap the tube. 5. Dry the tube with a lint-free cloth. Put on a dry positioning ring. Cap the tube. Wipe the tube thoroughly again with a lint-free cloth. 6. Open the meter lid. Ins...

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    8. Rinse a clean tube (0290), or the same tube, three times with the standard. Avoid spilling standard on the outside of the tube. Important: while the tube is inverted, wipe the lip of the tube to remove droplets of liquid that may be present. This will prevent liquid from being trapped under the r...

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    12. Press *iok to select scan sample. Turbidity ( f ) * s c a n s a m p l e 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 13. Observe the result. T u r b i d i t y ( f ) 0 . 5 4 n t u * s c a n s a m p l e q 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 14. Press ˆ and then press *iok to select calibrate. T u r b i d i t y ( f...

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    C a l i b r a t e 0 0 . 5 0 q, q, p 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 16. When the value on the display matches the concentration of the turbidity standard, press the *iok to select set. C a l i b r a t e 0 0 . 5 0 * s e t q 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 or press ˆ press *iok to return the meter to ...

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    Testing tips 1. Samples should be collected in a clean glass or polyethylene container. 2. Samples should be analyzed as soon as possible after collection. 3. Gently mix sample by inverting before taking a reading but avoid introducing air bubbles. 4. For the most precise results, follow the recomme...

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    Troubleshooting guide error messages err1 very low battery. Replace battery or switch to ac power. Press back arrow ( ) to back out. Scan sample again. Replace battery as soon as possible. Err2 the meter can not be calibrated outside of the allowable range of the displayed reading. Confirm that stan...

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    Meter freezes lid was opened when reading was being taken. Close lid. Read again. Unplug adapter. Plug adapter in to reset. Stray light the accuracy of readings on the 2020 should not be affected by stray light. Make sure that the sample compartment lid is always fully closed when taking readings. G...

  • Page 32: Top

    32 general operating information top view bottom view serial number battery compartment on off ok l mott 2020

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    General operating information the operation of the 2020 is controlled by the menu driven software and user interface. A menu is a list of choices. This allows a selection of various tasks for the 2020 to perform, such as, scan blank and scan sample. The keypad is used to make menu selections that ar...

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    The display & menus the display allows menu selections to be viewed and selected. These selections instruct the 2020 to perform specific 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. The...

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    Header m e n u t i t l e message or result window m e s s ag e o r r e s u l t menu selection window * f i r s t c h o i c e ~ footer 1 6 : 0 2 : 1 9 0 1 / 0 4 / 0 5 s e c o n d c h o i c e a n o t h e r a n d s o o n as described previously, the button allows an exit or escape from the current menu...

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    Tubes the 2020 uses one type of tube (code 0290) for the turbidity test. 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, fingerprints, dried spills and significant scratches, especially the central zone between...

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    Pc link the 2020 may be interfaced with any windows-based computer by using the lamotte smartlink 2 program and interface cable (code 1912-3 with 3.5 inch disk or code 1912-cd with compact disk). The program will store test information and results in a database. The meter may also be interfaced with...

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    Maintenance cleaning clean meter with a damp, lint-free cloth. Do not allow water to enter the meter chamber or any other parts of the meter. Clean meter chamber and lenses over leds with a lint-free cloth slightly dampened with alcohol. Repairs should it be necessary to return the meter for repair ...

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    General information packaging and delivery experienced packaging personnel at lamotte company assure adequate protection against normal hazards encountered in transportation of shipments. After the product leaves lamotte company, all responsibility for safe delivery is assured by the transportation ...

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    Specifications - 2020e and 2020i instrument type: nephelometer standard: epa 180.1, 2020e iso7027, 2020i units of measure & range: ntu (nephelometric turbidity units) 0-2000 fnu (formazin nephelometric units) 0-2000 asbc (american society of brewing chemists) 0-3500 ebc (european brewery convention)...

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    Statistical and technical definitions related to product specifications method detection limit (mdl): “the method detection limit (mdl) is defined as the minimum concentration of a substance that can be measured and reported with 99% confidence that the analyte concentration is greater than zero and...

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    Contents and accessories 2020e kit epa version code 1979-epa 2020i kit iso version code 1979-iso contents code code 0 ntu standard, 60 ml 1480 1480 1 ntu standard, 60 ml 1484 1481 10 ntu standard, 60 ml 1485 1482 water sample bottle, 60 ml 0688 0688 tubes, 4 (two with tube positioning rings) — — bat...

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    Lamotte company • po box 329 • 802 washington avenue chestertown • maryland • 21620 • usa usa 800-344-3100 • 410-778-3100 • fax 410-778-6394 • www.Lamotte.Com code 1979-mn.