Hand-Arm - Dosimètres de vibration Vib@Work
Contents
1. 19 3 41 3GGENERAIBUEES ert eh e em e Paten ete out voee oe ses Gitte ETIN ES 19 3 4 2 USE OF THE ATTACHMENT 19 3 5 OPERATION mec 20 3 6 DATA READING AND DISPLAYING THE RESULTS eee eee enero rns estesa seta seta seen seen aoo 21 3 6 1 BREREQGUISITES 21 3 6 2 SELECTING THE OPERATION TO BE PERFORMED cc cccccccesssccssscesssecesssecsssecessceesseeeses 21 3 6 3 SETTING THE MEASUREMENT CONFIGURATION 21 3 6 4 READING THE SENSOR MEASUREMENTS cccccesssccssscecsscesseccessscesssceessecessscesssseeesaeenaes 21 3 6 5 DISPLAYING THE MEASUREMENT 8 24 3 7 SWITCHING OFF THE SENSORS eere eese seen seen sten setas tasas stas etae sees ases ese sese esse seen s 26 SECTION 4 USING A SINGLE SENSOR COMBINING PARTIAL EXPOSURE 6 52 55 5 27 SECTION 5 CHARACTERISTICS OF THE VIB WORK HAND ARM SENSORS 28 5 1 NORMATIVE REFERENCES eere seen ens sees s ense ens e ens sess enses ens eese s ense ena 28 5 2 FREQUENCY WEIGHTING i ee eun a es eee nona ease o2. A2 8 8 etc are the partial exposure values associated with the various vibration sources 3 6 5 2 Results reports and backup The screen listing the measurement results Figure 22 allows you to enter both the data relating to the operator and the measurement to save the measurement results in a file el button and to create a report Bi button D If you have entered the software keys for each sensor used the results backup provides you with a choice between the following two file formats the viewer format that stores the full vibration history which can be read by the HAViewer software default or the text format which only saves the exposure results If you haven t entered the software keys for each sensor the results may only be stored in text format listing the exposure results only Please contact your distributor if you would like to save the full vibration histories 3 7 Switching off the sensors The sensors are switched off by positioning the on off switch to the rear of the docking station into the Off position 8 There is no on off switch on the actual sensors themselves To switch them off you will need to insert them into the docking station and position the on off switch to the rear of it into the Off position 26 Section 4 Using a single sensor combining partial exposure values If you only have one sensor but the operator is using several machines you ca
3. 8 Ideally you should avoid attaching the sensor to or removing it from the tool during the time that it is performing the measurement blinking amber LED as this may generate vibrations or impact and therefore influence the measurement 20 3 6 Data reading and displaying the results 3 6 1 Prerequisites The docking station must be connected to your PC via the USB cable e Configuration of the communication port should have been carried out already section 2 4 1 You should have entered the data relating to the sensors section 2 4 2 The on off switch to the rear of the docking station must be in the On position 3 6 2 Selecting the operation to be performed Launch the HASensor software and go to the welcome screen by clicking on the Next gt button The screen for selecting the operation to be performed is displayed Figure 19 r Operation Selection Selectthe operation you wantto perform vib work N Operation Get one or more sensors ready to measure Download measures from one sensor or more Sensors Management Configuration Ok mend mm Figure 19 Retrieving the sensor measurements Check Download measures from one sensor or more and click on the Next button 3 6 3 Setting the measurement configuration When retrieving the results of the measurement the measurement configuration screen automatically l
4. connected to a charger or a PC This allows you to prepare the sensors for measurement in a different location to their usage location and to transport them solely with the docking station Please note however that during this period the sensors use the energy from their internal batteries 18 3 4 Fitting the sensors onto tools 3 4 1 General rules e n accordance with regulation the sensors must be attached firmly to the tool and to its handles Any movement of the sensor in relation to the handle may result in consequent measurement errors The idea also involves measuring in the most reliable and reproducible manner the risk for the operator without predicting the way in which he she holds the tools The measurement must be performed as close as possible to the input point of the vibrations in the hand arm system The measurement must be performed on each of the tool grip positions grip positions In such cases you can use the inserts equipped with a screw thread on one side and a small flat section on the other which can be attached to the tool using a special adhesive S Normal attachment collars do not work with certain tools that have domed detach the sensor from the tool an extension cable link between the docking If you wish to perform preliminary or successive tests without having to station and the sensor is available as an optional accessory 3 4 2 Use of the attachment
5. Remind me in 1 year Figure 25 Calibration reminder The countdown is triggered upon the sensor being used for the first time o following calibration The effective calibration date of the sensor may therefore be extended to over a year when the reminder is displayed the period in which the sensor is not used after its calibration is not taken into account 33 Section 8 Updating of the HASensor software Each time the HASensor software is launched and as long as your PC is connected to the internet an available updates check is carried out If an update is available a message is displayed prompting you to download it If for any reason you need to interrupt this update procedure you can always download the new version of the software manually by accessing the link http www vib at work com hasensor publish htm manually The use of any other web browser may result in installation Please use Microsoft Internet Explorer to log on to the update website problems 34 Section 9 GLOSSARY Hand arm vibration The mechanical vibration that when transmitted to the human hand arm system poses a risk to the health and safety of workers causing in particular vascular neurological muscular or bone or joint disorders 2002 44 EC Vibration Directive The 2002 44 EC Directive of the European Parliament and of the Council on the minimum health and safety requirements regarding the expo
