User's Manual

Fluke 434-II/435-II/437-II
Users Manual
27-6
Fluke 434-II @ 50Hz
nominal
Fluke 434-II @ 60Hz
nominal
42.5 ... 57.5 Hz
51 ... 69 Hz
0.001 Hz
0.001 Hz
± 0.01Hz
± 0.01Hz
Power Measurement Range Resolution Accuracy
Watt (VA, var)
i430flex-TF
1 mV/A
max 6000 MW
max 2000 MW
0.1 W … 1 MW
0.1 W … 1 MW
± 1% ± 10 counts
± 1% ± 10 counts
Power Factor (Cos ϕ /
DPF)
0…1 0.001 ± 0.1% @ nominal load
conditions
Energy Measurement Range Resolution Accuracy
kWh (kVAh, kvarh)
i430flex-TF 10x
Depends on clamp scaling and V nominal ± 1% ± 10 counts
Energy loss
i430flex-TF 10x
Depends on clamp scaling and V nominal ± 1% ± 10 counts
Excluding line resistance
accuracy
Harmonics Measurement Range Resolution Accuracy
Harmonic order (n) DC, 1..50 Grouping: Harmonic groups according to IEC 61000-4-7
Inter-Harmonic order Off, 1..50 Grouping: Harmonic and Interharmonic subgroups according to IEC
61000-4-7
Volts %f 0.0 … 100.0% 0.1% ± 0.1% ± n x 0.1%
Volts %r 0.0 … 100.0% 0.1% ± 0.1% ± n x 0.4%
Volts Absolute 0.0 … 1000 V 0.1 V ± 5% (*)
Volts THD 0.0 … 100.0% 0.1% ± 2.5%
Amps %f 0.0 … 100.0% 0.1% ± 0.1% ± n x 0.1%
Amps %r 0.0 … 100.0% 0.1% ± 0.1% ± n x 0.4%
Amps Absolute 0.0 … 600 A 0.1 A ± 5% ± 5 counts
Amps THD 0.0 … 100.0% 0.1% ± 2.5%
Watts %f or %r 0.0 … 100.0% 0.1% ± n x 2%
Watts Absolute Depends on clamp scaling and V nominal ± 5% ± n x 2% ± 10
counts
Watts THD 0.0 … 100.0% 0.1% ± 5%
Phase angle -360º ... +0º 1º ± n × 1º (8)
*) ± 5 % if ≥ 1 % of nominal voltage; ± 0.05 % of nominal voltage if < 1% of nominal voltage.