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1—68

Chlorine Dioxide,

continued

Optional Reagents,

continued

Description

Units

Cat. No.

Sodium Hydroxide Standard Solution, 1 N ....................... 100-mL MDB ....... 1045-32
Sulfuric Acid Standard Solution, 1 N ................................ 100-mL MDB ....... 1270-32
Water, deionized ..................................................................................4 L ......... 272-56

Optional Apparatus

AccuVac

®

Snapper Kit ......................................................................each ..... 24052-00

Caps for 10-mL sample cells .........................................................12/pkg ..... 24018-12
Cylinder, graduated, 25-mL, glass.....................................................each ......... 508-40
Cylinder, graduated, 100-mL, glass...................................................each ......... 508-42
sension™1 Basic Portable pH Meter, with electrode ........................each ..... 51700-10
Pipet, TenSette

®

, 0.1 to 1.0 mL .........................................................each ..... 19700-01

Pipet Tips, for 19700-01 TenSette

®

Pipet......................................50/pkg ..... 21856-96

Replacement Parts

Batteries, AAA, alkaline.................................................................. 4/pkg ..... 46743-00
Instrument Cap/light shield................................................................each ..... 59548-00
Instrument Manual.............................................................................each ..... 59571-88
Sample Cell, 25 x 60 mm 10 mL mark............................................ 6/pkg ..... 24276-06

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Summary of Contents for POCKET COLORIMETER II

Page 1: ...59571 88 POCKET COLORIMETER II ANALYSIS SYSTEMS INSTRUCTION MANUAL Bromine Br Chlorine Dioxide ClO2 Chlorine Cl2 pH Hach Company 2004 2006 All rights reserved Printed in the U S A te dk 9 06 4ed...

Page 2: ...s intended for use with the following Pocket Colorimeter II instruments The Pocket Colorimeter II instruments listed above are not interchangeable Bromine Cat No 59530 01 Chlorine Dioxide Cat No 59530...

Page 3: ...8 Specifications 1 9 Instrument Keys and Display 1 11 Instrument Cap Cord 1 12 Bromine Total LR 1 15 Measuring Hints 1 15 Sampling and Storage 1 22 Accuracy Check 1 22 Interferences 1 24 Method Perfo...

Page 4: ...Measuring Hints 1 39 Accuracy Check 1 44 Interferences 1 46 Spec Secondary Standards 1 49 Method Performance 1 49 Summary of Method 1 49 Replacement Parts 1 50 Chlorine Dioxide 1 53 Measuring Hints 1...

Page 5: ...ndard Calibration Adjust 1 75 Summary of Method 1 75 Replacement Parts 1 76 Instrument Operation 2 3 Key Functions 2 3 Menu Selections 2 4 Switching Ranges 2 4 Setting the Time 2 4 Recalling Stored Me...

Page 6: ...17 Entering a Predetermined Calibration Curve 2 20 Editing a User entered or Factory Calibration Curve 2 22 Exiting the Calibration Routine 2 24 Deleting Calibration Points 2 24 Retrieving the Factory...

Page 7: ...ified in this manual Laboratory Safety As part of good laboratory practice please familiarize yourself with the reagents used in these procedures Read all product labels and the material safety data s...

Page 8: ...ardous situation that may result in minor or moderate injury NOTE Information that requires special emphasis Precautionary Labels Please pay particular attention to labels and tags attached to the ins...

Page 9: ...Absorbance range 0 2 5 Abs Dimensions 3 2 x 6 1 x 15 2 cm 1 25 x 2 4 x 6 inches Weight 0 2 kg 0 43 lb Sample cells 25 mm 10 mL 1 cm 10 mL AccuVac Ampuls Operating conditions 0 to 50 C 32 to 122 F 0 to...

Page 10: ...productos qu micos GEFAHR Das Arbeiten mit chemischen Proben Standards und Reagenzien ist mit Gefahren verbunden Es wird dem Benutzer dieser Produkte empfohlen sich vor der Arbeit mit sicheren Verfahr...

