Narda
Narda ELT-400
Exposure Level Tester / Magnetic Field Meter, 1 Hz - 400 kHz
100 kHz – 3 GHz Gamma di frequenza
0,1 V/m – 300 V/m (campo elettrico) Gamma di misura
Sonde isotropiche intercambiabili per campo elettrico e magnetico Sonde compatibili
Display grafico LCD retroilluminato Display
Valore RMS, picco, media temporale (TWA) Modalità di misura
| Attributo | Valore |
|---|---|
| Gamma di frequenza | 100 kHz – 3 GHz |
| Gamma di misura | 0,1 V/m – 300 V/m (campo elettrico) |
| Sonde compatibili | Sonde isotropiche intercambiabili per campo elettrico e magnetico |
| Display | Display grafico LCD retroilluminato |
| Modalità di misura | Valore RMS, picco, media temporale (TWA) |
| Standard di riferimento | ICNIRP, IEEE, EN 50492, EN 50413 |
| Interfaccia di comunicazione | USB, RS-232 |
| Alimentazione | Batterie ricaricabili NiMH, autonomia fino a 8 ore |
| Temperatura di esercizio | -10°C / +50°C |
| Peso | Circa 1,2 kg (unità principale senza sonda) |
Narda ELT-400 Options:
- ELT-400 - 2304/101 - Set 1: Exposure STD ICNIRP 1998 Gen. Pub., Exposure STD ICNIRP 1998 Occup., Fieldstrength 320 µT, Fieldstrength 80 mT
- ELT-400 - 2304/102 - Set 2: Exposure STD BGV B11 2001 Exp 2, Exposure STD BGV B11 2001 Exp 1, Exposure STD BGV B11 2001 2h/d, Fieldstrength 8 mT
- ELT-400 - 2304/104 - Set 4: Exposure STD IEC/EN 62233, Exposure STD ICNIRP 1998 Occup., Fieldstrength 320 µT, Fieldstrength 80 mT
- ELT-400 - 2304/105 - Set 5: Exposure STD IEC 62311, Exposure STD ICNIRP 1998 Occup., Fieldstrength 320 µT, Fieldstrength 80 mT
- ELT-400 - 2304/106 - Set 6: Exposure STD ICNIRP 2010 Gen. Pub., Exposure STD ICNIRP 2010 Occup., Fieldstrength 320 µT, Fieldstrength 80 mT
- ELT-400 - 2304/107 - Set 7: Exposure STD 2013/35/EU Low ALs, Exposure STD 2013/35/EU High ALs, Exposure STD 2013/35/EU Limbs ALs, Fieldstrength 80 mT
- ELT-400 - 2304/108 - Set 8: Exposure STD EMFV 2016 Low ALs, Exposure STD EMFV 2016 High ALs, Exposure STD EMFV 2016 Limbs ALs, Fieldstrength 80 mT
- ELT-400 - 2300/90.30 - Cable, Probe Extension, 1 m
- ELT-400 - 2260/90.51 - Cable, Serial Interface, Stereo Jack/DB9, 2 m
- ELT-400 - 2260/90.80 - Cable, Interface Analog, DSUB15/3xBNC, 3 m
- ELT-400 - 2244/90.31 - Tripod, Non-Conductive, 1.65 m with Carrying Bag
- ELT-400 - 2244/90.45 - Tripod Extension, 0.50 m, Non-Conductive
- ELT-400 - 2245/90.07 - Transport Soft Case for ELT-400
- ELT-400 - 2300/90.20 - B-Field Probe 3 cm² (Upgrade required for all ELT-400 with firmware version below 2.1 or serial number A-0001 till H-9999)
| Model | ELT-400 |
|---|
NARDA ELT-400 (call for availability)
The Narda ELT-400 Exposure Level Tester is an innovative exposure level meter for measuring magnetic fields in the workplace and in public spaces. The ELT-400 is designed for health and safety professionals in industry, the insurance business and the service industry. The instrument can handle practically any level measurement requested in the low and medium-frequency range, simply and precisely. It is comparable to the sound level meters that are commonly used in the assessment of noise at the workplace.
Time-consuming and easily-misinterpreted measurements with a spectrum analyzer or an oscilloscope are rendered obsolete. Detailed knowledge about the evaluation procedure, field waveform or frequency is no longer needed. The results are reliable and speed and ease of use are significantly improved over all traditional methods.
Features of the Narda ELT-400 include:
- Standard-compliant measurement
- Acceptance testing according to CE standard IEC / EN 62233 and IEC 62311 Generic standard
- Real-time measurement with RMS and peak-detector
- Direct evaluation of field exposure in comparison to major standards
- Automatic exposure evaluation for various waveforms
- Eliminates the overestimation occurring occasionally with FFT-based evaluation
- Very wide frequency range (1 Hz to 400 kHz)
- Wide measurement range (up to 80 mT, type-depending)
- Isotropic 100 cm2-probe (complies with standards)
- Three-axis analogue signal output
- External FFT analysis of signals to determine the frequency components over three-channel analog output (one channel per spatial axis), eg using a digital oscilloscope.
Technical specifications of the Narda ELT-400 include:
- Frequency Range (-3 dB), selectable: 1 Hz to 400 kHz, 10 Hz to 400 kHz, 30 Hz to 400 kHz
- Antenna Type: Magnetic (B) Field
- Sensor Type: Isotropic Coil 100 cm2
- Damage Level RMS: 160 mT The damage level reduces linearly with increasing frequency above 77.5 Hz (1/f )
- Damage Level Peak: 226 mT The damage level reduces linearly with increasing frequency above 620 Hz (1/f ) (The damage level (peak) applies for pulse duration ‰¤15.6 ms and duty cycle ‰¤1/64)
- Measurement Uncertainty: 4% (50 Hz to 120 kHz)
- Mounting Thread: 1/4-20UNC-2B (standard thread)
- Resolution (Range: Low): 0.001%
- Detection, selectable: Automatic according to Selected Standard orRMS (averaging time 1 s) or Peak Value
- Interface (Remote Control and Readout): RS-232 (19200 baud, 8n1, XON/XOFF), 3-Wire, 2.5 mm Stereo Jack
- Operating Temperature Range: -10 °C to +50 °C
- Operating Humidity Range: <95% (30 °C) or
- Weight, Typical: 2 lbs. (910 g) with probe
- Dimensions, Typical: 7.1 x 3.9 x 2.2 inches (180 x 100 x 55 mm) without probe / probe 11.8 x 4.9 O inches (300 x 125 O mm)
