13
is now ready for a fresh calibration.
4.
Connect the ISE to the BNC connector of the meter. “MAN”
and “AUTO” icons will lit up. The "CAL" icon will begin to
flash.
5.
Rinse the ISE in distilled water and immerse it in the first
standard solution. Press and hold
“Stand”
for 2 seconds to
calibrate. The “CAL” & “AUTO” icons will lit up. The main
display will show “- - - -”, the secondary display will show
corresponding ion calibration value (0.10, 1.0, 10, 100) . Use
“Up”
or
“Down”
to select the first point calibration value.
6.
Press
“Slope/Enter”
. The mV value of the standard solution
will appear on the main display. The “Wait” icon will flash until
the meter detects a stable value. When the “Wait” icon
disappears and the ion calibration value on the secondary
screen moves up to the next value, the first point calibration is
complete and the meter is ready for the second point
calibration.
7.
Rinse the ISE in distilled water and immerse it in the second
standard solution. Press
“Slope/Enter”
. The “Wait” icon will
flash until the meter detects a stable reading. When the “Wait”
icon disappears and the ion calibration value on the secondary
screen moves up to the next value, the second point
calibration is complete and the meter is ready for the third point
calibration.
8.
To continue with the third, the fourth and the fifth point
calibration, repeat step 7. Press
“Mode”
to exit calibration
mode when the desired calibration points are completed.
[
Note:
The slope (mV difference between two consecutive
points) is 15 to 90 mV.]
b.
Calibration in the ION-NON-AUTOLOCK mode.
1.
Turn the unit on. In ION-NON-AUTOLOCK mode, press the
“Set”
to enter the calibration selection screen. Use
“Up”
or
“Down”
to select 2 to 5 point calibration.
2.
Press
“Slope/Enter”
to save and enter the monovalent ion or
divalent ion selection screen. Use
“Up”
or
“Down”
key to
select.
3.
Press
“Slope/Enter”
to enter the hold/clear selection screen.
Use
“Up”
or
“Down”
to select “CLr”. The meter will clear all
previously stored calibrated values and is now ready for fresh
calibration.
4.
Connect the ISE to the BNC connector of the unit. The “MAN”
