Larson Davis HVM200 User Manual

Model HVM200

Human Vibration Meter

Manual

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Larson Davis

HVM200

Reference Manual

IHVM200.01 Rev C

Copyright

Copyright 2016 PCB Piezotronics, Inc. This manual is copyrighted, with all rights reserved. The manual may
not be copied in whole or in part for any use without prior written consent of PCB Piezotronics, Inc.

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Disclaimer

The following paragraph does not apply in any state or country where such statements are not agreeable with
local law: Even though PCB Piezotronics, Inc. has reviewed its documentation, PCB Piezotronics, Inc.
makes no warranty or representation, either expressed or implied, with respect to this instrument and docu­mentation, its quality, performance, merchantability, or fitness for a particular purpose. This documentation
is subject to change without notice, and should not be construed as a commitment or representation by PCB
Piezotronics, Inc. This publication may contain inaccuracies or typographical errors. PCB Piezotronics, Inc.
will periodically update the material for inclusion in new editions. Changes and improvements to the infor­mation described in this manual may be made at any time.

Warranty

For warranty information, refer to our Terms and Conditions of Sale on our website at www.larsondavis.com/

TermsConditions.aspx.

HVM200 Purchase Information

Record the serial number and date of purchase below.
Serial Number:_______________________ Date of Purchase:____________________

Recycling

PCB Piezotronics, Inc. is an environmentally friendly organization and encourages our customers to be envi­ronmentally conscious. When this product reaches its end of life, please recycle the product through a local
recycling center or return the product to:
PCB Piezotronics, Inc.
Attn: Recycling Coordinator
1681 West 820 North
Provo, Utah, USA 84601-1341
where it will be accepted for disposal.

Contact Larson Davis

Website: www.larsondavis.com
Worldwide Corporate Headquarters
Larson Davis - a PCB Piezotronics division
Toll-free (in the US):888-258-3222
Phone:[phone]
USA fax:[phone]
E-mail: [e-mail]

HVM200 Reference Manual i-2

Table of Contents

Module 1 Introduction 1-1

1.1 Overview ..........................................................................................................................1-1

1.2 Features ...........................................................................................................................1-1

1.3 Standard Contents ...........................................................................................................1-1

Module 2 Getting Started 2-1

2.1 Overview ..........................................................................................................................2-1

2.2 Powering the HVM200 .....................................................................................................2-1

2.3 Power Button Operation ...................................................................................................2-3

2.4 Downloading the HVM200 Control App ...........................................................................2-3

2.5 Connecting the HVM200 to a Mobile Device ....... ... .... ... ... ... ... .... ... ... ... ....... ... ... ... .... ... ... ..2-4

2.6 Connecting HVM200 to G4 LD Utility ...............................................................................2-7

2.7 Connecting the Accelerometer .........................................................................................2-9

Module 3 Making Measurements 3-1

3.1 Overview ..........................................................................................................................3-1

3.2 Setting Up the Measurement ...........................................................................................3-1

3.3 Making the Measurement .............. .... ............................................................. ... ... .... ... ... ..3-7

3.4 Downloading Data .......................................... ... ... ... .......................................................3-12

Module 4 Changing Features 4-1

4.1 Overview ..........................................................................................................................4-1

4.2 Setting/Syncing Meter Time and Date .............................................................................4-1

4.3 Turning Off/On WiFi Signal ..................................... .... .....................................................4-3

4.4 Upgrade Firmware and Options .......................................................................................4-5

Appendix A Specifications A-1

A.1 General Characteristics ................................................................................................... A-1

A.2 Physical Characteristics .................................................................................................. A-3

A.3 Operational Characteristics ............................................................................................. A-4

A.4 Electrical Characteristics ................................................................................................. A-5

A.5 Reference Values ............................................................................................................A-7

A.6 Measurement Ranges ..................................................................................................... A-8

A.7 Frequency Weighting Curves ............................................ ... ... .... ...... ... .... ... ... ... ... .... ... ... . A-8

