Hach POCKET COLORIMETER II Instruction Manual
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Hach POCKET COLORIMETER II Instruction Manual

Analysis systems. chlorine (cl2)
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59570-88
POCKET COLORIMETER™ II
ANALYSIS SYSTEMS
INSTRUCTION MANUAL
Chlorine (Cl
)
2
© Hach Company, 2006–2009, 2013. All rights reserved. Printed in the U.S.A.te/jk/dk 03/13 6ed

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  • Page 1 59570-88 POCKET COLORIMETER™ II ANALYSIS SYSTEMS INSTRUCTION MANUAL Chlorine (Cl © Hach Company, 2006–2009, 2013. All rights reserved. Printed in the U.S.A.te/jk/dk 03/13 6ed...
  • Page 2 Important Note This manual is intended for use with the following Pocket Colorimeter™ II instrument: Chlorine (Cl Cat. No. 59530-00 Note: This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States. 1—2...

  • Page 3: Table Of Contents

    Table of Contents Safety Precautions ................1—7 Laboratory Safety................1—7 Use of Hazard Information ..............1—8 Precautionary Labels ................1—9 Specifications ..................1—11 Instrument Keys and Display ............1—15 Instrument Cap Cord ................. 1—16 Chlorine, Free and Total, LR ............1—19 Measuring Hints ................
  • Page 4 Table of Contents, continued Spec√™ Secondary Standards for DPD Chlorine ...... 1—51 √ Using the Spec Standards.............. 1—52 Summary of Method ................1—53 Replacement Parts ................1—54 Instrument Operation ................2—3 Key Functions..................2—3 Menu Selections ................. 2—4 Switching Ranges................2—4 Setting the Time .................
  • Page 5 Table of Contents, continued User-Entered Calibration ..............2—15 Overview ................... 2—15 Calibration Procedure Using Prepared Standards ......2—17 Entering a Predetermined Calibration Curve ........2—20 Editing a User-entered or Factory Calibration Curve ......2—22 Exiting the Calibration Routine............2—25 Deleting Calibration Points..............2—25 Retrieving the Factory Calibration.............
  • Page 6 1—6...

  • Page 7: Safety Precautions

    Safety Precautions Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment. Make sure that the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that specified in this manual.

  • Page 8: Use Of Hazard Information

    Safety Precautions, continued wear safety glasses when handling chemicals. Follow instructions carefully. Rinse thoroughly if contact occurs. If you have questions about reagents or procedures, please contact the manufacturer or distributor. Use of Hazard Information WA R N I N G Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 9: Precautionary Labels

    Safety Precautions, continued Precautionary Labels Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary statement. This is the safety alert symbol.
  • Page 10 Safety Precautions, continued 1—10...

  • Page 11: Specifications

    Specifications Lamp: Light emitting diode (LED) Detector: Silicon photodiode Photometric precision: ± 0.0015 Abs Filter bandwidth: 15 nm Wavelength: 528 nm 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 lbs) Sample cells: 1 cm (10 mL), 25 mm (10 mL) Operating conditions: 0 to 50 °C (32 to 122 °F);...
  • Page 12 1—12...
  • Page 13 OPERATION DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité...
  • Page 14 1—14...

  • Page 15: Instrument Keys And Display

    Instrument Keys and Display Description POWER/BACKLIGHT ZERO/SCROLL MENU Numeric Display Range Indicator Range Indicator Menu Indicator Calibration Adjusted Indicator Battery Low Indicator READ/ENTER 1—15...

  • Page 16: Instrument Cap Cord

    Instrument Cap Cord The instrument cap for the Pocket Colorimeter™ II doubles as a light shield. Accurate measurements cannot be obtained unless the sample or blank is covered with the cap. Use the instrument cap cord to secure the cap to the body of the colorimeter and prevent loss of the cap.
  • Page 17 Instrument Cap Cord, continued Figure 1 Attaching the Instrument Cap Cord 1—17...
  • Page 18 1—18...

