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mEASurEmENT & ELECTrODE SETuP mENu
Temperature Source
Menu is used to select between the physical temperature input source (Automatic) or to enter the
sample temperature value manually (Manual).
• For Automatic selection, a temperature probe must be plugged and placed in the measured sample.
ATC will be displayed next to the temperature measurement on the pH display. The mV/Rel. mV
display will indicate temperature value.
• For Manual selection (or the temperature probe is not plugged in), MTC will be displayed next to
the temperature measurement on the pH display. Manual will be displayed next to the temperature
measurement on the mV/Rel. mV display. The sample’ s temperature will need to be entered.
Temperature Unit
Users select desired temperature unit (Celsius, Fahrenheit, or Kelvin degrees).
Manual Temperature
To input manual temperature (Manual selected under Temperature Source, or with no temperature probe):
1. Select the desired temperature unit.
2. Tap on Manual Temperature field. Use the on-screen keypad to enter sample’s temperature.
Isopotential Point
Options: 4.010 pH, 7.000 pH
To input Isopotential point, tap to select desired isopotential point (pH measurement only).
Note: Isopotential point is the point at which temperature has no effect on pH readings.
Unless noted with electrode, use 7.000 pH.
10.3. CALIBRATION
Options: Last Calibration, Calibration Type, First Calibration Point, Calibration Reminder,
Buffer Group
Note: See Calibration section for more information.
Calibration Type
• Automatic
When option is selected, the instrument selects the closest buffer value to that of the pH sample
being measured, from the Buffers in Use list.
• Semiautomatic
When option is selected, the instrument selects the closest buffers to that of the pH sample being
measured, from both Available Standard and Custom Buffers lists.
The user can then manually select between buffers that are close in value when the angle bracket
turns blue.
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