Trigger - Fluke 93 Service Manual

CHARACTERISTICS
2-5
CHARACTERISTICS SPECIFICATIONS ADDITIONAL INFORMATION
2.5
TRIGGER
•
Sources
Sheeted Independently.
Channel
A
Signal
Channel
B
Signal
External Trigger Input
GHANA
CHAN
B
EXT
*
External Trigger Input
Connector
Dual Salety
Banana
Jack
External Trigger Input
common
(low)
jack
is
electrically
connected
to
the
Channel
A
and
Channel
B commons
(outer
contact of BNC's).
'
External Tiigger Input
Impedance
R
parallel
1
MJ^±1%
If
used
for
mV DC
>
1
MQ.
C
parallel
25
pF
Including
Banana
to
BNC
adapter.
• Trigger Error
For frequencies <
1
MHz.
Voltage Level
±1 LSB
±0.5
div
5s;dlv...50MS/dlv.
20
|i8/div...10 ns/div.
Time
Delay
±1 LSB ±5
ns
•
Maximum
External Trigger
Input (rms)
300
V
Frequency dependent, see
fig.
2.2.
•
Trigger Sensitivity
For Models 95 and
97,
values
must
be
multiplied
by 5
In
2 mV/dIv.
and
1
mn/dfv.
Charrnel
A
or
B
a
100
MHz
^
60
MHz
@
10
MHz
54
div
51.5
div
50.5
div
External Trigger input
TTL
logic
compatible using
10;1
attenuation
Probe.
•
Trigger
Slope
Selection positive
going
negative going
•
Trigger Level Control
Range
Channel
A
or
B
Trigger at
50%
External Trigger Input
±4
div
0.5 X
peak/t^ak value
Fixed
@
TTL:10
Measured
during
20
ms.
Switchable
lo
TTL
via set-up
menu.