  • Page 19: Chlorine, Free And Total, Lr

    Chlorine, Free and Total, LR (0.02 to 2.00 mg/L Cl Method 8021 (Free): For water, treated water, estuary water, and sea water Method 8167 (Total): For water, treated water, wastewater, estuary water, and sea water Note: This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
  • Page 20 Cold waters can cause condensation on the sample cells during color development. Examine the sample cells for condensation before reading. Note: The Pocket Colorimeter II is designed to measure solutions contained in sample cells. dip the meter in the sample or pour the sample DO NOT directly into the cell holder.
  • Page 21 Chlorine, Free and Total, LR, continued Using Powder Pillows (USEPA accepted for reporting) Fill a 10-mL cell with Press the Remove the meter cap. POWER to turn the meter on. Place the blank in the cell sample (the blank). Cap. The arrow should indicate holder with the diamond Note:...
  • Page 22 Chlorine, Free and Total, LR, continued Press ZERO/SCROLL Fill a second 10-mL cell Add the contents of one to the 10-mL line with DPD Free Chlorine Powder The display will show sample. Pillow or one DPD Total “- - - -” then “0.00”. Chlorine Powder Pillow to Note: Do not use the same...
  • Page 23 Chlorine, Free and Total, LR, continued Cap and shake gently For free chlorine, wipe For total chlorine, wait for 20 seconds. excess liquid and 3 to 6 minutes after adding fingerprints from the the DPD Total Pillow. After Note: Shaking dissipates sample cell.
  • Page 24 Chlorine, Free and Total, LR, continued Note: Press READ/ENTER If the sample temporarily turns yellow after reagent The instrument will show addition, or if the display shows overrange (page 2—12) “- - - -” followed by the dilute a fresh sample and repeat the test. A slight loss of results in mg/L chlorine.
  • Page 25 Chlorine, Free and Total, LR, continued ® Using AccuVac Ampules (USEPA accepted for reporting) Fill a 10-mL sample Press the Remove the instrument POWER to turn on the meter. cap. Place the blank in the cell with sample (the cell holder, with the The arrow in the display blank).
  • Page 26 Chlorine, Free and Total, LR, continued Press ZERO/SCROLL Fill a DPD Free Chlorine Quickly invert the The display will show Reagent AccuVac® ampule several times to “- - - -” then “0.00”. Ampule or a DPD Total mix. Chlorine Reagent AccuVac Note: Remove the blank.
  • Page 27 Chlorine, Free and Total, LR, continued For free chlorine, wipe For total chlorine, wait Press READ/ENTER excess liquid and 3 to 6 minutes after filling The instrument will show fingerprints from the the AccuVac Ampule. After - - - - followed by the results AccuVac Ampule.
  • Page 28 Chlorine, Free and Total, LR, continued Using the SwifTest™ Dispenser (USEPA accepted for reporting) Fill a 10-mL cell with Press the Remove the meter cap. POWER to turn the meter on. Place the blank in the cell sample (the blank). Cap. The arrow should indicate holder with the diamond Note:...
  • Page 29 Chlorine, Free and Total, LR, continued Press ZERO/SCROLL Fill a second 10-mL cell Use the SwifTest™ to the 10-mL line with Dispenser to add one The display will show sample. dispensation of DPD Free “- - - -” then “0.00”. Chlorine reagent or one Note: Do not use the same...
  • Page 30 Chlorine, Free and Total, LR, continued Cap and shake gently For free chlorine, wipe For total chlorine, wait for 20 seconds. excess liquid and 3 to 6 minutes after adding fingerprints from the the DPD Total reagent. Note: Shaking dissipates sample cell.
  • Page 31 Chlorine, Free and Total, LR, continued Note: Press READ/ENTER If the sample temporarily turns yellow after reagent The instrument will show - - addition, or if the display shows overrange (page 2—12) - - followed by the results in dilute a fresh sample and repeat the test. A slight loss of mg/L chlorine.

  • Page 32: Accuracy Check

    Chlorine, Free and Total, LR, continued Accuracy Check Standard Additions Method 1. Use the ampule breaker to snap the neck off a low range Chlorine Standard Solution Ampule, 20–30 mg/L Cl 2. Use a TenSette® pipet to add 0.1, 0.2, and 0.3 mL of standard to three 10-mL samples.
  • Page 33 A user calibration or a user-prepared chlorine standard may be required by a regulatory official or agency. Two options are available on the Pocket Colorimeter II to meet this requirement. A chlorine standard may be prepared and used to validate the calibration curve using the Standard Calibration Adjust feature (see page 2—13...