Page 11: ...d Display Item Description 1 POWER BACKLIGHT Key 2 ZERO SCROLL Key 3 MENU Key 4 Numeric Display 5 Range Indicator 6 Range Indicator 7 Menu Indicator 8 Calibration Adjusted Indicator 9 Battery Low Indi...

Page 12: ...Use the instrument cap cord to secure the cap to the body of the colorimeter and prevent loss of the cap See Figure 1 on page 1 13 1 Loop the instrument cap cord through the ring on the cap 2 Remove...

Page 13: ...1 13 Instrument Cap Cord continued Figure 1 Attaching the Instrument Cap Cord...

Page 14: ...1 14...

Page 15: ...igned to measure solutions contained in sample cells DO NOT dip the meter in the sample or pour the sample directly into the cell holder Note If the sample temporarily turns yellow after reagent addit...

Page 16: ...cannot be preserved for later analysis 2 Press the POWER key to turn the meter on The arrow should indicate the low range channel LR Note See page 2 4 for information on selecting the correct range ch...

Page 17: ...from the cell holder 5 Fill a second sample cell to the 10 mL line with sample Wipe off any liquid or fingerprints 6 Add the contents of one DPD Total Chlorine Powder Pillow to the sample cell the pre...

Page 18: ...ll develop if bromine is present Note Wipe liquid off sample cells 8 Place the prepared sample in the cell holder and cover with the instrument cap Wait at least three but no more than six minutes aft...

Page 19: ...be analyzed immediately and cannot be preserved for later analysis 2 Press the POWER key to turn the meter on The arrow should indicate the low range channel LR Note See page 2 4 for information on se...

Page 20: ...r 5 Fill a DPD Total Chlorine Reagent AccuVac Ampul with sample Keep the tip of the ampule immersed until the ampule fills completely 6 Quickly invert the ampul several times to mix Wipe off any liqui...

Page 21: ...red sample in the cell holder and cover with the instrument cap Wait at least three but no more than six minutes after filling the ampule Note Wipe liquid off sample cells 8 Press READ ENTER The displ...

Page 22: ...mples Swirl gently to mix For AccuVac Ampuls use 0 3 0 6 and 0 9 mL of standard and a 30 mL sample in a 50 mL beaker 3 Analyze each sample as described in the procedure Each 0 1 mL of standard will ca...

Page 23: ...Two options are available on the Pocket Colorimeter II to meet this requirement A bromine standard may be prepared and used to validate the calibration curve using the Standard Calibration Adjust feat...

Page 24: ...tly Neutralize to pH 6 7 with 1 N Sodium Hydroxide Determine amount to be added on separate 10 mL sample then add the same amount to the sample being tested Correct for the additional volume Alkalinit...

Page 25: ...g L Cat No 343 32 to a 25 mL sample 3 Mix and wait one minute 4 Add 3 drops Sodium Arsenite 5 g L Cat No 1047 32 and mix 5 Analyze 10 mL of the treated sample as described in the procedure 6 Subtract...

Page 26: ...1 26 Bromine Total LR continued Method Performance Estimated Detection Limit EDL 0 05 mg L Br2 Typical Precision 95 confidence interval 2 25 0 11 mg L Br2...

Page 27: ...ypically less than 4 mg L use the low range procedure Analyze samples immediately Do not use plastic containers to collect samples Note The Pocket Colorimeter II is designed to measure solutions conta...

Page 28: ...sis 2 Press the POWER key to turn the meter on The arrow should indicate the high range channel HR Note See page 2 4 for information on selecting the correct range channel 3 Remove the meter cap Place...

Page 29: ...cell holder 5 Fill another 1 cm 10 mL sample cell to the 5 mL line with sample 6 Add the contents of two DPD Total Chlorine Powder Pillows to the sample cell the prepared sample Note The SwifTest Disp...

Page 30: ...lop if bromine is present Note Wipe liquid off sample cells 8 Place the prepared sample in the cell holder and cover with the instrument cap Wait at least three but no more than six minutes after addi...

Page 31: ...s Method 1 Snap the neck off a high range Chlorine Standard Solution Voluette Ampule 25 30 mg L Cl2 2 Use a TenSette pipet to add 0 1 0 2 and 0 3 mL of standard to three separate 5 mL samples Swirl ge...

