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Below is a list of suggested wavelengths for the color of the reacted samples.
Use these as a starting point.

Sample

Color

Wavelength

Range

Yellow

430

Pink

520

Red

570

Green and Blue

620

n

CALIBRATION

As with all pre-calibrated meters, it is highly recommended, even if not
required by regulations, that the user periodically verify the performance of the
meter by running standards with a predetermined concentration. Results
outside of specification are an indication that the meter needs to be adjusted.
This can be done following the user calibration described on page 31. If the
user calibration fails to properly adjust the meter then the meter should be
returned to LaMotte Company for recalibration. (See page 5).

n

CALIBRATION CURVES

The Smart2 Colorimeter contains tests for the LaMotte reagent systems (see
Page 49). The first step in using a non-LaMotte reagent system with your
Smart2 Colorimeter is to create a calibration curve for the reagent system. To
create a calibration curve, prepare standard solutions of the test factor and use
the reagent system to test the standard solutions with the Smart2 Colorimeter.
Select a wavelength for the test as described above.

Plot the results (in ABS or %Transmittance) versus concentration to create a
calibration curve. The calibration curve may then be used to identify the
concentration of an unknown sample by testing the unknown, reading
Absorbance or %T, and finding the corresponding concentration from the
curve. The linear range of the reagent system can be determined and this
information can be used to input a User Test into the Smart2 Colorimeter (see
EDIT USER TESTS, page 36).

n

PROCEDURE

1.

Prepare 5 or 6 standard solutions of the factor being tested. The
concentration of these standards should be evenly distributed throughout
the range of the reagent system, and should include a 0 ppm standard
(distilled water). For instance, the solutions could measure 0, 10%, 30%,
50%, 70%, and 90% of the system’s maximum range.

2.

Turn on the Smart2 Colorimeter. Select the appropriate wavelength from
the absorbance mode. Be sure to select the appropriate wavelength for the
color produced by the reagent system.

14

SMART2 COLORIMETER 1.07

Summary of Contents for Smart 2

Page 1: ...SMART2 Colorimeter OPERATOR S MANUAL V 2 3 1 07 1919 MN...

Page 2: ......

Page 3: ...lysis 12 Reagent Blank 13 Colorimeter Tubes 13 Meter Care 13 Selecting an Appropriate Wavelength 13 14 Calibration 14 16 Calibration Curves 14 16 Standard Additions 16 17 Sample Dilution Techniques Vo...

Page 4: ...n 43 44 Selecting the Numerical Format of the Result 45 Selecting Units of Concentration 46 Setting the Clock 47 Turning the Data Logger On and Off 48 Factory Setup 49 Setting the Power Saver Function...

Page 5: ...ed or used in a wet or corrosive environment Care should be taken to prevent water or reagent chemicals from wet colorimeter tubes from entering the colorimeter chamber NEVER PUT WET TUBES IN COLORIME...

Page 6: ...ile in transit with a shipping carrier LaMotte Company will service and repair out of warranty products at a nominal charge nSPECIFICATIONS n INSTRUMENT TYPE Colorimeter Readout Graphical 4 line 16 ch...

Page 7: ...he accuracy can be expressed as a range about the true value in which a measurement occurs i e 0 5 ppm It can also be expressed as the recovery of a know amount of analyte in a determination of the an...

Page 8: ...k of Quantitative Chemical Analysis 5th ed Longman Scientific Technical 1989 p 130 nCONTENTS AND ACCESSORIES n CONTENTS SMART2 Colorimeter Test Tubes with Caps Power Supply 110 220V SMART2 Colorimeter...

Page 9: ...1000 4 3 1995 IEC61000 4 4 1995 IEC61000 4 5 1995 IEC61000 4 6 1996 IEC61000 4 11 1994 EN61000 3 2 1995 EN61000 3 3 1994 12 EN55011 CISPR11 FCCCFR47 Part 15 EN61558 802 Washington Avenue PO Box 329 Ch...

Page 10: ...s such as those found in streams and rivers are usually well mixed The sample should be taken downstream from any tributary industrial or sewage pollution source For comparison purposes samples may be...

Page 11: ...vaporators and condensers different considerations are required because of chemical changes which occur between the inlet and outlet water One must have a basic understanding of the type of chemical c...

