38
TIT
rA
TION
Pr
OCEDU
rE
• This error message appears when the pump is not working properly. Check the tubing, valve and
syringe. Press
Restart
to try again.
15.1. TIPS FOR AN ACCURATE MEASUREMENT
The instructions listed below should be followed carefully to ensure measurements are conducted with
the highest possible accuracy and precision.
• It is critical that the tip be immersed in the solution being titrated (approximately 0.25 cm).
• Use a clean, volumetric pipette to measure and transfer the necessary volume of sample into the
titration beaker.
• Calibrate the pump prior to each series of titrations.
• Calibrate the pump if the meter is left idle for several hours.
• Analyze the sample immediately after it is obtained.
• For better performance, soak the electrode in
HI70300
storage solution for at least one hour before
use.
15.2. VIEW / DELETE TITRATOR RECORDED DATA
Press
MENU
key then
Recall
to access the titrator logs.
When an external USB storage device is connected, the
Export
key is displayed. It saves the meter
and titrator logs in two text format files on the storage device.
Press
Meter
or
Titrator
to view the respective logs.
The instrument will display a list of all the records stored in the log.
Use the
ARROW
keys to scroll the list of records.
If the saved concentration was out of range, the “<” or “>” symbols are displayed in front of the
reading.