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Fluke 345 [61/80] Harmonics
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Power Quality Clamp Meter
Measurement Function Overview
47
The single scale display shows the waveforms at maximum magnification with
the V and A scales at either side of the waveforms, as shown in the following
display.
eln31.bmp
The measurement cursor may be positioned using the keys FG and
the time (T=n ms) is indicated on moving the marker.
LHarmonics
Harmonics are sinusoidal voltage and current with a frequency that
corresponds to an integer multiple of the fundamental of the mains (line)
voltage. Any signal can be split into an infinite number of sine waves of
different frequency and amplitude. The contribution of each of these individual
sine waves is represented in a bar chart up to the 40
th
harmonic. The smaller
the harmonics (starting from the 2
nd
harmonic, as the 1
st
is the fundamental),
the better the power quality. Harmonics are an indication of the distortion
present in the measured parameter. This is displayed as % total harmonic
distortion (%THD) or distortion factor (%DF).
Harmonics may be represented as a percentage of the fundamental value
(%H1) or as a percentage of the measured RMS value (%RMS) (See Table 6).
Содержание
- Power quality clamp meter 1
- Power quality clamp meter users manual 1
- Users manual 1
- Limited warranty and limitation of liabilit 2
- Limites de garantie et de responsabilite 3
- Pour enregistrer votre produit en ligne allez à register fluke com 3
- Garanzia limitata e limitazione di responsabilità 5
- Per registrare il prodotto in linea visitare il sito register fluke com 5
- Garantía limitada y limitación de responsabilidad 6
- Para registrar su producto en línea visite register fluke com 6
- Garantia limitada e limitação de responsabilidade 7
- Para registrar produtos on line visite o site register fluke com 7
- 如要在线注册您的产品 请访问 register fluke com 8
- 有限担保和有限责任 8
- Table of contents 9
- Title page 9
- List of tables 11
- Table title page 11
- Figure title page 13
- List of figures 13
- Introduction 15
- Power quality clamp meter 15
- Symbols 15
- Safety instructions 16
- W x warning 16
- Warning 16
- Electrical data 18
- Specifications 18
- Users manual 18
- Power quality clamp meter 19
- Specifications specifications 19
- Users manual 20
- Power quality clamp meter 21
- Specifications specifications 21
- Users manual 22
- Power quality clamp meter 23
- Specifications specifications 23
- Users manual 24
- General data 25
- Power quality clamp meter 25
- Specifications specifications 25
- Proper usage 26
- Qualified personnel 26
- Safe operation 26
- Accessories 27
- Electrical connections 27
- Risks during clamp meter operation 27
- Warranty 27
- Device shutdown 28
- Maintenance and repairs 28
- Measuring inputs and power adapter 29
- Power adapter and usb connection 29
- Voltage measuring input 29
- Design and functions 30
- W x warning 30
- Design and functions design and functions 31
- Figure 4 345 front view 31
- Figure 4 shows the front view of the 345 power quality clamp meter 31
- Front view 31
- Power quality clamp meter 31
- Tactile barrier 31
- Figure 5 rear and side view 32
- Figure 5 shows the rear and side view of the 345 power quality clamp meter 32
- Rear and side view 32
- Users manual 32
- Check the shipment 33
- Initial setup 33
- Preparing clamp meter for use 33
- Using the clamp meter 33
- W x warning 33
- Switching the clamp meter on 34
- Connecting sequence 35
- Connection to circuits 35
- Switching the device off 35
- W x warning 35
- Overview 36
- Voltage and current measurements 36
- W x warning 36
- Single phase power measurement connection 38
- Balanced three phase power measurement connection 39
- Configuration 40
- Operating controls and display 40
- Available battery power is indicated as a set of bars four bars indicate maximum one bar warns of minimum power and no bars indicates batteries may fail within the next 30 minutes all levels are approximate 41
- Configuration configuration 41
- Display symbols 41
- Figure 10 details the display symbols of the clamp meter 41
- Figure 10 display symbols of clamp meter 41
- Power quality clamp meter 41
- All basic adjustments of the clamp meter are made through the main menu 42
- Figure 11 shows the choices available when navigating through the display 42
- Navigation and measuring keys 42
- Navigation through the display 42
- Table 2 shows the keys and their respective functions 42
- Use the navigation keys to navigate through the display and the menus 42
- Basic adjustments required before measuring 43
- Before making measurements some basic items must be considered such as 43
- Measurement setup 43
- Measurement setup measurement setup 43
- Power quality clamp meter 43
- Voltage range settings 44
- Additional instrument settings 45
- Current range settings 45
- Displaying measurements 47
- Measurement tips 47
- Measurements 47
- During the measurement process the display may be capture for viewing or later download 48
- Saving measurement screens 48
- The required measurement parameters can be displayed by pressing their associated keys 48
- To initiate screen saving the following message is displayed 48
- To save a measurement screen 48
- Viewing saved screens 49
- Logging tips 50
- E to end loggin 55
- Measurement function overview 56
- Voltage measurements 56
- Measurement function overview measurement function overview 57
- Power quality clamp meter 57
- The following nominal value display screen is shown by default on entering the volts measurement mode 57
- Current measurement 59
- D waveforms 59
- Measurement function overview measurement function overview 59
- Navigation around the measurement screens and recording current are carried out in the same way as in the voltage mode 59
- Power quality clamp meter 59
- The measurements available in current measurement mode are described in table 4 59
- The measurements available in waveforms mode are described in table 5 59
- Waveforms 59
- Harmonics 61
- L harmonics 61
- On first selecting the harmonics mode the ac rms voltage and distortion factor are displayed as shown following display 62
- Other associated measured values are available by pressing the 62
- A detailed picture for current harmonics is presented in the same way 64
- The point at which input is over or under range is displayed as measured values in the following v harmonics screen example 64
- Users manual 64
- Harmonic recording 65
- The measured power and associated variables for this function are described in table 7 68
- W power 68
- Measurement function overview measurement function overview 71
- Power quality clamp meter 71
- The three phase power measurement and associated variables for this function are described in table 8 71
- Three phase power 71
- X three phase power 71
- Current 72
- I current 72
- I recording playback 78
- Recording playback 78
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