Fluke 123/124/125
Service Manual
2-4
Sensitivity 5 mV to 500 V/div
Display Modes A, -A, B, -B
Max. Input Voltage A and B
Direct, with test leads, or with VP40 Probe 600 Vrms
with BB120 300 Vrms
(For detailed specifications see “2.8 Safety”)
Max. Floating Voltage
from any terminal to ground 600 Vrms, up to 400Hz
Resolution 8 bit
Vertical Accuracy ±(1% + 0.05 range/div)
Max. Vertical Move ±4 divisions
Max. Base Line Jump After changing time base or sensitivity
Normal & Single mode ±0.04 divisions (= ±1 pixel)
2.2.2 Horizontal
Scope Modes Normal, Single, Roll
Ranges
Normal:
equivalent sampling (Fluke 123) 20 ns to 500 ns/div
equivalent sampling (Fluke 124, 125) 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 1.25 GS/s
Real time sampling:
1 μs to 5 ms/div 25 MS/s
10 ms to 5 s/div 5 MS/s
Time Base Accuracy
Equivalent sampling ±(0.4% +0.04 time/div)
Real time sampling ±(0.1% +0.04 time/div)
Glitch Detection ≥40 ns @ 20 ns to 5 ms/div
≥200 ns @ 10 ms to 60 s/div
Glitch detection is always active.
Horizontal Move 10 divisions
Trigger point can be positioned anywhere
across the screen.
2.2.3 Trigger
Screen Update Free Run, On Trigger
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