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
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Page 1: Operating Manual
NFA 1000 NFAsoft NFA 400 Analysis and Configu- ration Software 3D Low Frequency Analyzer with Data Logger Operating Manual (Version 6.2) - 1 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011... - 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
Contents Quick Start Guide .................... 4 NFA 1000 Front Cover ..................5 LEDs / Display / Audio Signals ................ 6 Switches / Push-Buttons / Connectors ............9 How to Measure and Data-Log ..............15 Power Supply ....................18 „NFAsoft“......................20 Firmware-Update....................27 What if… (FAQ) ....................28 This manual is based on the firmware version 48 and NFAsoft version 109. -
Page 4: Quick Start Guide
(Chapter 9)! Note: For potential-free e-field-measurements the highest accuracy will be reached when used without the yellow silicone holster. - 4 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH... -
Page 5: Nfa 1000
2 Front Cover NFA 1000 and NFA 400 Analogous front cover for NFA 1000 and NFA 400 NFA 1000 AC/DC 3D-NF-Analyser 5 Hz - 1000 kHz Mode Auto Band Freq. „Ey“ NFA 400: Signal Power tRMS TCO-Band Hold Peak GIGAHERTZ... -
Page 6: Leds / Display / Audio Signals
It will be shown upon switching on the NFA and when logging (see chapter 5.4). Due to the increased power consumption (LEDs, sound signal, etc), the remaining battery life in the operating mode “ON” is reduced by up to 30%. - 6 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © 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. - 7 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- 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%. - 8 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © 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 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 AC/DC = Combined AC/DC-Input The moment you connect an external sensor, its signal will automatically be displayed in mV and recorded, if required.
- 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.”. - 11 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
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Page 12: Sd Memory Card
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. - 12 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 ©... - Page 13 Press and release the “Mode>” button to switch from the primary to secondary measurement fields. The secondary or background measurement field is indicat- ed by a quick flashing LED corresponding to the unit-LED. - 13 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 14 NFAsoft to the corresponding recording times in the graph- 4.10 I/O - Microphone / Headset Allows the connection of a mono headset for dictating or listening to the audio anal- ysis. - 14 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © 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 PM4s then try not to move the instrument after you have “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”. - 16 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...
- Page 17 SD-card to “lock” or “write protect” and rein- sert it. Note: The data will still be recorded! IMPORTANT: Don't forget to unlock the SD memory card finishing the longterm recording! - 17 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
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Page 18: Power Supply
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. - 18 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH... - Page 19 DO NOT TRY TO CHARGE A 9 VOLT BATTERY, whether rechargeable or alkaline, INSIDE THE METER! - 19 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
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Page 20: Nfasoft
The following file types are available (the consecutive numbering is independent from the file type) LOG00001.TXT log file (long time recording) LOG00002.9PM 9-Point-Measurement (sleeping area) LOG00003.6PM 6-Point-Measurement (workplace) REC00004.WAV audio file (recorded note). - 20 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH... - Page 21 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. - 21 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 22 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. - 22 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...
- Page 23 “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. - 23 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 24 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. - 24 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...
- Page 25 “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. - 25 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 26 “All3D”. (For more information on this matter see chapter 9). - 26 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...
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Page 27: Firmware-Update
Please differentiate: With „NFAsoft“ one can configure the firmware, with these user settings being stored in the file „CONFIG.NFA“. This has nothing to do with the firmware update described above. - 27 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011... -
Page 28: What If
The meter turns off after quarter of an hour NFAsoft allows you to change the interval for the auto-power- off feature. (Auto-power-off is deactivated while recording!) - 28 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH... - Page 29 Therefore you cannot use NFAsoft to check the con- figuration of the NFA, but only to instal new configurations. You can save frequently used configurations as presets to a dropdown menu in NFAsoft. - 29 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 30 These pseudo-readings can, if need be, be deleted from the graph by opening the 9PM-file with a text editor and replacing the odd value by “0.0”. - 30 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...
- Page 31 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. - 31 - © Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011...
- Page 32 Fax : +49 (9101) 9093-23 www.gigahertz-solutions.de … .com / ..fr / … .es / ..it Ihr Partner vor Ort / Your local partner Votre partennaire local / Su socio local: - 32 - 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011 © Gigahertz Solutions GmbH...