A.8 Frequency Weighting Tables .. ... ... .... ... ...... .... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ... ...... .... ... .. A-13

A.9 Integration Weighting Limits .......................................................................................... A-23

A.101/1 & 1/3 Octave Band Filters ...................................................................................... A-29

A.11Standards Met .................................. ............................................................. ... ... .... ... ..A-38

Appendix B Adaptor Resonance & Frequency Response B-1

B.1 Mechanical ...................................................................................................................... B-1

Appendix C Glossary of Terms C-1
Appendix D Regulatory Compliance Statement D-1

HVM200 Reference Manual ii-1

Module1 Introduction

1.1 Overview ...............................................................................................................1-1

1.2 Features ................................................................................................. ...............1-1

1.3 Standard Contents ................................................................................................1-1

1.3.1 Optional Kits .............................................................................................1-2

1.3.2 Optional Accessories ...............................................................................1-2

1.1 Overview

This module describes the features and options available on the HVM200.

1.2 Features

The Larson Davis HVM200 Human Vibration Meter is designed for use
in assessing vibration as perceived by human beings.

The HVM200 provides the following features for vibration measurement:

1.3 Standard Contents

The HVM200 package includes the following contents:

TRY THIS Record the meter serial

number and date of purchase in a safe
place where it can be retrieved, in
case you require customer support.

• Whole body, hand-arm, and general vibration applications

• Wireless mobile interface

• Compact design for easy wear and convenient placement

• Mobile application for configuring, measuring, and viewing vibra­tion data on multiple meters

• Connection and control of multiple meters through WiFi access

• Support for optional 1/1 and 1/3 Octave Band Analysis

• Data analysis and visualization using optional G4 LD Utility soft­ware

• HVM200 Human Vibration Meter and certificate

• BAT018 Rechargeable Lithium Battery

• PSA035 Power Supply and Adapters

• CBL218 USB Type A to micro-B USB Cable

• CBL217-01 Accelerometer Cable (1/4-28 4-pin connection)

• G4 LD Utility Software CD

HVM200 Reference Manual Overview 1-1

1.3.1 Optional Kits

Optional CCS047
Hard Shell Case

• Removable 8 GB SD Memory (in meter)

• Optional license document for HVM support in G4 LD Utility if
purchased

The following HVM200 models provide kits with the following contents:

• HVM200-HA-41F: Standard contents with CCS047 Hard Shell
Case, CCS048-L Hand/Arm Vibration Arm Band, SEN041F
accelerometer, ADP081A Hand Adapter, and SWW-G4-HVM
software license

• HVM200-WB: Standard contents with CCS047 Hard Shell Case,
SEN027 Whole Body Vibration Seat Adapter, and SWW-G4­HVM software license

• HVM200-ALL-41F: Standard Contents with CCS047 Hard Shell
Case, CCS048-L Hand/Arm Vibration Arm Band, SEN041F
accelerometer, ADP081A Hand Adapter, and SWW-G4-HVM
software license

1.3.2 Optional Accessories

SWW-G4-HVM

License to enable HVM100 and HVM200 support in G4 LD Utility

HVM200-OB3

1/1 and 1/3 Octave Band Analysis firmware

HVM200-RAW

Record sampled raw data files

SWW-G4-SDK

G4 software development kit

CCS047

Hard Shell Case for transport and protection of HVM200 and accessories

CCS048-L (large) and CCS048-S (small)

Arm Band for wearing the HVM200

SEN026

Accelerometer for ADP063 palm adapter.