  • Page 34: Interferences

    Chlorine, Free and Total, LR, continued Interferences Interfering Interference Levels and Treatments Substance Acidity Greater than 150 mg/L CaCO . May not develop full color or color may fade instantly. Neutralize to pH 6–7 with 1 N Sodium Hydroxide. Determine amount to be added on a separate 10-mL sample, then add the same amount to the sample being tested.
  • Page 35 Chlorine, Free and Total, LR, continued Interfering Interference Levels and Treatments Substance Hardness No effect at less than 1,000 mg/L as CaCO Iodine, I Interferes at all levels Manganese, Adjust sample pH to 6–7. Oxidized Add 3 drops Potassium Iodide (30-g/L) (Cat. No. , Mn ) or 343-32) to a 10-mL sample.

  • Page 36: Method Performance

    Chlorine, Free and Total, LR, continued Interfering Interference Levels and Treatments Substance Monochloramine, Causes a gradual drift to higher readings. When read LR method within 1 minute after reagent addition, 3 mg/L monochloramine causes less than a 0.1 mg/L increase in the reading.

  • Page 37: Chlorine, Free And Total, Hr

    Chlorine, Free and Total, HR (0.1 to 8.0 mg/L Cl For water, treated water, estuary water, and seawater (Free Chlorine) For water, treated waters, wastewater, estuary water, and seawater (Total Chlorine) Note: This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
  • Page 38 Cold waters can cause condensation on the sample cells during color development. Examine the sample cells for condensation before reading. Note: The Pocket Colorimeter II is designed to measure solutions contained in sample cells. dip the meter in the sample or pour the sample DO NOT directly into the cell holder.
  • Page 39 Chlorine, Free and Total, HR, continued Using Powder Pillows Fill a 1-cm/10-mL cell Press the key to Remove the meter cap. POWER turn the meter on. Place the blank into the with sample (the blank). cell holder, with the The arrow should indicate Cap.
  • Page 40 Chlorine, Free and Total, HR, continued Press: ZERO/SCROLL Fill another 1-cm/10-mL Add the contents of two sample cell to the 5-mL line DPD Free Chlorine or two The display will show with sample. Cap. DPD Total Chlorine Powder “- - - -” followed by “0.0”. Pillows to the sample cell Note: Do not use the same...
  • Page 41 Chlorine, Free and Total, HR, continued For free chlorine, wipe For total chlorine, wait Press READ/ENTER excess liquid and fingerprints 3 to 6 minutes after adding The instrument will from the sample cell. Put the the DPD Total Pillows. After show “- - - -”...
  • Page 42 Chlorine, Free and Total, HR, continued Using the SwifTest™ Dispenser Fill a 1-cm/10-mL cell Press the key to Remove the meter cap. POWER turn the meter on. Place the blank into the cell with sample (the blank). holder, with the diamond The arrow should indicate Cap.
  • Page 43 Chlorine, Free and Total, HR, continued Press: ZERO/SCROLL Fill another 1-cm/10-mL Use the SwifTest™ sample cell to the 5-mL line Dispenser to add two The display will show with sample. Cap. dispensations of DPD Free “- - - -” followed by “0.0”. Chlorine reagent or DPD Note: Do not use the same...
  • Page 44 Chlorine, Free and Total, HR, continued For free chlorine, wipe For total chlorine, wait Press READ/ENTER excess liquid and fingerprints 3 to 6 minutes after adding The instrument will show from the sample cell. Put the the DPD Total reagent. After “- - - -”...

  • Page 45: Accuracy Check

    Chlorine, Free and Total, HR, continued Accuracy Check Standard Additions Method a. Use the ampule breaker to snap the neck off a high range Chlorine Standard Solution Ampule, 50–70 mg/L Cl ® b. Use a TenSette pipet to add 0.1, 0.2, and 0.3 mL of standard to three 5-mL samples.
  • Page 46 Chlorine, Free and Total, HR, continued A user calibration or a user-prepared chlorine standard may be required by a regulatory official or agency. Two options are available on the Pocket Colorimeter™ II to meet this requirement. A chlorine standard may be prepared and used to validate the calibration curve using the Standard Calibration Adjust feature (see page 2—13 for more...

