Datasheet

5 Fluke Corporation Fluke 120B Series Industrial ScopeMeter
®
Hand-Held Oscilloscopes
Specifications
Oscilloscope mode
Vertical
Frequency response - dc coupled without probes and test leads (with BB120) 123B: dc to 20 MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)
with STL120-IV 1:1 shielded test leads DC to 12.5 MHz (-3 dB) / dc to 20 MHz (-6 dB)
with VP41 10:1 Probe 123B: dc to 20MHz (-3 dB)
124B and 125B: dc to 40 MHz (-3 dB)
Frequency response - ac coupled
(lf roll off)
without probes and test leads <10 Hz (-3 dB)
with STL120-IV 1:1 shielded test leads <10 Hz (-3 dB)
with VP41 10:1 Probe <10 Hz (-3 dB)
Rise time, excluding probes,
test leads
123B <17.5 ns
124B and 125B <8.75 ns
Input impedance without probes and test leads 1 MΩ//20 pF
with BB120 1 MΩ//24 pF
with STL120-IV 1:1 shielded test leads 1 MΩ//230 pF
with VP41 10:1 Probe 5 MΩ//15.5 pF
Sensitivity 5 mV to 200 V/div
Analog bandwidth limiter 10 kHz
Display modes A, -A, B, -B
Max. input voltage A and B direct, with test leads, or with VP41 Probe 600 Vrms CAT IV, 750 Vrms maximum voltage.
with BB120 600 Vrms
Max. floating voltage, from any
terminal to ground
600 Vrms CAT IV, 750 Vrms up to 400Hz
Horizontal
Scope modes Normal, Single, Roll
Ranges (Normal) Equivalent sampling 123B: 20 ns to 500 ns/div,
124B and 125B: 10 ns to 500 ns/div
Real time sampling 1 μs to 5 s/div
Single (real time) 1 μs to 5 s/div
Roll (real time) 1s to 60 s/div
Sampling rate (for both channels
simultaneously)
Equivalent sampling (repetitive signals) up to 4 GS/s
Real time sampling 1 μs to 60 s/div 40 MS/s
Trigger
Screen update Free run, on trigger
Source A, B
Sensitivity A and B @ DC to 5 MHz 0.5 divisions or 5 mV
@ 40 MHz 123B: 4 divisions
124B and 125B: 1.5 divisions
@ 60 MHz 123B: N/A
124B and 125B: 4 divisions
Slope Positive, negative
Advanced scope functions
Display modes Normal Captures up to 25 ns glitches and displays
analog-like persistence waveform.
Smooth Suppresses noise from a waveform.
Glitch off Does not capture glitches between samples
Envelope Records and displays the minimum and
maximum of waveforms over time.
Auto set (Connect-and-View™) Continuous fully automatic adjustments of amplitude, time base, trigger levels, trigger gap, and
hold-off. Manual override by user adjustment of amplitude, time base, or trigger level.