DetailsMaxim

Narda ELT-400 Exposure Level Tester/Magnetic Field Meter

This new generation ELT-400 greatly simplifies the assessment process. With the EXPOSURE STD (Shaped Time Domain) mode, the instrument achieves a new standard in the simple but reliable measurement of magnetic fields, whether straightforward or in complex field environments.

Time-consuming and easily-misinterpreted measurements with a spectrum analyzer or a scope 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.

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Feature Specification

Direct Evaluation of Field Exposure - Compared to Major Standards (IEEE C95.6)
Automatic Exposure Evaluation for Various Waveforms
Eliminates the Overestimation that Can Occur with FFT-based Evaluation
Ultra-Wide Frequency Range (1 Hz to 400 kHz)
Wide Measurement Range (up to 80 mT, type-dependent)
Isotropic 100 cm2 and 3 cm2 Probe (complies with standards)
Three-Channel Scope Output

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 <29 g/m3, non-condensing
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)