SEN040F & SEN041F

Accelerometers for Hand-Arm vibration measurement

SEN020

Accelerometer for Hand-Arm and general vibration measurements

HVM200 Reference Manual Standard Contents 1-2

SEN027

Seat Adapter, accelerometer, and adapter for whole-body vibration mea­surements

LEARN MORE For more informa-

tion on HVM200 accessories, includ­ing sensors, see “Adaptor Resonance
& Frequency Response” on page B-1

ADP063, ADP080A, ADP081A, and ADP082A

Adapters for accelerometer placement

CBL217-05, CBL216, and CBL217-01

Cables for connection between accelerometers and HVM200 meter

394C06

Hand-held Shaker for vibrational measurement verification

HVM200 Reference Manual Standard Contents 1-3

Module2 Getting Started

2.1 Overview ...............................................................................................................2-1

2.2 Powering the HVM200 ................................................. .... ... ... ... .... ... ..................... 2-1

2.3 Power Button Operation ........................................................................................2-3

2.4 Downloading the HVM200 Control App ................................................................2-3

2.5 Connecting the HVM200 to a Mobile Device ........................................................2-4

2.5.1 Mobile Device Connection Options ..........................................................2-4

2.5.2 Connecting to a Mobile Device via Access Point .....................................2-4

2.5.3 Connecting HVM200 to WiFi Network ......................................................2-5

2.6 Connecting HVM200 to G4 LD Utility ....................................................................2-7

2.6.1 G4 LD Utility Connection Options ............................................................2-7

2.6.2 Connecting the HVM200 meter to G4 LD Utility via USB .........................2-8

2.6.3 Connecting the HVM200 meter to G4 LD Utility via IP Address ..............2-8

2.7 Connecting the Accelerometer ..............................................................................2-9

2.1 Overview

This module provides instructions for setting up and configuring
HVM200 meters for use with the HVM200 Control app and G4 LD Util­ity.

2.2 Powering the HVM200

Before using your HVM200, charge the battery completely by following
these steps:

Step 1 Slide and remove the back battery cover from the HVM200

meter.

FIGURE 2-1 Remove Battery Cover

HVM200 Reference Manual Overview 2-1

Step 2 Insert the supplied battery into the HVM200 by sliding the

Power LED

Status LED

Power Button

Micro-B USB port

battery contacts against the meter power contacts first and
then lowering the other end of the battery into the tray.

TAKE NOTE Make sure the battery

contacts are fully seated against the
power contacts in the meter and that
the battery lies flat in the tray.

TAKE NOTE The Power LED dis-

plays a yellow color while charging.

TAKE NOTE Avoid leaving the bat-

tery drained for extended periods of
time in order to maximize overall
battery life.

FIGURE 2-2 Insert Battery

Step 3 Slide the back battery cover onto the HVM200.
Step 4 Connect one end of the supplied USB cable to the HVM200

Micro-B USB port and the other end to the PSA035 charger.

FIGURE 2-3 HVM200 Communication

LEARN MORE Refer to the back

label of your HVM200 for a descrip­tion of each LED indication, or see
see “LED Indications” on page A-4.

Step 5 In order to get an accurate battery reading, the HVM200

must be fully charged prior to use. When fully charged, the
Power LED displays a solid green color. Charging time may
take from 3 to 6 hours.

HVM200 Reference Manual Powering the HVM200 2-2

2.3 Power Button Operation

Power Button

Status LED

Power LED

The HVM200 has one button. This power button operates all functions
needed for full operation.

FIGURE 2-4 HVM200 Power Button

Turn Meter On

Press power button until the Power LED shows blue.

Start Measurement

Press power button once and the Status LED will show green. It may flash
to indicate run pending. When the green light stops flashing and periodi­cally winks, this means the meter is working and collecting data.

LEARN MORE For further help with

the LED indicators, refer to the label
on the back of the meter, or see “LED
Indications” on page A-4.

Stop Measurement

Press power button once and the Status LED will show red to indicate that
the measurement has stopped.

Turn Meter Off

Press and hold power button just until the Power LED shows blue, then let
go. Wait until both LEDs go dark, this indicates that the meter is now off.

2.4 Downloading the HVM200 Control App

Use your mobile device to find and download the HVM200 Control app
from Google Play or the Apple App Store
“HVM200”.

Table 2.1 Mobile Requirements

Apple Android

Space 2.5MB 2.8M

®

. To find the app, search for

OS Version 7.0 or later 4.0 and up

HVM200 Reference Manual Power Button Operation 2-3

2.5 Connecting the HVM200 to a Mobile Device

With the HVM200 Control app, you can make a direct WiFi connection to the HVM200
from your mobile device.

