Specification - Tenma 72-14520 Instructions Manual

• Try changing the trigger coupling to high frequency or low frequency in order to
suppress or remove noise caused by interference.
The measured amplitude value is 10 times larger or smaller than the actual value:
• Make sure the probe attenuation coefficient matches the attenuation of the probe
used.
Pressing RUN/STOP key and no waveform is displayed:
• Check whether the trigger menu's trigger method is set to normal, and whether the
trigger level has exceeded the waveform range. If it exceeded, centre the trigger
level or set the trigger mode to auto with the AUTO key.
• Press AUTO button to complete the above setting.
Waveform refresh rate is too slow:
• Check whether the acquisition is set average, and the number of times it averages.
• You can speed up by display by reducing the average times or select other
methods such as normal sampling.

SPECIFICATION

Input coupling
Input impedance
Probe attenuation
Maximum input voltage
Time delay between channels
(typical)
Model
Bandwidth
Rise Time (Typical)
Channels
Vertical resolution
Vertical Scale
Vertical
Displacement
Range
Bandwidth Limit
(typical)
Low Frequency
Response
(AC coupling, -3dB)
1MΩ ± 2% // 20pF ± 3pF
72-14535 72-14530
100MHz 70MHz
≤3.5ns ≤5ns
4
8 bit
1mV/div~20 V/div(1-2-5 base)
mV/div~50 mV/div: ±2V 100 mV/div~1 V/div: ±40V 2V/div~20 V/div: ±400V
20MHz
≤5Hz (on BNC)
Input
DC, AC, GND
0.001× 0.01× 0.1× 1× 10× 100× 1000×
CATI 300 Vrms, CATII 100 Vrms
Transient Overvoltage 1000 Vpk
150ps
Vertical
72-14525
100MHz
≤3.5ns
2
44
72-14520
70MHz
≤5ns