•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 one graduated cylinder up to the 25 mL
mark with deionized water. Fill the second
cylinder to the 25 mL mark with sample.
Add the content of one packet of HI 746-0
reagent to each cylinder.
•Close the cylinders. Shake vigorously for
30 seconds.
•Wait 30 seconds, press and hold the button
until the timer is displayed on the LCD (the
display will show a countdown).
•Fill the first cuvette with 10 mL of reacted
deionized water, this is the blank.
•Place the cuvette into the meter and close
the meter’s cap.
•Press the button. When the display shows
“Add”, “C.2” with “Press” blinking the
meter is zeroed.
•Fill the second cuvette with 10 mL of reacted
sample.
•Place the cuvette into the meter, close the
meter’s cap and press the button.
•The instrument directly displays the
concentration of iron in ppb. 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 by 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 746-25 Reagents for 25 Iron Low Range tests
OTHER ACCESSORIES
HI 746-11 Iron LR 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 740220 Glass Cylinders with Cap, 25 mL (2 pcs.)
HI 740028 1.5V AAA batteries (4 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
IST746 08/15
Measurement procedure: Accessories:Tips for an accurate measurement
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.
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