Fluke 6105A - Voltage and Current Sinusoidal and Rectangular Modulation Flicker Specification; Fluctuating Harmonic Specifications

Introduction
Electrical Specifications 1
1-21
1-52.
Voltage and Current Sinusoidal and Rectangular Modulation Flicker
Specification
Setting range
±30 % of set value within range values (60 % ΔV/V)
Flicker modulation depth accuracy 0.025 %
Modulation depth setting resolution 0.001 %
Shape of modulation envelope Rectangular, Square or Sinusoidal
Duty cycle (shape = rectangular)
0.01 % to 99.99 %; accuracy = ±31 μs
0.5 Hz to 40 Hz
Modulation units Either:
Frequency
or
Changes per minute
1.0 CPM to 4800 CPM
Modulating frequency accuracy
[1][2]
<0.13 % (1 CPM to 4800 CPM)
[1] Rectangular modulation accuracy is ±{(10 + 31 x modulating frequency) ppm + 10 μHz}
[2] Sine modulation accuracy is ±(50 ppm +10 μHz)
Pst and Pinst Indication Accuracy
P
st
and P
inst
values are from IEC 61000-4-15, (amendment 1). Note that P
st
and P
inst
indications are only valid for 230
V and 120 V, 50 Hz and 60 Hz. P
st
values are not valid for the current channel.
Voltage Setting P
st
Indication Accuracy
220 V - 240 V
±0.25 %
115 V - 125 V
±0.25 %
Note that long term flicker (P
lt
) can be simulated either by a steady P
st
over a suitable period, or by changing P
st
and
calculating P
lt
from:
3
1
3
N
P
P
N
i
sti
lt
∑
=
=
where P
sti
(i=1,2,3, ...) are different consecutive readings of P
st
. See IEC61000-4-15 for details.
Other Flicker Modes
Extended Flicker functions are provided. The accuracy of these signals is better than 1 %:
• Frequency Changes
• Distorted voltage with multiple zero crossings
• Harmonics with side band
• Phase jumps
• Rectangular voltage changes with duty ratio
1-53. Fluctuating Harmonic Specifications
Fluctuating harmonics are available on voltage and current outputs. Fluctuating Harmonics are not available on a
voltage or current channel if Flicker is already enabled on that channel.
Number of harmonics to fluctuate Any number from 0 to all set harmonics can fluctuate
Modulation depth setting range
[1]
0 % to 100 % of nominal harmonic voltage
Fluctuation accuracy (0 % to ±30 % modulation) ±0.025 %
Modulation depth setting resolution 0.001 %
Shape Rectangular or Sinusoidal
Duty cycle (shape = rectangular) 0.1 % to 99.99 %
Modulating Frequency range 0.008 Hz to 30 Hz
Sine modulating frequency accuracy
±(50 ppm + 10 μHz)
Rectangular modulating frequency accuracy <1300 ppm
[2]
Modulating Frequency setting resolution 0.001 Hz
[1] Fluctuation accuracy is not specified for modulation depth >±30 %.
[2] Accuracy is
±{(50 + 31 x modulating frequency) ppm + 10 μHz}.