Proper Use of Minipipette
• Attach the pipette tip.
• Press the button down to the first stop.
• Immerse the pipette tip in the liquid approximately 2-3 mm.
• Slowly let the button move back to the original position, wait 2 seconds.
• Remove the pipette tip from the liquid.
• To dispense the liquid, place the pipette tip on the inside wall of the container.
• Slowly press the button down to the first stop.
• Wait until all of the liquid has been dispensed.
• Press the button down to the second stop, this will allow any remaining liquid
to be dispensed.
Tips for an Accurate Measurement
• Ensure the sample does not contain any debris.
• Whenever the cuvette is placed into the checker, it must be dry
outside and free of fingerprints, oil and dirt.
• Wipe the cuvette thoroughly with
HI731318
microfiber
cleaning cloth or a lint-free cloth prior to insertion.
• Shaking the cuvette can generate bubbles, causing higher
readings. To obtain accurate measurements, remove such
bubbles by swirling or by gently tapping the cuvette.
• Do not let the reacted sample stand too long after reagent has
been added, as accuracy will be affected.
• Discard the sample immediately after the reading has been taken
or the glass might become permanently stained.
Battery Replacement
To save the battery, the checker shuts down after 10 minutes of non-use and
2 minutes after reading.
A fresh battery lasts for a minimum of 5000 measurements. When the battery is
drained, the instrument displays “bAd” then ”bAt”, and turns off.
To replace the battery, follow the next steps:
1. Press and hold the ON/OFF button to turn the checker off.
2. Turn the instrument upside down and use a
screwdriver to unfasten the screw and remove
the battery cover.
3. Remove the old battery, replace it with a new
1.5V AAA battery, inserting the negative end
first.
4. Replace the battery cover, fasten and tighten
the screw.
Accessories
Reagent Sets
HI758-26
Reagents for 25 Marine Calcium tests
Other Accessories
HI758-11
Marine Calcium certified standard kit
HI70436M
Deionized water (230 mL)
HI731315
Glass cuvette and cap for Checker
®
HC colorimeters (2 pcs.)
HI731318
Cloth for wiping cuvettes (4 pcs.)
HI731339P
0.1 mL minipipette
HI731349P
Tip for 0.1 mL minipipette (10 pcs.)
HI740028P
1.5V AAA battery set (12 pcs.)
HI93703-50
Cuvette cleaning solution, 230 mL
Certification
All Hanna Instruments conform to the
CE European Directives.
Disposal of Electrical & Electronic Equipment.
The product
should not be treated as household waste. Instead hand it over
to the appropriate collection point for the recycling of electrical
and electronic equipment which will conserve natural resources.
Disposal of waste batteries.
This product contains batteries, do
not dispose of them with other household waste. Hand them over
to the appropriate collection point for recycling.
Ensuring proper product and battery disposal prevents potential negative
consequences for the environment and human health. For more information,
contact your city, your local household waste disposal service, the place of
purchase or go to
www.hannainst.com
.
Recommendations for Users
Before using this product, make sure it is entirely suitable for your specific
application and for the environment in which it is used. Any variation introduced
by the user to the supplied equipment may degrade the checker’s performance. For
yours and the checker’s safety do not use or store it in hazardous environments.
Warranty
HI758
Checker
®
HC is warranted for a period of one year against defects in
workmanship and materials when used for its 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 checker is to be returned to Hanna Instruments,
first obtain a Returned Goods Authorization (RGA) number from the Technical Service
department and then send it with shipping costs prepaid. When shipping any product,
make sure it is properly packaged for complete protection.
Hanna Instruments reserves the right to modify the design, construction, or
appearance of its products without advance notice.
All rights are reserved. Reproduction in whole or in part is prohibited without the written
consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island,
02895, USA.
IST758 06/20
HI758
Marine Calcium
INSTRUCTION MANUAL
