Hanna Instruments HI97721 Manuel utilisateur

INSTRUCTION MANUAL

HI97721

Iron High Range

Photometer

Thank you for choosing a Hanna Instruments product.

Please read this instruction manual carefully before using the

instrument.

This manual will provide you with the necessary information

for correct use of the instrument, as well as a precise idea of its

versatility.

If you need additional technical information, do not hesitate to

e‑mail us at [email protected] or view our worldwide contact

list at www.hannainst.com.

Dear

Customer,

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.

TABLE OF CONTENTS

1. PRELIMINARY EXAMINATION ..........................................................................4

2. SAFETY MEASURES........................................................................................4

3. SPECIFICATIONS............................................................................................5

4. ABBREVIATIONS ...........................................................................................5

5. DESCRIPTION................................................................................................6

5.1. GENERAL DESCRIPTION AND INTENDED USE ...........................................6

5.2. FUNCTIONAL DESCRIPTION ....................................................................7

5.3. PRECISION AND ACCURACY ....................................................................8

5.4. PRINCIPLE OF OPERATION .....................................................................8

5.5. OPTICAL SYSTEM...................................................................................9

6. GENERAL OPERATIONS.................................................................................10

6.1. METER VALIDATION: CAL CHECK/CALIBRATION....................................... 10

6.2. GLP....................................................................................................11

6.3. LOGGING DATA/LOG RECALL ................................................................. 11

6.4. GENERAL SETUP.................................................................................. 12

6.5. REAGENTS/ACCESSORIES..................................................................... 15

6.6. CONTEXTUAL HELP ..............................................................................15

6.7. BATTERY MANAGEMENT.......................................................................15

7. PHOTOMETER..............................................................................................16

7.1. PROPER USE OF POWDER PACKET ........................................................ 16

7.2. CUVETTE PREPARATION ...................................................................... 16

8. METHOD PROCEDURE ..................................................................................18

9. ERROR DESCRIPTIONS .................................................................................20

10. BATTERY REPLACEMENT ............................................................................. 21

11. ACCESSORIES............................................................................................ 21

11.1. REAGENT SETS..................................................................................21

11.2. OTHER ACCESSORIES......................................................................... 21

CERTIFICATION.................................................................................................22

RECOMMENDATIONS FOR USERS.......................................................................22

WARRANTY ......................................................................................................23

PRELIMINARY EXAMINATION

1. PRELIMINARY EXAMINATION

Remove the instrument and accessories from the packaging and examine it carefully to

make sure that no damage has occurred during shipping. Notify your nearest Hanna

Customer Service Center if damage is observed.

Each HI97721C is delivered in a rugged carrying case and is supplied with:

• Sample cuvette (2 pcs.)

• Sample cuvette cap (2 pcs.)

• Plastic stopper (2 pcs.)

• A ZERO - CAL Check Cuvette A

• HI97721B - CAL Check Cuvette B for Iron HR

• Cloth for wiping cuvettes

• Scissors

• 1.5V AA Alkaline batteries

• Instruction manual

• Meter quality certificate

• CAL Check standard certificate

Each HI97721 is delivered in a cardboard box and is supplied with:

• Sample cuvette (2 pcs.)

• Sample cuvette cap (2 pcs.)

• Plastic stopper (2 pcs.)

• 1.5V AA Alkaline batteries

• Instruction manual

• Meter quality certificate

Note: Save all packing material until you are sure that the instrument works correctly.

Any damaged or defective item must be returned in its original packing material with

the supplied accessories.

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.

• Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with

plenty of water. If reagent contacts skin, rinse the affected area thoroughly with

water. Avoid breathing released vapors.

• Waste disposal: For proper disposal of reagent kits and reacted samples, contact

a licensed waste disposal provider.

SAFETY MEASURES

SPECIFICATIONS

3. SPECIFICATIONS

Iron High

Range

Range 0.00 to 5.00 mg/L (as Fe)

Resolution 0.01 mg/L

Accuracy ±0.04 mg/L ±2% of reading at 25 °C

Method

Adaptation of Standard Methods for the

Examination of Water and Wastewater, 23rd

Edition, 3500-Fe B, Phenanthroline Method

Measurement

System

Light source Light Emitting Diode

Bandpass filter 525 nm

Bandpass filter

bandwidth 8 nm

Bandpass filter

wavelength accuracy ±1.0 nm

Light detector Silicon photocell

Cuvette type Round 24.6 mm diameter (22 mm inside)

Additional

Specifications

Auto logging 50 readings

Display 128 x 64 pixel B/W LCD with backlight

Auto-off After 15 minutes of inactivity

(30 minutes before a READ measurement)

Battery type 1.5 V AA Alkaline (3 pcs.)

