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Related Manuals for Hanna Instruments HI97711
Summary of Contents for Hanna Instruments HI97711
- Page 1 HI97711 Free Chlorine & Total Chlorine Photometer...
- Page 2 If you need additional technical information, do not hesitate to e‑mail us at tech@hannainst.com or view our worldwide contact list at www.hannainst.com. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA.
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Page 3: Table Of Contents
TABLE OF CONTENTS 1. PRELIMINARY EXAMINATION ................4 2. SAFETY MEASURES ..................5 3. ABBREVIATIONS ................... 5 4. SPECIFICATIONS .................... 6 5. DESCRIPTION ....................7 5.1. GENERAL DESCRIPTION & INTENDED USE ..........7 5.2. FUNCTIONAL DESCRIPTION ..............8 5.3. PRECISION & ACCURACY ............... 9 5.4. -
Page 4: Preliminary Examination
1. PRELIMINARY EXAMINATION Remove the instrument and accessories from the packaging and examine it carefully. For further assistance, please contact your local Hanna Instruments Office or email us at tech@hannainst.com. Each HI97711C is delivered in a rugged carrying case and is supplied with: •... -
Page 5: Safety Measures
2. SAFETY MEASURES • The chemicals contained in the reagent kits may be hazardous if improperly handled. • Read the Safety Data Sheets (SDS) before performing tests. • Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions carefully. •... -
Page 6: Specifications
4. SPECIFICATIONS Range 0.00 to 5.00 mg/L (as Cl Resolution 0.01 mg/L Chlorine Accuracy ±0.03 mg/L ±3% of reading at 25 °C (All Methods) Adaptation of US EPA Method 330.5, DPD Method Colori metric Method Light source Light Emitting Diode Bandpass filter 525 nm Bandpass filter... -
Page 7: Description
With the CAL Check™ functionality, users are able to validate the performance of the instrument at any time and apply a user calibration (if necessary). Hanna Instruments CAL Check cuvettes are made with NIST traceable standards. -
Page 8: Functional Description
5.2. FUNCTIONAL DESCRIPTION 1. ON/OFF power button 3. Liquid Crystal Display (LCD) 5. Indexing mark 2. Keypad 4. Cuvette holder 6. Battery cover Keypad Description The keypad contains 3 direct keys and 3 functional keys with the following functions: Press the functional key to perform the function displayed above it on the LCD. Press and hold to power off/on. -
Page 9: Precision & Accuracy
5.3. PRECISION & ACCURACY Precision is how closely repeated measurements are to one another. Precision is usually expressed as standard deviation (SD). Accuracy is defined as the closeness of a test result to the true value. Although good precision suggests good accuracy, precise results can be inaccurate. The figure explains these definitions. -
Page 10: Optical System
5.5. OPTICAL SYSTEM Instrument Block Diagram The internal reference system (reference detector) of the HI97711 photometer compensates for any drifts due to power fluctuations or ambient temperature changes, providing a stable source of light for your blank (zero) measurement and sample measurement. -
Page 11: General Operations
6. GENERAL OPERATIONS 6.1. METER VALIDATION: CAL CHECK & CALIBRATION Validation of the HI97711 involves verifying the concentration of the certified CAL Check standards. The CAL Check screen guides the user step-by-step through the validation process and user calibration (if necessary). - Page 12 • “OUT OF SPECIFICATION“: A user calibration is not allowed, the measured value is outside of the tolerance window. Check the certified value, expiration date and clean the outside of the cuvette. Repeat the CAL Check procedure. If this error continues, contact your nearest Hanna Instruments Customer Service Center.
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Page 13: Glp
6.2. GLP key to enter the menu. Use the functional keys to select GLP and Press the press Select. Good Laboratory Practice (GLP) shows the date and time of the last user calibration (if available) or factory calibration. To erase the last user calibration and to clear the CAL Check, press Clear and follow the prompts. -
Page 14: General Setup
Press Del All to erase all the logged data. If Del All is pressed, follow the prompt to confirm. Press Yes to delete all logged data, No or the key to return to the log recall. 6.4. GENERAL SETUP key to enter the menu. Use the functional keys to select Setup and Press the press Select. - Page 15 Time Format Option: AM/PM or 24-hour Press the functional key to select the desired time format. Date Format Press Modify to change the date format. Use the functional keys to select the desired key to return to the Setup menu without format.
