Narda 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)