Battery life > 800 measurements (without backlight)

Environment 0 to 50 °C (32 to 122 °F);

0 to 100% RH, non-serviceable

Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")

Weight (with batteries) 380 g (13.4 oz.)

Case ingress protection

rating IP67, floating case

4. ABBREVIATIONS

mg/L milligrams per liter (ppm)

mL milliliter

°C degree Celsius

°F degree Fahrenheit

LED Light Emitting Diode

HDPE High Density Polyethylene

GLP Good Laboratory Practice

NIST National Institute of Standards and Technology

ABBREVIATIONS

DESCRIPTION

5. DESCRIPTION

5.1. GENERAL DESCRIPTION AND INTENDED USE

The HI97721 is an auto-diagnostic portable meter that benefits from Hanna’s years

of experience as a manufacturer of analytical instruments. It has an advanced optical

system that uses a Light Emitting Diode (LED) and a narrow band interference filter that

allows for accurate and repeatable readings.

The optical system is sealed from outside dust, dirt and water. The meter uses an

exclusive positive-locking system to ensure that the cuvettes are placed into the holder

in the same position every time.

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’s CAL Check

cuvettes are made with NIST traceable standards.

The built-in tutorial mode guides users step-by-step through the measurement

process. It includes all steps required for sample preparation, the required reagents

and quantities.

The HI97721 meter measures iron content in water samples in the 0.00 to 5.00 mg/L

(ppm) range. The method is an adaptation of Standard Methods for the Examination of

Water and Wastewater, 23rd Edition, 3500-Fe B, Phenanthroline Method.

The HI97721 photometer is a compact and versatile meter suitable for field or bench

measurements, featuring a:

• Sophisticated optical system

• Meter validation using certified CAL Check cuvettes

• Tutorial mode guides the user step-by-step

• Auto logging

• Waterproof IP67, floating case

• GLP features

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 keys to perform the function displayed above them on the LCD.

Press and hold to power off/on. Press briefly to return to the previous screen.

Press to access the menu screen.

Press to display the context-sensitive help menu.

DESCRIPTION

5.3. PRECISION AND 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.

For each method, the accuracy is expressed in the related measurement section.

5.4. PRINCIPLE 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:

-log I/Io= elc d

A = elc d

Io= intensity of incident light beam

I= intensity of light beam after absorption

el= molar extinction coefficient at wavelength l

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 constant.

Photometric chemical analysis is based on specific chemical reactions between a

sample and reagent to produce a light-absorbing compound.

DESCRIPTION

5.5. OPTICAL SYSTEM

Instrument Block Diagram

Theinternalreference system (referencedetector)of the HI97721 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.

LED light sources offer superior performance compared to tungsten lamps. LEDs have

a much higher luminous efficiency, providing more light while using less power. They

also produce little heat, which could otherwise affect electronic stability. LEDs are

available in a wide array of wavelengths, whereas tungsten lamps have poor blue/

violet light output.

Improved optical filters ensure greater wavelength accuracy and allow a brighter,

stronger signal to be received. The end result is higher measurement stability and less

wavelength error.

A focusing lens collects all of the light that exits the cuvette, eliminating errors from

cuvette imperfections and scratches, eliminating the need to index the cuvette.

GENERAL OPERATIONS

6. GENERAL OPERATIONS

6.1. METER VALIDATION: CAL CHECK/CALIBRATION

Validation of the HI97721 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).

WARNING: Do not use any solutions/standards other than the Hanna®CAL Check

Standards. For accurate validation and calibration results, please perform these at

room temperature (18 to 25 °C; 64.5 to 77.0 °F).

Note: CAL Check Standards will not read the specified value in measurement mode.

Protect the CAL Check cuvettes from direct sunlight by keeping them in the original

packing. Store between +5 °C and +30 °C (41 - 86 °F), do not freeze.

To perform a CAL Check:

1. Press CAL Check key from measurement mode. The

“Not Available“ message or the date/time and

status of the last CAL Check will be displayed on the

screen.

2. Press the Check key to start a new CAL Check. Press

the key at any time to abort the validation

process.

3. Use the keys to enter the certificate value

of the calibration standard found on the CAL Check

Standard Certificate. Press Next to continue.

Note: This value will be saved in the instrument for future validation. If a new set of

calibration standards is obtained please update the certificate value.

4. Insert the A ZERO CAL Check Cuvette A then press

Next to continue. The “Please Wait...“ message

will be displayed during the measurement.

5. Insert the HI97721B CAL Check Cuvette B then

press Next to continue. The “Please Wait...“

message will be displayed during the measurement.

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