Whole Body - Dosimètres de vibration Vib@Work
Contents
1. Parameter Conditions Error Sine Wave 4 weighted Amplitude 1 m s accelerations Frequency 15 915Hz along X YandZ te 236 Sensitivity to T from Ambient temperature 5 96 temperature 10 to weighted 50 accelerations Surface temperature 4 Frequency T223C f lt 0 2512Hz 100 26 96 weighting and 0 2512Hz lt f lt 0 631Hz 21 26 response 0 631 lt f lt 63 1Hz 41 42 63 1 Hz f lt 158 5 Hz 21 26 96 158 5Hz sf 100 26 96 Linearity error T from 10 to 50 C 6 Amplitude Linear operation T from 10 to 50 C 60 dB range Response to 236 10 normalised pulses Tolerance on rms values Resolution of T from 10 to 50 C 1 S exposure time measurements Time T from 10 to 50C 0 1 96 measurement accuracy Electrical T223C 0 5 96 crosstalk Mechanical T223C 5 96 crosstalk Accelerometer T 23C 800 Hz resonant frequency Shocks T from 10C to 50 C 1000 m s resistance 74 4 5 Storage Capacity and Autonomy e Sensor storage capacity 36 hours of measurement TO 4sec 18 hours of measurement TO 2sec 9 hours of measurement TO 1sec e Autonomy when measuring Bluetooth disabled gt 20 hours e Autonomy Bluetooth enabled gt 10 hours e Minimum number of allowed battery charge cycles 500 4 6 Physical Sensor Characteristics Dimensions diameter 205mm height 12mm complies with ISO10326 1 Weight2. 28 3 1 4 OPERATING a aa uq a q E m Q u 29 3 1 5 ACCESSING MEASUREMENT RESULTS 30 3 1 6 SWITCHING OFF THE SENSOR suce 8 37 3 2 STANDING OPERATOR EXPOSURE MEASUREMENT 38 3 2 1 POWERING ON THE 5 5 5 38 3 2 2 PREPARING THE SENSORS FOR TAKING MEASUREMENTS 38 3 2 3 INSTALLATION OF THE SENSORS 42 3 2 4 OPERATING ue sag as la uq u Q uqu 44 3 2 5 ACCESSING MEASUREMENTS RESULTS 45 3 2 6 SWITCHING OFF THE 52 3 3 MEASUREMENT OF S E A T FACTORS 53 3 39 INTRODUCTION u tte nai eee oe eerte tis 53 3 3 2 POWERING ON THE SENSORS 53 3 3 3 PREPARING THE SENSORS TAKE MEASUREMENTS 53 3 3 4 INSTALLATION OF THE 0 9 57 3 3 5 OPERATING itte teen t ie Ne ae ae te ts 59 3 3 6 ACCESSING MEASUREMENTS RESULTS 60 3 3 7 SWITCHING OFF THE 5 5 5 77077059 68 3 4 TO TIME INTERVAL SETTING 69 3 5 CHARGING THE SENSOR BATTERY 71 SECTION 4 EVECSENSOR DEVICE CHARACTERISTICS 72 4 1 COMPLIANCE WITH STANDARDS 72 4 2 FREQUENCY WEIGHTINGS
3. 72 4 3 EXTRAPOLATION PARTIAL 72 4 4 SENSOR DYNAMICS 74 4 5 STORAGE CAPACITY AND AUTONOMY Y 75 4 6 PHYSICAL SENSOR CHARACTERISTICS 75 4 7 ENVIRONMENT 75 4 8 MEASUREMENT RESULTS 75 4 9 CHARGER ER TS 75 4 10 WIRELESS LINK 75 4 11 ELECTROMAGNETIC COMPATIBILITY 76 SECTION 5 EVECFLOOR DEVICE CHARACTERISTICS 77 5 1 COMPLIANCE WITH STANDARDS 77 5 2 FREQUENCY WEIGHTINGS 77 5 3 SENSOR DYNAMICS 78 5 4 STORAGE CAPACITY AND AUTONOM Y 79 5 5 PHYSICAL SENSOR CHARACTERISTICS 79 5 6 ENVIRONMENT 79 5 7 MEASUREMENT RESULTS 79 Lr MEe cd end os 79 5 9 WIRELESS LINK iere ores erar rt nior Cua eoe ee resa
4. Figure 29 Downloading Measure Results Measures read successfully Click the Next button to select the period of measurement 33 Step 7 The Evec dosimeter is usually used to take measurements throughout the driver s work day shift option 1 in Figure 30 Nevertheless it is possible to assess the vibration exposure by taking a measurement during only a part of the driver s work day shift provided that the drivers work during this period represents the driver s usual exposure to vibration The time period when the driver uses the vehicle during his her work day shift must then be estimated and entered manually option 2 in Figure 30 Evec Sensor Duo coi Type of measurement Select the option that matches the type of measurement done Type of measurement Measurement done during a whole work period Measurement done during a part of the work period hh mm Estimated driver s utilisation time of the vehicle per work day 4 15 lt Back JI Next gt Cancel J Figure 30 Accessing measurement results type of measurement selection pop up In the case of a large extrapolation measurement was taken during a short period of time compared to the drivers usual operation time of the vehicle during his her work day shift a warning window will i e if the Click the Next button to display exposure values 34 Step 8 Measurement