6. and must not be used in the presence of inflammable liquids or gas Section 1 Description 1 1 General description The Vib Work hand arm range consists of two types of sensor 200G and 5000G and the HASensor and HAViewer software Used individually or in combination the vibration dosimeters enable the measurement of the hand arm vibration exposure of an operator using hand held or hand guided vibrating tools in accordance with the 2002 44 EC European directive commonly known as the vibration directive In addition to a triaxial accelerometer the sensors also incorporate acquisition processing and storage circuits as well as a rechargeable miniature battery The sensors are therefore autonomous and as a result allow vibration levels to be recorded throughout the operator s entire working period without the need for an cumbersome and fragile wire connection Each sensor also implements anti artefact devices incorporating a mechanical filter in each of the 3 measurement axis These 3 filters together with the specific acceleration pickup manufacturing technology prevent any adverse effects from occurring often encountered when measuring percussive or rotary percussive tools and which result in consequent measurement errors a phenomenon known as DC shift The 200G type sensors are specifically designed for rotary or non percussive alternative tools chain saws brush rakes grinders sanders They can also be used on
7. lower impact generating tools impact wrenches small impact drills The 5000G sensors are specifically designed for highly percussive or rotary percussive tools power chisels rammers concrete breakers perforating tools The docking station allows the use of up to 4 sensors any combination possible of 200G and or 5000G sensors It is connected to a PC via a USB link and enables communication between the PC and sensors It also manages the sensors internal battery charge The HASensor software allows the user e To enter the measurement configuration details tools used by the operator during his her working day position and orientation of the sensors on these tools To prepare the sensor s for measurement To access following a period of use of the tools by the operator the measurements acquired from the sensor s To automatically calculate and display the partial for each tool and total for a given operator exposure values in a simple manner The HAViewer software optional allows the user To display the time related acceleration measurements in graphic format To modify the graphics scale zoom plot colour and marker type modifications etc To define and add comments to areas on the graphs To select or exclude certain areas or tools and to calculate the impact on vibration exposure To simulate the usage periods of the various tools export the measurements in different formats viewer sp
8. on off switch located to the rear of the device into the On position 2 3 4 Installing the HASensor software Click on the Installation of the HASensor software link the HASensor software installs on your PC and starts up automatically e The welcome screen is displayed Figure 2 21 and to setup vibration sensors to tools he she will be using during 1 4 N Figure 2 Welcome screen 2 4 Configuring the HASensor software On the welcome screen click on the Next button The screen below is displayed Operation Selection Selectthe operation you wantto perform Operation 9 Get one or more sensors ready to measure Download measures from one sensor or more Sensors Management Configuration Figure 3 Choosing the operation to be performed The lt button provides access to the configuration of the communication port with the docking station button provides access to the sensor management data The button allows you to set the basic measurement time 2 4 4 Configuring the communication port 2 4 1 1 Prerequisites e The USB driver must be installed e The docking station must be connected to your PC via the USB cable To conduct a test following selection of the COM port a sensor must be inserted into the docking station s COM port e The on off switch to the rear of the docking station must be in the On position 2 4 1 2 Accessi
9. vibration exposure Ai 8 The contribution of a task i to the daily vibration exposure This is expressed in m s The partial vibration exposure relates to the daily exposure from an individual machine or task i where a worker is only exposed to vibration from one tool or process the daily vibration exposure is equal to the partial vibration exposure Exposure action value A value for a worker s daily exposure to vibration of 2 5 m s Above this value the risks from vibration must be controlled Exposure limit value A value for a worker s daily exposure to vibration of 5 m s above which workers should not be exposed Exposure duration This is the daily duration that an operator is exposed to a vibration source User An individual who operates the vibration dosimeters and the corresponding software 35 Operator An individual exposed to vibration through the use of hand held tools in their work 36 Section 10 Support If you encounter any problems with the installation or use of this product support can be provided your distributor e By visiting the http www vib at work com web site e Bysending an e mail to support micromega dynamics com 37 Manufactured by MICROMEGA D Y N A M I C S Micromega Dynamics SA Parc Industriel de Noville les Bois Rue du Trou du Sart 10 B 5380 Fernelmont Belgium Tel 32 0 81248 100 Fax 32 0 81248101 Vib Work is a registered trademark
10. 05 ara Name Total Dose A B 4 17 Comment Figure 22 Measurement results 3 6 5 1 Results table ET These are the RMS weighted acceleration values according to the X Y and 2 axis which have been measured during the exposure period ET an ET This is the value that combines the three values of any for the x y and z axis according to 2 2 2 ay V A rwx T The exposure time is the time range during which the operator is actually subjected to the vibrations of a tool This time range corresponds to the measurement time MT minus the periods during which the tool isn t being used As a result the times during which the tool has been set down or held in the hand without being in operation must not be taken into account in the exposure period The HASensor software determines this period for each sensor used based on the levels measured and their duration Usage Time UT This is the normal usage duration of a tool by the operator during his her working day 24 The measurement time is the interval of time during which the sensor measured If you perform the measurement during the entire usage duration of the tool by the operator during his her working day the usage period is considered as being equal to the exposure time ET this is measured automatically by
