Instruction Manual
HI 95711C
Free & Total Chlorine
ISM
w w w . h a n n a i n s t . c o m
05/06 MAN95711R3
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This Instrument is in |
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w w w . h a n n a i n s t . c o m |
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Compliance with the CE Directives |
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24 |
1 |
Dear Customer,
Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct use of the instrument. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.
This instrument is in compliance with 
directives.
TABLE OF CONTENTS |
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PRELIMINARY EXAMINATION .............................................................................................. |
3 |
GENERAL DESCRIPTION ....................................................................................................... |
4 |
ABBREVIATIONS ................................................................................................................. |
4 |
SPECIFICATIONS ................................................................................................................ |
5 |
PRECISION AND ACCURACY ................................................................................................. |
5 |
PRINCIPLE OF OPERATION .................................................................................................. |
6 |
FUNCTIONAL DESCRIPTION ................................................................................................. |
7 |
GUIDE TO DISPLAY CODES .................................................................................................. |
9 |
GENERAL TIPS FOR AN ACCURATE MEASUREMENT .............................................................. |
11 |
OPERATIONAL GUIDE ........................................................................................................ |
13 |
MEASUREMENT PROCEDURE ............................................................................................. |
14 |
VALIDATION PROCEDURE .................................................................................................. |
16 |
CALIBRATION PROCEDURE ................................................................................................ |
17 |
BATTERY REPLACEMENT .................................................................................................... |
20 |
ACCESSORIES .................................................................................................................. |
20 |
CE DECLARATION OF CONFORMITY ..................................................................................... |
21 |
WARRANTY ...................................................................................................................... |
21 |
HANNA LITERATURE .......................................................................................................... |
22 |
USER NOTES .................................................................................................................... |
23 |
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.
2
USER NOTES
Date |
Parameter Code |
Validation Value |
Passed |
Calibration |
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(mg/L) |
yes |
not |
yes |
not |
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23
HANNA LITERATURE
Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers areas such as:
•Water Treatment
•Process
•Swimming Pools
•Agriculture
•Food
•Laboratory
and many others. New reference material is constantly being added to the library.
For these and other catalogs, handbooks and leaflets contact your dealer or the Hanna Customer Service Center nearest to you. To find the Hanna Office in your vicinity, check our home page at www.hannainst.com.
PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument is not damaged. If any damage occured during shipment, please notify your Dealer.
Each HI 95711 Ion Selective Meter is supplied complete with:
•Two Sample Cuvets and Caps
•9V Battery
•Scissors
•Three CAL CHECK™ Cuvets (HI 95701-11 & HI 95711-11) with Quality Certificate
•Tissue for wiping cuvets
•Instruction Manual and Quick Reference Guide
•Instrument Quality Certificate
•Rigid carrying case
Note:save all packing material until you are sure that the instrument works correctly. Any defective item must be returned in its original packing.
22 |
3 |
GENERAL DESCRIPTION
The HI 95711 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings. All instruments are factory calibrated and the electronic and optical design minimizes the need of frequent calibration.
With the powerful CAL CHECK™ validation function you are able to validate good performance of your instrument at any time. The validation procedure is extremely user friendly. Just use the exclusive Hanna ready-made, NIST traceable standards to verify the performance of the instrument and recalibrate if necessary.
All instruments are splash waterproof and the lamp and filter units are protected from dust or dirt by a transparent cup. This makes the instruments fulfill field applications. Display codes aid the user in routine operation. The meter has an auto-shut off feature that will turn off the instrument after 10 minutes of non use or after 1 hour if left in the calibration mode.
The meter uses an exclusive positive-locking system to ensure that the cuvet is in the same position every time it is placed into the measurement cell. It is designed to fit a cuvet with a larger neck making it easier to add both sample and reagents. The cuvet is made from special optical glass to obtain best results.
The HI 95711 meter measures the free and total chlorine (Cl2) content in water samples in the 0.00 to 5.00 mg/L (ppm) range. The method is an adaption of the USEPA METHOD 330.5 for wastewater, and Standard Method 4500-Cl G for drinking water.
The reagents are in powder form and are supplied in packets. The amount of reagent is precisely dosed to ensure the maximum repeatability.
ABBREVIATIONS
°C: degree Celsius
EPA: US Environmental Protection Agency °F: degree Fahrenheit
mg/L: milligrams per liter. mg/L is equivalent to ppm (part per million) mL: milliliter
4
CE DECLARATION OF CONFORMITY
Recommendations for Users
Before using these products, make sure that they are entirely suitable for your specific application and for the environment in which they are used.
Operation of these instruments may cause unacceptable interferences to other electronic equipments, this requiring the operator to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance.
To avoid damages or burns, do not put the instrument in microwave oven. For yours and the instrument safety do not use or store the instrument in hazardous environments.
WARRANTY
HI 95711 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to the instructions.
This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered.
If service is required, contact your dealer. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred.
If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.
To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase.
HANNA instruments® reserves the right to modify the design, construction and appearance of its products without advance notice.
21
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