Page 12: ...asses through a colored sample versus after it passes through a colored sample The reason for this is that the one color absorbed by the sample is only a small portion of the total amount of light pas...

Page 13: ...to slight variations in results e g if a tube is turned while in the sample chamber the reading will likely change slightly To eliminate this error put the tubes into the sample chamber with the same...

Page 14: ...e prepare standard solutions of the test factor and use the reagent system to test the standard solutions with the Smart2 Colorimeter Select a wavelength for the test as described above Plot the resul...

Page 15: ...er can be used Plot the standard solution concentration on the horizontal axis and the absorbance on the vertical axis 6 After plotting the results draw a line or curve of best fit through the plotted...

Page 16: ...tion of test of Maximum concentration Final concentration of Diluted Standard Volume of Standard Concentration of Original Standard mL of Original Standard Required 10 0 ppm 90 9 0 ppm 100 mL 1000 ppm...

Page 17: ...ultiply the resulting concentration by 2 to obtain the test result The following table gives quick reference guidelines on dilutions of various proportions All dilutions are based on a 10 mL volume so...

Page 18: ...is suspected measure the pH of a reacted distilled water reagent blank using a pH meter This is the ideal pH for the test Measure the pH of a reacted water sample using the pH meter If the pH is signi...

Page 19: ...erence filter The interference filters select a narrow band of light from the corresponding LED for the colorimetric measurements The microprocessor automatically selects the correct LED photodiode co...

Page 20: ...ws a diagram of the Smart2 Colorimeter and its components 20 SMART2 COLORIMETER 1 07 Serial Number Battery Compartment RS232 Serial Port AC Adapter Socket Lid Top View Bottom View Side Views ENTER OFF...

Page 21: ...ENU MAIN MENU Testing Menu Editing Menu PC Link 3 Press Q ENTER to select All Tests TESTING MENU All Tests Sequence 1 Sequence 2 4 Press t or s to move the to the desired test ALL TESTS 001 Alk UDV 00...

Page 22: ...2 will scan the sample and display the concentration 015 Chlorine Scan Sample 9 After recording test result scroll with t or s and make another selection with Q ENTER Press EXIT to escape to previous...

Page 23: ...n will cause the display to scroll up in a list of menu choices It will move through a list viewed in the display It will auto scroll when held down ENTER Q This button is used to select the menu choi...

Page 24: ...COND CHOICE MENU CHOICE WINDOW ANOTHER AND ANOTHER AND SO ON Think of the menu choices as a vertical list in the display which moves up or down each time an arrow button is pressed This list or menu i...

Page 25: ...of the menu is visible at the bottom of the display TESTING MENU t TESTING MENU t TESTING MENU Result or Message Result or Message Result or Message ANOTHER AND ANOTHER AND SO ON AND ANOTHER AND SO O...

Page 26: ...over following the last choice So all menu choices can be reached by scrolling in either direction The diagrams below demonstrate a looping menu AND SO ON AND ANOTHER ANOTHER AND SO ON AND ANOTHER AN...

Page 27: ...ds and the the Start screen appears Press the Q ENTER button to begin testing VER 1 0 Smart2 Start 2 The MAIN MENU will appear Press the Q ENTER button to select Testing Menu MAIN MENU Testing Menu Ed...

Page 28: ...L 085 Silica Lo 032 Cu DDC 077 Phenol 051 Iron Bipyr 078 Phosphate L 090 Sulfide LR These alterable sequences allow a series of tests to be setup that are run frequently The order of the individual te...

Page 29: ...chnical Services at 1 800 344 3100 410 778 3100 outside the USA or email at tech lamotte com for a current list of available calibrations and downloading instructions nTESTING WITH THE LaMOTTE PRE PRO...

Page 30: ...ll scan the sample and the results screen will appear 002 Aluminum Scan Sample Record test result To repeat the test press the Q ENTER button to scan the sample again The last blank scanned is used to...

Page 31: ...dure should be followed as often as required by regulations and laws for compliance monitoring In the example below the Aluminum calibration will be standardized Prepare a standard solution to be test...

Page 32: ...g Set the calibration by pressing Q ENTER to select Set Calibration or use s or t to scroll to and select Factory Setting t o revert to the factory calibration 002 Aluminum 0 10 Set Calibration Factor...