11. 1 is displayed Read sensor measures S Transfer measures from the sensorto the PC vib work Type 200G Battery Level 100 Serial Nbr 99200003 Status Reading Complete Measurement Start Time 4 01 2011 13 02 02 Stoptime 4 01 2011 13 04 02 C 0 Plug sensor 99210003 5000G in the COM location of the docking station and click the Read button Figure 21 Reading the sensor measurements 2 22 The instruction line the bottom of the screen prompts you to either click on Next gt if all of the sensors specified in the measurement configuration have been read or to insert the next sensor into the COM port of the docking station In the latter case remove the previous sensor insert the next sensor into the COM port and reinsert the previous sensor into a free port of the docking station Then proceed with reading the next sensor by clicking on the Read button 23 3 6 5 Displaying measurement results Once all of the sensors have been red and you have clicked on Next gt the screen listing the sensors is displayed Figure 22 Measurement Results Sensor Location Orientation ahwx ET ahwy ET ahwz ET ahv ET ET UT Ai 8 Grinder Ultimate Tool Gx20 99200003 200G Back Han 6 55 14 69 6 59 17 38 00 01 35 00 01 35 1 00 Rock Drill Ultimate RD28m 99210003 50000 Righ Side Sensor X 0 4 13 34 10 36 9 8 00 01 35 00 20 00 4
12. 50000 m s 5 5 Storage capacity and autonomy of the sensor e The possible storage duration depends on the chosen base measurement time To Please refer to Table 1 page 9 e Measurement autonomy gt 8 hours Number of battery charging discharging cycles 500 5 6 Physical characteristics of the sensor Dimensions Length Width Height Weight 30g Attachment 33mm 21mm 25mm M5 metric thread 29 5 7 Operating environment of the sensor The sensor is able to operate within a range of room temperatures between 10 and 50 The sensor must recharged in an environment where the temperature falls between 0 and 40 C 5 8 Characteristics of the results displayed by the reader software Permissible error on the RMS acceleration values over a period of 8 hours 0 10m s 200G sensors and 0 70 m s 5000G sensors 5 9 Electromagnetic compatibility e Radiated emissions tested in accordance with EN55022 e Electromagnetic immunity tested in accordance with EN61000 4 8 6 2 3 30 Section 6 Characteristics of the docking station 6 1 Physical characteristics of the docking station Dimensions Length 175mm Width 52mm Height 72mm Weight 310g 6 2 Functions Battery charging locations Communication and Battery Charging Location Figure 23 Docking station Front end On Off switch for inserted Sensors Connection for the USB
13. Ideally it should be inserted into the docking station and the on off switch located to the rear of the station should be switched to the Off position in order to switch the sensor off and to maintain the internal battery charge 28 5 4 Dynamic characteristics of the sensor Parameter Conditions Weighted acceleration indication error according to X Y and Z Sinusoidal load Amplitude 10 m s Frequency 70 58Hz t 236 Sensitivity of the weighted acceleration to temperature variations t of Room temperature 10 to 50 96 96 weighting and frequency response t 230 f lt 3 981Hz 100 26 96 3 981 2 1 10 2 26 96 105 f lt 794 3Hz 12 96 794Hz f 1995H 2 26 96 1995Hz lt f 100 26 96 Amplitude linearity error t of 10 to 50C 926 Linear operating range t of 10 to 50C 60 dB Response to a pulse wave signal RMS value Tolerance for the t 236 96 measurement of vibration exposure time Resolution of the t of 10 to 50C Accuracy of the time measurement t of 10 to 50C 0 1 96 Electrical crosstalk t 236 0 5 96 Transverse sensitivity t 236 Resonance frequency of the accelerometer t 236 10 kHz Shock resistance t of 10 to 50C
14. ROMAGNETIC COMPATIBILITY crees eere sess enses ense eene 32 SECTION 7 SENSOR 33 7 1 ANNUAL beer ata o tb eo PES Poo Dea EUER Ra PEE SU oooi SSe 33 7 2 THREE YEARLY CALIBRATION ivo ceo oot cuve i 33 7 3 REMINDERS RELATING TO THE CALIBRATION 1 33 SECTION 8 UPDATING OF THE HASENSOR SOFTWARE 34 SECTION 9 GLOSSARY 54245 ieoos sas ns cst ceder so epe Rd Deere ner Ne eU 35 SECTION 10 50 i a 37 Declaration of Conformity for the European Union The devices in the Vibo Work product range comply with the following European Union directives Low voltage directive 73 23 EEC e EMC directive 89 336 EEC 8 the EC conformity and in particular the electromagnetic compatibility of this device is not guaranteed e if you are using a charger other than the one supplied e if you are using a USB cable other than the one supplied Warnings Warning relating to the battery Th
15. Vib Work hand arm Dosimeter for measuring the exposure of the hand arm system to vibration User manual HASensor Software Version 0 6 R 2 4 4 0 0 1 0 0 1 5 SECTION 1 DESCRIPTION inicie icone 1 1 1 GENERAL DESCRIPTION eese eene enne tn notae testes ttes esa seen sesso sese seen s sns sns sna snae eoa eaae epa 00 1 SECTION 2 INSTALLATION AND 3 2 1 CONTENT OF THE rie ca eto eor oa E esae erra aora Da eoe onov as Tt aed s orei ve dE poser s eoa a Faser e pa Rua 3 2 2 PREREQUISITES 4 N eee saves Lade unb ee NU Epod Ue EAEE A 3 2 3 INSTALLATION 5 2 4 2 3 1 INSTALLING THE USB 4 2 3 2 CONNECTING THE DOCKING STATION u ccccccccccecscccsscccsssccessecesssecssssccssececsescessscessscecsaseessaes 4 2 3 3 SWITCHING ON THE 4 2 3 4 INSTALLING THE HASENSOR SOFTWARE ccccccessscesssceessecesssccsssccesuecesssecessecessscecsas
16. alue is only taken into account when the sensors are set up this value is then sent to them The selected value is automatically saved and reused You have to set it only when you want to change it The storage capacity of the sensor varies depending on the chosen T time range value The table below lists the maximum storage duration relative to Table 1 Storage duration relative to To time range Storage capacity To in seconds 0 125 1h 42 min 24 s 0 250 h 24 min 48 s 0 500 6 h 49 min 36 s 1 000 13 h 39 min 12 s 2 000 27 h 18 min 24 s 4 000 54 h 36 min 48 s 0 autonomy quite limited by the battery capacity Section 3 Use This section explains how to implement the sensors to perform the vibration exposure measurement of the hand arm system of a given operator The various stages are listed below The majority of the stages are performed using the HASensor software Stage 1 Switching on the sensors Stage 2 Potential battery recharge Stage 3 Preparing the sensors for measurement e The tools that are going to be used by the operator during their working period should be listed e One two sensors should be assigned to each tool If a machine requires two hands for its operation measurements must be taken for both hands the highest value is then used to determine the vibration exposure e The location where each sensor is t
