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A-16 Technical Specifications LxT Manual
CBL139 AC/DC output cable with an applied acoustic field of 74 dB at 1 kHz in accordance with the
following directives:
• 89/336/EEC The Electromagnetic Compatibility Directive and its amending directives
has been designed and manufactured to the following specifications:
• EN 50081-1 (1992) - Electromagnetic compatibility - Generic emission standard Part 1. Residen-
tial, commercial, and light industry.
• EN 50082-2 (1995) - Electromagnetic compatibility - Generic immunity standard Part 2. Industrial
environment.
1/1 and 1/3 Octave Filters
The 1/1 and 1/3 octave filters (LXT-OB1 and LXT-OB3 Options) comply with all requirements of IEC
61260:1995 including amendment 1 (2001) for Class 1. These digital filters are sampled at a rate of
51,200 samples per second, with base X10 center frequencies and having real-time performance for all
filters. The 0 dB gain setting is the reference range and the reference input signal is 1 Volt rms at 1
kHz.
Frequency Range
1/1 Octave Filters: 8 Hz to 16 kHz
1/3 Octave Filters: 6.3 Hz to 20 kHz
Filter Shapes
The following figures present the filter shapes for the 1/1 and 1/3 octave bands centered at 1 kHz.
Overlaid with these curves are the limit curves associated with IEC 61260:1995 Class 1.