Extech VB450 User guide

USER GUIDE

Vibration Meter

Model VB450

EXTECH INSTRUMENTS

Introduction

Thank you for selecting the Extech Instruments Model VB450.

The VB450 is a portable vibration meter consisting of an acceleration sensor and a digital measurement display circuit. It can be used to measure vibration displacement, speed (or intensity) and acceleration of mechanical equipment. Equipment such as fans, pumps, compressors, motors, etc. can be tested.

This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support.

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EXTECH INSTRUMENTS

Safety Notes

Warning: Use extreme care when using this vibration meter to test mechanical devices. Damage to meter and injury to persons can occur if this meter is used in a manner not specified in this User Guide or if nominal, preparatory safety measures are not taken. Please refer to, and follow, the safety directives below.

oDo not take measurements on devices where the range is known to be, or expected to be, outside the specified

measurement range of this device.

oDo not use this instrument if its housing appears cracked, chipped, or otherwise damaged.

oDo not use this instrument if the sensor or its cable appears damaged or compromised in any way.

oReplace the battery as soon as the low battery symbol appears on the meter display.

oRemove the battery if the device is to be stored for > 60 days.

oNever dispose of batteries in a fire. Batteries may explode or leak.

oDo not attempt to charge the 9V battery. The supplied 9V battery is not rechargeable. This meter was not designed to

use rechargeable batteries.

o If the meter operates abnormally, stop testing and have the unit serviced before further use.

o Never use the meter in a wet environment or in an atmosphere of combustible or explosive gas.

oDo not open the meter housing; there are no userserviceable parts. Contact Extech Instruments directly or contact point-of-sale personnel for service inquiries.

oProtect the meter’s LCD from shock or vibration; allow only the magnet and sensor to touch the devices under test.

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