HI772
Marine Alkalinity
INSTRUCTION MANUAL
• 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
HI731318
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.
HI772
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.
Tips for an Accurate Measurement
Battery Management
IST772 07/18
Reagent sets
HI772-26
Reagents for 25 Marine Alkalinity tests, 1 syringe and 1 tip
Other Accessories
HI772-11
Marine Alkalinity Certified Standard Kit
HI731318
Cloth for wiping cuvettes (4 pcs.)
HI731315
Glass Cuvettes and Caps for Checker
®
HC Colorimeters (2 pcs.)
HI740028P
1.5V AAA batteries (12 pcs.)
HI740142P
1 mL graduated syringe (10 pcs.)
HI93703-50
Cuvette cleaning solution (230 mL)
Accessories
Warranty
HI772
is warranted for a period of one year after date of purchase against defects in
workmanship and materials when used for their intended purpose and maintained according
to instructions. This warranty is limited to repair or replacement free of charge. Damage due
to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service
is required, contact your local Hanna Instruments Office. If under warranty, report the model
number, date of purchase, serial number and the nature of the problem. If the repair is not
covered by the warranty, you will be notified of the charges incurred. If the instrument is to
be returned to Hanna Instruments, first obtain a Return Goods Authorization number from the
Technical Service department and then send it with shipping costs prepaid. When shipping any
instrument, make sure it is properly packed for complete protection.
Recommendations for Users
Before using Hanna Instruments products, make sure that they are entirely suitable for your
specific application and for the environment in which they are used. Any variation introduced
by the user to the supplied equipment may degrade the meter’s performance. For yours and
the instrument safety do not use or store the instrument in hazardous environments.