The SM2060 has are 26 A/D apertures available, ranging from 5 Seconds to 625uSec. The following
table contains all available measurement apertures corresponding minimum read intervals and
measurement rates.
Power Line Rejection
Command/Response
mode min. Read
Interval(s) / max meas.
rate(Hz)
H/W Trigger mode min. Read
Interval(s) / max meas. Rate
(Hz)
Aperture
60Hz 50Hz 400Hz
5.1200s [1]
√
√
√
5.121s / 0.2
N/A
5.0666s [1]
√
5.0677s / 0.2
N/A
2.08s [1]
√
√
2.081s / 0.5
N/A
2.0s [1]
√
√
√
2.001s / 0.5
N/A
1.06666s [1]
√
1.067s / 1
N/A
960ms [1]
√
√
0.9605s / 1
N/A
533.33ms [1]
√
533.6ms / 2
N/A
480ms [1]
√
√
480.2ms / 2
N/A
266.666ms [1]
√
268ms / 4
N/A
160.0ms
√
√
√
166ms / 6
160.3 ms / 6
133.33ms
√
134ms / 8
133.5 ms / 8
80.00ms
√
√
80.4ms / 13
80.2 ms / 13
66.6667ms
√
67.2ms / 15
66.713 ms / 15
40.00ms
√
√
40.4ms / 25
40.32 ms / 24.8
33.333ms
√
33.7ms / 30
33.38 ms / 30
20.00ms
√
√
20.35ms / 50
20.33 ms / 50
16.6667ms
√
16.9ms / 59
16.89 ms / 59
10ms
10.36ms / 97
10.25 ms / 97
8.333ms
8.68ms / 115
8.503 ms / 115
5ms
5.36ms / 185
5.187 ms / 185
4.16667ms
4.52ms / 220
4.274 ms / 220
2.5ms
2.86ms / 350
2.614 ms / 350
2.0833ms
2.44ms / 410
2.216 ms / 410
1.25ms
1.6ms / 625
1.380 ms / 625
1.0417ms
1.39ms / 719
1.158 ms / 864
625
µ
S
917
µ
s / 1,090
728
µ
s / 1,370
[1] Not available with any of the Triggered modes.
Precise control of the measurement timing and line frequency rejection can be accomplished by controlling the Read
Interval and Aperture. Line rejection is dictated by the Aperture, and the duration of measurement is controlled with
Read Interval
.
Read Interval can be programmed in
µ
s increments for values up to 65ms
, and in 20
µ
s increments to 1 second.
Figure 2-1: Time frame of a single measurement.
.13 Source Functions (SMX2064)
2
23
Signametrics