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MODEL FCL-1056 SECTION 6.0
CALIBRATION
8. Choose Start Auto Cal.
If you wish to change the stability criteria or the pH buffer list from the
default values, choose Setup instead and go to step 14. The default
stability is defined as a less than 0.02 pH change in 10 seconds. The
default buffer list is Standard. See the table in section 6.4.2.
9. Rinse the sensor with water and place it in the first buffer. Be sure the
glass bulb and reference junction are com pletely submerged. Swirl the
sensor. Press ENTER.
10. Once the pH reading meets the stability requirements, the screen
changes to show the nominal pH of the buffer. The nominal pH is the pH
value at 25ºC. The displayed value is not correct, press the up or down
arrow key until the correct value is showing. Press ENTER.
11. Remove the sensor from the first buffer. Rinse with water and place it
in the second buffer. Be sure the glass bulb and reference junction are
completely submerged. Swirl the sensor. Press ENTER
12. Once the pH reading meets the stability requirements, the screen
changes to show the nominal pH of the buffer. If the displayed value is
not correct, press the up or down arrow keys until the correct value is
showing. Press ENTER.
13. If the calibration is successful, the screen at left will be displayed for five
seconds. The display will then return to the screen in step 6.
If the calibration is not successful, the existing calibration data will not be
changed. A screen will appear identifying the error (high slope, low slope,
or offset error). For troubleshooting see section 9.6.
14. If you chose Setup in step 8, the screen at left appears. To make a
change, move the cursor to the desired line and press ENTER. A screen
will appear in which the present setting can be edited. Press ENTER to
store the change.
15. To return to the main display, press MENU then EXIT.
S2 pH Auto Cal
Start Auto Cal
Setup
Start Auto Cal
S2 pH Auto Cal
Place Sensor in
Buffer 1
Press Enter
S2 pH Auto Cal
Place Sensor in
Buffer 2
Press Enter
S2 pH Auto Cal
Slope: 59.16 mV/pH
Offset: 10 mV
S2 pH Auto Cal
07.01 pH
S2 pH Auto Cal
10.01 pH
S2 Setup
Stable Time: 10 sec
Stable Delta: 0.02 pH
Buffer: Standard
Stable Time: