Hanna Instruments HI 84529 - Manual (Page 21)

www. hannainst .com 21 Setup/Installation
Pump
Calibration
Messages
pH
Calibration
Messages
This error message appears when the
pH reading exceeds the acceptable input
limits (pH <-2.00 or pH> 16.00).
This screen appears when the stirrer is
not working properly. Check the stir bar
and beaker content. Press RESTART to try
again.
This error message appears when the
pump is not working properly. Check the
tubing, valve and syringe. Press RESTART
to try again.
pH calibration mode.
When the reading has stabilized, press
CONFIRM to accept the calibration or
CLEAR to restore the default calibration.