Fluke 1735 User Manual - Page 67

Total Harmonic Distortion, Specifications, General, Temperature Ranges

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Power Logger Specifications Total Harmonic Distortion THD= 50 ∑ (Vh )2 h=2 ×100% V1 Total Harmonic Distortion V1 to RMS of the fundamental Vh to RMS of the h-th harmonic ∑ k − factor = 50 h=1 ⎜⎜⎝⎛ I Ih RMS ⎟⎟⎠⎞2 ⋅ h2 k-factor Ih ... h-th harmonic (amps) IRMS ... RMS amps h ... harmonic order Specifications General Display: Quality: Memory: Interface: Sample rate: Line frequency: ¼ VGA Graphic Color transmissive displays 320 x 240 Pixel with additional background lighting and adjustable contrast, text and graphics in color. Developed, designed and manufactured according to DIN ISO 9001 4 MB Flash memory, from this 3.5 MB for measuring data; USB/RS232 USB with Mini USB B socket 10.24 kHz 50 Hz or 60 Hz, user-selectable, with automatic synchronization Temperature Ranges Working temperature range: Storage temperature range: Operating temperature range: -10 °C to +50 °C -20 °C to +60 °C 0 °C to +40 °C 57

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Power Logger
Specifications
57
Total Harmonic Distortion
%
100
1
)
(
50
2
2
×
=
∑
=
V
V
THD
h
h
Total Harmonic Distortion
V1 to RMS of the fundamental
Vh to RMS of the h-th harmonic
∑
=
⋅
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
=
−
50
1
2
2
h
RMS
h
h
I
I
factor
k
k-factor
I
h
… h-th harmonic (amps)
I
RMS
… RMS amps
h … harmonic order
Specifications
General
Display:
¼ VGA Graphic Color transmissive displays 320 x 240 Pixel
with additional background lighting and adjustable contrast,
text and graphics in color.
Quality:
Developed, designed and manufactured according to DIN ISO
9001
Memory:
4 MB Flash memory, from this 3.5 MB for measuring data;
Interface:
USB/RS232 USB with Mini USB B socket
Sample rate:
10.24 kHz
Line frequency:
50 Hz or 60 Hz, user-selectable, with automatic
synchronization
Temperature Ranges
Working temperature
range:
-10
°
C to +50
°
C
Storage temperature
range:
-20
°
C to +60
°
C
Operating temperature
range:
0
°
C to +40
°
C