Fluke ScopeMeter 190 II Series - Triggering on Noisy Waveforms

ScopeMeter® Test Tool 190 Series II
Users Manual

Triggering on Noisy Waveforms
7RUHGXFHMLWWHURQWKHVFUHHQZKHQWULJJHULQJRQQRLV\
ZDYHIRUPV\RXFDQXVHDWULJJHUILOWHU&RQWLQXHIURPVWHS
RIWKHSUHYLRXVH[DPSOHDVIROORZV
4
ENTER
6HOHFWOn TriggerMXPSWRTrigger
Filter
5
ENTER
6HWNoise RejectRUHF RejectWR
On7KLVLVLQGLFDWHGE\DWDOOHU
WULJJHULFRQ 
:KHQNoise Reject LVRQ DQLQFUHDVHGWULJJHUJDS ZLOOEH
DSSOLHG
:KHQHF RejectLVRQ+)QRLVHRQWKHLQWHUQDOWULJJHU
VLJQDOZLOOEHVXSSUHVVHG
Making a Single Acquisition
7RFDWFKVLQJOHHYHQWV\RXFDQSHUIRUPDsingle shot
DFTXLVLWLRQRQHWLPHVFUHHQXSGDWH7RVHWXSWKHWHVW
WRROIRUDVLQJOHVKRWRIWKHLQSXW$ZDYHIRUPFRQWLQXH
IURPVWHSSDJHDJDLQ
4
ENTER
6HOHFWSingle Shot
7KHZRUG
MANUAL DSSHDUVDWWKHWRSRIWKHVFUHHQ
LQGLFDWLQJWKDWWKHWHVWWRROLVZDLWLQJIRUDWULJJHU$VVRRQ
DVWKHWHVWWRROUHFHLYHVDWULJJHUWKHZDYHIRUPLV
GLVSOD\HGDQGWKHLQVWUXPHQWLVVHWWRKROG7KLVLV
LQGLFDWHGE\WKHZRUGHOLDDWWRSRIWKHVFUHHQ
7KHWHVWWRROZLOOQRZKDYHDVFUHHQOLNH)LJXUH
5
HOLD
RUN
$UPWKHWHVWWRROIRUDQHZVLQJOH
VKRW
Tip
The test tool stores all single shots in the replay
memory. Use the Replay function to look at all
the stored single shots (see Chapter 3).
Figure 30. Making a Single Shot Measurement