Skittenstrømfilterene demper støy fre det elektriske anlegget ved at den fjerner uheldige frekvenser som rir på de rene sinusfrekvensene i strømnettet. Det er særlig sparepærer, lysstoffrør og alt av elektronisk utstyr som lager disse frekvensene. Skittenstrømen måles med en skittenstrømmonitor som puttes i vegguttaket. Man legger til filtere i den sammme kretsen til den ønskede effekten er oppnådd.
Dette apparatet har de samme funksjonene som HF58B men kan i tillegg måle radarstråling.
# The radar module sets standards in this category of devices. Its functions and features are tailored to the needs and practical experiences of the building biology. Due to its comparably low price, it is often also used for scientific and industrial purposes, especially in the cell phone and wireless sector.
In addition to the full functionality of the HF58B: – A switch for 2 MHz video bandwidth, allowing especially precise measurements, also of ultra short RADAR signals within the frequency range subject to measurement with a minimum pulse length of up to 0.5 micro seconds, as well as of UMTS-FDD/3G. – Especially high speed of response in the operational mode peak hold (patented).
Technical Data: Frequency Range: 800 MHz – 2.5 GHz (3.3 GHz with increased tolerance) Measurement Range: Power flux density: 0.01 – 19,990 µW/m² Accuracy: Basic accuracy including linearity tolerance : +/- 4.5dB Zero offset and rollover +/- 7 digits Sensor: Optimised logarithmic periodic antenna: Less ripple, better directionality, improved shielding vs. ground, continuous LED-monitoring of quality of connections Audio Analysis: Identification of pulsed radiation sources (mobile radio (GSM, UMTS/G3), cordless telephones (DECT), WLAN (Bluetooth), air-traffic control radar) by means of an acoustic signal proportional to the modulation frequency Electric power supply: Rechargeable highpower 9.6 Volt NiMH battery pack inside the meter, average operation time: 7 – 8 hours Low-Batt. indication, auto-power-off AC-adaptor for charging and long-term-operation included Signal Rating: Display of peak value, peak hold as well as average value (switchable) A quantitative differentiation between pulsed and un-pulsed radiation – a unique feature within the broadband measuring technology Outputs: An AC- and a DC-output (AC: demodulated signal) Weight: 0,82 kg
Scope of Delivery: – Measurement device – attachable log.-per. antenna – incl. cable – NiMH battery inside the meter – mains adaptor – battery charger – various adaptors – detailed instructions manual – plastic case. in the operational mode peak hold (patented).
Ekte 3D potensialfri måling av elektriske felt. Utvidet frekvensanalyse basert på optimalisert FFT opp til 32 KHz og bredbåndsverdier over 32 KHz. Du kan velge ekte peak målinger i bredbåndsområde. Opsjon: Integrert transientopptaker opp til 1 MHZ med mange timers opptak. Ta en kikk på Gigahertz sine sider for full oversikt! www.nfa-meters.com
An innovative step forward in the scope of LF analysis: The NFA 1000 is both, a precise 3D magnetic field logger as well as a high-resolution potential-free E-field cube, all in one meter among the professional devices (patented technology) supported by the comforting certainty of having the complete technical expertise of Gigahertz Solutions behind it.
The essence of all devices is a high-capacity processor able to analyze the field situation with an axe-specific FFT and a sampling rate of 110,000 data records per second, and to record all data on a standard SD-card. It is furthermore possible to connect external probes, and to simultaneously record the corresponding measurement values (available for high frequency and for static fields).
The easy to operate PC program NFAsoft with its revolutionary statistical functions as well as evaluation functions provides a quick overview and if necessary an analysis down to the last detail.
3D-LF-Analyser with data logger NFA 1000 for the most in-depth analysis – our masterpiece! Innovative alternative to the ME series based on a superior concept for efficient data acquisition of electric and magnetic fields, extensive long-term recordings of all relevant parameters and facilitated interpretation and documentation of the acquired data. Features: * Real 3D potential-free electric field measurement, patent pending. * 3D measurement of the magnetic field in a truly isotropic point. * Separate recordings of railway and grid frequencies as well as higher harmonics with true RMS valuation (16.6 Hz | 50/60 Hz | 100/120 Hz plus even harmonics | 150/180 Hz plus uneven harmonics | other frequencies < 2 kHz | all > 2kHz) * Measures 110,000 samples per second, the maxima of which are recorded up to 10 times per second on the 4 GB SDHC memory card supplied. Due to the simultaneous and continuous sampling of frequency and axis information you won’t miss even the smallest peaks. * Voice recording of audio notes to facilitate measurement and interpretation of recordings. * Broadband peak measurements (genuine peak of a wave) as a firmware update in preparation. * Optional, in preparation: Wireless data transfer to external display unit /PC. * Supplied with revolutionary PC evaluation software: Super fast real-time presentation, statistic functions (e.g. 95. percentile), analysis tool for Dirty Power. * Li-Ion rechargeable batteries for up to 48 hours of continuous recordings. External power supply possible (power adapter included).
FF3 er et bånpass filter tilpasset instrumentene HF35C og HF38B. Med dette filteret er det enkelt å finne hvilke strålingskilder som er dominerende. Ved hjelp av en glidebryter velger du den kilden du er interessert i (f. eks. DECT) og avleser på instrume. Til HF 35 C, HF 38 B, HF 58 B, HF 59 B.
#Service-specific frequency filter FF3 Recommended for: HF35C, HF38B. The service specific filters always only show the preset radio service, and suppress all other frequencies. Evaluates each radio service separately * To be connected between the antenna cable and the antenna input socket of the measurement device (by the operator). * Cascadable with all amplifiers and attenuators. * Also allows a broadband measurement without additional transmission loss, which means the filter can remain attached to the measurement device. * Comprises the most common sources of radiation.Very good selection of the chosen radio services. * Possible exposures to sheath currents on the cable behind the filter can be additionally suppressed with the help of a free of charge modification of your HF-device. Please do not hesitate to contact us.
Frequency Range: ALL / GSM9 / GSM18 / DECT / UMTS / WLAN Accuracy: Typical suppression of unwanted frequencies : > 25-30 dB, GSM1800 vs. DECT eff. 20-30 dB. Power supply: 9 V battery
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