2.5.1 Mobile Device Connection Options

One HVM200 to multiple mobile devices.

FIGURE 2-5 Mobile Connection

Use HVM200 Access Point to connect meter to one or more mobile
devices.

Multiple HVM200 to multiple mobile devices

FIGURE 2-6 Mobile Connections

If a router is within range, connect the HVM200 to the same WiFi net­work as mobile device(s).

2.5.2 Connecting to a Mobile Device via Access Point

With the HVM200 Control app, you can make a direct WiFi connection to
the HVM200 from your mobile device:

TRY THIS If there is no network

showing, make sure the HVM200 is
turned on.

HVM200 Reference Manual Connecting the HVM200 to a Mobile Device 2-4

Step 1 Open the WiFi settings on your mobile device.

TAKE NOTE Depending on your

Tap here

Menu Icon

mobile device, you may need to per­form this step each time you want to
connect to the HVM200.

Step 2 Connect to the HVM200 WiFi network displaying the serial

number of your meter.

Step 3 Launch the HVM200 Control app to begin controlling the

meter on your mobile device.

FIGURE 2-7 HVM200 Access Point

Step 4 Connect the HVM200 by selecting the meter with the serial

number displayed for your meter.

2.5.3 Connecting HVM200 to WiFi Network

The HVM Control App will be able to connect to the HVM200 as long as
the mobile device is connected to the same wireless local network as the
HVM200.

To establish a WiFi connection over a network with the HVM200 meter,
follow these steps:

Step 1 Launch the HVM200 Control app or the G4 Live Stream

view. Select your meter. Click the menu icon.

TAKE NOTE It is best to make the

initial connection to a WiFi network
while also connected to a PC via
USB, if possible.

FIGURE 2-8 HVM200 App

Step 2 On the HVM200 Menu, select Setup WiFi.

HVM200 Reference Manual Connecting the HVM200 to a Mobile Device 2-5

FIGURE 2-9 WiFi Setup

Signal strength indi­cator and Secured
network icon
(requires password)

Not visible net-

works are previ­ously used but not
currently detected.

Refresh

This meter is set as
an Access Point

LEARN MORE Networks are listed

in the order of greatest signal
strength.

TAKE NOTE If you have already

entered a password and saved a net­work, the HVM200 automatically
connects to the network with the
greatest signal strength.

FIGURE 2-10 Network Settings.

Step 3 Select an available network. If no network appears on the

list, click the refresh button. To connect to a hidden network,

click Add Network and provide network name.

TAKE NOTE The HVM200 supports

WPA and WPA2 WiFi security. Lar­son Davis recommends using secure
WiFi networks.

Step 4 Enter the network password, if required, and click Add

FIGURE 2-11 Enter Network Password

HVM200 Reference Manual Connecting the HVM200 to a Mobile Device 2-6

Step 5 Verify your network connection details by clicking the

newly added network from the list.

FIGURE 2-12 Network Connection Details

Step 6 In the connect screen of the HVM Control App, if the

HVM200 and your mobile device are both on the same local
network, you will see it in the list. Select it to connect.

2.6 Connecting HVM200 to G4 LD Utility

TAKE NOTE G4 LD Utility for

HVM software requires a license.

2.6.1 G4 LD Utility Connection Options

HVM200 to PC via USB Cable

FIGURE 2-13 USB Cable Connection

G4 LD Utility for HVM software provides features for setup, measure­ment, data download, and data viewing.

Using a Micro B USB cable, you can directly connect your PC to meter
and operate it using G4 LD Utility.

HVM200 Reference Manual Connecting HVM200 to G4 LD Utility 2-7

HVM200 to PC via TCP/IP

FIGURE 2-14 TCP/IP Connection

With the meter connected to a WiFi network that has Internet access, a PC
can access the meter as long as it is currently connected to the Internet and
you have the IP address to enter into G4 LD Utility, in addition port for­warding will need to be set up on the gateway or router.

