Hanna Instruments HI 120 - Manual (Page 29)

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Notes: • The custom buffers can be set only with 0.001 pH resolution.
If 0.01 pH resolution is selected during calibration, the
displayed custom buffer value is a rounded one.
• For calibration alarm time out, custom buffers, alarm limits,
start and stop condition items, if pressing CLR while in
changing mode, the selected item will be set to default.
• Printer status and printing language items appear only for
HI 122. The available printing languages are: EnG (English),
ItA (Italiano), ESP (Español) and FrA (Français).
ALARMS SETUP
• Select one of the alarm items. The displayed alarm value will be the
previous set one.
• Press MODE to select the range for alarm. The corresponding range
tag will blink.
• Press CAL to enter in changing mode. Set the new value using the
ARROW or the numerical keys.
Notes: • Press MODE while in changing mode to select another resolution
if the displayed value allows it (e.g. if 199.9 is displayed, by
pressing MODE the value will change to 1999; if 19.9 is
displayed, nothing will happen if pressing MODE).
• Pressing CLR the displayed value will be set to default (“no”).
The first displayed value after “no”, if one of the ARROW keys
is pressed, will be 7.00 pH or 0.0 mV, in according with the
selected range.
• Press NUM from the left keyboard if you want to change the
value using the numerical keys. The “2nd” tag will blink.
• Press CLR to delete the last digit.
• Press MODE to select another resolution (see above).
• Press NUM or CFM to confirm the introduced value from the
numerical keyboard.
When in normal measurement mode:
• If only “AL.LO” item is set, the instrument will beep when the reading
is below alarm low value.
• If only “AL.HI” item is set, the instrument will beep when the reading
is above alarm high value.
• If both alarms are set, the instrument will beep when the reading is above
alarm high value or below alarm low value.
Note: If “AL.HI” item is less than or equal to “AL.LO” item, “WRONG” tag
will blink.