Fluke ScopeMeter 192 User's Manual Supplement page 11

+8
-16
Trace offset limits (= dynamic range)
Ground marker position example
Figure 2-4. Max. trace offset lowest ranges
Avoid this for
steep edges
Using the MS190 Function
Triggering
The extended offset range allows you to shift the signal up
and down. Be aware that only the "visible" part is sampled
by the ADC, and that the trigger level has to stay in the
visible area too. Depending on what you are looking for, it
might be required to switch to Edge Trigger or to
time-qualified Pulse Trigger mode.
Tip for video signal measurements
To gain full profit of the Extended Offset for video signal
measurements:
• use the 50 Ω 10:1 attenuator feed-through terminator
• select Probe on A attenuation 10:1
• select range 500 mV/d
Now you can move the trace down for 16 divisions.
Specifications
Maximum trace offset with respect to center screen:
Vertical ranges 5 mV to 50 mV/div (direct 1:1):
positive going signals ....................................... -16 div
negative going signals ...................................... +8 div
Other vertical ranges:
positive going signals ......................................... -8 div
negative going signals ...................................... +8 div
2
Extended Offset
2-5