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General| Brand | Rion |
|---|---|
| Model | NA-27 |
| Category | Measuring Instruments |
| Language | English |
Lists parts supplied with the unit for verification and checks for damage.
Describes the layout and components visible from the top of the unit.
Details the controls and connectors located on the side of the unit.
Explains the battery compartment, guide hole, and name plate on the rear.
Describes the strap fastening screw and I/O connector on the bottom.
Illustrates and explains the appearance of the measurement screen.
Covers insertion and replacement of the backup battery.
Details powering the unit via batteries or AC adapter.
Instructions for tripod mounting and trigger input connection.
Guidance on using backlight and adjusting display contrast.
Steps to set the unit's internal clock and date.
Procedures for electrical and acoustic calibration of the unit.
Explains how to navigate and use the unit's menu screens.
Lists the default parameter settings for all menu screens.
Configures measurement modes, times, trigger, and other settings.
Manages memory blocks, store types, and data protection.
Customizes what information is shown on the display.
Configures printer, serial, and optical interface settings.
Measures and displays sound pressure at a specific moment.
Records the highest and lowest sound pressure levels during measurement.
Captures and displays the peak value of the sound pressure waveform.
Calculates the average sound pressure level over the measurement period.
Measures the total sound energy over time for a single event.
Measures the maximum sound pressure level within short time intervals.
Calculates sound pressure levels exceeded for specific percentages of time.
Performs 1/1 and 1/3 octave analysis for instantaneous sound levels.
Performs 1/1 and 1/3 octave analysis for max and min sound levels.
Performs 1/1 and 1/3 octave analysis for equivalent continuous sound level.
Performs 1/1 and 1/3 octave analysis for percentile sound pressure levels.
Describes the graphical displays for 1/1 and 1/3 octave analysis results.
Explains how to select trigger modes: OFF, LEVEL, EXTRN, TIME.
Details how to set trigger level and slope for measurement.
Describes using CMOS logic-level signals or shorting terminals for triggering.
Explains setting measurement start time and repeat intervals.
Stores measurement data and parameters manually.
Configures AUTO1/AUTO2 for single/group storage in SPL and FA.
Procedures for recalling and displaying stored measurement data.
How to delete data from memory blocks.
Calculates and displays power average, sum, or reverb time from stored data.
Explains the functions of various keys on the remote control.
Covers microphone construction, operation, and specifications.
Details the microphone's frequency response and directional properties.
Explains how temperature and humidity affect microphone sensitivity.
Describes amplifier configuration, frequency weighting, and RMS detection.
Details the time weighting circuits and their parameters.
Explains LAeq, LAE, Lx, Lmax/min, Ltm, Lpeak measurement principles.
Discusses the unit's noise floor and how to account for background noise.
Details windscreen use, I/O connector, and filter characteristics.
Lists unit error messages and their corresponding countermeasures.
Provides details on available extension cable models and lengths.
Explains how to connect a level recorder for data logging.
Details connecting and configuring printers for data output.
Lists standards, measurement capabilities, and processing functions.
Details frequency ranges, noise floor, time weighting, and level ranges.
Covers calibration, memory capacity, trigger modes, and functions.
Details display types, power requirements, and interface specs.
Provides specs for microphone, preamplifier, and various I/O ports.
Lists accessories included with the unit and optional equipment.
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