Casio EA-200 - Manual (Page 35)

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3-16
Setup
u To calibrate a custom probe
Note
• Perform the following procedure to calibrate a custom probe after you newly configure it or
after you edit its settings.
• This procedure calibrates slope and intercept values based on two actual samples using
the applicable custom probe.
• 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).
(1) Connect the EA-200 to your ClassPad, and connect the custom probe you want to
calibrate to the EA-200’s CH1 channel.
(2) What you should do next depends on whether you are calibrating a new custom probe
or an existing custom probe whose settings have been edited.
When calibrating a new custom probe:
• Perform steps (1) through (5) under “To configure a new custom probe” on page 3-12.
• You can skip step (2), if you want.
When calibrating an existing custom probe:
• Perform steps (1) through (6) under “To edit an existing custom probe” on page 3-14.
(3) Tap [Calibration].
• This starts sampling by the sensor connected to the
CH1 channel and displays a Sampling... dialog box
like the one shown to the right. This is how the dialog
box appears during standby prior to the first sample.
• If this dialog box is left on the display, sampling will
terminate and the dialog box will close automatically
after about five hours.
(4) Tap [Set] when you are ready to take the first sample.
• This causes the Sampling... dialog box to change as
shown to the right.
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