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General| Brand | Larson Davis |
|---|---|
| Model | System 824 |
| Category | Measuring Instruments |
| Language | English |
Provides instructions for unpacking, inspecting, and initially assembling the System 824.
Explains the concept of Instrument Definitions (IDs) and how to select or create them for specific applications.
Guides users through taking a measurement and displaying readings using the SLM&RTA (SSA) instrument.
Explains how to stop, pause, and back erase measurements while taking readings.
Details how to store and recall measurement data from the instrument's memory.
Describes the calibration process, including checking and changing calibration levels.
Explains the functions of the POWER key: turning the instrument on/off, accessing PWR display, and closing menus.
Describes the Power menu items: Status, Settings, and Charge, and their respective functions.
Explains how the RUN/STOP key toggles data gathering mode and restarts measurements.
Describes how the RESET key clears current measurement data, including accumulated values like Leq.
Details the three basic functions of the PAUSE key: pausing, erasing data, and previewing data.
Explains how the SETUP key accesses the menu for selecting, creating, and manipulating instrument settings (IDs).
Describes the TOOLS key for accessing controls and operations like calibration, memory, and settings.
Guides the user through the initial steps of turning on and calibrating the System 824 instrument.
Provides examples of selecting an instrument ID, taking a measurement, and storing the resulting data.
Details how to recall stored measurement data for review at any time.
Explains how to prepare the System 824 by selecting or modifying an Instrument Definition (ID).
Guides on preparing for a measurement by selecting or modifying the Active ID.
Explains how to initiate editing or modification of the Active ID's settings within the Settings menu.
Guides on selecting an Instrument ID (setup) for the System 824, including activating and switching between them.
Presents the SPL, Peak Detectors, and 1/3 Octave Filter Measuring Ranges for the SSA instrument.
Introduces the Logging SLM (LOG) instrument, ideal for applications requiring automatic measurement and storage.
Describes the different displays available for the Logging SLM (LOG) instrument.
Explains the five common displays for Current SLM and Overall SLM views: SPL, Times, Min/Max, Peaks, and TWA.
Details the procedural steps for recalling or activating an ID setting file for all instrument types.
Provides an example of using standard settings in the SSA instrument and applying procedures to other modes.
Explains how to access Check menus, which are specific to current display functions for modifying settings.
Explains how to print reports directly from the 824 to a serial printer, detailing menu options.
Discusses how to define and print tailored reports for SSA and LOG instruments, allowing custom print settings.
Guides on printing customized reports by modifying report definitions at print time via the Print menu's Customize option.
Introduces the 824 Utility software as a tool for controlling, setting up, downloading, and translating 824 data.
Provides instructions for installing the 824 Utility software package from the provided CD-ROM.
Explains how to connect the System 824 to a computer using the CBL006 cable and serial port.
Describes the tool bar functions for the main operations of the 824 Utility program.
Details the default setup window which allows editing, retrieving, creating, and storing setups.
Explains how to retrieve setups stored in the 824 or from a file using the Get Setup button or menu.
Guides on making modifications to user-defined setups and storing them to the 824 or a file.
Guides on displaying measurement data stored in the 824 by selecting Download View.
Explains how to tell the 824 Utility program where to store downloaded measurements.
Guides on selecting file types and downloading measurements from the 824 Utility software.
Explains how to use the Translate View to select and view downloaded records from a .slmdl file.
Explains how to calculate and display RT60 values using autostore ByTime data from the RTA instrument.
Details the RTA settings menu, covering Title, Gain, Bandwidth, Detector, Transducer, and Random Correction.
Explains how to turn triggering on/off, covering Arm, Trigger, End, and Then settings.
Details the Trigger Settings menu, including Trigger Mode, Trigger Level, and Trigger Time.
Describes the End Settings menu, covering End Mode, End Level, End Time, End Samples, and End Logic In.
Explains the options available in the Then Settings menu for determining measurement behavior after ending.
Describes two special RTA IDs that simplify RT60 measurement setup and configuration.
Details how to access RTA Display Views via the VIEW key, covering Live, Leq, Max, Min, and Times.
Describes how to access Autostore Display Views via the VIEW key to view Leq, Max, and Min spectra.
Explains Spatial Averaging facilities allowing spectra to be averaged and stored for later viewing.
Details how NCB and RC are calculated and displayed from any spectral display, based on ANSI S12.2-1995.
Lists the features of the FFT option, including 400 line FFT, Hanning/Rectangular window, and bandwidth options.
Describes various FFT settings, including Title, Gain, Bandwidth, Avg Count, Repeat, Window, Overload Skip, and Transducer.
Details how to access FFT data displays via the VIEW key, covering the live FFT spectrum and snapshot data.
Describes the FFT display showing a live FFT spectrum.
Guides on enabling the 824 audiometer testing firmware option and selecting the AUDTest.AUD setup.
Explains that in SLM+RTA mode, the 824 can be used for frequency, linearity, and crosstalk measurements.
Describes the FFT mode for measurements including harmonic distortion, noise, frequency, linearity, and crosstalk.
Explains the THD display, showing calculation results and criteria for THD computation.
Details the linearity screen for measuring frequency response or amplitude linearity, and setting reference levels.
Introduces the Pulse/FM mode for measurements including pulse and frequency modulation.
Explains how the System 824 calculates integrated levels based on IEC standard 804, defining Leq.
Highlights the main characteristics of the System 824, such as Type 1 SLM, memory, display, and software features.
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