Thermo Fisher Scientific CyberScan pH 5000 - Manual (Page 59)

Instruction Manual CyberScan pH5500/ 5000
It is a well known fact that pH is a temperature dependent
measurement. The factory default setting is 25. if you are taking the
pH of a solution that is not 25 and you are not using an Automatic
Temperature Compensation (ATC)( probe, then you should meter the
temperature value of that solution in order to get the correct pH value.
The current default temperature setting will be displayed when the
Set Default Temperature screen is displayed.
To Set the Default Temperature
1. Access the Set Default Temperature screen from the pH (ion)
Setup screen. The current default temperature is displayed on
the screen.
2. Touch clear to erase the current temperature value.
3. Select the temperature units by touching the appropriate unit key
C (Celsius), F (Fahrenheit) or K (Kelvin).
4. Use the numeric keypad to enter the desired default temperature.
5. Touch enter to accept the temperature setting and return to the
pH (ion) Setup screen.
OR
Touch exit to return to the pH (ion) Setup screen, without making
any changes.
The use of an ATC probe provides a measured temperature value to
the meter and will override any value entered in the default
temperature screen. This measured value will be used by the meter
to make pH calculations.
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