Hanna Instruments HI 88713 User Manual

Page 2

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 88713 Turbidity bench meter is supplied complete with:

• Six Sample Cuvettes and Caps
• Calibration Cuvettes
• Silicone Oil
• Cloth for wiping the cuvettes
• AC/DC power adapter
• Instruction Manual
• Instrument Quality Certificate

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.

TABLE OF CONTENTS

PRELIMINARY EXAMINATION

Dear Customer,

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

necessary information for correct use of the instrument.

Please read this instruction manual carefully before using the instrument.

If you need additional technical information, do not hesitate to e-mail us at [email protected]

or see the back side of this manual for our worldwide sales and technical service contacts.

This instrument is in compliance with directives.

PRELIMINARY EXAMINATION ................................................................................................................... 3
GENERAL DESCRIPTION ........................................................................................................................... 3
ABBREVIATIONS ..................................................................................................................................... 4
PRINCIPLE OF OPERATION ...................................................................................................................... 4
FUNCTIONAL DESCRIPTION ..................................................................................................................... 6
SPECIFICATIONS ..................................................................................................................................... 8
GENERAL TIPS FOR AN ACCURATE MEASUREMENT .................................................................................... 9
START UP ............................................................................................................................................ 15
RANGE SELECTION ................................................................................................................................ 16
TUTORIAL MODE .................................................................................................................................. 16
HELP MODE .......................................................................................................................................... 17
MEASUREMENT PROCEDURE .................................................................................................................. 17
CALIBRATION PROCEDURE ..................................................................................................................... 20
GOOD LABORATORY PRACTICE (GLP) ...................................................................................................... 26
RESTORE FACTORY CALIBRATION ........................................................................................................... 26
LOG & LOG RECALL ............................................................................................................................... 27
SETUP ................................................................................................................................................. 28
PC INTERFACE ....................................................................................................................................... 30
ACCESSORIES ....................................................................................................................................... 31
WARRANTY ........................................................................................................................................... 31
RECOMMENDATIONS FOR USERS .......................................................................................................... 31

The HI 88713 Turbidity bench meter is a high accuracy, meter that benefits from Hanna’s years of
experience as manufacturer of analytical instruments.
The HI 88713 Turbidity bench meter meets and exceeds the requirements of ISO 7027 standard.
The instrument is based on a state-of-the-art optical system which guarantees accurate results,
assures long term stability and minimizes stray light and color interferences. It also compensates for
variations in intensity of the LED, making no need for frequent calibration.
The 25 mm round cuvettes made from special optical glass guaranties reproductibility and consistency
of the measurements.
Turbidity measurements

can be made in four modes: FNU (Formazin Nephelometric Units) ratio

mode FAU (Formazin Attenuation Units) NTU (Nephelometric Turbidity Units) NTU non-ratio mode.
Alternative EBC (European Brewery Comitee) measuring units are available wen measuring in NTU modes.
Normal measurement, continuous measurement or signal averaging measurement can be selected,
depending on the sample and desired accuracy.
A two, three, four or five-point calibration can be performed by using the supplied (<0.1, 15, 100,
750 FNU and 2000 NTU) standards, user prepared formar in standards can also be used in all
modes. Calibration points can be modified when they are used.

GENERAL DESCRIPTION