4
The
HI 95724
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™ 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 proof and the lamp and filter units are protected from dust or dirt by
a transparent cup. This makes the instruments fulfill field applications. Display codes 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 or after 1 hour if left in the
calibration mode
.
The meter uses an exclusive positive-locking system to ensure that the cuvet is in the same
position every time it is placed into the measurement cell. It is designed to fit a cuvet with a
larger neck making it easier to add both sample and reagents. The cuvet is made from special
optical glass to obtain best results.
The
HI 95724
meter measures the free and total chlorine (Cl
2
) content in water samples in the
0.00 to 5.00 mg/L (ppm) range. The method is an adaption of the USEPA METHOD 330.5 for
wastewater, and Standard Method 4500-Cl G for drinking water.
The reagents are in
liquid form and are supplied in dropper bottles. The amount of reagent is
precisely dosed to ensure the maximum repeatability.
GENERAL DESCRIPTION
ABBREVIATIONS
°C
:
degree Celsius
USEPA
:
US Environmental Protection Agency
°F
:
degree Fahrenheit
mg/L
:
milligrams per liter. mg/L is equivalent to ppm (part per million)
mL
:
milliliter
21
Recommendations for Users
Before using these products, make sure that they are entirely suitable for your specific application and for the environment in
which they are used.
Operation of these instruments may cause unacceptable interferences to other electronic equipments, this requiring the operator
to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance.
To avoid damages or burns, do not put the instrument in microwave oven. For yours and the instrument safety do not use or
store the instrument in hazardous environments.
CE DECLARATION OF CONFORMITY