Page 33: ...to select Testing Menu MAIN MENU Testing Menu Editing Menu PC Link Press the t button to scroll to Absorbance TESTING MENU All Tests Sequence 1 Sequence 2 Sequence 3 Absorbance Press the Q ENTER butt...

Page 34: ...o the colorimeter for repeated scans A different blank can be used by pressing the s button to scroll back to Scan Blank and then scanning another blank Scroll with t or s and make another selection w...

Page 35: ...Start screen appears Press the Q ENTER button to start testing VER 1 0 Smart2 START The Main Menu will appear Press the t button to scroll to Editing Menu MAIN MENU Testing Menu Editing Menu PC Link P...

Page 36: ...Below is a step by step example of how to add a test to SEQUENCE 1 starting from the EDIT SEQUENCE 1 menu Press the t button to scroll to 009 Bromine LR EDIT SEQUENCE 1 015 Chlorine 079 Phosphate H 00...

Page 37: ...QUENCE menu appears Select another sequence to edit or press the EXIT button to return to the EDITING MENU Press the EXIT button again to return the the MAIN MENU EDIT SEQUENCE 1 Edit Sequence 1 Edit...

Page 38: ...ically saved Press the EXIT button to exit the EDIT SEQUENCE 1 menu and return to the EDIT SEQUENCE menu or continue editing EDIT SEQUENCE 1 015 Chlorine 079 Phosphate H 009 Bromine LR 076 pH TB 060 M...

Page 39: ...er all the concentrations for the range of the test being performed and be scanned beginning with the low concentration and finishing with the high concentration for more information about this see CA...

Page 40: ...User Test01 menu press the Q ENTER button to select Name The Test and change the name of User Test 01 EDIT USER TEST01 Name The Test Select Vial WL New Calibration Decimal Places Select Units The cur...

Page 41: ...e letter O NAME THE TEST O 105 H2Or Test01 The letter O has been entered in the third position of the name and the cursor has moved to the fourth letter r Press the EXIT button to save the name entere...

Page 42: ...scroll to Select Vial WL and press Q ENTER button to select EDIT USER TEST01 Name The Test Select Vial WL New Calibration Decimal Places Select Units Use the t and s buttons to scroll to the appropria...

Page 43: ...the first position on the display Press Q ENTER button to select that digit 1 for this example LOW STANDARD 0______ Continue The number 0 is always the starting point for the next digit Continue selec...

Page 44: ...ow standard in the sample chamber Press Q ENTER to scan the low standard Insert Lo Standard Continue Place the reacted high standard in the sample chamber Press Q ENTER to scan the high standard Inser...

Page 45: ...ny more significant figures than will be displayed Menu choices of 0 1 2 or 3 decimal places will be given for the display Use the t button to scroll to Decimal Places and press Q ENTER button to sele...

Page 46: ...o scroll to Select Units and press Q ENTER to select EDIT USER TEST01 Decimal Places Select Units Use the t button to scroll to the appropriate unit and press Q ENTER to select SELECT UNITS No Units p...

Page 47: ...ime are displayed as month day year on the first line and as hours minutes seconds on the second line A two digit number is displayed for each setting Use the t and s buttons to scroll to the appropri...

Page 48: ...to Edit Logging Press Q ENTER to select EDITING MENU Edit Sequences Edit User Test Set Clock Editing Logging Factory Setup Set PWR Save The current setting is always displayed next to the To change th...

Page 49: ...set for 5 15 30 or 60 minutes The default setting is 5 minutes From the EDITING MENU use the t button to scroll to Set PWR Save Press Q ENTER to select EDITING MENU Edit Sequences Edit User Test Set...

Page 50: ...00 baud no parity 8 data bits 1 stop bit nCOMPUTER CONNECTION RS 232 interface connection 8 pin mini DIN 9 pin F D submin Order Code 1772 BATTERY OPERATION The colorimeter may be run on battery power...

Page 51: ...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 To avoid harm to the environment an...

Page 52: ...blank is required Visually check for color development in reacted sample Repeat test if necessary If Blank is displayed press the Q ENTER button to continue Check to see if the meter was blanked prope...

Page 53: ...S n STRAY LIGHT The SMART2 Colorimeter should have no problems with stray light Make sure that the sample compartment lid is always fully closed except when testing COD with the adapter SMART2 COLORIM...

Page 54: ...54 SMART2 COLORIMETER 1 07...

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