2.6.2 Connecting the HVM200 meter to G4 LD Utility via USB

LEARN MORE For more informa-

tion on working with G4 LD Utility,
refer to the G4 LD Utility Software
Manual.

Step 1 Connect the HVM200 to a PC with the provided USB to

micro-B USB cable. (CBL218).

Step 2 Launch G4 and click Connect.

Step 3 Connect via USB.

Step 4 Click the Live View button. The Live View presents the

same interface as the HVM200 App for working with mea­surements.

2.6.3 Connecting the HVM200 meter to G4 LD Utility via IP Address

LEARN MORE For more informa-

tion on working with G4, refer to the
G4 LD Utility Software Manual.

Step 1 Using previous instructions, connect meter to a WiFi net-

work with Internet access.

Step 2 Launch G4 and click Connect.

HVM200 Reference Manual Connecting HVM200 to G4 LD Utility 2-8

Step 3 Connect via TCP/IP. Click the Add Meter button.

Step 4 Place your cursor in fields and enter the IP address.

Step 5 Once IP address is entered, the Connect button will turn

blue, select it.

TAKE NOTE IP address is the only

required field to add a meter, unless a
password has been created.

Step 6 Click the Live View button. The Live View presents the

same interface as the HVM200 App for working with mea­surements.

2.7 Connecting the Accelerometer

LEARN MORE Refer to the "Hand-

held Shaker for vibrational measure­ment verification" in this manual for
information on selecting the proper
accelerometer for the HVM200
meter.

To connect the accelerometer to your HVM200 meter, follow these steps:

Step 1 Insert the accelerometer cable into the 4-pin connector on

the HVM200 and then rotate the nut on the cable until the
connection is tight.

Step 2 Insert the other end of the accelerometer cable into the 4-pin

connector on the accelerometer and tighten the cable nut.

Step 3 If the HVM200 is not already turned on, press the power

button once, the Power LED will turn blue.

Step 4 Connect the HVM200 to G4 via USB.

LEARN MORE For more informa-

tion on working with G4 tabs and set­tings, refer to the G4 LD Utility
Software Manual.

TAKE NOTE If you are using an

accelerometer with Transducer Elec­tronic Data Sheet (TEDS) capabili­ties, the sensitivity values will
already be displayed for the x, y, and
z axes of the sensor.

HVM200 Reference Manual Connecting the Accelerometer 2-9

Step 5 Click the Setup Manager tab in G4. Under the meter set-

tings (displaying the meter serial number) click the Sensor

tab.

FIGURE 2-15 Sensor Settings

FIGURE 2-16 Sensor Tab

Step 6 Click Sensor List.

TAKE NOTE Sensor information,

including model, serial number, and
sensitivity specifications are usually
listed on the calibration certificate
that comes with an accelerometer.

FIGURE 2-17 Sensor List Identification and Sensitivity

Step 7 In the Sensor List, type the model, serial number of your

accelerometer, and the sensitivity for the x, y, and z axes and

then click Add.

Step 8 Select the accelerometer when it appears in the list and click

Select. The sensitivity values will automatically appear on

the Sensor tab. Click Save. Use the Sensor List to quickly

access and select stored sensors for future measurements.

HVM200 Reference Manual Connecting the Accelerometer 2-10

Module

3.1 Overview ...............................................................................................................3-1

3.2 Setting Up the Measurement ................................................................................3-1

3.2.1 Perform a Calibration Check ....................................................................3-1

3.2.2 Selecting a Setup File Using Your Mobile Device ....................................3-3

3.3 Making the Measurement ......................................................................................3-7

3.3.1 Position for Hand/Arm Vibration ............................................................. ..3-7

3.3.2 Position for Whole Body Vibration with Seat Adapter ..............................3-7

3.3.3 Start/Stop the Measurement ....................................................................3-8

3.4 Downloading Data ...............................................................................................3-12

3.4.1 Working with RAW Data Files ................................................................3-12

3 Making Measurements

3.1 Overview

This module provides an example procedure for performing a vibration
measurement with the HVM200 Control app and G4 LD Utility.

