11
Signametrics
2.3.4 AC Median Value Measurement (SMX2044)
•
Measures the mid-point between the positive and negative peaks of a repetitive waveform
•
Used to determine the Threshold DAC setting for optimal frequency and timing measurements
ACV
Range
Lowest specified input
voltage (Vp-p)
Full Scale
reading
Resolution
Typical Accuracy 23
°
C
±
5
°
C One Year [1]
330 mV
0.08 V
±
0.95 V
1 mV
2.0%
±
17 mV
3.3 V
0.80 V
±
9.5 V
10 mV
3% ±160 mV
33 V
8 V
±
95.0 V
100 mV
3% ±1.4 V
250 V
80 V
±
350.0 V
1 V
3% ±12 V
[1] Median measurements require a repetitive signal with frequency range of 30 Hz to 30 KHz.
2.4 AC Current Measurement, True RMS
Input Characteristics
•
Burden Voltage
< 350 mV RMS all Ranges
•
Crest Factor
3 at Full Scale, increasing to 7 at Lowest Specified Current
•
Protected
with 2.5 A fuse ( 5x20 mm, 250 V Fast)
Range
Full Scale 6 1/2 Digits
Lowest Specified Current
Resolution
3.3 mA
3.300000 mA
50
µ
A
1 nA
33 mA
33.00000 mA
500
µ
A
10 nA
330 mA
330.0000 mA
5 mA
100 nA
2.5 A
2.500000 A
50 mA
1 uA
Accuracy ± (% of r Amps)
Range
Frequency
24 hours
23
°
C
±
1
°
C
90 Days
23
°
C
±
10
°
C
One Year
23
°
C
±
10
°
C
10 Hz - 20 Hz
3.8 + 4
µ
A
2.7 + 4
µ
A
2.9 + 4
µ
A
20 Hz - 47 Hz
0.9 + 4
µ
A
0.9 + 4
µ
A
1.0 + 4
µ
A
47 Hz - 1 kHz
0.04 + 1.5
µ
A
0.08 + 3
µ
A
0.12 + 4
µ
A
3.3 mA
1 kHz - 10 kHz
0.12 + 4
µ
A
0.14 + 4
µ
A
0.22 + 4
µ
A
10 Hz - 20 Hz
1.8 + 30
µ
A
2.6 + 30
µ
A
2.8 + 30
µ
A
20 Hz - 47 Hz
0.6 + 30
µ
A
0.9 + 30
µ
A
1.0 + 30
µ
A
47 Hz - 1 kHz
0.07 + 10
µ
A
0.15 + 20
µ
A
0.16 + 30
µ
A
33 mA
1 kHz - 10 kHz
0.21 + 30
µ
A
0.3 + 40
µ
A
0.4 + 40
µ
A
10 Hz - 20 Hz
1.8 + 400
µ
A
2.7 + 400
µ
A
2.8 + 400
µ
A
20 Hz - 47 Hz
0.6 + 400
µ
A
0.9 + 400
µ
A
1.0 + 400
µ
A
47 Hz - 1 kHz
0.1 + 100
µ
A
0.17 + 180
µ
A
0.22 + 220
µ
A
330 mA
1 kHz - 10 kHz
0.3 + 300
µ
A
0.4 + 350
µ
A
0.6 + 400
µ
A
10 Hz - 20 Hz
1.8 + 4 mA
2.5 + 4.5 mA
2.7 + 5 mA
20 Hz - 47 Hz
0.66 + 4 mA
0.8 + 6 mA
0.9 + 6 mA
47 Hz - 1 kHz
0.6 + 3.8mA
0.63 + 3.8 mA
0.65 + 4 mA
2.5 A
1 kHz - 10 kHz
0.6 + 4mA
0.62 + 4.5 mA
0.7 + 5 mA
Note: All AC Current ranges have typical measurement capability to 20 kHz.
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