17. base The assembly of the attachment base onto the sensor is illustrated in Figure 17 The base can be attached in two positions within 90201 each other Don t forget to insert the special washer which prevents the screw from loosening as a result of strong vibration or shock Figure 17 Installing the attachment base 19 The sensors can then be fitting by using the clamping collars Figure 18 Figure 18 Example of installation onto a tool handle 8 Special care must be taken when using standard plastic collars They should be tightened securely preferably using a tool and be able to maintain a secure hold under vibration and impact stress 8 Ensure that the sensor base is connected to the handle before and after the measurement 3 5 Operation Following the time delay specified during the setting up procedure the sensor s LED will change to blinking amber This indicates that the sensor is performing the measurement After the time corresponding to the measurement period specified during the setting up procedure the sensors LED changes to blinking red This indicates the end of the measurement At this stage the sensor can be removed from the tool It is also possible to stop a sensor s measurement by inserting it into the docking station or connecting it to the docking station using the cable extension link available as an optional extra
18. bs ve e DOS tSS S Sere ENDO 28 5 3 LIGHT INDICATIONS THE 5 51 28 5 4 DYNAMIC CHARACTERISTICS OF THE 29 5 5 STORAGE CAPACITY AND AUTONOMY THE 5 56 29 5 6 PHYSICAL CHARACTERISTICS OF THE 29 5 7 OPERATING ENVIRONMENT OF THE SENSOR enses ens eese s enne eeu 30 5 8 CHARACTERISTICS OF THE RESULTS DISPLAYED BY THE READER SOFTWARE 30 5 9 ELECTROMAGNETIC COMPATIBILITY ense sens e ens sess enun 30 SECTION 6 CHARACTERISTICS OF THE DOCKING STATION 31 6 1 PHYSICAL CHARACTERISTICS OF THE DOCKING 5 31 6 2 I 31 6 3 OPERATING ENVIRONMENT OF THE DOCKING STATION eee eene een aestas sanas enn 31 6 4 CHARACTERISTICS OF THE sess enses ens eese s enne sena 32 6 5 ELECT
19. cable to the PC Charger Connection Figure 24 Docking station rear end 6 3 Operating environment of the docking station The docking station is able to operate within a range of room temperatures between 0 and 40C 31 6 4 Characteristics of the charger Input 100 240V4c 50 60 150mA Output 5Vpc 1000mA 6 5 Electromagnetic compatibility e Radiated emissions tested in accordance with EN55022 e Electromagnetic immunity tested in accordance with EN61000 4 8 6 2 3 32 Section 7 Sensor calibration 7 1 Annual calibration Depending on the rules defined by your quality system your sensors may be calibrated on an annual basis This process is carried out at the factory Please contact your distributor to organise this annual calibration 7 2 Three yearly calibration We recommend that you return your devices to the factory every 3 years The sensor battery will be replaced and we will carry out a complete check of your sensors 7 3 Reminders relating to the calibration renewal If during the preparation of a sensor for measurement the HASensor software detects that this sensor has been used for over a year without being calibrated the message in Figure 25 is displayed Calibration Reminder This sensor has been used for 399 days since its last calibration Please contact your distributor if you want to J renewit Remind me next time use this sensor Remind me in 15 days
20. cessaes 4 2 4 CONFIGURING THE HASENSOR SOFTWARE a eaae eaae eaae ena 5 2 4 4 CONFIGURING THE COMMUNICATION PORT ccccccccssscccssececsseecsssccessecesssecesssccsssceessecessaes 6 2 4 2 MANAGING THE SENSORS cccceccccsssecssscccsscccssecesssccssscccssecesssecessssecssececssecessecessseeeaaecessaes 7 2 4 3 BASE MEASUREMENT INTERVAL TIME VALUE 8 SECTION ELI ES ERSPREPRERUPERIIERDRURMERNEEPEERGUERERCEREREIEEROEREBUREENORERT 10 3 1 SWITCHING ON THE SENSORG ccccssccssccssccesccessccssccssccesccesccesscessssecsseccsecseccesacesscessccsscees 10 3 2 RECHARGING A SENSOR S sesta sese ens ena 10 3 3 PREPARING THE SENSORS FOR MEASUREMENT 11 3 3 5 rere edere ce I TA 11 3 3 2 SELECTING THE OPERATION TO BE PERFORMED cceeeeeeeeeneren eene eene entente 11 3 3 3 SETTING THE MEASUREMENT CONFIGURATION 12 3 3 4 SETTING UP THE 16 3 3 5 DISPLAYING THE SENSORS READY FOR MEASUREMENT 17 3 4 FITTING THE SENSORS ONTO THE 5
21. e Vib Work hand arm sensors contain a lithium ion rechargeable battery To reduce the risk of fire or burns do not dismantle crush pierce expose their contacts throw them into fire immerse them in water or expose them to temperatures above 60 CC Please recycle these products in accordance with your country s legal provisions Warning relating to direct exposure to sunlight Keep the devices away from environments with high humidity and or temperatures Do not leave any of the devices in a vehicle or in locations where the temperature may exceed 60 such as behind a windscreen a window or a rear window where they could be exposed to direct sunlight for extended periods This could cause damage to the device overheating of the battery and may present risks of fire or burns The Vib Work devices do not contain any user changeable parts and must never be opened The devices in the Viob Work range do not contain any user changeable parts The device should therefore never be opened and must be returned to the after sales service department should any problems be encountered This is also the case with regards to the replacement of the sensor s internal battery which may only be carried out in the factory The casing hold down bolts must not under any circumstances be unscrewed as this may damage the device Not intended for use in explosive atmospheres The Vib Work hand arm sensors are not intended for use in potentially explosive environments
