JENCO 6309 POT, Operation Manual

Page: 14 / 35

14
b. USER SETTING
You will only see this page if the unit is
not password locked. This page is just
a
WARNING , informing that all relays
and analog output are frozen, and that
you can calibrate and change the
settings.
NOTE: FROZEN MEANS ALL THE RELAYS AND THE ANALOG
OUT WILL MAINTAIN THEIR LAST STATE UNTIL THE USER
RETURNS TO MAIN DISPLAY MODE.
c. pH CALIBRATION
ATC TEMP . – the current
temperature of the solution.
1.
BUFFER 1 - in this option you
can select which buffer to use for
the
standardization calibration.
You can choose 7.00 pH or
6.86 pH by using the
[

]
and
[

/ pH-Recal .] keys and pressing
the [

] key to save your choice.
2. BUFFER 2 - after you selected the buffer 1 this option will let you
select the second buffer to use to calibrate the slope. You can
choose 4.00 pH, 4.01 pH, 9.18 pH or 10.01 pH by using
[

] and
[

/ pH-Recal .] keys and pressing the [

] to save your choice.
3. STAND - this is the actual pH calibration process, this line will
display the buffer to be used for STAND (OFFSET) calibration ,
depending on the choice you made on
BUFFER 1 . (See Step by
step pH Calibration.)