Fluke 6105A - General Electrical Specifications; Amplitude;Frequency Limits; Open and Closed Loop Operation

Introduction
General Specifications 1
1-7
1-15. General Electrical Specifications
Voltage/Current amplitude setting resolution 6 digits
Range of fundamental frequencies 16 Hz - 850 Hz
Line frequency locking 45 Hz - 65.9 Hz at user’s discretion
Frequency accuracy
±50 ppm
Frequency setting resolution 0.1 Hz
Warm up time to full accuracy 1 hour or twice the time since last warmed up
Settling time following change to the output 0 to 10 seconds
Nominal angle between voltage phases
120 °
Nominal angle between voltage and current of a phase
0 °
Phase angle setting
±180 °, ± π radians
[1]
Phase angle setting resolution
0.001 °, 0.00001 radians
[1]
Maximum number of voltage harmonics 100 including the 1
st
(fundamental frequency)
Maximum number of current harmonics 100 including the 1
st
(fundamental frequency)
[1] Switching between phase set in degrees, phase set in radians and back may not be consistent because of calculation rounding
errors.
1-16. Amplitude/Frequency Limits
Percentage of Maximum Output with Frequency
0 %
20 %
40 %
60 %
80 %
100 %
120 %
1 10 100 10000
Frequency
16 Hz
850 Hz
6 kHz
% of Full Range
2850 Hz
1000
9 kHz
Sinewaves
(850Hz maximum)
and harmonics
Modulation
products
Interharmonics
only
• If the 50 A or 80 A option is fitted, the range minimum settable fundamental frequency is 40 Hz and the maximum harmonic
frequency is 3 kHz.
• Although the minimum settable fundamental frequency is 16 Hz, modulated waveforms may generate frequency components
below that, including DC.
• A DC component of up to 50 % of range may be added to all voltage and current ranges except 50 A and 80 A.
• If the bandwidth limit is enabled, maximum frequency is 1.5 kHz.
1-17. Open and Closed Loop Operation
Full accuracy for pure sine or sine plus harmonics is achieved by using analog and digital feedback systems (closed
loop). When any of: Flicker, Fluctuating harmonics, Dip/Swell or Interharmonics are applied, the digital system is
automatically uncoupled (open loop). Initial performance is as described in the 1-year accuracy column but
performance degrades with time as described by the stability column. Full accuracy can be restored by momentarily
disabling whichever of Flicker, Fluctuating harmonics, Dip/Swell or Interharmonics are enabled, or by changing the
value of the sine wave or any harmonic for that channel.