22. evice e Free USB port on your PC an external USB Hub port may not work effectively 2 3 Installation e Insert the CD ROM supplied into your CD drive e The installation programme begins automatically if this option is authorised on your PC If the installation programme doesn t start after a few seconds display the CD ROM contents and launch the Start programme e Follow the on screen instructions 2 3 1 Installing the USB driver Click on the USB driver installation link 2 3 2 Connecting the docking station USB Hub external devices are limited in terms of performance if they do not have their own power supply i e limited capacity for powering connected external devices In this case they are not compatible with the docking station Please connect your docking station directly to a free USB port on your PC without using any intermediary devices Once the USB driver is installed you can connect the docking station to a free USB port on your PC using the cable supplied e The previously installed driver automatically detects the connection and configures it A COM port number is also assigned to the device You can make a note of this if you don t have time now this will be provided later At the end of this process the message Your equipment is ready for use will be displayed 2 3 3 Switching on the sensors The sensors plugged in to the docking station can be switched on by positioning the
23. guration the screen will list this information Figure 10 below provides an example of this screen Measurement Configuration Create a list oftools and related sensors Sensor Location Orientation Grinder Ultimate Tool Gx20 99200003 200G Back Handle X axis along tool body Rock Drill Ultimate Tool RD28m 99210003 50006 Righ Side Handle Sensor X axis along Handle Figure 10 Measurement configuration 2 You can then click on the Next gt button to proceed to the sensor setup process 3 3 3 1 Adding a tool Click on the button to add and define a tool 13 The add tool window is then displayed Figure 11 Tool Name Tool Model Sensor Location Orientation Figure 11 Adding a tool 1 When you have entered the name and model of the tool as well as the data relating to the sensors that will be fitted to it the screen will display this information Figure 12 below provides an example of this screen 2211 Tool Model Ultimate Tool RD28m Sensor Location Orientation Figure 12 Adding a tool 2 3 3 3 1 1 Adding a sensor Click on the button to add a sensor The add a sensor window is displayed Figure 13 14 Add Edit a sensor on a tool Sensor Location Orientation Figure 13 Adding a sensor to tool e From the scroll do
24. he power supply for this can be provided either by your PC via the USB link or via the charger supplied If both power supply sources are connected the external charger is given priority over the USB link Plug the sensors that need to be recharged into the docking station ports Make sure that the docking station is on the on off switch to the rear of the docking station should be in the On position 10 While charging the indicator light on the sensor will change to constant red This light will change to constant amber once the sensor is fully charged A complete recharge may take approximately 3 hours 8 forget that this may eventually go into sleep mode after certain amount of If you are using your PC s USB port only to recharge the sensors don t time of non use Depending on the selected Windows sleep mode parameters the power supply to the USB port may be suspended and as a consequence the recharging of the sensors too If you would like to use the charger always make sure you use the one supplied with the device The use of another type of charger may damage the docking station and the sensors plugged into it 3 3 Preparing the sensors for measurement 3 3 1 Prerequisites The docking station must be connected to your PC via the USB cable Configuration of the communication port should have been carried out already section 2 4 1 You should have entered the data relating to the sen
25. he sensor management window which displays the list of sensors already registered Select a sensor in the list by clicking on the corresponding row Click on the button to delete the selected sensor Click on the button to close the sensor management window 2 4 2 3 Editing a sensor Click on the button to access the sensor management window which displays the list of sensors already registered Select a sensor in the list by clicking on the corresponding row Click on the button to access the data relating to the selected sensor Enter for example the sensor software key Click on the button to close the sensor management window 2 4 3 Base measurement interval time value The sensors in the Vio Work hand arm range keep a running total of the data acquired at high speed several thousand data acquisitions per second and store it for each To time range The default value of is 1 second This suits the majority of measurement situations The HASensor software allows you to use a different time range from 0 125 0 250 0 500 1 2 or 4 seconds e Click on the button The selection menu is displayed Figure 7 5 Measurement Interval fr 1 000 seconds Figure 7 Selecting the time range e Select the desired value by clicking on the arrows 2 and gt Once you have selected the desired value validate by clicking on the button The selected v
26. ing once the delay time has elapsed 16 The time delay period restarts if the sensor is reinserted into the docking station before it has elapsed regardless of the port in which it is inserted This allows you to prepare several sensors at once for example and to keep all of them on hold in the docking station Click on the Trigger On button The software warns you that this operation will delete the data from a previous measurement Confirm your selection The sensor preparation process takes a few seconds If performed correctly the screen in Figure 15 is displayed Get the sensor ready to measure N Erase the previous measurement and getthe sensor ready for a new one vib work V Sensor Type 200G Battery Level 100 Serial Nbr 99200003 Status Ready Measurement Settings Start Delay 0030 Meas Duration 00 30 00 m Trigger On Plug sensor 99210003 5000 in the COM location of the docking station and click the Trigger button lt Next Quit i Figure 15 Setting up the sensors 2 The instruction line at the bottom of the screen prompts you to either click on Next gt if all of the sensors specified in the measurement configuration have been set up or to insert the next sensor into the docking station s COM port In the latter case remove the previous sensor insert the next sensor into the COM port and reinsert the previou
