Gigahertz Solutions NFA 1000 Operating Manual
3d low frequency analyzer with data logger
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Summary of Contents for Gigahertz Solutions NFA 1000
- Page 1 Made in Germany NFA 1000 NFAsoft Analysis and NFA 400 Configuration Software 3D Low Frequency Analyzer with Data Logger Operating Manual Version 7.3...
- Page 2 Please note: The only significant difference between the NFA 1000 and the NFA 400 in this man- ual is the fact that the NFA 1000 allows a three-dimensional potentialfree measure- ment of the E-field, while the NFA 400 can only be used for one-dimensional poten- tialfree measurements of the E-field.
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Page 3: Table Of Contents
Made in Germany Contents Quick Start Guide .................... 2 NFA 1000 Front Cover ..................3 LEDs / Display / Audio Signals ................ 4 Switches / Push-Buttons / Connectors ............7 How to Measure and Data-Log ..............13 Power Supply ....................15 „NFAsoft“ ......................17 Firmware-Update ....................24... -
Page 4: Quick Start Guide
To allow a simplified freehand measurement, the meter is pre-adjusted with a 16 Hz high pass filter for the mag- netic field and a 50 Hz high pass filter for the electric field (see page 23 for measurements from 5 Hz onwards). - 2 - May 2017 © Gigahertz Solutions GmbH... -
Page 5: Nfa 1000
Made in Germany 2 Front Cover NFA 1000 and NFA 400 Analogous front cover for NFA 1000 and NFA 400 NFA 1000 3D-NF-Analyser AC/DC 5 Hz - 1000 kHz Mode Auto Band Freq. „Ey“ NFA 400: Signal Power tRMS TCO-Band... -
Page 6: Leds / Display / Audio Signals
“Log” mode. If case the false readings persist, please check chapter 9 for further information. - 4 - May 2017 © Gigahertz Solutions GmbH... - Page 7 The LED’s for 16.7 Hz, mains frequency and its harmon- ics up to 2 kHz have a suitable lock-in range to cover mains fluctuations. - 5 - © Gigahertz Solutions GmbH May 2017...
- Page 8 To make it more ergonomic for the user, frequencies below the nominal display resolution (that is < 0.1 V/m or < 1 nT) are not indicated by an LED-signal but will still be recorded down to the noise level. Hysteresis: 9/12% resp. 45/50%. - 6 - May 2017 © Gigahertz Solutions GmbH...
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Page 9: Switches / Push-Buttons / Connectors
LED next to the display. XYZ = Axis indication Here, the NFA 1000 will show either the magnetic or the electric field in its three in- dividual components depending on the field type from which the switch was set to “XYZ”, whereas the NFA 400 will only show the individual components of the mag-... - Page 10 1.5 m to the object of measurement. For E-field measurements against earth potential, please plug in the grounding cable switch to “M3D” (automatic adjustment) on the NFA 1000 switch to “Ey” on the NFA 400. 4.3 Sockets for Inputs and Grounding...
- Page 11 16.7 Hz LED will remain unlit. However, the filter only applies to the display in the “Auto”-mode and to loggings in the “All3D”- channel. The aim is to tranquilize the display. Nevertheless, possible frequency components up to 16.7 Hz can be displayed by using “Band” and “Freq.”. - 9 - © Gigahertz Solutions GmbH May 2017...
- Page 12 Tolerances are much higher than using the tRMS analysis. It cannot be used with the floating potential E-field measurement for the time being. - 10 - May 2017 © Gigahertz Solutions GmbH...
- Page 13 In order to make use of this speed advantage, your SD card reader needs to be specified „SDHC“ which is standard for units built 2008 or later. For older units inexpensive adaptors are available. The SD-card reader is included in the scope of supply of the NFA 1000 only. - 11 - ©...
- Page 14 NFAsoft to the corresponding recording times in the graph- ic. Please note that the WAV file needs to be saved in the same folder as the LOG file. - 12 - May 2017 © Gigahertz Solutions GmbH...
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Page 15: How To Measure And Data-Log
These recordings can be annotated by real-time audio recordings which will be as- signed automatically to the respective measurement for replay. The following chapters 5.2 and 5.3 are only relevant for the NFA 1000. 5.2 Guided 9 Point Measurement of Sleeping Areas For alternating electric fields, the guidelines issued by the VDB e.V., Germany, require a detailed analysis of the floating potential... - Page 16 “hit“ the measurement point, if you use a holder then withdraw quickly to a minimum distance of 1.5 m and keep still there in order to avoid movement-induced "pseudo-fields”. - 14 - May 2017 © Gigahertz Solutions GmbH...