  • Page 47: Interferences

    Chlorine, Free and Total, HR, continued Interferences Interfering Substance Interference Levels and Treatments Monochloramine For conventional free chlorine disinfection (beyond the breakpoint), monochloramine concentrations are very low. If monochloramine is present in the sample, its interference in the free chlorine test varies with the temperature, the relative amount of monochloramine to free ammonia, and the time required to do the analysis.
  • Page 48 Chlorine, Free and Total, HR, continued See additional Interferences on page 1—34. 1—48...

  • Page 49: Method Performance

    Chlorine, Free and Total, HR, continued Method Performance Estimated Detection Limit (EDL) = 0.1 mg/L Typical precision (95% confidence interval) = 5.0 ± 0.2 mg/L 1—49...
  • Page 50 Chlorine, Free and Total, HR, continued 1—50...

  • Page 51: Spec√™ Secondary Standards For Dpd Chlorine

    Certificate of Analysis of previously √ purchased Spec standards may no longer be valid. Obtain a new set of standards, or use the Pocket Colorimeter II to assign new values to existing standards. √ The DPD Chlorine Spec Secondary Standards are available to quickly check the repeatability of the Pocket Colorimeter™...

  • Page 52: Using The Spec √ Standards

    Spec√™ Secondary Standards for DPD Chlorine, continued Note: Before proceeding, make sure the instrument is in the low range channel. (LR) See Switching Ranges on page 2—4. √ Using the Spec Standards √ 1. Place the colorless Spec blank into the cell holder with the alignment mark facing the keypad.

  • Page 53: Summary Of Method

    Summary of Method Chlorine can be present in water as free chlorine and as combined chlorine. Both forms can coexist in the same solution and can be determined together as total chlorine. Free chlorine is present as hypochlorous acid or hypochlorite ion.

  • Page 54: Replacement Parts

    Replacement Parts REQUIRED REAGENTS Description Unit Cat. No. Free Chlorine Tests DPD Free Chlorine Reagent Powder Pillows....100/pkg ... 21055-69 ® DPD Free Chlorine Reagent AccuVac Ampules (low range test only) ............25/pkg ... 25020-25 SwifTest™ DPD Free Chlorine Reagent with dispenser 250* tests ... 28023-00 Total Chlorine Tests DPD Total Chlorine Reagent Powder Pillows....100/pkg ...
  • Page 55 Replacement Parts, continued OPTIONAL REAGENTS Description Unit Cat. No. Chlorine Standard Solution, 25–30 mg/L, 2-mL....20/pkg ... 26300-20 Chlorine Standard Solution, 50–75 mg/L, 2-mL....20/pkg ... 14268-20 √ Chlorine Standards, secondary, Spec ™, 0.0, 0.2, 0.8 and 1.5 mg/L ..........4/pkg ... 26353-00 Empty AccuVac®...
  • Page 56 Replacement Parts, continued OPTIONAL APPARATUS Description Unit Cat. No. ® AccuVac Snapper Kit ............each ... 24052-00 Ampule Breaker Kit ..............each ... 24846-00 Batteries, AAA, alkaline ............4/pkg ... 46743-00 Caps for 10-mL sample cells ..........12/pkg ... 24018-12 Cylinder, graduated, 25 mL. glass .........each ..508-40 Cylinder, graduated, 100 mL, glass ........each ..
  • Page 57 Section 2 Instrument Manual 2—1...
  • Page 58 2—2...

  • Page 59: Instrument Operation

    Instrument Operation Key Functions Description Function On/Off/Backlight POWER To turn on the backlight, turn on the instrument, then press and hold the power key until the backlight turns on. Press and hold again to turn off the backlight. This key functions the same in all instrument modes and ranges.

  • Page 60: Menu Selections

    Instrument Operation, continued Description Function Enter/Exit the menu mode MENU Press and hold for approximately 5 seconds to enter user-entered method mode. Menu Selections Press the key to access the menu selections. MENU Switching Ranges 1. Press the key. The display will show “SEL”. A flashing arrow MENU indicates the current range.