27. ists the configuration set when the sensors were last prepared for measurement You may modify this configuration if the actual measurement configuration differs from the one anticipated by deleting el button or editing 2 button a sensor or a tool see section 3 3 3 You can then click on the Next gt button to proceed to the sensor reading stage 3 6 4 Reading the sensor measurements When you leave the measurement configuration page and click on the Next gt button the screen for reading the measurements of the first sensor is displayed Figure 20 21 r gt HASensor 23 o M e Read sensor measures S Transfer measures from the sensorto the PC vib work Battery Level Serial Nbr Status Measurement Start Time Stop time Plug sensor 99200003 200G in the COM location of the docking station and click the Read button Figure 20 Reading the sensor measurements 1 An instruction line appears at the bottom of the screen prompting you to insert the sensor with an indication of its serial number into the docking station The sensor must be inserted into the COM port of the docking station a separate port from the others Click on the Read button The sensor reading operation takes a few seconds or a few minutes depending the measurement duration and the selected T base range If performed correctly the screen in Figure 2
28. n by means of a few additional manipulations and manual calculations determine the total exposure value on the basis of the partial exposure values A8 The following describes one way of doing this e Throughout the operator s entire working day or a representative time of his activity fit your sensor onto the first machine used you obtain 8 partial daily exposure for machine 1 e Throughout the next working day assuming that this is comparable to the first day as regards the use of tools fit your sensor onto the second machine used you obtain 8 partial daily exposure for machine 2 e Proceed in the same way for the following days still assuming that these are comparable as regards the use of tools for the other tools used The total daily vibration exposure A 8 of the operator which takes into account all of the machines used by the operator is then calculated on the basis of the partial exposure values according to the formula A 8 JA 8 A 8 A B where A 8 8 8 etc are the partial exposure values associated with the various vibration sources each point and for an equivalent exposure period the value corresponding If the machines have several grip points a measurement is carried out on 8 to the highest partial exposure is taken into account in the above formula 27 Section 5 Characteristics of the Vib Work hand arm sensors 5 1 Normative refere
29. nces e This product was developed with the INRS the French National Research and Safety Institute Vandoeuvre France within the framework of agreement 5084017 The INRS has verified that this device is suited to the measurement of vibrations transmitted to the hand arm system e This product has passed the conformance tests stipulated in section 12 of the EN ISO 8041 2005 standard e Following production each device is subject to the verification tests stipulated in section 13 of the ISO 8041 2005 standard 5 2 Frequency weighting The Vib Work hand arm sensors implement W weighting network according to the X Y and Z axis This weighting network is stipulated by the standard ISO 5349 1 governing the measurement and evaluation of human exposure to hand transmitted vibration 5 3 Light indications the sensor s LED Constant red light The sensor is charging inserted into the docking station Constant amber light The sensor is fully charged inserted into the docking station Blinking red light The sensor has been set up or has finished performing the measurement Blinking amber light The sensor is performing the measurement Red light with blinking amber light The sensor is performing the measurement but has detected momentary acceleration values that are too high exceeded input range Blinking red amber light The sensor is switched on but it is not being used or is not connected to a charging source USB or charger
30. ng the COM port configuration window Click on the button to access the COM port configuration window COM Port Configuration COM part v Search Figure 4 Configuring the communication port 2 4 1 3 Selecting the COM port From the scroll down menu select your docking station s COM port If you didn t note it down when first connecting the docking station or if several COM ports are displayed you can launch a search by clicking on the Search button see section below 2 4 1 4 COM port search Click on the Search button Messages are displayed prompting you to first disconnect your docking station and then reconnect it If the search is performed correctly the software will then list a COM port Select it from the scroll down menu You may then proceed with a test by clicking on the Test button see section below 2 4 1 5 COM port test When you have selected the COM port insert a sensor into the docking station s COM port Click on the Test button After a few seconds a message will be displayed indicating whether the communication is operating normally or if there is a problem with the connection 2 4 2 Managing sensors 2 4 2 1 Adding a sensor Prior to using your sensor the data relating to it should be entered Click on the button The sensor management window opens up Figure 5 Here you will find a list of sensors that have been previously registe
31. o be firmly attached to the tool as well as its orientation in relation to the tool should be indicated e each of the sensors an activation period should be entered period after which the sensor will begin measuring once it has been removed from the docking station as well as the measurement duration Stage 4 Fitting the sensors onto the tools The sensors are fitted onto the machine handles and require rigid lightweight and compact assembly systems standard EN ISO 5349 2 2001 The accessories supplied with the sensors allow the majority of different situations to be addressed Stage 5 Data reading and displaying the results Stage 6 Switching off the sensors If you don t have enough sensors to automatically measure an operator s complete exposure you may perform successive measurements for each of the tools and vibration input points in the hand arm system The individual results must then be recombined The calculations associated with this recombination can be performed using a vibration calculator http www vib at work com These are also explained in Section 4 Using a single sensor combining partial exposure values 3 1 Switching on the sensors The sensors plugged into the docking station can be switched on by positioning the on off switch located to the rear of the device into the On position 3 2 Recharging a sensor s battery The sensor s battery is recharged via the docking station T
