Validation & Calibration
Page
47
of 82
9. Wait for the display to update the validation result. If the validation is
successful, the screen will display a “Validation Passed” message and
calibration will not be required. If the validation fails, the screen will
display a “Validation Failed” message and calibration will be required.
Refer to Figure 7.3.
10. Extract the electrode from the bag and wipe it dry with a clean cloth.
11. If the
validation
is successful, go to step 19.
12. If the
validation
fails, the sensor must be calibrated.
13. Go to “Settings” menu. Login. Select “G6130 pH”. Select “Calibration”.
Follow the instruction on screen as shown in Figure 7.7, using buffer
4-7-10 or follow steps 13-21 below.
Figure 7.7: G6130 pH calibration
14.
Calibration procedure:
set the rotary switch ring from position M to the
position that corresponds with the pH buffer number being used
(i.e. 4, 7 or 10). Wait for the red light to flash
3 times
, then place the
sensor electrode tip in the pH buffer.
15. Stir the sensor around and wait for a stable reading. Make sure there is
enough pH buffer to cover the tip of the electrode.
16. The calibration may take several minutes to complete. When the
calibration is successful, the red light will flash
2 times every 5
seconds
.
17. The calibration procedure is finished once calibration has been carried
out for all three pH buffers.
18. Repeat the
validation procedure
(i.e. start again from step 8).
19. Ensure there is some water in the measuring chamber to keep the
electrode tip moist. Top up if needed.
