Minilyzer ML1 User Manual - NTi Audio

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Measurement Functions be displayed to inform the user about the detailed problem. • The new sensitivity is calculated by the <strong>Minilyzer</strong> and shown below USING EXT. REF.: in mV/Pa. • Press the ESC button to exit the calibration mode and return to the LEVEL SPL screen. • Check the calibration by applying the reference signal again to the attached microphone. The sound pressure level of the calibrator shall be shown to confirm the calibration is carried out in good order. Error indications will appear during the calibration caused by low/high input level or the calculated sensitivity is out of the range 2 - 80 mV/Pa. Fig 3.9 Calibration Finished MANUALLY: • Select the setting value xx.x mV/Pa. • Press enter and select with the cursor keys the sensitivity according to the attached microphone, use up/down keys for 1.0 mV/Pa steps and left/right keys for 0.1 mV/Pa steps. The setting range 2 - 80 mV/Pa is supported. Simply press the ESC button to exit from the calibration screen back to the LEVEL SPL screen. The new measurement is started immediately. 26
Measurement Functions THD+N In this mode the <strong>Minilyzer</strong> measures the THD+N (Total Harmonic Distortion + Noise) and the k2 - k5 harmonic distortion. Input Level (RMS) Fig 3.10 THD+N Meter Panel The measurement is carried out in the band from 10 Hz - 20 kHz, expressed in dB or in %. Simultaneously, the LCD shows the actual RMS input level or the 2nd, 3rd, 4th & 5th harmonics distortion below the THD+N result. NOTE The THD+N results are calculated using a restricted measuring bandwidth of 10 Hz - 20 kHz. Besides checking the linear purity of a sine signal - e.g. measuring amount of harmonic distortions - this measurement mode is particularly suited to get a quick idea whether unwanted disturbances like hum are present. 27
Page 1 and 2: Minilyzer ML1 User Manual
Page 3 and 4: Table of Contents: 1. In t r o d u
Page 5 and 6: Introduction Registration Register
Page 7 and 8: Introduction Warnings In order to a
Page 9 and 10: Battery Replacement Introduction Af
Page 11 and 12: Basic Operation Power ON/OFF - Back
Page 13 and 14: Basic Operation Menu Bar The menu b
Page 15 and 16: Basic Operation c. Setup The setup
Page 17 and 18: Basic Operation Inputs and Monitor
Page 19 and 20: Measurement Functions actual range
Page 21 and 22: Measurement Functions Start of meas
Page 23 and 24: Measurement Functions By exceeding
Page 25: c. Calibration Panel Measurement Fu
Page 29 and 30: Measurement Functions The following
Page 31 and 32: An overrange indicator appears for
Page 33 and 34: Measurement Functions Sweep ML1 sup
Page 35 and 36: Measurement Functions b. Time Sweep
Page 37 and 38: 1/3 rd Octave RMS Measurement Funct
Page 39 and 40: Measurement Functions To enter the
Page 41 and 42: Induction Loop Mode 4. Induction Lo
Page 43 and 44: Induction Loop Mode Calibration An
Page 45 and 46: Measurement Functions FSweep Freque
Page 47 and 48: Accessories 6. Accessories MiniSPL
Page 49 and 50: 7. Technical Specification Technica
Page 51 and 52: Technical Specification Technical D
Page 53: Quick Guide Minilyzer ML1 Menu Bar

Minilyzer ML1 User Manual - NTi Audio

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