  • Page 61: Recalling Stored Measurements

    Instrument Operation, continued 2. Press . The digit to be edited will flash. READ/ENTER 3. Use the key to change the entry, then press ZERO/SCROLL READ/ENTER accept and advance to the next digit. The time is entered in 24-hour format. Recalling Stored Measurements 1.

  • Page 62: Battery Installation

    Instrument Operation, continued Battery Installation Figure 1 on page 2—7 provides an exploded view of battery installation. 1. Unhook the latch and remove the battery compartment cover. The polarities are shown on the battery holder. 2. Place the four batteries provided with the instrument in the holder as indicated and replace the battery compartment cover.
  • Page 63 Instrument Operation, continued Figure 1 Battery Installation 2—7...
  • Page 64 Instrument Operation, continued 2—8...

  • Page 65: Error Codes

    Error Codes When the instrument cannot perform the function initiated by the operator, an error message will appear in the display. Refer to the appropriate message information below to determine what the problem is and how it can be corrected. Resolve error messages in the order that they appear on the display.
  • Page 66 Error Codes, continued 3. E-2 LED Error The LED (light source) is out of regulation. • Replace batteries. • Verify LED lights up (inside the cell holder) when the READ/ENTER key is pressed. ZERO/SCROLL • If the problem persists, contact a Service Center (page 2—37).
  • Page 67 Error Codes, continued • Verify that the concentration of the standard has been entered correctly. • If the problem persists, contact a Service Center (page 2—37). 5. E-6 Abs Error (User mode) Indicates that the absorbance value is invalid, or indicates an attempt to make a curve with less than two points.
  • Page 68 Error Codes, continued 7. E-9 Flash Error The meter is unable to save data. • If the problem persists, contact a Service Center (page 2—37). 8. Underrange—flashing number below stated test range • Verify instrument cap is correctly seated. • Check zero by measuring a blank.

  • Page 69: Standard Calibration Adjust

    Standard Calibration Adjust The Pocket Colorimeter™ II instrument is factory-calibrated and ready for use without user calibration. Use of the factory calibration is recommended unless the user is required to generate a calibration. The Standard Calibration Adjust can be used to meet regulatory requirements. This feature allows the factory default calibration curve to be adjusted with a known standard.
  • Page 70 Standard Calibration Adjust, continued 7. Press to access the Edit function, then press ZERO/SCROLL READ/ENTER begin editing. The digit to be edited will flash. Use the key to ZERO/SCROLL change the entry, then press to accept and advance to the READ/ENTER next digit.

  • Page 71: User-Entered Calibration

    User-Entered Calibration Overview The Pocket Colorimeter™ II will accept a user-prepared calibration curve. The curve can extend from 0 to 2.5 absorbance. A user-prepared calibration curve may be entered into any channel that does not contain a factory-programmed curve. These channels are labeled “abs” on instruments having a single factory calibration or are labeled “1”...
  • Page 72 User-Entered Calibration, continued • CAL—Used to enter and edit standard values and measure absorbance values, or review the existing calibration. • Edit—Used to enter and edit standard values and absorbance values with the keypad or review the existing calibration. Used to enter a predetermined calibration curve.

  • Page 73: Calibration Procedure Using Prepared Standards

    User-Entered Calibration, continued • To select Edit from the User menu, press ZERO/SCROLL READ/ENTER. • Once in the CAL or Edit option, press the key to navigate READ/ENTER through each option. Note: Press to quickly scroll through each option. ZERO/SCROLL Calibration Procedure Using Prepared Standards Note: Deionized water or a reagent blank can be used to zero during the calibration...
  • Page 74 User-Entered Calibration, continued 2. Follow the procedure for the chemical method to be calibrated. Prepare a reagent blank (if needed) and a standard solution. Allow the color to develop fully. 3. Insert the reagent blank or deionized water into the meter and cover with the cap.
  • Page 75 User-Entered Calibration, continued Note: Press the key to move from digit to digit. Use the READ/ENTER ZERO/SCROLL key to change the number. 8. After completing entry of the blank value, press the key. The READ/ENTER display will show “A0”. 9. Insert the reagent blank or deionized water into the cell holder. Cover the blank with the instrument cap.

