Power Quality Analyzer Model 3945-B
27
Accuracy
Primary current
10 to 100A
100 to 800A
800 to 1000A
AC
800 to 1300A
PEAK
Accuracy
≤
1.5% + 1ct
≤
3% + 1ct
≤
5% + 1ct
Primary current
10 to 100Α
100 to 1000A
–
Phase angle
≤
2.0°
≤
15°
–
Factors affecting accuracy
(% of the output signal)
Conditions
Range
Error
Temperature
64 to 82°F
(18 to 28°C)
Ζerο:
≤
2 A/°C
Scale:
≤
300ppm/°C or
0.3%/10°C
Relative humidity
10 to 90% RH
0.5% of Reading
Battery voltage
6.5 to 10V
≤
1 A/V
Position of a
20mm Ø 20 conductor
DC at 440Hz
DC at 1Hz
DC at 2Hz
DC at 5Hz
<0.5% of Reading
<1% of Reading
<3% of Reading
<10% of Reading
Live adjacent conductor
50 and 60Hz
<10mA/A
AC
(1" from clamp)
External field
400 A/m
<1.3A
Rejection in common mode (AC)
50 to 400Hz
>65dB
Residual DC
+1300A
DC
at -1300A
DC
<4mA/A
Frequency of the
measurement signal
65Hz to 440Hz
440Hz to 1kHz
1kHz to 10kHz
-2%
-5%
-4dB
Power Source:
9V alkaline (NCDA 1604A, 6LR61)
Battery Life:
Approx 120 hrs with alkaline