Racal Instruments 2251A Operator's Manual page 17

1.5.3.4 Time Interval
Separate Inputs:
Common Inputs:
Range:
Trigger Slopes:
LSD:
Resolution:
Accuracy:
1.5.3.5 Totalize A By B
Range:
Pulse Width:
Maximum Rate:
Start / Stop:
LSD:
Resolution:
Accuracy:
* Refer to Notes/Definitions
1-8
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Input A start / Input B stop
Input B start / Input A stop
Input A start / Input A stop
5
-2 ns to 1 x 10 sec
Start, positive or negative
Stop, positive or negative
1 ns (100 ps with average mode)
± LSD ± 1 ns ± Start Trigger Error* ± Stop
Trigger Error*
± Resolution ± (Timebase Error x Time
Interval) ±Trigger Level Setting Error* ± 2 ns
12
100 MHz; 1 to 10 - 1 events
5 ns min at trigger points
8
10 events / sec
Input B
±1 count
LSD
LSD
Page Changed 3/10/99