Ono Sokki CF-4700, User Manual

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53
Specifications
CF-4700 FFT Comparator
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Controls
Power switch Holding down 1 second causes power on. • Holding down causes forced power off.
Holding down 1 second causes power on. • Holding down causes forced power off.
Setting key Soft keys on the lower part of LCD screen can set each function in detail.
Control key Soft keys on the right side of LCD screen can control measurements and analyses
and can also set various conditions.
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Analysis
Frequency range 1 Hz to 40 kHz
Frequency accuracy Reading ±0.005% (±50 ppm)
Sampling Frequency Frequency 2.56 times the frequency range (during internal sampling)
Items sampled and analyzed Sampled Analyzed
256 100
512 200
1024 400
2048 800
4096 1600
8192 3200
16384 6400
Overlapping MAX, 75%, 66.7%, 50%, 25%, 0%, customized
Window function Rectangular, Hanning, FlatTop
Time-axis waveform
processing function 1st-order, 2nd-order differential/single, double integration
Absolute value conversion, DC cancel, trend removal, smoothing
FFT realtime rate 40 kHz (internal sample: FET 16384 points)
Averaging function • Averaging can be terminated by specifying the number of times or seconds
• A/D over cancel function
Averaging count setting 1 to 65535 times
Averaging time setting 0.1 to 999.9 seconds
Time domain Arithmetic mean, exponential averaging
Frequency area Arithmetic mean, exponential averaging, peak
hold, MaxOA
Amplitude domain Histogram addition average
Trigger function TRIG'D blinking green on screen during triggering
Trigger level (internal trigger) −99 to 99 (unit: %), default = 25%
Hysteresis level (internal trigger) 0 to 99 (unit: %), default = 2%
Position ±8191
Mode Free, repeat, single, one-shot
Source CH1/external trigger input
Slope +, −, ± (internal trigger only)
FFT operation 32-bit floating point number (IEEE single precision format)