Hanna Instruments HI 901 - Manual (Page 34)

4-8
GENERAL OPTIONS
4.5 Beeper
This screen allows the beeper to be enabled (Beeper On) or disabled (Beeper Off).
The beeper will sound after a titration is completed, when an invalid key is pressed or when
a critical error occurs during titration.
4.6 Stirrer
This screen allows the stirrer to be enabled or disabled.