Hach sensION3, Instruction Manual, Page: 27 / 52

27
SECTION 3,
continued
5. Once a number key is pressed, the next digit place holder will
flash. Continue to enter the desired numbers until all four
places have a value. Press
ENTER
.If an number entry error
occurs, start over by pressing
SETUP/CE
.
6. When the desired option is selected, press
EXIT
to return to
the reading mode.
3.1.8 Setting the Year
1. From the reading mode, press
SETUP
.
2. The
Setup
icon and the number
1 (flashing)
will be displayed.
Press the up arrow until the Setup number is
8
. The display
will show
Date
and
a year
in the main display.
3. Change the year by pressing
ENTER
. The main display will
change to
_ _ _ _,
with the left place holder flashing. The
numerical keypad will become active.
4. Press the desired number key for the left most digit. Once a
number key is pressed, the next digit place holder will flash.
Continue to enter the desired numbers until all four places
have a value. Press
ENTER
to accept the value. If a number
entry error occurs, start over by pressing
SETUP/CE
.
5. When the desired option is selected, press
EXIT
to return to
the reading mode.
3.2 Calibrating the Meter
The sens
ion
3 pH Meter is designed to auto-recognize and
calibrate on 4.01, 6.86 or 7.00, and 10.01 pH buffers. Calibrating
with buffers that have pH values other than these requires a
modified procedure.
Hach recommends a daily two-point calibration using buffers that
bracket the sample pH. This will verify the electrode is working
properly and allow the slope value to be stored.