Thermo Fisher Scientific CyberScan pH 300/310 - Manual (Page 31)

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From mV measurement mode
If you are in mV measurement mode, the display shows
the relative mV offset. You can adjust the relative mV
offset in relative mV calibration mode. See page 12 for
instructions.
1. If necessary, press the MODE key to select mV
measurement mode.
2. From mV measurement mode, press the SETUP key
to enter Set Up mode.
3. Press the MI/▲ or MR/▼ keys to scroll through
subgroups until you view parameter P3.0.
4. Press the ENTER key to select parameter 3.1.
5. The display shows the electrode offset value. It is
the relative mV offset. If you have not calibrated at
any mV standards, the primary display shows 0.00
mV.
6. Press the ENTER key to return to P3.0.
7. At any point, you can press the CAL/MEAS key to return to measurement mode.
See figure 27.
Figure 27 - View electrode offset value
from mV measurement mode