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NOTE:
ALWAYS CALIBRATE
WITH pH 7.00 FIRST
Press ABORT if pH 7.00 has
not been done or press NEXT
to continue.
D.
How to Calibrate the pH Sensor Module
GENERAL INFORMATION
The pH calibration procedure is identical for each of the pH buffer standards. Described
below is the procedure for the 7.00 pH standard, since this is the one commonly used. If
you desire to calibrate the sensor module with 4.00 buffer solution, a 7.00 pH calibration
should always be done first, then 4.00 may be performed.
PROCEDURE
DISPLAY
· 7.00 or 4.00 pH buffer Solution
· Sample Kit or clean beaker
· Make sure a pH sensor module is attached.
First, select the pH sensor module on the MAIN
screen using the
key. Press MENU and select
“CALIBRATION”. Select “7.00 pH” from the next
screen.
NOTE:
If 4.00 pH is selected, the following screen will
appear: Press NEXT to continue.
Step 1
- Remove pH buffer solution bottle from
sensor. Place about 50 ml of buffer solution in the
sample tray or beaker and place the pH sensor
module in the outer sensor holder and allow to
stabilize. Press NEXT to continue.
Step 2
- Remove the pH sensor from the sample tray
and discard the rinse buffer solution. Press NEXT to
continue.
7.00 pH
4.00 pH
SET FACTORY DEFAULTS
CALIBRATION HELP
STEP 1
pH 7.00 CAL
PLACE pH PROBE IN
RINSE BUFFER
Press NEXT to continue.
FACTORY pH VALUE
x.xx pH
STEP 2
pH 7.00 CAL
REMOVE pH PROBE
DISCARD RINSE BUFFER
Press NEXT to continue.