Page 32: ...Pocket Colorimeter II to meet this requirement A bromine standard may be prepared and used to validate the calibration curve using the Standard Calibration Adjust feature see page 2 13 for more inform...

Page 33: ...tly Neutralize to pH 6 7 with 1 N Sodium Hydroxide Determine amount to be added on separate 10 mL sample then add the same amount to the sample being tested Correct for the additional volume Alkalinit...

Page 34: ...g L Cat No 343 32 to a 25 mL sample 3 Mix and wait one minute 4 Add 3 drops Sodium Arsenite 5 g L Cat No 1047 32 and mix 5 Analyze 10 mL of the treated sample as described in the procedure 6 Subtract...

Page 35: ...henylenediamine to form a pink color which is proportional to the total bromine concentration The range of analysis is extended in the high range procedure by adding additional powder to increase the...

Page 36: ...30 mg L 20 pkg 26300 20 Potassium Iodide Solution 30 g L 100 mL MDB 343 32 Sodium Arsenite Solution 5 g L 100 mL MDB 1047 32 Sodium Hydroxide Standard Solution 1 N 100 mL MDB 1045 32 Sulfuric Acid Sta...

Page 37: ...nsion 1 Basic Portable pH Meter with electrode each 51700 10 Pipet TenSette 0 1 to 1 0 mL each 19700 01 Pipet Tips For 19700 01 TenSette 50 pkg 21856 96 Sample Cells 10 mL with screw caps 6 pkg 24276...

Page 38: ...1 38...

Page 39: ...ting drinking water analyses free and total chlorine and wastewater analyses total chlorine Measuring Hints If the chlorine concentration is typically less than 2 mg L use the Chlorine Pocket Colorime...

Page 40: ...ions are subject to variable levels of interferences from monochloramine See Interferences on page 1 46 Note The Pocket Colorimeter II is designed to measure solutions contained in sample cells DO NOT...

Page 41: ...ed for later analysis 2 Press the POWER key to turn the meter on The arrow should indicate the chlorine channel mg L Cl2 Note See page 2 4 for information on selecting the correct range channel 3 Remo...

Page 42: ...mL line with sample Cap Note Do not use the same sample cells for free and total chlorine without thoroughly rinsing the cells between the free and total tests 6 Add the contents of one DPD Free Chlo...

Page 43: ...repared sample in the cell holder and cover with the instrument cap Wait three to six minutes after adding the DPD Total Pillows Proceed to step 9 9 Press READ ENTER The instrument will show followed...

Page 44: ...e an incremental increase in chlorine The exact value depends on the concentration of the Voluette ampule standard Check the certificate enclosed with the Voluette ampules for calculation of the expec...

Page 45: ...rd Calibration Adjust feature see page 2 13 for more information The concentration of the prepared standard must be determined with an alternate instrument such as a spectrophotometer colorimeter or b...

Page 46: ...L sample then add the same amount to the sample being tested Correct for the additional volume Alkalinity Greater than 250 mg L CaCO3 May not develop full color or color may fade instantly Neutralize...

Page 47: ...g L Cat No 343 32 to a 5 mL sample 3 Mix and wait one minute 4 Add 3 drops Sodium Arsenite 5 g L Cat No 1047 32 and mix 5 Analyze 5 mL of the treated sample as described in the procedure 6 Subtract t...

Page 48: ...ne test varies with the temperature the relative amount of monochloramine to free chlorine and the time required to do the analysis Approximate interference levels of monochloramine in the free chlori...

Page 49: ...and can be determined together as total chlorine Free chlorine is present as hypochlorous acid or hypochlorite ion Combined chlorine represents a combination of chlorine containing compounds includin...

Page 50: ...chlorine is extended by adding more indicator in proportion to sample volume Thus a larger 25 mL size powder pillow of DPD Reagent is added to a 5 mL sample Replacement Parts Required Reagents Descri...

