Features and Functions 3
Agilent U1251B/U1252B User’s and Service Guide 67
Square Wave Output (for U1252B)
The square wave output function can be used to generate a
PWM (pulse width modulation) output or provide a
synchronous clock source (baud rate generator). You can
also use this function to check and calibrate flow- meter
displays, counters, tachometers, oscilloscopes, frequency
converters, frequency transmitters, and other frequency
input devices.
1 Turn the rotary switch to position. The default
display setting is 600 Hz on the secondary display and
50% duty cycle on the primary display.
2 Press or to scroll through the available frequencies
(choose from the available 28 frequencies):
3 Press to select the duty cycle (%) on the primary
display.
4 Press or to adjust the duty cycle. Duty cycle can be
set for 256 steps and each step is 0.390625%. The display
only indicates the best resolution with 0.001%.
Frequency (Hz)
0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 480, 600, 800, 1200, 1600,
2400, 4800
Pressing is the same as pressing .
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