Casio FX-9750GII - Manual (Page 365)

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k Auto Calibrating a Custom Probe
Auto calibration automatically corrects the slope and intercept values of a custom probe
setup based on two actual samples.
Important!
• Before performing the procedure below, you should prepare two conditions whose
measurement values are known.
• When inputting reference value in step 5 of the procedure below, input the exact known
measurement value of the condition you will sample in step 4. When inputting reference
value in step 7 of the procedure below, input the exact known measurement value of the
condition you will sample in step 6.
u u u u u To auto calibrate a custom probe
1. Connect the calculator and EA-200, and connect the custom probe you want to auto
calibrate to CH1 of the EA-200.
2. What you should do first depends on whether you are configuring a new custom probe for
calibration, or editing the configuration of an existing custom probe.
If you are configuring a new custom probe:
• Perform steps 1 through 6 of the procedure under “To configure a custom probe setup”
on page 4-1.
• Auto calibrate will automatically set the slope and intercept, so you do not need to
specify them in step 6 of the above procedure.
If you are editing the configuration of an existing custom probe:
• Perform steps 1 through 3 of the procedure under “To edit a custom probe setup” on
page 4-6.
3. Press
2(CALIB).
• This will start the first sampling operation with the sensor connected to EA-200’s CH1,
and then display a screen like the one shown below.
4-3
Using a Custom Probe
First sampling operation
Real-time display of sampled values