Ratio Measurement (A/B); Use Of Rs-232C Serial Interfacing - UNISource Corporation FC-8300 Operation Manual

be equal to or greater than that of input B. And both frequencies must be within the
limits given in the "SPECIFICATIONS" section. Frequency ratio is determined by
counting the number of input A cycles occurring during a specified number of input
B cycles (1.10.100.1000) and applying the result, with a proper decimal point, to the
display.
BOTH INPUTS MAY BE CONNECTED TO THE SAME SIGNAL FOR A RATIO OF
1.000000 AT THE GATE TIME 1 SEC. THE UNIT INDICATORS ARE OFF
BECAUSE THE READING DISPLAYED IS RATIO.

3-9. Use of RS-232C Serial Interfacing

1) Hardware/Software Requirements
1.800.561.8187
a. Connect a signals to be measured to the input A and input B.
b. Set the ratio A/B of function switch.
c. Select the resolution desired using the gate time switches.
d. Frequency ratio is given by the display the gate indicator lights while
each measurement is in progress, and the display is updated at the end
of each measurement interval.
e. Press the hold switch "freezes" the display at the existing reading. When
hold is released, a new measurement begins, but the display continues
to hold the old reading until the new measurement is completed.
. IBM PC/XT/AT or compatible computer
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