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Page 17: Power Supply
250-500 complete charge cycles. In this case please always replace both batteries. Please see chapter 9 for information on the initialization of the capacity display. - 15 - © Gigahertz Solutions GmbH May 2017... - Page 18 This procedure will also be logged, and should be marked with an audio note. This will be accessible when evaluating the logged data on the PC. Now potential disturbances can be noted on each axis and corrections be made, if necessary. - 16 - May 2017 © Gigahertz Solutions GmbH...
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Page 19: Nfasoft
(recorded note). 7.2 Data Analysis: Longterm Recordings Double-click the appropriate log file for analysis. For longterm recordings the follow- ing window will open (check chapter 7.2 for 9 point measurements): - 17 - © Gigahertz Solutions GmbH May 2017... - Page 20 You may just as well use the “right” and “left” arrows of the keyboard. Zooming of the time on the x-axis is also possible via the “View” menu. - 18 - May 2017 © Gigahertz Solutions GmbH...
- Page 21 In this case the sum of the frequency specific channels may well be higher than that of “All3D”. The 95th percentile is calculated heuristically. If the possible deviation exceeds 10%, it will be not- ed in parenthesis after the figure in absolute terms. - 19 - © Gigahertz Solutions GmbH May 2017...
- Page 22 “All” – zooms out the x-axis and displays the complete data set on the data plot. The keyboard “A” keys can alternatively be used. Use the arrow keys to take over the functions of the mouse. - 20 - May 2017 © Gigahertz Solutions GmbH...
- Page 23 HF-Analyser settings during the recording period. nT <> mG This function allows to subsequently convert a chosen channel’s data from milli- Gauss to nanoTesla and vice versa. - 21 - © Gigahertz Solutions GmbH May 2017...
- Page 24 “Edit” in the menu offers you the possibility to copy the illustrations into your report, also individually. The evaluation of the 6- Point-Measurement is done analogous to the 9-Point-Measurement. - 22 - May 2017 © Gigahertz Solutions GmbH...
- Page 25 “All3D”. (For more information on this matter see chapter 9). - 23 - © Gigahertz Solutions GmbH May 2017...
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Page 26: Firmware-Update
Recalibration of the battery capacity display (please see next page: Chapter 9) Please differentiate: With „NFAsoft“ the firmware can be configured and the user settings stored in the file „CONFIG.NFA“. This has nothing to do with the firmware itself. - 24 - May 2017 © Gigahertz Solutions GmbH... -
Page 27: What If
There is no recording (status LED does not turn green) Insert or unlock SD-card! (Push micro switch on the left of the card upwards) - 25 - © Gigahertz Solutions GmbH May 2017... - Page 28 DISPLAY in the “Auto” mode and to recordings made in the “All3D” channel. The aim is to tranquilize the display. Neverthe- less, the device may well identify possible frequency compo- nents at 16.7 Hz when using “Band” and “Freq.”. - 26 - May 2017 © Gigahertz Solutions GmbH...
- Page 29 … in an (almost) field-free area: the indication of the dominant frequency is unpredictable. In fields of minimal values the indication of the dominant fre- quency is a matter of pure stochastic - 27 - © Gigahertz Solutions GmbH May 2017...
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Page 30: Details On
Solution: Hold on to the middle into the isolating material, so part of the contact on the plug there is no connection with a tong, and screw back the isolation material WRONG Correct - 28 - May 2017 © Gigahertz Solutions GmbH... - Page 31 NFAsoft. The audio files (.wav) will only be displayed in the diagram if they are stored in the same folder as the LOG-file and if they are not renamed. - 29 - © Gigahertz Solutions GmbH May 2017...
- Page 32 Made in Germany Hersteller / Manufacturer Gigahertz Solutions GmbH Am Galgenberg 12 90579 Langenzenn Germany Tel : +49 (9101) 9093-0 Fax : +49 (9101) 9093-23 www.gigahertz-solutions.de / www.gigahertz-solutions.com Ihr Partner vor Ort / Your local partner...