32. readsheet text To carry out a copy paste of the graphs and results to an other software system word processing for example with a view to creating customised measurement reports Section 2 Installation and Configuration installed the USB software driver This facilitates the installation procedure Do not connect the docking station to your PC s USB port until you have considerably 2 1 Content of the kit The kit contains One or more sensors depending on your order A docking station A charger A USB cable for connecting the docking station to your PC One or a number of mechanical interfaces for fitting the sensors to the tools the associated screws and washers as well as a suitable hex wrench A few metal collars provided as examples e A CD ROM containing the software and user manual e A quick installation guide Docking Station and Sensor s Attachement base s Charger and hex wrench USB Cable Attachement Collars Figure 1 Content of the kit Additional sensors can be supplied separately 2 2 Prerequisites Minimum configuration required for the PC e Windows XP Service Pack 2 Windows Vista or Windows 7 e Microsoft NET Framework 2 0 e Hard disk drive with 20Mb of available space CD ROM reader e VGA graphics or compatible video graphics driver at up to 256K colours or higher e Keyboard e Microsoft mouse or compatible pointing d
33. red If you are configuring your first sensor this list will be empty Key 7 8363 19 7 074 A36A45CC95537ECA 1FA8D83D1C171A3E Figure 5 Managing the sensors Click on the button to add a sensor A new window is displayed Figure 6 allowing you to insert the data relating to the sensor Serial Nbr Software Key Figure 6 Adding a sensor e In the Serial Number field enter your sensor s serial number 8 figures inscribed on the sensor casing e In software key field optional enter the key to allow the software to generate full results vibration time history These results can then be read displayed in graphic format and analysed by the HAViewer software If a key isn t entered only the results relating to the vibration doses can be saved 8 The software keys allowing you to generate comprehensive results files can be obtained upon acquisition of a HAViewer licence Please contact your distributor to find out the terms and conditions of acquisition and use D The type of sensor 200G 50000 is automatically determined by the software on the basis of the sensor s serial number and therefore should not be entered e When the fields are completed validate them by clicking on the button The sensor management window will then display the sensor that you have just entered 2 4 2 2 Deleting a sensor Click on the button to access t
34. s sensor into a free port of the docking station After a blanking period during which the internal memory is erased the sensor s LED blinks red when the sensor has been set up 3 3 5 Displaying the sensors ready for measurement Once all of the sensors have been set up and you have clicked on the Next gt button the screen listing the sensors is displayed Figure 16 17 Ee List of Sensors Ready for Measurement Sensor Location Orientation Start Delay Measurement Du Grinder Ultimate Tool Gx20 99200003 200G Back Handle X axis along tool body 00 00 30 00 30 00 Rock Drill Ultimate Tool RD28m 99210003 500008 Righ Side Handle Sensor X axis along 00 00 30 00 30 00 Figure 16 List of sensors ready for measurement e Click on the button to generate a report of the sensors ready for measurement 8 If you position the on off switch located to the rear of the docking station to the off position when the sensors inserted into it are prepared for a measurement these sensors will be switched off and will no longer be in ready for measurement status It is possible to move the sensors and maintain their ready for measurement status as long as they are inserted into the docking station and the on off switch located to the rear of the latter is in the On position this is the case even if the docking station is not being powered i e neither
35. sors section 2 4 2 You should have selected the appropriate range value section 2 4 3 The default value is 1 second The on off switch to the rear of the docking station must be in the On position 3 3 2 Selecting the operation to be performed Launch the HASensor software and go to the welcome screen by clicking on the Next gt button The screen for selecting the operation to be performed is displayed Figure 8 11 2 Operation Selection Selectthe operation you wantto perform vib work M Operation 9 Get one or more sensors ready to measure Download measures from one sensor or more Sensors Management Configuration Figure 8 Preparing the sensors for measurement e Check Get one or more sensors ready to measure and click on the Next gt button 3 3 3 Setting the measurement configuration The measurement configuration entry screen allows you to e Enter the tools that the operator is going to use during his her working period e Select the appropriate sensor s from those available that you intend to fit onto each of the tools e Define the position and orientation of each of the sensors on the tools 12 Measurement Configuration Create a list oftools and related sensors Sensor Location Orientation 1 m Figure 9 Measurement configuration 1 When you have entered the data relating to your measurement confi