5. 77 5 3 Sensor Dynamics Parameter Conditions Error Sine Wave 4 weighted Amplitude 1 m s accelerations Frequency 15 915Hz along X YandZ te 236 Sensitivity to T from Ambient temperature 5 96 temperature 10 to weighted 50 accelerations Surface temperature 4 Frequency T223C f lt 0 2512Hz 100 26 96 weighting and 0 2512Hz lt f lt 0 631Hz 21 26 response 0 631 lt f lt 63 1Hz 41 42 63 1 Hz f lt 158 5 Hz 21 26 96 158 5Hz sf 100 26 96 Linearity error T from 10 to 50 C 6 Amplitude Linear operation T from 10 to 50 C 60 dB range Response to 236 10 normalised pulses Tolerance on rms values Resolution of T from 10 to 50 C 1 S exposure time measurements Time T from 10 to 50C 0 1 96 measurement accuracy Electrical T223C 0 5 96 crosstalk Mechanical T223C 5 96 crosstalk Accelerometer T 23C 800 Hz resonant frequency Shocks T from 10C to 50 C 1000 m s resistance 78 5 4 Storage Capacity and Autonomy e Sensor storage capacity 36 hours of measurement TO 4sec 18 hours of measurement TO 2sec 9 hours of measurement TO 1sec e Autonomy when measuring Bluetooth disabled gt 20 hours e Autonomy Bluetooth enabled gt 10 hours e Minimum number of allowed battery charge cycles 500 5 5 Physical Sensor Characteristics Dimensions Length 65 mm Width
6. Use the passkey found in the documentation 00000011 Let me choose my own passkey Don t use a passkey You should always use a passkey unless your device does not support one We recommend using a passkey that is 8 to 15 digits long The longer the passkey the more secure it will be lt Back Next gt Cancel Figure 7 Bluetooth Adding a Bluetooth Device Step 4 Click the Next button 16 Step 5 The final screen Figure 8 will appear with a list of the communication ports that have been assigned by the Bluetooth utility for your PC to communicate with your Evec sensor Note down the outgoing COM port that has been assigned IMPORTANT Note down the outgoing COM port that has been assigned You will have to enter it when using the EvecSensorDuo software for the first time next section Add Bluetooth Device Wizard Completing the Add Bluetooth Device Wizard The Bluetooth device was successfully connected to your computer Your computer and the device can communicate whenever they are near each other These are the COM serial ports assigned to your device Outgoing COM port COME Incoming COM port COMB Learn more about Blu To close this wizard click Finish Figure 8 Bluetooth Adding a Bluetooth Device Step 5 Click on the Finish button You have successfully configured the Bluetooth link between your PC and your sensor 17 2 4 Install
7. button to get the sensor ready For a new measure Sensors Identification 08070002 Identification 099080003 Serial Nbr 08070002 Serial Nbr 99080003 Battery Level 7090 Battery Level 90 95 Communication Communication Trigger On Figure 38 Preparing the Sensors to take measurements Trigger On 41 A pop up window will appear telling you that the Trigger On process will erase any previous measurements that may still be stored in the sensor memory Confirm your choice The Trigger On process may take a few seconds If this process is successful the screen shown in Figure 39 is displayed x Sensor Duo Get the sensor ready to measure Click on the Trigger On button to get the sensor ready For a new measure Sensors Identification 08070002 Identification 099080003 Serial Nbr 08070002 Serial Nbr 99080003 Battery Level 70 95 Battery Level 90 Communication The sensor is Communication The sensor is ready to measure ready to measure CEE ee lt Back J Finish J Cancel Figure 39 Preparing the sensors to take measurements Sensors ready to measure The sensors are then ready to take measurements You can exit the EvecSensorDuo software Finish Button and install the sensors in order to begin standing operator measurement The LED of the EvecDetect sensor will be blinking red as