The following example demonstrates procedures for measuring vibration,
including:

• Setting Up the Measurement

• Making the Measurement

• Downloading the Measurement Data

3.2 Setting Up the Measurement

To set up the measurement:

1. Perform a calibration check.

2. Specify a setup file on your mobile device.

The following sections describe these steps in more detail.

3.2.1 Perform a Calibration Check

TAKE NOTE A calibration check on

an HVM200 requires a hand held
shaker like the PCB Model 394C06.

HVM200 Reference Manual Overview 3-1

To perform a calibration check, follow these steps:

Step 1 If you have not indicated sensitivity values for the x, y, and z

axes on the Sensor tab, refer to “Connecting the Accelerom-

eter” to specify these settings.

Step 2 Launch G4 or HVM Control app on mobile device, connect

to HVM200, and click Live View.

Step 3 Click the Menu icon.

FIGURE 3-1 Menu Icon

TAKE NOTE A calibration can only

be made if the meter is stopped and

currently on Live. Performing a cali-

bration will automatically put the
meter in this state.

Step 4 Click Cal. Check on Menu.

FIGURE 3-2 Cal. Check Option

Step 5 Enter the Reference value for the shaker you will use to per-

form the calibration check and click Set. This value is usu-

ally provided in the shaker reference documentation.

Step 6 Attach the transducer on your shaker so that the axis you

wish to check is oriented properly.

Step 7 Start the shaker and note the a

values for each axis, as

rms

follows:

TAKE NOTE The filter is automati-

cally set to the Fb weighting during
calibration check measurements and
restored when finished.

• Values are gray when level has not been checked.

• Values are white when level is being checked.

• Values are red if the axis measurement is complete and the
level varies from the reference value by more than ± 5%.

• Values are green if the axis measurement is complete and
the level is within ± 5% of the reference value.

Step 8 Repeat the process for each axis on the accelerometer.

HVM200 Reference Manual Setting Up the Measurement 3-2

FIGURE 3-3 Calibration Check

Z axis has been
checked and is
within range.

Reference value
from shaker

Shows saved cali­bration checks

Sensitivity settings
specified in setup

Green indicates val­ues are within range.

LEARN MORE If you are using G4

LD Utility software (optional license
required), the last two saved calibra­tion checks are displayed in measure­ment spreadsheets. See the G4 LD
Utility Software Manual for more
information.

Step 9 To save the calibration check, close the Calibration Check

dialog box. Saved calibration check information is displayed
at the bottom of the dialog box when it is re-opened.

3.2.2 Selecting a Setup File Using Your Mobile Device

The HVM200 includes nine default setups in its Settings list. These

default setups correspond to settings typically used for different methods
of measurement.

You can also create new setup files on the Settings list. To create a new

setup file, follow these steps:

Name the Setup File

TRY THIS The easiest way to create

a new setup file is to modify an exist­ing default setup and save it with a
different name.

Step 1 Tap the menu icon on the HVM200 app and then tap Set-

tings.

Step 2 Press and hold your finger on a default Setup File in the Set-

tings list. Select Save As and specify the setup name.

HVM200 Reference Manual Setting Up the Measurement 3-3

FIGURE 3-4 Name the Setup File

TAKE NOTE If you return to the

Setup Manager tab from a settings

tab, you are prompted to save set-

tings. Click Yes to apply the changes

to the setup.

Step 3 Find and click the setup file you just created by scrolling

down the list. The list now displays a report icon next to
your new setup file.

FIGURE 3-5 Select New Setup File

Set Operating Mode, Interval Time, and Weighting

TAKE NOTE The interval time val-

ues represent the span that data is
collected, averaged, and stored
before starting a new sample.

