Thermo Fisher Scientific CyberScan pH 300/310 - Manual (Page 34)

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P4.2: Selecting number of pH calibration points
Program P4.2 lets you select the number of calibration
points that appear in pH calibration mode: 2, 3, 4, or 5.
This lets the meter scroll through the calibration points
more quickly if you regularly calibrate at less than 5
points.
From measurement mode.
1. Press SETUP key to enter Set Up mode.
2. Press the MI/▲ or MR/▼ keys to scroll through
subgroups until you view parameter P4.0.
3. Press the ENTER key twice to select parameter
4.2.
4. Press the MI/▲ or MR/▼ keys to select 2, 3, 4, or
5 point pH calibration (up to 6 points for DIN
calibration set with pH 310 meter).
5. Press the ENTER key to confirm selection and to
return to the subgroup menu. Press CAL/MEAS
key to return to measurement mode.
See Figure 30.
Figure 30 - P4.2: Select number of pH
calibration points