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AutoTest Digital Sound Level Meter User Manual

AutoTest Digital Sound Level Meter
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User Manual
Version 1.1
AUTO
TEST™
Digital sound level meter
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AutoTest Digital Sound Level Meter Specifications

General IconGeneral
BrandAutoTest
ModelDigital Sound Level Meter
CategoryMeasuring Instruments
LanguageEnglish

Summary

Sound Level Meter Features

Design Standards and Measurement Modes

Complies with IEC651/ANSI S1.4, offers instantaneous measurement, A/C weighting, and Fast/Slow modes.

Measurement Range and Outputs

Covers 30-130 dB range and provides AC/DC signal outputs for analyzers.

Sound Level Meter Specifications

Accuracy, Frequency, and Linearity

Details accuracy (±1.5 dB), frequency range (31.5KHz-8.5KHz), and linearity (50dB).

Measuring Levels and Display

Specifies measuring levels (30-130 dBA/dBC), digital display (5 digits), resolution (0.1dB), and bar graph.

Level Ranges and Indicators

Lists selectable level ranges (e.g., 30-80 dB) and over/under range indicators.

Output Specifications and Components

Defines AC/DC output specs and lists microphone type and power supply.

Calibration Procedures

Calibration Process and Recalibration

Instructions for using an acoustic calibrator and the recommended annual recalibration period.

Name and Functions of Controls

Key Components Identification

Identifies the microphone, LCD display, power switch, and battery door.

Measurement Control Switches

Details level range, MAX hold, frequency weighting (A/C), and time weighting (Fast/Slow) switches.

Output Terminals and Calibration

Identifies AC/DC output terminals and the calibration control.

Mounting and Accessories

Identifies the tripod mounting screw and windscreen.

LCD Display Description

Main Measurement Readouts

Describes display of level range, instantaneous value, measured value, and unit.

Status and Mode Indicators

Explains low battery, MAX hold, over/under range, frequency/time weighting indicators.

Graphical Indicator

Describes the level range bar graph.

Pre-operation Procedures

Battery and Power Setup

Covers battery installation, low battery warning, and DC adapter connection.

Operation Guide

Basic Operation Steps

Includes powering on and selecting response, weighting, and range.

Optimizing for Noise Types

Guidance on using FAST for bursts and SLOW for average levels.

Maximum Value Measurement

Explains using the MAX mode to capture and hold peak sound levels.

Usage Cautions and Environmental Limits

Environmental and Usage Guidelines

Specifies operating temperature/humidity limits and warns against wind noise.

Storage and Battery Handling

Recommends removing batteries for long periods of non-use.