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Manual abstract: user guide HANNA INSTRUMENTS HI 96710C
Detailed instructions for use are in the User's Guide.
[. . . ] Instruction Manual
HI 96710C pH & Chlorine ISM
www. hannainst. com
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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.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] To change the active range follow the procedure: · Turn the meter on by pressing ON/OFF. · After startup, the range identification number is displayed on the secondary LCD as P1, P2 or P3. Code P1 P2 P3 Parameter pH Free Chlorine Total Chlorine
· Press RANGE/GLP/ to change the range. The range can be changed any time when the instrument is in measurement mode. The selected range is memorized and the selection remaines unchanged at power off or when the battery is removed.
MEASUREMENT PROCEDURE
To compensate the meter for the sample turbidity or color, the measurement takes place in two phases. First, the meter is zeroed using the unreacted sample. After the reagents are added the reacted sample is measured. Important note: Free and Total Chlorine have to be measured separately with fresh unreacted samples if both values are requested. · Turn the meter on by pressing ON/OFF. The display briefly shows all tags on.
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· When the beeper sounds briefly and the LCD displays dashes, the meter is ready. The blinking "ZERO" indicates that the instrument needs to be zeroed first. · Pay attention to the selected range. To change the range, simply press RANGE/GLP/ . pH MEASUREMENT · Fill the cuvette with 10 mL of unreacted sample, up to the mark, and replace the cap. · Place the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. · Press ZERO/CFM and the lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. · After a few seconds, the display will show "-0. 0-". The meter is now zeroed and ready for measurement. · Remove the cuvette and add 5 drops of the HI 93710-0 Phenol Red Indicator. · Replace the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. The lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. · The instrument directly displays the pH measured value on the Liquid Crystal Display. [. . . ] 24
BATTERY MANAGEMENT
To save battery, the instrument shuts down after 10 minutes of non-use in measurement mode and after 1 hour of non-use in calibration mode. If a valid measurement was displayed before auto-shut off, the value is displayed when the instrument is switched on. The blinking "ZERO" means that a new zero has to be performed. One fresh battery lasts for around 750 measurements, depending on the light level. [. . . ]
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