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Page 16: Reagents & Accessories
Reagents / Accessories and press Select to access a list of reagents and accessories. To exit press the key. 6.6. CONTEXTUAL HELP HI97711 offers an interactive contextual help mode that assists the user at any time. To access the help screen press the key. -
Page 17: Battery Management
The meter will perform an auto-diagnostic test when it is powered on. During this test, ® the Hanna Instruments logo will appear on the LCD. If the auto-diagnostic test was successful, the meter is ready for use. The battery icon on the LCD will indicate the battery status: •... -
Page 18: Photometer
7. PHOTOMETER 7.1. METHOD SELECTION Press Methods when in measurement mode to access the list of methods. Use the functional keys to highlight the desired method then press Select. The selected method will be saved when the instrument is powered off. 7.2. -
Page 19: Cuvette Preparation
7.3. CUVETTE PREPARATION Proper mixing is very important for reproducibility of the measurements. The proper mixing technique for each method is listed in the method procedure. (a) The mixing method is indicated with “shake gently“ using one of the following icons: (b) The mixing method is indicated with “swirl“... - Page 20 Shaking the cuvette can generate bubbles in the sample, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. Do not let the reacted sample stand too long after reagent has been added. For best accuracy, respect the timings described in each method.
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Page 21: Method Procedure
8. METHOD PROCEDURE 8.1. FREE CHLORINE (POWDER REAGENT) Note: Free and Total Chlorine have to be measured separately with fresh unreacted samples, following the related procedures, if both values are desired. REQUIRED REAGENTS Code Description Quantity HI93701-0 Free Chlorine Reagent 1 packet REAGENT SETS HI93701-01... - Page 22 • Remove the cuvette. • Add the content of one packet of HI93701-0 Free Chlorine Reagent. Replace the plastic stopper and the cap. Shake gently for 20 seconds. • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove.
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Page 23: Free Chlorine (Liquid Reagent)
8.2. FREE CHLORINE (LIQUID REAGENT) Note: Free and Total Chlorine have to be measured separately with fresh unreacted samples, following the related procedures, if both values are desired. REQUIRED REAGENTS Code Description Quantity HI93701A-F Free Chlorine Reagent A 3 drops HI93701B-F Free Chlorine Reagent B 3 drops REAGENT SETS... - Page 24 • Remove the cuvette. • To an empty cuvette add 3 drops of ×3 ×3 HI93701A-F Free Chlorine Reagent A and 3 drops of HI93701B-F Free Chlorine Reagent B. • Swirl gently to mix. • Add 10 mL of unreacted sample (up to the 10 mL mark).
- Page 25 INTERFERENCES Interference may be caused by: • Bromine, Iodine, Oxidized forms of Chromium and Manganese, Ozone • Hardness greater than 500 mg/L CaCO , to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent •...
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Page 26: Total Chlorine (Powder Reagent)
8.3. TOTAL CHLORINE (POWDER REAGENT) Note: Free and Total Chlorine have to be measured separately with fresh unreacted samples, following the related procedures, if both values are desired. REQUIRED REAGENTS Code Description Quantity HI93711-0 Total Chlorine Reagent 1 packet REAGENT SETS HI93711-01 Total Chlorine Reagent - 100 tests HI93711-03... - Page 27 • Remove the cuvette. • Add the content of 1 packet of HI93711-0 Total Chlorine Reagent. Replace the plastic stopper and the cap. Shake gently for 20 seconds. • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove.
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Page 28: Total Chlorine (Liquid Reagent)
8.4. TOTAL CHLORINE (LIQUID REAGENT) Note: Free and Total Chlorine have to be measured separately with fresh unreacted samples, following the related procedures, if both values are desired. REQUIRED REAGENTS Code Description Quantity HI93701A-T Total Chlorine Reagent A 3 drops HI93701B-T Total Chlorine Reagent B 3 drops HI93701C-T... - Page 29 • Remove the cuvette. • To an empty cuvette add 3 drops of HI93701A-T Total Chlorine Reagent A, ×3 ×3 ×1 3 drops of HI93701B-T Total Chlorine Reagent B, and 1 drop of HI93701C-T Total Chlorine Reagent C. • Swirl gently to mix. •...
- Page 30 INTERFERENCES Interference may be caused by: • Bromine, Iodine, Oxidized forms of Chromium and Manganese, Ozone • Hardness greater than 500 mg/L CaCO , to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent •...
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Page 31: Warning & Error Descriptions
Ensure that the notch on the cap is positioned securely in the groove before performing any measurements. If the issue persists, please contact Hanna Instruments technical support. The sample and the zero cuvettes are inverted. Swap the cuvettes and repeat the measurement. - Page 32 English is the only available language. Help function is not available. Restart the meter. If the issue persists, please contact Hanna Instruments technical support. Battery level is too low for the meter to function properly. Replace the batteries with new ones.
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Page 33: Battery Replacement
10. BATTERY REPLACEMENT To replace the instrument’s batteries, follow these steps: • Turn the instrument off by pressing and holding the key. • Remove the battery cover by turning it counterclockwise. • Remove the old batteries, replace them with three new 1.5V AA batteries. •... -
Page 34: Certification
Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service is required, contact your local Hanna Instruments Office. If under warranty, report the model number, date of purchase, serial number (engraved on the bottom of the meter) and the nature of the problem. - Page 35 Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
- Page 36 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com MAN97711 Printed in ROMANIA...
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