Functions and Features 3
Keysight U1253B User’s and Service Guide 103
Square Wave Output
The U1253B true RMS OLED multimeter’s square wave output 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.
Selecting square wave output frequency
1 Set the rotary switch to . The default pulse width is 0.8333 ms and
default frequency is 600 Hz, as shown on the primary and secondary displays
respectively.
2 Press to switch between duty cycle and pulse width for the primary
display.
3 Press or to scroll through the available frequencies (there are 29
frequencies to choose from).
Table 3-1 Available frequencies for square wave output
Frequency (Hz)
0.5, 1, 2, 5, 6, 10, 15, 20, 25, 30, 40, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 480, 600, 800, 1200, 1600, 2400, 4800
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