5-11
IM 701210-05E
Horizontal and Vertical Axes
5
Explanation
Selecting the Bandwidth Limit
High frequency components can be eliminated from the input signal. The bandwidth
varies depending on the input module as follows. For the bandwidth limit of the 701280
(FREQ), see page 5-51.
Input Module Bandwidth
701250 (HS10M12) 500 Hz, 5 kHz, 50 kHz, 500 kHz, and Full
701255 (NONISO_10M12)
701251 (HS1M16) 400 Hz, 4 kHz, 40 kHz, and Full
701260 (HV (with RMS)) 100 Hz, 1 kHz, 10 kHz, Full
701261 (UNIVERSAL)*
1
2 Hz, 8 Hz, 30 Hz, and Full
701262 (UNIVERSAL (AAF))*
1
701265 (TEMP/HPV)
701270 (STRAIN_NDIS)/ 10 Hz, 100 Hz, 1 kHz, Full
701271 (STRAIN_DSUB)
701261 (UNIVERSAL)*
2
40 Hz, 400 Hz, 4 kHz, Auto, Full
701262 (UNIVERSAL (AAF))*
2
701275 (ACCL/VOLT)
*1 When measuring temperature
*2 When measuring voltage. Auto is not available on the 701261.
For example, frequency bandwidths of 400 Hz, 4 kHz, and 40 kHz are available on the
701251 (HS1M16). The frequency characteristics when bandwidth is limited are shown
below. When Full is selected, the maximum bandwidth of the input module is used.
3 dB
Approx. 400 Hz Approx. 40 kHz
Approx. 4 kHz
FULL
Bandwidth Limit on the 701262 (UNIVERSAL (AAF)) and 701275 (ACCL/VOLT)
If you set the bandwidth limit on the 701262 (UNIVERSAL (AAF)) when measuring
voltage or the 701275 (ACCL/VOLT) to Auto, the anti-aliasing filter and low-pass filter
settings are set to values shown below according to the sample rate.
Sample Rate Anti-aliasing Filter Low-pass filter
200 kS/s or greater 40 kHz OFF
100 kS/s 40 kHz OFF
50 kS/s 20 kHz OFF
20 kS/s 8 kHz OFF
10 kS/s 4 kHz 4 kHz
5 kS/s 2 kHz 4 kHz
2 kS/s 800 Hz 4 kHz
1 kS/s 400 Hz 400 Hz
500 S/s 200 Hz 400 Hz
200 S/s 80 Hz 400 Hz
100 S/s 40 Hz 40 Hz
50 S/s 20 Hz 40 Hz
5 S/s to 20S/s 20 Hz 40 Hz
2 S/s or less 20 Hz 40 Hz
Ext sample 40 kHz OFF
For example, for sample rates between 100 kS/s to 50 kS/s, the cutoff frequency of the
anti-aliasing filter is set to 40% of the sample rate.
5.7 Setting the Bandwidth
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