Step 4 Use the bottom right arrow to move to the Setup tab, specify

any changes to your settings and select the Store Raw Data

option if you have it installed and need it for your post-mea-

surement analysis. The Store Raw Data option will greatly

increase the amount of memory required to store the mea-

surement. Click Save.

The supplied HVM200 memory card can store individual file sizes up to 2

GB and more than 6 hours of measurements with the Store Raw Data

option enabled. When not enabled, the card can store approximately 8000
hours of measurements.

HVM200 Reference Manual Setting Up the Measurement 3-4

TAKE NOTE The Wh weighting is

This is the Setting
Menu which will
allow you to jump
to any of the set­tings options at
anytime.

automatically specified for all axes
with the Hand/Arm mode. For more
information on operating mode
options and weighting curves,
“Specifications” on page A-1.

Set Measurement Schedule

FIGURE 3-6 Operation Settings

TAKE NOTE When run duration is

set to 00:00:00 the HVM200 will run

until manually stopped. If the run
duration is set to any other time, the
HVM200 will automatically stop
after acquiring data for the selected
amount of time.

TAKE NOTE If a manual measure-

ment overlaps with the Start Time of

a scheduled measurement, the sched­uled measurement will not start until
the manual measurement has stopped
and any specified delay has passed.

Step 5 If needed, schedule the HVM200 to take a measurement

automatically by selecting the Enable Schedule option on
the Schedule tab. Specify the Start Time, Start Date, End

Date, and Duration. Specify a Delay Start, if needed.

FIGURE 3-7 Schedule Settings

TAKE NOTE Auto-Off is the

amount of time the HVM200 will
remain fully powered if it is not tak­ing a measurement. If a measurement
occurs, this time will reset.

Set OBA Time History, Decibel Reference, and Exposure Settings

Step 6 On the Misc tab, select 1/1 Octave or 1/3 Octave to include

octave band analysis in your measurement data, if you have
the options installed.

HVM200 Reference Manual Setting Up the Measurement 3-5

TAKE NOTE Single and double inte-

The data files for this
Setup will be saved with
this name as a pretext

gration are not allowed when display
units are set to dB.

Step 7 If you plan to choose dB reference units as the Display

Units (Tools tab), select 10-5 or 10-6 as the dB Reference on

this tab; otherwise this selection is ignored.

Step 8 Specify the Exposure Limit and Exposu re Action.

TAKE NOTE The exposure settings

show default values according to the
EU Physical Agents Directive (2002/
44/EC) but can be modified accord­ing to differing standards or needs.

Choose Tools Settings

TAKE NOTE Single integration cal-

culations convert acceleration values
into velocity values; double integra­tion converts acceleration values into
displacement values.

FIGURE 3-8 Misc. Settings

Step 9 On the Tools tab, choose the Display Units and Integration

method. Specify the k-Factor for each axis and type a Data
File Name. Click Save.

TAKE NOTE For whole body mea-

surements, the HVM200 multiplies

the specified k-Factor by the instan-

taneous acceleration for each axis to
produce the summation (value in
the Overall view of the app. K-fac­tors are ignored for general vibration
and hand/arm measurements. See
“Glossary of Terms” on page C-1.

Verify Sensor Settings

FIGURE 3-9 Tools Settings

If you are using an accelerometer with TEDS capability, the Sensor tab

on the HVM200 settings (displaying serial number) are automatically
specified. If your accelerometer does not have TEDS capability and you
have not already specified the settings, refer to the section “Connecting
the Accelerometer” on page 2-9.

HVM200 Reference Manual Setting Up the Measurement 3-6

Verify Installed Options

If you have purchased Octave Band Analysis or Raw Data options, click

the Options tab and verify that they are displayed and selected in the list.

You can deselect this feature temporarily if given measurement does not
require the data.

3.3 Making the Measurement

To make the vibration measurement:

1. Position the HVM200 meter and accelerometer.

2. Start the measurement.

3. Observe data.

4. Stop and annotate the measurement.

The following sections describe these steps in more detail.

