Power Meter
5335B
5
www.bkprecision.com
Influence of self-generated heat caused by
voltage input (U is the voltage reading (V))
+ 0.0000001 × U
1
% to the AC voltage accuracy
+ 0.0000001 × U
2
% + 0.0000001 × U
2
% F.S. to DC current accuracy
Specifications (cont.)
Current Measurement Accuracy and Ranges
Direct input range
CF= 3:5 mA, 10 mA, 20 mA, 50 mA, 100 mA, 200 mA, 0.5 A, 1 A, 2 A, 5 A, 10 A, 20 A
CF= 6:2.5 mA, 5 mA, 10 mA, 25 mA, 50 mA, 100 mA, 250 mA, 0.5 A, 1 A, 2.5 A, 5 A, 10 A
Sensor input range
External 1
CF = 3: 2.5 V, 5 V, 10
V CF = 6: 1.25 V, 2.5 V,
5 V
External 2
CF= 3: 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2
V CF= 6: 25 mV, 50 mV, 100 mV, 250 mV, 500
mV, 1 V
Accuracy
2
(line, frequency,
& digital filter set to off)
DC to 1 kHz
±(0.1% + 0.2% F.S.)
1 kHz < f
≤
10 kHz
±{(0.07 f
1
)% + 0.3% F.S.}
10 kHz < f
≤
100 kHz
±(0.5% + 0.5% F.S.) ± [{0.04×(f
1
-10)}%]
Temperature
coefficient
2.5 to 200 mA
5 μA/ °C (after zero-level compensation, or range change)
500 mA to 20 A
500 μA/ °C (after zero-level compensation, or range change)
Influence of internal
sensor self-heating
+ 0.00013 × I
2
% of reading to the AC current accu 0.00013 × I
2
% of r 0.004 × I
2
mA (0.5 to 20
A) or
0.00013 × I
2
% of r 0.00004 × I
2
mA (2.5 to 200 mA), add to the DC current accuracy specifications
Power Measurement Accuracy
Real power accuracy
2 , 3
(CF= 3)
4
DC
±(0.1% + 0.2% F.S.)
0.5 Hz
≤
f < 45 Hz
±(0.3% + 0.2% F.S.)
45 Hz
≤
f
≤
66 Hz
±(0.1% + 0.1% F.S.)
66 Hz < f
≤
1 kHz
±(0.2% + 0.2% F.S.)
1 kHz < f
≤
10 kHz
±(0.1% + 0.3% F.S.) ± [{0.067×(f-1)}%]
10 kHz < f
≤
100 kHz
±(0.5% + 0.5% F.S.) ± [{0.09×(f-10)}%]
Apparent power (S)
Voltage ac current accuracy
Reactive power (Q)
Apparent power ac ( 1.0004-PF
2
) - ( 1-PF
2
) × 100%
Power factor (
PF
)
±[(PF–PF/1.0002) + abs(cosØ - cos{Ø+sin
-1
(influence from the power factor when PF=0%/100)})] ± 1
digit when voltage and current are at the measurement range rated input
Phase angle (
Ф
)
±[abs(Ø - cos
-1
(PF/1.0002)) + sin
-1
{(influence from the power factor when PF=0%)/100}] deg ± 1
digit when voltage and current are at the measurement range rated input
Temperature coefficient
Same as the temperature coefficient for voltage and current
Frequency Measurement Accuracy
Frequency
measurement
range
Data update
interval
0.1 s
0.25 s
0.5 s
1 s
2 s
5 s
Measurement
range
25 Hz
≤
f
≤
100
kHz
10 Hz
≤
f
≤
100
kHz
5 Hz
≤
f
≤
100
kHz
2.5 Hz
≤
f
≤
100
kHz
1.5 Hz
≤
f
≤
50
kHz
0.5 Hz
≤
f
≤
20
kHz
1
Input waveform: Sine wave crest factor: 3, common-mode voltage: 0 V, power factor: 1
Frequency filter: Turn on when measuring
≤
200 Hz