Page 51: ...047 32 Sodium Hydroxide Standard Solution 1 N 100 mL MDB 1045 32 Sulfuric Acid Standard Solution 1 N 100 mL MDB 1270 32 Water deionized 4 L 272 56 Optional Apparatus AccuVac Snapper Kit each 24052 00...

Page 52: ...it Cat No Pipet TenSette 0 1 to 1 0 mL each 19700 01 Pipet Tips For 19700 01 TenSette Pipet 50 pkg 21856 96 Replacement Parts Cap for 1 cm 10 mL sample cell each 52626 00 Instrument Cap light shield e...

Page 53: ...dioxide concentration exceeds the upper limit of the test 5 00 mg L ClO2 the color will not develop properly The display will show overrange flashing 5 50 when the concentration is 5 50 or more If th...

Page 54: ...to settle before taking readings For best accuracy when using AccuVac Ampuls draw sample into an empty AccuVac ampule Cat No 26779 25 and use that for the zero instead of a 10 mL sample cell Check th...

Page 55: ...l with sample the blank Note Samples must be analyzed immediately 2 Press the POWER key to turn the meter on The arrow should indicate channel 1 Note See page 2 4 for information on selecting the corr...

Page 56: ...cell with 10 mL of sample Immediately add four drops of Glycine Reagent to the sample cell and swirl to mix 6 Immediately add the contents of one DPD Free Powder Pillow Cap and swirl gently for 20 se...

Page 57: ...ntinued 7 Within one minute of adding the DPD to the sample place the prepared sample into the cell holder 8 Cover the sample with the instrument cap 9 Press READ ENTER The display will show followed...

Page 58: ...l with sample the blank Note Samples must be analyzed immediately 2 Press the POWER key to turn the meter on The arrow should indicate channel 2 Note See page 2 4 for information on selecting the corr...

Page 59: ...older 5 Collect 40 mL of sample in a 50 or 100 mL beaker Add 16 drops of Glycine Reagent to the 40 mL of sample Swirl gently to mix Continue with step 6 immediately 6 Fill a DPD Free Chlorine Reagent...

Page 60: ...to settle Accuracy is not affected by undissolved powder Note A pink color will form if chlorine dioxide is present 8 Within one minute after filling the ampule place it into the cell holder Cover th...

Page 61: ...demand by soaking in a dilute bleach solution 1 mL commercial bleach to l liter of deionized water for at least one hour Rinse thoroughly with deionized or distilled water If sample containers are rin...

Page 62: ...with the standard 50 75 mg L Cl2 Calculate the volume of standard needed as follows mL standard needed 100 standard concentration c Pipet the volume of standard needed into a 100 mL volumetric flask...

Page 63: ...ditions Hach recommends using the factory calibration A user calibration or a user prepared chlorine dioxide standard may be required by a regulatory official or agency Two options are available on th...

Page 64: ...Pillows Estimated Detection Limit EDL 0 04 mg L ClO2 AccuVac and Powder Pillows Interferences Samples containing more than 250 mg L alkalinity or 150 mg L acidity as CaCO3 may inhibit full color devel...

Page 65: ...3 drops of 30 g L Potassium Iodide Solution mix and wait one minute Add 3 drops of 5 g L Sodium Arsenite Solution and mix Subtract the result of this test from the original analysis to obtain the accu...

Page 66: ...N diethyl p phenylenediamine indicator to form a pink color The color intensity is proportional to the ClO2 in the sample Chlorine interference is eliminated by adding Glycine Reagent which converts...

Page 67: ...AccuVac Ampuls 25 pkg 1 Glycine Reagent 29 mL Require Apparatus Using AccuVac Ampuls Beaker 50 mL glass each 500 41 Beaker 100 mL glass each 500 42 Optional Reagents AccuVac Ampuls for Blanks 25 pkg...

Page 68: ...00 Caps for 10 mL sample cells 12 pkg 24018 12 Cylinder graduated 25 mL glass each 508 40 Cylinder graduated 100 mL glass each 508 42 sension 1 Basic Portable pH Meter with electrode each 51700 10 Pi...