36. sure of workers to the risks arising from physical agents vibrations aims to lay down at community level the minimum requirements for protecting workers when they are exposed to risks from mechanical vibration during their work The 2002 44 EC Directive sets out the exposure limit values and exposure action values It also explains the obligation of employers as regards the determination and assessment of risks describing the measures to be taken to reduce or prevent exposure and detailing the methods for informing and training workers Any employer intending to conduct works that pose a risk in terms of vibration exposure must therefore implement a full range of protective measures before and during the actual works Similarly the Directive requires Member States to put in place appropriate procedures to ensure that workers exposed to vibration risks undergo health surveillance Frequency weighting A correction applied to vibration measurements often using a filter to reflect the frequency dependence of the risk of damage to the body The Wn weighting curve defined in EN ISO 5349 1 2001 is used for hand arm vibration exposure This correction is carried out automatically by the Vibo Work hand arm dosimeters Daily vibration exposure A 8 The total equivalent acceleration value for a worker calculated over an 8 hour daily period This is expressed in m s It includes all hand transmitted vibration exposures during the day Partial
37. the sensor If you perform the measurement for just a proportion of the usage duration of the tool by the operator you have the option to modify the UT value to reflect the estimation that you have made of the time during which the operator is exposed to the vibration of the tool 2 button The button allows you to reset the UT value UT ET Example An operator uses a power chisel during his her working day between the hours of 8 am to midday and 1 pm to 4 pm You can only perform a measurement for the morning but would like to estimate the operator s exposure for this tool that corresponds to his her entire working day This extrapolation is possible as long as the operator is working under similar conditions in the afternoon the same tool and worked parts the same working conditions the same frequencies etc Let us therefore assume that you are only performing the measurement between 8 am and midday For this measurement time MT let s assume that the HASensor software gives you an exposure time ET of 1 hour and 30 minutes the operator has set his her tool down in order to move the part that he she is working on or to take a break etc The usage time UT to be entered in order to obtain an estimation of the exposure for the entire day can be obtained by using the following rule of three 4530 CHI nomina FAR 4h morning UT 2h37m30s It is important to keep in mind that these are extrapolations and hypo
38. theses 8 based on similarity of working conditions outside of the actual measurement period The risk of errors increases the longer the usage time UT is in relation to the measured exposure time ET and if the usage conditions of the tool are no longer comparable A 8 This is the partial daily vibration exposure It is described as partial as it only takes into account the impact of one of the tools used by the operator the 001 It is calculated using the formula 8 ivi 1 A 8 If several sensors have been attached to the same tool the highest value of any is taken into account in the calculation of the partial daily vibration exposure 8 relating to this tool exposure limit value 5 0 m s as defined in European Directive 2002 44 EC vibration directive and are presented in accordance with the following colour code Daily exposure is compared to the exposure action value 2 5 m s and to the 25 e Green indicates an exposure level below the action value Orange indicates an exposure level above the action value but below the e Red indicates an exposure level above the limit value limit value A 8 The total daily vibration exposure A 8 of the operator which takes into account all of the machines used by the operator is then calculated on the basis of the partial exposure values according to the formula A 8 J A 8 A8 AG where A4 8
39. to import a measurement configuration that has been previously saved in a file 3 3 4 Setting up the sensors Once the measurement configuration has been entered and you have clicked on the Next gt button a screen for preparing the first sensor for measurement is displayed Figure 14 Get sensor ready to measure N Erase the previous measurement and get the sensor ready for a new one vib work V Sensor Type Battery Level Serial Nbr Status Measurement Settings Start Delay 150030 Meas Duration 00 30 00 Trigger On Plug sensor 99200003 200G in the COM location of the docking station and click the Trigger button Quit Figure 14 Setting up the sensors 1 An instruction line appears at the bottom of the screen prompting you to insert the sensor with an indication of its serial number into the docking station The sensor must be inserted into the COM port of the docking station a separate port from the others Enter a delay time This is the period after which the sensor will begin to take the measurement once it has been removed from the docking station The minimum delay time is 10 seconds This minimum duration is intended to provide you with the time required to fit the sensor onto the tool before commencing the measurement Enter the measurement duration This is the period during which the sensor will begin measur
40. wn menu select a sensor from those still available e Enter the sensor s location on the tool for example side handle rear handle etc e Enter its orientation in relation to tool the sensor measurement axis X Y and Z are indicated on the sensors Their orientation in relation to the tool should be indicated for example X axis parallel with the handle percussive Z axis etc e Click the button to close the add a sensor to a tool window 3 3 3 1 2 Deleting a sensor Click on the button to delete the selected sensor from the list 3 3 3 1 3 Editing a sensor e Click on the Fd button to edit the data relating to the selected sensor 3 3 3 2 Deleting a sensor or a tool Click on the button to delete the selected sensor s In Windows 7 if you click on the name of the tool you can select all the sensors associated with it NS Hold down the CTRL key to select more than one sensor 3 3 3 3 Editing a tool Click on the button to edit a tool or its sensors 3 3 3 4 Exporting a measurement configuration e Click on the button to save a measurement configuration file 15 You can save your regular configurations As a consequence you won t need to reload them at a later date This saves you from having to re enter all of the data relating to the tools and sensors used each time 3 3 3 5 Importing a measurement configuration e Click on the button
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