Maintenance, peripherals – Hanna Instruments HI 901 User Manual
Page 116
9-6
MAINTENANCE, PERIPHERALS
Clean both the piston and the syringe with appropriate solvents, then with ethylic
alcohol and then rinse them several times with deionized water, titrant solvent or
just titrant.
Remove the excess liquid.
Warning: Avoid contact with the titrant with bare hands.
Avoid spilling titrant in the working place.
Clean the external side of the syringe and piston to remove aggressive chemicals.
Do not touch the Teflon part of the piston and internal walls of the burette with
bare hands or greasy materials.
Reinsert the piston into the syringe.
Reinsert the syringe by screwing it in the valve with your fingers.
Reinsert the protective cap to the bottom of the burette assembly. Carefully position
the cap into the burette.
Slide the burette into the burette stand. Notice the position of the piston shaft to the
pump couple.
A final rinse with titrant is recommended if the cleaning is followed by a titration.