Measurement Computing eZ-PostView rev.2.0 - Manual (Page 65)

eZ-Analyst 979595 Menus 3-7
Calibration Process
Single
Channel
Used to select one active channel at a time. When the calibrator only
has one channel output, the Single Channel method must be used.
When Single Channel is selected, the “Active” column shows a radio
button next to each channel.
Multiple
Channel
Used to select two or more channels for simultaneous calibration.
This is only an option when the calibrator offers more than one
output. When Multiple Channel is selected, the “Active” column
shows a checkbox next to each channel.
Auto Range The Auto-Range calibration process is only available for ZonicBook
Medallion applications. Auto-range sets the input full-scale voltage
(FSV) range for the input channels to be calibrated. FSV is
determined by measuring a representative sample of real-time data.
Calibration Domain
With the use of Fourier Transform, any signal can be viewed from a time domain or a
frequency domain. Either domain can be selected for use in the calibration process.
Time The overall value is computed using time domain data.
Frequency The overall value is computed with frequency domain data by
summing up frequency component of FFT spectrum.
Calibrator Frequency (Hz)
This field is used to enter the frequency setting of the calibrator. The analysis frequency,
which is twice this frequency, is used if possible. Otherwise, the maximum allowed
analysis frequency is used.
Columns on the Calibration Window
No. This column displays channel numbers [1, 2, 3, … etc.] for easy
reference to their associated cells. The channel numbers, being for
display indication only, are fixed and can not be edited.
Active When “Single Channel” is selected, you can click on a radio button
in the “Active” column to enable one channel for calibration. When
the calibration is complete, select the radio button for the next
channel to be calibrated.
When “Multiple Channel” is selected, the radio buttons are
replaced by checkboxes. Ensure that each channel to be calibrated
has the associated box checked, and that the remaining channels
remain unchecked. For multiple channel applications note that you
can click on the column label, i.e., the word “Active” to
simultaneously check or uncheck all channel checkboxes in the
column.
Note: The channel settings in the Calibration window are
independent of the selections that appear in the Input
Channel Setup window. Only active channel shows up at
calibration window.