Hanna instruments HI 96711 User Manual

Instruction Manual

HI 96711

Free & Total Chlorine

Fast Tracker

Ion Specific Meter

www.hannainst.com

Dear Customer, Thank you for choosing a Hanna Instruments product. This manual will provide you with the

necessary information for correct use of the meter. Please read this instruction manual carefully before using the instrument. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com

or see the back side of this manual for our worldwide sales and technical service contacts. This instrument is in compliance with

HI 96711 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge.

Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service is required, contact the dealer from whom you purchased the instrument. 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 Technical Service Department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packed for complete protection.

To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

directives.

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

WARRANTY.......................................................................................................................... 2

PRELIMINARY EXAMINATION................................................................................................. 3

GENERAL DESCRIPTION ........................................................................................................ 4

FAST TRACKER FEATURE ....................................................................................................... 4

ABBREVIATIONS .................................................................................................................. 5

SPECIFICATIONS ................................................................................................................... 6

PRECISION AND ACCURACY ................................................................................................... 6

PRINCIPLE OF OPERATION .................................................................................................... 7

FUNCTIONAL DESCRIPTION................................................................................................... 9

GUIDE TO DISPLAY CODES ................................................................................................... 11

GENERAL TIPS FOR AN ACCURATE MEASUREMENT ............................................................... 14

MEASUREMENT PROCEDURE .............................................................................................. 15

VALIDATION PROCEDURE .................................................................................................... 17

CALIBRATION PROCEDURE .................................................................................................. 18

SETUP............................................................................................................................... 20

LOGGING ........................................................................................................................... 23

TAG INSTALLATION ............................................................................................................. 26

BATTERIES REPLACEMENT .................................................................................................. 26

ACCESSORIES .....................................................................................................................27

RECOMMENDATIONS FOR USERS ........................................................................................ 27

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

Please examine this Product carefully. Make sure the instrument is not damaged. If any damage has occurred during the shipment, please notify your dealer.

This HI 96711 Ion Specific Meter is supplied complete with:

• Two Sample Cuvets and Caps

• Three CAL CHECK™ cuvets (HI 95701-11 & HI 95711-11)

• Reagent powder packets (HI 93701-0 & HI 93711-0) (10 packets each)

• Tissue for wiping the cuvets

• Five Tag holders with Tags (HI 920005)

• Batteries (4 pcs.)

• Scissors

• Instruction Manual

• 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 the original packing with the supplied accessories.

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

HI 96711 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as manufacturer of analytical instruments. It has an 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 proof 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. Acoustic signals are used to make the instrument more user-friendly. 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 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 96711 meter measures the free and total chlorine (Cl

0.00 to 5.00 mg/L (ppm) range. The method is an adaptation of the USEPA Method 330.5 for wastewater and Standard Method 4500-Cl G for drinking water.

The reagents are in dosed to ensure the maximum repeatability.

powder form and are supplied in packets. The amount of reagent is precisely

calibration mode

) content in water samples in the

FAST TRACKER FEATUREFAST TRACKER FEATURE

FAST TRACKER FEATURE

FAST TRACKER FEATUREFAST TRACKER FEATURE

Hanna is the first manufacturer of colorimeters that has decided to add the unique T.I.S.-Tag Identification System to our Fast Tracker Ion Specific Meters, to meet the more restrictive needs for traceability of our clients. This means that from now on you can benefit all advantages of this system for your colorimetric measurements and data management.

The system is designed for scientific and industrial applications, or to prove during safety audits and inspections that samples have been truly taken on preestablished locations.

The system is as easy to install as to operate. Just fix the so-called sites that need to be checked often, and with this the T.I.S. is setup. The tag contains a computer chip embedded in a durable stainless steel can. It is designed to withstand the harsh environments, indoors or outdoors. The number of tags that can be installed is practically unlimited, because each tag has a unique identification code.

iButton® tags near your sampling

Immediately after installation of the tags you can start collecting data. Use the Fast Tracker Ion Specific Meter to take measurement and memorize the test result by pressing the Log-on-Demand key. Then, the meter will ask for the tag identification. Simply touching the iButton® with the matching connector on the Fast Tracker does identify and authenticate logging, time and date stamp events.

The power of the Fast Tracker and T.I.S. features resides in the PC application. Download all test data to your PC and use our HI 92000 Windows

compatible application software for further data management. You can sort or filter all your collected test data on different criteria like on a specific sampling location, parameter, date and time intervals, or fix range to filter measured values. The data can be plotted in a graph, exported to other common Windows® applications or printed for reporting purpose.

It is possible to add also new tags later on, thus increasing an already existing database. Each time the PC software recognizes a not already register tag it will ask for a description of the new sampling location.

ABBREVIATIONSABBREVIATIONS

ABBREVIATIONS

ABBREVIATIONSABBREVIATIONS

°C degree Celsius USEPA US Environmental Protection Agency °F degree Fahrenheit LCD Liquid Crystal Display mg/L milligrams per liter. mg/L is equivalent to ppm (parts per million) mL milliliter

RTC Real Time Clock RH Relative Humidity

®®

iButton

is registered Trademark of “MAXIM/DALLAS semiconductor Corp.”

SPECIFICATIONSSPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONSSPECIFICATIONS

Range Free Cl

Total Cl

0.00 to 5.00 mg/L

Resolution 0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 mg/L above 3.50 mg/L Precision ±0.02 mg/L @ 1.00 mg/L Typical EMC Deviation ±0.01 mg/L Light Source Tungsten lamp with narrow band interference filter @ 525 nm Light Detector Silicon Photocell Method Adaptation of the USEPA Method 330.5 and Standard Method

4500-Cl G. The reaction between chlorine and DPD reagent causes a

pink tint in the sample

LOG Memory 99 records Serial Interface RS232 @ 9600 baud rate Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing Power supply 4 x 1.5V AA alkaline batteries Auto Shut-off

After 10 minutes of non-use in After 1 hour of non-use in

calibration mode

measurement mode

Dimensions 216 x 83 x 65 mm (8.5 x 3.26 x 2.55”) Weight 420 g (17 oz.)

REQUIRED REAGENTS Code Unit Description Quantity/test HI 93701-0 Free Cl HI 93711-0 Total Cl

Free Chlorine Reagent 1 packet Total Chlorine Reagent 1 packet

PRECISION AND ACCURACYPRECISION AND ACCURACY

PRECISION AND ACCURACY

PRECISION AND ACCURACYPRECISION AND ACCURACY

Precision is how closely repeated measurements agree with each other. Precision is usually expressed as standard deviation (SD).

Accuracy is defined as the nearness of a test result to the true value.

Although good precision suggests good accuracy, precise results can be inaccurate. The figure explains these definitions. In a laboratory using a standard solution of 1.00 mg/L chlorine and a representative lot of reagent, an operator obtained with a single instrument a standard deviation of 0.02 mg/L.

PRINCIPLE OF OPERATIONPRINCIPLE OF OPERATION

PRINCIPLE OF OPERATION

PRINCIPLE OF OPERATIONPRINCIPLE OF OPERATION

Absorption of light is a typical phenomenon of interaction between electromagnetic radiation and matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, molecules or crystal lattices.

If pure absorption occurs, the fraction of light absorbed depends both on the optical path length through the matter and on the

physical-chemical characteristics of the substance, according to the

Lambert-Beer law:

= ε

–log I/I

c d

Where:

–log I/I

= Absorbance (A)

Io= intensity of incident light beam I = intensity of light beam after absorption

= molar extinction coefficient at wavelength λ

c = molar concentration of the substance d = optical path through the substance

Therefore, the concentration “c” can be calculated from the absorbance of the substance as the other factors are known.

Photometric chemical analysis is based on the possibility to develop an absorbing compound from a specific chemical reaction between sample and reagents. Given that the absorption of a compound strictly depends on the wavelength of the incident light beam, a narrow spectral bandwidth should be selected as well as a proper central wavelength to optimize measurements.

The optical system of Hanna's HI 96 colorimeters series is based on special subminiature tungsten lamps and narrow-band interference filters to guarantee both high performance and reliable results.

Block diagram (optical layout)

A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the cuvet. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity I

or I.

The photoelectric cell collects the radiation I that is not absorbed by the sample and converts it into an electric current, producing a potential in the mV range.

The microprocessor uses this potential to convert the incoming value into the desired measuring unit and to display it on the LCD.

The measurement process is carried out in two phases: first the instrument is zeroed and then the actual measurement is performed.

The cuvet has a very important role because it is an optical element and thus requires particular attention. It is important that both the measurement and the calibration (zeroing) cuvets are optically identical to provide the same measurement conditions. Whenever possible use the same cuvet for both. It is necessary that the surface of the cuvet is clean and not scratched. This to avoid measurement interference due to unwanted reflection and absorption of light. It is recommended not to touch the cuvet walls with hands.

Furthermore, in order to maintain the same conditions during the zeroing and the measuring phases, it is necessary to close the cuvet to prevent any contamination.

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTION

FUNCTIONAL DESCRIPTIONFUNCTIONAL DESCRIPTION

INSTRUMENT DESCRIPTION

1) Serial interface connector.

2) Tag reader connector.

3) Cuvet Holder.

4) Liquid Crystal Display (LCD).

KEYPAD DESCRIPTION

5) CAL CHECK bi-functional key, press shortly to validate the actual calibration, or hold the key

for 3 seconds to enter calibration.

6) RCL/SETUP bi-functional key, press shortly to view log records, or hold the key for 3 seconds to

enter setup.

7) LOG/CFM, to save the log records or to confirm the selected option.

8) READ/TIMER bi-functional key, press shortly to take measurements, or hold the key for 3

seconds to start a pre-programmed countdown prior to measurement.

9) ZERO/ , to zero the instrument prior to measurement or to display the content of a record.

10)

/DEL, to change down the parameter program (P1 or P2), to decrease set values or to

scroll the log and to restore the factory calibration.

11)

, to change up the parameter program (P1 or P2), to increase set values or to scroll the log.

12) ON/OFF, to turn the instrument ON and OFF.

+ 19 hidden pages