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MODEL 54eA SECTION 12.0
CALIBRATION - pH
9. Remove the sensor from buffer 1, rinse it with water, and place it in
buffer 2. Swirl the sensor. Press Cont (F3). "Wait" flashes until the
reading is stable.
10. The screen at left appears once the reading is stable. Use the or
key to change the reading to the nominal pH of the buffer. The
nominal pH is the pH of the buffer at 25°C. Press Cont (F3).
11. Press Exit (F1) four times to return to the main display.
NOTE
If Hold was activated during calibration, “Hold Mode Activated”
will continue to flash in the main display. Return the sensor to
normal and deactivate Hold. Refer to Section 5.6, step 11.
12. To view the slope and offset press any key to enter the main menu.
Press the key once to move the cursor to "Diagnostic variables".
Press Enter (F4). Press the key six times to scroll through the list
of diagnostic variables. Note that the pH slope is at 25°C.
10.02 pH
Buf2 done: 10.01
@25°C
Abort Cont
10.02 pH
Autocal buffer 2
Abort Cont
NOTE
During calibration, ERROR and WARNING messages may appear. If an ERROR message appears, press
Exit (F1) to leave and return to the previous screen. If a WARNING message appears, press Cont (F3) to
continue the calibration or press Abort (F1) to leave. Continuing the calibration after a warning message
appears may cause substantial errors in the subsequent measurement. Refer to Section 15.9 for assis-
tance.
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