General description – Hanna Instruments HI 88703 User Manual

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Please examine this product carefully. Make sure that the instrument is not damaged. If any
damage occurred during shipment, please notify your local Hanna Office.
Each

HI 88703 Bench Turbidity instrument is supplied complete with:

• Five Sample Cuvettes and Caps
• Calibration Cuvettes for turbidimeter
• Silicone Oil
• Tissue for wiping the cuvettes
• Power cord
• Instruction Manual
• Instrument Quality Certificate

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

defective item must be returned in its original packing with the supplied accessories.

PRELIMINARY EXAMINATION

HI 88703 is a high accuracy, meter that benefits from Hanna’s years of experience as manufacturer
of analytical instruments.
The

HI 88703 is especially designed for water quality measurements, providing reliable and

accurate readings on low turbidity. The

HI 88703 meets and exceeds the requirements of USEPA

and

Standard Methods.

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 lamp, making no need for frequent calibration.
The 25 mm round cuvettes made from special optical glass guarantee the repeatability and consistency
of the measurements.
Turbidity measurements

can be made in the 0.00 to 4000 NTU (Nephelometric Turbidity Units)

range when ratiometric measurements are used and in the 0.00 to 40.0 NTU range when non ratio
method is used. The instrument has an EPA compliance reading mode which rounds the reading to
meet EPA reporting requirements. Alternative EBC and Nephelos measuring units are available.
Depending on the measured sample and needed accuracy, normal measurement, continuous
measurement or signal averaging measurement can be selected.
A two, three, four or five-point calibration could be performed by using the supplied (<0.1, 15,
100, 750 and 2000 NTU) standards. When user prepared standards are used, the calibration points
can be modified.
HI 88703 has complete G.L.P. (Good Laboratory Practice) functions that allows traceability of the
calibration conditions. The last calibration points, time and date can be checked.

GENERAL DESCRIPTION