  • Page 76: Entering A Predetermined Calibration Curve

    User-Entered Calibration, continued 14. Press the key. The meter will measure and display the READ/ENTER absorbance value for S1. 15. The calibration is complete with two points. If additional standards are required, press until “Add” appears on the display. Repeat ZERO/SCROLL steps 11–14...
  • Page 77 User-Entered Calibration, continued 2. Press the key and hold it down until the display shows “USER”, MENU followed by “CAL”. Press to scroll to EDIT. Press ZERO/SCROLL READ/ENTER. 3. In uncalibrated meters or in Abs range, “RES” will appear. Press .

  • Page 78: Editing A User-Entered Or Factory Calibration Curve

    User-Entered Calibration, continued 8. After entering A0, press to accept. “S1” will appear on the READ/ENTER display. 9. Repeat steps through for each standard value and absorbance value pair in the calibration curve Note: After A1 is entered, Add will appear in the display. If additional data pairs are to be entered, press and continue with step 9.
  • Page 79 User-Entered Calibration, continued Note: When editing a factory-calibrated meter or range, RES (resolution) cannot be changed. Note: When RES or S0 appears in the display, press to quickly ZERO/SCROLL scroll to the data to be edited. 3. In uncalibrated meters or in Abs range, “RES” will appear. Press to review the current resolution.
  • Page 80 User-Entered Calibration, continued 7. To edit the absorbance value for S0, press the key to go to READ/ENTER entry mode. Use the key to select the numerical value, then ZERO/SCROLL press the key to accept the entry and advance to the next READ/ENTER decimal place.

  • Page 81: Exiting The Calibration Routine

    User-Entered Calibration, continued Exiting the Calibration Routine Exit the calibration routine by pressing the key to return to measurement MENU mode. The instrument uses the last completed user-entered calibration or the factory calibration if no user-entered calibration has been completed. Deleting Calibration Points 1.

  • Page 82: Retrieving The Factory Calibration

    User-Entered Calibration, continued Note: The minimum number of valid points is two. For example, if five points have been entered, three can be deleted using this feature. 6. Press to return to the measurement mode. MENU Retrieving the Factory Calibration 1.

  • Page 83: Maximum/Minimum Displayed Value

    User-Entered Calibration, continued Maximum/Minimum Displayed Value In meters with absorbance (Abs) ranges, the maximum displayed value and minimum displayed value is related to the value 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”...
  • Page 84 Example 2 For a calibration with the following standards: S0=1.00 S1=2.00 S2=4.00 Maximum Displayed Value 4.00 Minimum Displayed Value 1.00 For Hach-calibrated programs, the maximum and minimum displayed values always equal the factory-calibrated values and cannot be changed. 2—28...

  • Page 85: Certification

    Certification Hach Company certifies this instrument was tested thoroughly, inspected, and found to meet its published specifications when it was shipped from the factory. The Pocket Colorimeter™ II instrument has been tested and is certified as indicated to the following instrumentation standards:...
  • Page 86 Interference-causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. FCC Part 15, Class “A” Limits: Supporting test records from Hach EMC Test Facility, certified compliance by Hach Company. 2—30...
  • Page 87 Certification, continued This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
  • Page 88 Certification, continued 1. Remove power from the Pocket Colorimeter instrument by removing 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.
  • Page 89 GENERAL INFORMATION 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. 2—33...
  • Page 90 2—34...

  • Page 91: How To Order

    Hach Company Monday through Friday P.O. Box 389 (800) 227-HACH (800-227-4224) 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 Purchase order number available) •...
  • Page 92 Specialists 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 distributors. To locate the representative nearest you, send E-mail to intl@hach. com or call (970) 669- 3050. In Canada Hach Instrument Service Centre, Winnipeg, Manitoba, Canada Telephone: (204) 632-5598;...

  • Page 93: Repair Service

    Repair Service Authorization must be obtained from Hach Company before sending any items for repair. Please contact the Hach Service Center serving your location. In the United States: Canada: Hach Company Hach Sales & Service Canada Ltd. 100 Dayton Avenue...

  • Page 94: Warranty

    In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price, excluding original shipping and handling charges.
  • Page 95 • travel fees associated with on-site warranty repair This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed.
  • Page 96 On the basis of strict liability or under any other legal theory, in no event shall Hach Company be liable for any incidental or consequential damages of any kind for breach of warranty or negligence.

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