Specifications and Characteristics 3
U2000 Series Operating and Service Guide 49
Settling time
In FAST mode (using Free Run trigger), for a 10 dB decreasing power step, the
settling time is:
1 When a power step crosses the auto-range switch point of the sensor, add 25 ms.
Tabl e 3- 2 Settling Time for Normal Mode and x2 Mode
1 Manual filter, 10 dB decreasing power step (not across the switching point)
Tabl e 3- 3 Noise Multiplier for Normal Mode and x2 Mode
Time
U2000 Series USB Power
Sensors
25 ms
1
Number of
Averages
1 2 4 8 16 32 64 128 256 512 1,024
Settling Time
1
(s)
(Normal Mode)
0.045 0.09 0.17 0.34 0.66 1.3 2.6 5.2 10.4 20.9 41.9
Settling Time
1
(s)
(x2 Mode)
0.042 0.05 0.09 0.17 0.34 0.66 1.3 2.6 5.2 10.4 20.9
Number of Averages
1 2 4 8 16 32 64 128 256 512 1,024
Noise Multiplier (s)
(Normal Mode)
2.0 1.8 1.7 1.5 1.0 0.95 0.74 0.55 0.39 0.29 0.21
Noise Multiplier (s) (x2
Mode)
2.7 2.4 2.0 1.6 1.0 0.91 0.78 0.53 0.34 0.29 0.20