AEMC PowerPad 3945-B, Руководство пользователя, Страница: 28 / 108

26
Power Quality Analyzer Model 3945-B
Accuracy
Primary current (A
AC
) 20 to 100A 100 to 1000A
Accuracy (% of the output signal) ≤ 3% ≤ 2%
Phase shift (°) -90° ±0.5°
Factors affecting accuracy
(% of the output signal)
Conditions Range Error
Temperature -4 to 140°F (-20 to 60°C) 0.2% per 10°C
Relative humidity 10 to 90% RH 0.5%
Frequency response 10Hz to 20kHz 0.5%
Position of conductor
in clamp
Any position
< 2%
(6% near latching system)
Adjacent conductor
carrying an AC current
Conductor in contact with
the sensor
<0.7%
(6% near latching system)
3.11 AC Current Probe MR193 Probe
(3945-B accuracy included)
When installing probes, face the arrow on the probe in the direction of
the load.
Nominal Range:
1000A
AC
, 1400A
DC
max
Measurement Range: 10A to 1000A
AC
,
10A to 1300A
PEAK AC+DC
Currents <1A
AC/DC
will be displayed as zero with this probe.
Probe Output Signal: 1mV/A
Maximum Cable Diameter: One 1.6" (42mm) or two 0.98" (25.4mm) or
two bus bars 1.96 x 0.19" (50 x 5mm)
Safety: EN 61010-2-032, Pollution Degree 2, 300V CAT IV, 600V CAT III
Reference Conditions:
Ambient temperature 64 to 82°F (18 to 28°C)
Humidity 20 to 75% of RH
Battery voltage 9V ±0.1V
Position of conductor in the sensor Centered
Magnetic field DC magnetic field
AC External magnetic field None
External electric field None
Frequency ≤ 65Hz
Type of signal measured Sinusoidal