Page 69: ...strument and method If not reading within 0 1 pH unit recalibrate the instrument The amount of indicator and sample is critical for accurate results and should be measured carefully Attempting to meas...

Page 70: ...ith sample 2 Press the POWER key to turn the meter on The arrow should indicate pH Note See page 2 4 for information on selecting the correct range channel 3 Using the calibrated dropper add 0 5 mL of...

Page 71: ...e cell to the 10 mL mark with the original sample Cap the sample cell This is the blank 5 Place the blank into the cell holder Note Wipe liquid off sample cells or damage to the instrument may occur 6...

Page 72: ...ued 7 Press ZERO SCROLL The display will show then 0 0 Remove the blank from the cell holder 8 Place the prepared sample in the cell holder Note Wipe liquid off sample cells 9 Cover the cell with the...

Page 73: ...1 73 pH continued 10 Press READ ENTER The display will show followed by results in pH units...

Page 74: ...ial included in this kit or bulk buffer solution see Optional Reagents on page 1 76 Add 0 5 mL of Phenol Red Solution to 10 mL of pH 7 00 Buffer Solution to prepare the color standard Do not use color...

Page 75: ...4 Alum type flocculents important for clear water perform best in a pH range of 7 2 to 8 0 Keeping the pH below 8 0 is important to control algae A sudden rise in pH may signal an increase in algal g...

Page 76: ...L 26575 12 Required Apparatus Sample Cells 10 mL with caps 6 pkg 24276 06 Optional Reagents Buffer Solution pH 7 0 500 mL 12222 49 Water deionized 500 mL 272 49 Optional Apparatus Droppers 0 5 and 1 0...

Page 77: ...2 1 Section 2 Instrument Manual...

Page 78: ...2 2...

Page 79: ...the backlight This key functions the same in all instrument modes and ranges ZERO SCROLL In measurement mode sets the instrument to zero In menu mode scrolls through menu options Also scrolls numbers...

Page 80: ...the current range 2 Press the READ ENTER key to toggle between ranges 3 Press MENU again to accept and exit back to the measurement screen Setting the Time 1 Press the MENU key then press the ZERO SCR...

Page 81: ...ss the ZERO SCROLL key until the display shows RCL The instrument automatically stores the last 10 measurements 2 In RCL press READ ENTER to recall the stored measurements beginning with the most rece...

Page 82: ...battery compartment cover The display will show the software version number e g P 1 6 after correct battery installation When replacing discharged batteries always replace the complete set of four alk...

Page 83: ...2 7 Instrument Operation continued Figure 1 Battery Installation...

Page 84: ...2 8...

Page 85: ...ges in the order that they appear on the display Service Centers are listed in page 2 37 Error Messages 1 E 0 No Zero User mode Error occurs when trying to read a standard in the user calibration mode...

Page 86: ...chemistry If the E 1 or E 2 error occurs while zeroing the meter the meter will require the user to re zero 4 E 3 Standard Adjust Error The value obtained on the prepared standard exceeds the adjustme...

Page 87: ...r measure the absorbance value again If the problem persists contact a Service Center page 2 37 6 E 7 Standard Value Error User mode Standard concentration is equal to another standard concentration t...

Page 88: ...e instrument If the problem persists contact a Service Center page 2 37 Note See Maximum Minimum Displayed Value on page 2 26 for more information 9 Overrange flashing number above stated test range N...

Page 89: ...nown standard Use the standard described in the procedure 1 Place a blank in the meter in measurement mode Press ZERO SCROLL 2 Place the reacted standard in the meter Press READ ENTER 3 Press MENU the...

Page 90: ...bration Adjusted icon will appear in the display window To turn off Standard Calibration Adjust SCA 1 Press MENU 2 Press ZERO SCROLL until SCA appears in the display 3 Press READ ENTER then press ZERO...

Page 91: ...uments Any chemistry that can be run at the instrument wavelength may be user entered in these channels Using prepared standard solutions that cover the range of interest the meter generates a calibra...

Page 92: ...rations are stored upon exit from the calibration or edit modes Note To return to factory settings following the instructions in Retrieving the Factory Calibration on page 2 25 If the instrument is sh...

