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Warranted Characteristics
Table 1-11: Warranted Characteristics - Time Base System (Cont.)
Name
Delay Accuracy, Main Sweep Trigger
Point to Start of Delayed
Sweep
Delta Delay Accuracy
Description
± (0.5% of reading + 5% of 1 division of the Main sweep + 25 ns).
±
(0.5% of reading +
5%
of 1 division of the Main sweep + 10 ns).
Table 1-12: Warranted Characteristics - Triggering System
Name
TAS 475 Edge-Type Trigger Sen-
sitivity, DC Coupled
TAS
485 Edge-Type Trigger
Sensitivity, DC
Coupled
Description
The limits are
as
follows:
Trigger Source Sensitivity
Any Channel
The limits are
as
follows:
0.30 division from
DC
to 25 MHz,
increasing to 1 div at
150 MHz.
Trigger Source Sensitivity
Any Channel
0.30 division from
DC
to 25 MHz,
increasing to 1.5 div at
250 MHz .
Trigger Level or Threshold Accuracy The limits are
as
follows for signals having rise and fall
times
;::::
20 ns:
Coupling Source
Accuracy
DC
All except Line ±
(5%
of
reading + 0.4
division + 1 mV).
Noise Reject All except Line
±
(5%
of
reading +
1.1
division + 1 mY).
HF Reject All except Line ±
(5%
of
reading + 0.35
division + 1
mV)
.
TAS 475 and TAS 485 Service Manual
1-13
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