Hanna Instruments HI 96725 - Manual (Page 3)

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GENERAL DESCRIPTION
ABBREVIATIONS
The HI 96725 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s
years of experience as a manufacturer of analytical instruments. It has the 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
TM 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 waterproof and the lamp and filter units are protected from dust or dirt
by a transparent cup. This makes the instruments fulfill field applications. Display messages aid
the user in routine operation. The meter has an auto-shut off feature that will turn off the
instrument after 10 minutes of non use in
measurement mode or after 1 hour if left in
calibration mode.
The meter uses an exclusive positive-locking system to ensure that the cuvette is in the same
position every time it is placed into the measurement cell. It is designed to fit a cuvette with a
larger neck making it easier to add both sample and reagents. The cuvette is made from special
optical glass to obtain best results.
The HI 96725 meter measures the pH value in the 6.5 to 8.5 range, the free and total chlorine
(Cl
2
) in water samples in the 0.00 to 5.00 mg/L (ppm) range, and cyanuric acid in the 0 to 80
mg/L range. The methods are phenol red for pH, an adaptation of the USEPA Method 330.5 for
wastewater, and Standard Method 4500-Cl G for drinking water for free and total clorine and
an
adaptation of the turbidimetric method for cyanuric acid .
The reagents are in powder and liquid form and supplied in packets or bottles. The amount of
reagent is precisely dosed to ensure the maximum repeatability.
degree Celsius
US Environmental Protection Agency
degree Fahrenheit
milligrams per liter. mg/L is equivalent to ppm (parts per million)
milliliter
millivolts °C :
USEPA :
°F :
mg/L :
mL :
mV :
PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument is not damaged. If any
damage occurred during shipment, please notify your Dealer.
Each HI 96725C Ion Selective Meter is supplied complete with:
• Two Sample Cuvettes and Caps
• CAL CHECK Standard Cuvettes
• One 9V Battery
• Scissors
• Cloth for wiping cuvettes
• Instruction Manual
• 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 its original packing.