MODEL 54eA
10.02pH
Autocal buffer 2
Abort Cont
10.02pH
Buf2 done: 10.01 @25°C
Abort Cont
SECTION 13.0
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 é or ê 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 ê key once to move the cursor to "Diagnostic variables". Press Enter (F4). Press the ê key six times to scroll through the list of diagnostic variables. Note that the pH slope is at 25°C.
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 16.9 for assis- tance.
75