3.3.1 Position for Hand/Arm Vibration

For Hand/Arm vibration measurement, follow these steps:

Step 1 Attach the Larson Davis CCS048 Arm Band on the person

being monitored. The end with the transparent cover should
be the farthest from the hand.

Step 2 Insert the HVM200 into the arm band so that the accelerom-

eter connector is nearest the hand.

Step 3 Connect the accelerometer to the HVM200.

TAKE NOTE Refer to see “Mechani-

cal” on page B-1.

Step 4 Attach the accelerometer to an appropriate adapter and place

it so that the vibration that is coupled to the hand can best be
measured.

3.3.2 Position for Whole Body Vibration with Seat Adapter

For whole body vibration measurements using the Larson Davis SEN027
Seat Adapter, follow these steps:

TAKE NOTE The Seat Adapter is

sold with the SEN027 accelerometer
already housed within the adapter
and with the cable already connected
to the accelerometer.

Step 1 Place the seat adapter in the location where the person being

monitored will sit.

Step 2 Connect CBL217-01 to the HVM200 on one end and the

seat adapter cable on the other end.

Step 3 Set the HVM200 meter in a secure location, where it will not

fall from its position.

HVM200 Reference Manual Making the Measurement 3-7

3.3.3 Start/Stop the Measurement

Run Stop

Annotate

Running

Stop

Run Live

Start Measurement

TRY THIS You can also start the

measurement manually by pushing
the power button on the HVM200 for
at least one second after it is stable
(or after the Status LED is red), see
“Power Button Operation” on
page 2-3.

Stop Measurement

Click the Run button that appears on the HVM200 Control app or G4 LD

Utility.

FIGURE 3-10 Meter is stopped

Click the Stop button.

FIGURE 3-11 Meter is running measurement

View Live Data

Observe Data

TRY THIS Alternatively, you can

also schedule measurements auto-

matically on the Schedule tab if you

do not need to observe them.

While meter is stopped and not taking a measurement, click the red Stop
button. A green Live button will appear. To return to stop, press Live

again.

FIGURE 3-12 Viewing Live Data & Meter is stopped

The HVM200 Control app provides the following data displays:

•Overall

• Summation

• X-axis

• Y-axis

• Z-axis

To advance from one data display to the next, click the Next Arrow. To
enlarge a data display, click the Zoom button.

HVM200 Reference Manual Making the Measurement 3-8

The Overall display shows cumulative data for all three axes and their

Current overall root mean
square (RMS) vibration value
according to specified units.

Measurement
Duration Clock

RMS value from the previ­ous second

Overloaded Indicators

Values for each axis

Summation values

Next data display arrow

Battery
Status

RMS: Root mean

square value

PEAK (PK):

Highest instanta­neous value

MIN: Lowest

value

MTVV: Maxi-

mum Transient
Vibration Value

summation for the measurement.

FIGURE 3-13 Overall Data Display

MIN and MTVV are the minimum and maximum whole body and hand/

arm values of the vibration signal with a one second exponential time

weighting. MIN and MAX are the minimum and maximum general

vibration values.

represents the summation of vibration values taken from the X, Y, and Z
axes.

The Summation display provides a real-time graphical representation of

the current summed values from all three axes.

HVM200 Reference Manual Making the Measurement 3-9

FIGURE 3-14 Summation Data Display

Vibration values accord­ing to specified units

Measurement Time

Current a

RMS

value

Current a

PEAK

value

Overall measurement data

X

Y

Z

For more information on summation values, including Vibration Dose
Value (VDV) and the daily vibration exposure value over eight hours
A(8), see the "Glossary" on page C-1.

The Axes displays provide real-time graphical and tabular representations
of current and overall values for each axis, similar to Figure 3-14.

FIGURE 3-15 X, Y, and Z Axes Data Displays

Overload and Under-range Indicators

Overload

LEARN MORE For information on

overload indications on the Status
LED, see “Operational Characteris­tics” on page A-4.

An overload occurs when the signal from the accelerometer exceeds the
input range of the meter.

HVM200 Reference Manual Making the Measurement 3-10