MODEL
S2 pH Auto Cal StartStartAutoAutoCalCal
Setup
S2 pH Auto Cal
Place Sensor in
Buffer 1
Press Enter
S2 pH Auto Cal
07.01 pH
S2 pH Auto Cal
Place Sensor in
Buffer 2
Press Enter
S2 pH Auto Cal
10.01 pH
S2 pH Auto Cal
Slope: | 59.16 mV/pH |
Offset: | 10 mV |
S2 Setup
Stable Time: | 10 sec |
Stable Delta: | 0.02 pH |
Buffer: | Standard |
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 completely 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.
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