•Turn the meter on by pressing the button. All
segments will be displayed. When the display
shows “Add”, “C.1” with “Press” blinking, the
meter is ready.
•Fill cuvette one with 10 mL of distilled water.
This will be your zero.
•Fill cuvette two with 10 mL of unreacted sample.
Note: For samples with low chloride concentration,
it is recomended to rinse the cuvette several
times with unreacted sample before filling it
with 10 mL.
Note: For improved accuracy use a volumetric
pipette to deliver exactly 10 mL of distilled
water and sample to the cuvettes.
•Using the 1 mL syringe, add 0.5 mL of HI 753A-0
Displacing Reagent to each cuvette.
•Replace the cap and invert the cuvette for
approximately 30 seconds.
•Unscrew the cap and use the second 1 mL syringe
add 0.5 mL of HI 753B-0 Complexing Reagent
to each cuvette.
•Replace the cap and invert the cuvette for
approximately 30 seconds.
•Place the first cuvette (disttiled water) into the
meter and close the meter’s cap.
•Press and hold the button until the timer is
displayed on the LCD. Alternatively wait for two
minutes and then press the button. When the
display shows “Add”, “C.2” with “Press” blinking
the meter is zeroed.
•Remove the cuvette.
•Insert the other cuvette with the reacted sample
into the instrument and close the meter’s cap.
•Press the button. The instrument directly displays
the concentration of chlorine in ppm (mg/L). The
meter automatically turns off after 10 minutes.
•It is important that the sample does not contain any debris.
•Whenever the cuvette is placed into the measurement cell, it must be dry
outside, and completely free of fingerprints, oil and dirt. Wipe it thoroughly with
HI 731318 or a lint-free cloth prior to insertion.
•Shaking the cuvette can generate bubbles, causing higher readings. To obtain
accurate measurements, remove bubbles by swirling or by gently tapping the
cuvette.
•Do not let the reacted sample stand for too long after reagent is added, as
accuracy will be affected.
•After the reading it is important to immediately discard the sample, otherwise
the glass might become permanently stained.
REAGENT SETS
HI 753-25 Reagents for 25 Chloride tests
OTHER ACCESSORIES
HI 753-11 Chloride Certified Standard Kit
HI 731318 Cloth for wiping cuvettes (4 pcs.)
HI 731321 Glass cuvettes (4 pcs.)
HI 731225 Black Cuvette Cap for Checker HC (4 pcs.)
HI 740028 1.5V AAA batteries (4 pcs.)
HI 740142P 1 mL graduated syringe (10 pcs.)
HI 740144P Pipette tip for syringes (10 pcs.)
HI 93703-50 Cuvette cleaning solution (230 mL)
Recommendations for Users
Before using this product, make sure that it is entirely suitable for your specific application and for the
environment in which it is used.
Operation of this instrument may cause unacceptable interferences to other electronic equipment, thus
requiring the operator to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instrument’s EMC
performance.
To avoid damage or burns, do not put the instrument in microwave oven. For the safety of you and the
instrument do not use or store the instrument in hazardous environments.
For additional information, contact your
dealer or the nearest
Hanna Customer Service Center.
To find a Hanna Office in your area,
visit our web site:
www.hannainst.com
Hanna Instruments reserves the right to modify the design, construction or
appearance of its products without advance notice.
Battery management
To save the battery, the instrument shuts down after 10 minutes of non-use.
One fresh battery lasts for a minimum of 5000 measurements. When the battery is
dead the instrument will display “bAd” then ”bAt” for 1 second and then turns off.
To restart the instrument, the battery must be replaced with a new one.
To replace the instrument’s battery:
•Turn the instrument off by holding the button until the meter shuts off.
•Turn the instrument upside down and remove the battery cover with a screwdriver.
•Remove the battery from its location and replace it with a new one, inserting the
negative end first.
•Insert the battery cover and replace the screw with a screwdriver.
IST753 07 /15
Measurement procedure: Accessories:Tips for an accurate measurement
