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Manual abstract: user guide HANNA INSTRUMENTS HI 95724
Detailed instructions for use are in the User's Guide.
[. . . ] Instruction Manual
HI 95724C Free & Total Chlorine ISM
MAN95724C 01/04
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www. hannainst. com
This Instrument is in Compliance with the CE Directives
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Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct use of the instrument. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. [. . . ] The microprocessor uses this potential to convert the incoming value into the desired measuring unit and to display it on the LCD. The measurement process is carried out in two phases: first the meter is zeroed and then the actual measurement is performed. The cuvet has a very important role because it is an optical element and thus requires particular attention. It is important that both the measurement and the calibration (zeroing) cuvets are optically identical to provide the same measurement conditions. Whenever possible use the same cuvet for both. It is necessary that the surface of the cuvet is clean and not scratched. 8 17
1) four digit main display area. 2) CAL: appears when the instrument operates in the calibration mode. 3) the Month and Day icons appear above the number of month and day when a date is displayed. 4) the blinking "Battery" icon appears when the battery voltage is getting low.
Note: at this point it is possible to reset the instrument to restore FACTORY CALIBRATION, see instructions page 17. · Place the CAL CHECKTM Standard Cuvet A into the holder and ensure that the notch on the cap is positioned securely into the groove.
GUIDE TO DISPLAY CODES
This prompt appears for 1 second each time the instrument is turned on. The parameter code "724" indicates that the meter is in a ready state and zeroing can be performed. This flashing prompt appears each time the meter is performing a measurement. This indicates that the meter is in a zeroed state and measurement can be performed. The blinking "BAT" indicates that the battery voltage is getting low and the battery needs to be replaced. This indicates that the battery is dead and must be replaced. Once this indication is displayed, the meter will lock up. "Configuration": this indicates that the meter has lost its configuration. Contact your dealer or the nearest Hanna Customer Service Center. CALIBRATION MODE MESSAGES The date of the last calibration appears on the LCD each time the calibration mode is entered. If calibration is performed for the first time, "F. CAL" appears. This indicates that the factory calibration is selected.
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· Press ZERO and "SIP" will blink on the display. [. . . ] For accurate Validation and Calibration, please perform test at room temperature: 18 to 25°C (64. 5 to 77. 0°F).
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· Turn the meter on by pressing ON/OFF. · When the LCD displays "724", it is ready.
· It is important that the sample does not contain any debris. · In order to avoid reagent leaking and to obtain more accurate measurements, it s recommended to close the cuvet first with the supplied HDPE plastic stopper and then with the black cap. · Each time the cuvet is used, the cap must be tightened to the same degree.
· Place the CAL CHECKTM Standard Cuvet A into the holder and ensure that the notch on the cap is positioned securely into the groove.
· Press ZERO and "SIP" will blink on the display. [. . . ]
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