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Extech Instruments VB400

Extech Instruments VB400
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User's Guide
Pen Vibration Meter
Model VB400
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information@itm.com1.800.561.8187
www.GlobalTestSupply.com
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Extech Instruments VB400 Specifications

General IconGeneral
Humidity Range10 to 90%RH
Data HoldYes
Min/MaxYes
Sound Level Frequency Range31.5Hz to 8kHz
Display BacklightYes
TypeVibration Meter
Frequency Range (Vibration)10Hz to 1kHz
Sound Level Range35 to 130dB
Temperature Range0 to 50°C (32 to 122°F)
Resolution0.1 m/s² (Vibration), 0.1 m/s (Air Velocity), 1 Lux (Light), 0.1 dB (Sound), 0.1°C/°F (Temperature), 0.1% RH (Humidity)
DisplayLCD
Sound Level Measurement Range35 to 130dB
Frequency WeightingA, C
Time WeightingFast, Slow

Summary

Introduction and Safety

Product Features

Lists applications, measurement types, frequency range, display, accessories, battery indicator, and IP rating.

Safety Warning Symbol Explanation

Symbol indicates the user must refer to the manual for further information.

Meter Description and Components

Meter Components Identification

Identifies key parts like display, buttons, sensor, and magnetic base for user familiarity.

Understanding Meter Display Icons

Explains icons for HOLD, Acceleration (ACC), Velocity (VEL), and low battery status.

Sensing Head and Magnetic Base Attachment

Guides on attaching magnetic base or tip sensing head for ferrous and non-ferrous surfaces.

Device Operation

Measurement Preparation Steps

Steps for powering on, checking battery, and attaching sensing heads or magnetic base.

How to Take Measurements

Instructions on mode selection, surface contact, perpendicular holding, and reading display.

Using the Data Hold Feature

How to freeze the display for a stable reading and exit the hold mode.

Maintenance and Standards

Zero Adjustment Procedure for Accuracy

Steps to correct zero drift caused by environmental or age factors for accurate readings.

Battery Replacement Instructions

Instructions for replacing the four AAA batteries, ensuring correct polarity and reassembly.

ISO Vibration Severity Guidelines

Guidance on evaluating vibration severity using ISO 10816 for various machine types.

Technical Specifications

General Meter Specifications

Details display, measurement modes, frequency range, operating conditions, power, weight, and dimensions.

Measurement Accuracy Specifications

Specifies range, resolution, and accuracy for Acceleration and Velocity under defined conditions.

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