4-9
IM DL350-01EN
Bandwidth Limit (Bandwidth)
You can specify a bandwidth limit for each module. You can use bandwidth limits to observe input signal
waveforms with their noise components removed.
Normal Bandwidth Limits
High frequency components can be eliminated from the input signal. The bandwidth limits vary as shown below
depending on the input module.
Input Module
Bandwidth Limit
720211 (HS100M12)
10 kHz, 20 kHz, 40 kHz, 80 kHz, 160 kHz, 320 kHz, 640 kHz,
1.28 MHz, 2 MHz, Full
720250 (HS10M12)
500 Hz, 5 kHz, 50 kHz, 500 kHz, Full
720254 (4CH 1M16)
6.25 Hz, 12 H.5 Hz, 25 Hz, 50 Hz, 100 Hz, 200 Hz, 400 Hz,
800 Hz, 1.6 kHz, 3.2 kHz, 6.4 kHz, 12.8 kHz, 40 kHz, Full
720268 (HV (with AAF, RMS))
400 Hz, 4 kHz, 40 kHz, Auto, Full
701261 (UNIVERSAL),
1
701262
(UNIVERSAL (AAF)),
1
701265
(TEMP/HPV)
2 Hz, 8 Hz, 30 Hz, Full
720266 (TEMP/HPV)
0.1 Hz, 1 Hz, 8 Hz, Full
701270 (STRAIN_NDIS), 701271
(STRAIN_DSUB)
10 Hz, 100 Hz, 1 kHz, Full
701261 (UNIVERSAL),
2
701262
(UNIVERSAL (AAF)), 701275
(ACCL/VOLT)
40 Hz, 400 Hz, 4 kHz, Auto, Full
720281 (FREQ)
3
100 Hz, 1 kHz, 10 kHz, 100 kHz, Full
720220 (16CH VOLT)
500 Hz, Full
1 When measuring temperature.
2 When measuring voltage. Auto cannot be selected on the 701261.
3 Full cannot be selected when Preset is set to AC100V or AC200V.
For example, on the 701250 (HS1M12), you can set the frequency bandwidth limit to 500 Hz, 5 kHz, 50 kHz, or
500 kHz. The frequency characteristics for the different bandwidth limits are shown below. If you select Full, the
module’s maximum bandwidth is used.
–3 dB
Approx. 500 Hz
Approx. 50 kHz
Approx. 5 kHz
FULL
Approx. 500 kHz
Bandwidth Limitation on the 720268 (HV (with AAF, RMS))
When you are using the 720268 (HV (with AAF, RMS)) and the bandwidth limit is set to Auto, the anti-aliasing
and low-pass filter settings vary as shown below depending on the sample rate.
Sample Rate
Anti-Aliasing Filter
Low-Pass Filter
1 MS/s
40 kHz
40 kHz
500 kS/s
40 kHz
40 kHz
200 kS/s
40 kHz
40 kHz
100 kS/s
40 kHz
40 kHz
50 kS/s
20 kHz
40 kHz
20 kS/s
8 kHz
40 kHz
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
400 Hz
50 S/s or less
40 Hz
400 Hz
Ext sample
OFF
OFF
For example, when the sample rate is between 100 kS/s and 50 kS/s, the cutoff frequency of the anti-aliasing
filter is 40% of the sample rate.
4 Vertical Axis