4
HI 98703
is a high accuracy EPA compliant portable turbidimeter that benefits from Hanna’s years of
experience as manufacturer of analytical instruments. The
HI 98703
meets and exceeds the requirements
of the
USEPA Method 180.1
for wastewater and
Standard Method 2130 B
for drinking water.
The instrument is specially designed for water quality measurements, providing a reliable and
accurate reading on low turbidity values.
The
HI 98703
instrument measures the turbidity of a sample in the 0.00 to 1000 NTU (Nephelometric
Turbidity Units) range. An effective algorithm calculates and converts the readings in NTU.
The instrument has an EPA compliance reading mode which rounds the reading to meet EPA reporting
requirements.
Depending on the measured probe and needed accuracy, normal measurement, continuous
measurement, or signal averaging measurement can be selected.
The instrument is based on a state-of-the-art optical system, which guarantees accurate results. The
optical system, consisting in a tungsten filament lamp and two detectors (scattered and transmitted),
assures long term stability and minimizes stray light and color interferences. It also compensates for
variations in intensity of the lamp, minimizing the need of frequent calibration.
The 25 mm round cuvettes made from special optical glass guarantee the repeatability and consistency
of the measurements.
Calibration can be easily performed at any time in two, three ot four points (<0.1, 15, 100 and
750 NTU-adjustable calibration points), using the supplied or user prepared standards.
HI 98703
has complete GLP (Good Laboratory Practice) functions that allows traceability of the calibration
conditions. The last calibration points, time and date can be checked at any time by a single touch.
HI 98703
has a very user-friendly interface, with an easy to read, large LCD (Liquid Crystal Display).
The displayed codes guide the user step by step with routine operation and through calibration.
Confirmation and acoustic signals help the user during instrument operation.
The
HI 98703
turbidimeter is a truly splash proof portable instrument. It is supplied with a rigid
carrying case that offers protection for harsh environments.
One battery set is enough for at least 1500 measurements. The battery charging percentage and low
battery condition are displayed on the LCD to avoid unexpected battery failure. In order to save the
battery life, the instrument has an auto shut-off feature and will turn off after 15 minutes of non-use.
In addition, the instrument is equipped with backlight and the current time is continuously displayed
on the LCD.
The instrument also provides a logging function. Up to 200 measurements can be stored in the
internal memory and consulted at any time. Data can be downloaded to a PC for storing or further
analysis through one of the two available ports: RS232 or USB.
For advanced field applications, the
HI 98703
turbidimeter is equipped with Tag Identification
System (TIS) that makes data collecting and management simpler than ever.
GENERAL DESCRIPTION
GENERAL DESCRIPTION
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.com
1.800.561.8187
