Fluke 433 - Page 12

Fluke 433, 434, 435
Service Manual
2-4
2.2 Electrical Measurements
The following specifications of the instrument are verified using the “implementation
verification” table 3 as specified in 61000-4-30 chap-6-2.
INPUT CHARACTERISTICS
Voltage inputs
Number of inputs 4 (3 phases + neutral) DC coupled
Maximum input
voltage
1000 Vrms
Nominal Voltage
range
50…500 V internally devided in three ranges 500 V, 250 V and 125 V
Maximum peak
voltage
6 kV
Input impedance 4 MΩ // 5 pF
Bandwidth > 10 kHz, up to 100kHz for transient display
Scaling 1:1, 10:1, 100:1, 1000:1 and variable
Current inputs
Number of inputs 4 (3 phases + neutral) DC coupled
Type Clamp on current transformer with mV output
Nominal input
Range
0 - ± 5.625 Vpeak, 0 - 3.97 Vrms sinewave
Range 1..400 Arms with included clamps (I400S)
0.1..3000 Arms with optional clamps
Input impedance 50 kΩ
Bandwidth >10 kHz
Scaling 0.1, 1, 10, 100, 1000 mV/A, variable, i5s and i430flex
Nominal frequency 40..70 Hz
Sampling system
Resolution 16 bit analog to digital converter on 8 channels
Maximum sampling
speed
200kS/s on each channel simultaneously
RMS sampling 5000 samples on 10/12
2
cycles according IEC 61000-4-30
PLL synchronization 4096 samples on 10/12
2
cycles according IEC 61000-4-7