(valid for all imaginable waveforms) are directly handled by EXPOSURE STD mode. This completely eliminates the need to analyze the waveform in the time domain using a scope. Even when faced with pulses that include DC fields, the EXPOSURE STD method provides valuable results. The ELT-400 covers all the signal components down to 1 Hz that are relevant in assessing such a situation. Occasionally both the RMS value and the peak value are critical for assessing exposure in the low-frequency range. Both detector types are provided, and are simultaneously activated in the default setting. Depending on the incoming signal and standard selected, the most suitable detector is automatically employed at all times. The necessary weighting factors are also taken into account. The
detectors may also be selected independently for further interpretation of the signal. Detailed knowledge of the field, the test equipment and other auxiliary conditions is necessary to obtain insight into the degree of exposure when using traditional analysis instruments. The exposure level is derived through extensive calculation. Results can be easily misinterpreted or other problems may occur. For example, FFT spectrum analysis tends to overestimate results for the ICNIRP standard. The ELT-400 continuously
monitors the field, and the results are constantly updated. Any change in the field, e.g. due to a power reduction, can be evaluated immediately. Proper evaluation in a personal safety context is achieved quickly and reliably using the STD technique. If the field under test is essentially a single frequency component, broadband mode is also a good choice. The ELT-400 provides an ultra wideband, flat frequency response. The measurement range can handle extremely high field strength levels. Both
detectors, RMS and Peak, are available for broadband measurement. The field strength result is displayed in “Tesla”. NSTS 0107-E0205I-0.0
Exposure Level Tester ELT-400 (1 Hz-400 kHz) - 7092 FIELD STRENGTH MODE
Broadband Field Strength Measurements
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Subject to change without notice