Page 93: ...reagent blank is significantly more turbid or colored than deionized water Use the deionized water or the reagent blank as the zero concentration point S0 in the following calibration procedure 1 Turn...

Page 94: ...ter or range RES resolution cannot be changed 6 In uncalibrated meters or meters with ranges labeled Abs RES will appear Press ZERO SCROLL to review the current resolution decimal placement Press ZERO...

Page 95: ...AD ENTER key to move from digit to digit Use the ZERO SCROLL key to change the number 12 After completing entry of the first standard value press the READ ENTER key The display will show A1 13 Insert...

Page 96: ...dure uses the Edit mode 1 Turn on the instrument and select the range to be calibrated An arrow at the top of the display will point to the selected range To change ranges press the MENU key then use...

Page 97: ...appear on the display 7 To enter the absorbance value for S0 press the READ ENTER key to go to entry mode Use the ZERO SCROLL key to select the numerical value then press the READ ENTER key to accept...

Page 98: ...ay Note When editing a factory calibrated meter or range RES resolution cannot be changed Note When RES or S0 appears in the display press ZERO SCROLL to quickly scroll to the data to be edited 3 In u...

Page 99: ...the READ ENTER key to go to entry mode Use the ZERO SCROLL key to select the numerical value then press the READ ENTER key to accept the entry and advance to the next decimal place Repeat this sequenc...

Page 100: ...ation or the factory calibration if no user entered calibration has been completed Deleting Calibration Points 1 Select the range containing user entered calibration points See Switching Ranges on pag...

Page 101: ...Select the range to restore factory default calibration See Switching Ranges on page 2 4 2 Press and hold the MENU key until USER then CAL appears 3 Press the ZERO SCROLL key to find dFL 4 Press the R...

Page 102: ...ue of the standards entered in a user calibration Measurements that exceed the minimum or maximum standards entered in the user calibration will return a flashing number indicating underrange or overr...

Page 103: ...alibration with the following standards S0 1 00 S1 2 00 S2 4 00 For Hach calibrated programs the maximum and minimum displayed values always equal the factory calibrated values and cannot be changed M...

Page 104: ...C Immunity Per 89 336 EEC EMC EN 61326 1998 Electrical Equipment for measurement control and laboratory use EMC requirements Supporting test records by Hach Company certified compliance by Hach Compan...

Page 105: ...EN 55022 CISPR 22 Class B emissions limits Canadian Interference causing Equipment Regulation IECS 003 Class A Supporting test records from Hach EMC Test Facility certified compliance by Hach Company...

Page 106: ...to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment...

Page 107: ...moving one of its batteries to verify that it is or is not the source of the interference 2 Move the Pocket Colorimeter instrument away from the device receiving the interference 3 Reposition the rece...

Page 108: ...2 32...

Page 109: ...2 33 At Hach Company customer service is an important part of every product we make With that in mind we have compiled the following information for your convenience GENERAL INFORMATION...

Page 110: ...2 34...

Page 111: ...0 227 4224 Loveland Colorado 80539 0389 U S A By FAX For order information by E mail 970 669 2932 Hach Loveland orders www hach com Information Required Hach account number if available Purchase order...

Page 112: ...ts in analytical methods they are happy to put their talents to work for you Call 1 800 227 4224 or E mail techhelp hach com International Customers Hach maintains a worldwide network of dealers and d...

Page 113: ...3H 0X4 800 227 4224 USA only 800 665 7635 Canada only FAX 515 232 3835 Telephone 204 632 5598 FAX 204 694 5134 E mail canada hach com Latin America Caribbean Africa Europe the Middle East Far East Ind...

Page 114: ...efective product or refund the purchase price excluding original shipping and handling charges Any product repaired or replaced under this warranty will be warranted only for the remainder of the orig...

Page 115: ...mage caused by misuse neglect accident or improper application or installation damage caused by any repair or attempted repair not authorized by Hach Company any product not used in accordance with th...

Page 116: ...ranty gives you specific rights and you may also have other rights that vary from state to state This warranty constitutes the final complete and exclusive statement of warranty terms and no person is...

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