8. experienced by seated operators in accordance with European Directive 2002 44 EC The EVEC sensor is a semi rigid interface to be placed on the driver s seat It incorporates a 3 axis accelerometer and processing electronics A driver presence sensor is also integrated into the EVEC sensor This accurately measures vibration exposure time and automatically computes normalised values such as A 8 the daily vibration exposure without requiring any user handling or computing The Evec Floor sensor option is a dosimeter for measuring floor vibrations Used in combination with the Evec Sensor it allows the calculation of seat efficiency factors also called S E A T factors The Evec Detect sensor option is an external and autonomous presence detector for use in combination with Evec Floor or Evec that allows the calculation of the vibration level experienced by standing operators in accordance with European Directive 2002 44 EC These three sensors communicate with the EvecSensorDuo software installed on your PC through a wireless connection No wires are needed EvecSensorDuo software allows users to select the required measurement configuration seated operator exposure standing operator exposure seat efficiency measurement S E A T factors to switch ON the sensor s according to the selected measurement to access through a wireless connection measurements made by the sensor s to automatically and easily ca
9. sensors will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 55 will be displayed Evec Sensor Duo Jog Sensor Selection Select the sensor you want to work with in the drop down list Eee 00 EvecHloor 0 07060089 1208070002 r Information Serial Nbr 07060089 Serial Nbr 08070002 Communication Connected Communication Connected lt Back Next gt Cancel Figure 55 Sensors Selection Screen Connected Click the Next button 55 Step 5 Select the Get the Sensors Ready to Measure option Figure 56 3 Evec Sensor Duo mI Actions Select one of the options below to either get the sensor ready For a new measurement or access measures in its memory Options 3 Get the Sensors Ready to Measure Access Sensors Measures lt Back Next gt Cancel Figure 56 Preparing the Sensors to Take Measurements Click the Next button to prepare the sensors for a new measurement Step 6 Click the Trigger On button Figure 57 B Evec Sensor Duo Se Get the sensor ready to measure Click on the Trigger On button to get the sensor ready for a new measure Sensors Identification 07050089 Identification 08070002 Serial Nbr 07060089 Serial Nbr 08070002 Battery Level 7090 Battery Level 7090 Communication Communica
10. 350 grams 4 7 Environment Sensor temperature operating range from 10C to 50 from 06 to 40 when charging 4 8 Measurement results e Maximum error on RMS weighted accelerations over 8 hour period 0 05 m s 4 9 Charger Input 100 240 VAC 50 60Hz 150mA Output 5 VDC 1000 mA 4 10 Wireless Link Bluetooth Class 2 Communication up to 30m open field Nominal Emission Power 4dBm Nominal Sensitivity 84dBm ISM Band 2 4GHz 75 4 11 Electromagnetic Compatibility e Radiated emissions tested according to EN 55022 e Immunity tested according to EN 61000 4 8 6 2 3 76 Section 5 EvecFloor Device Characteristics 5 1 Compliance with standards e The EvecFloor has been developed in partnership with the INRS Institut National de Recherche et de S curit en France Research Centre for Safety France under agreement 5061249 The INRS has verified that this device can be used for whole body vibration exposure measurements e Acceptance testing has been carried out according to EN ISO 8041 2005 section 12 e Each manufactured device is tested according to ISO 8041 2005 section 13 5 2 Frequency Weightings The following frequency weightings are implemented into the EvecFloor device e Wa frequency weightings along the X and Y axes e W frequency weightings along the Z axis These frequency weightings comply with ISO 2631 the standard referred to for whole body vibration exposure measurements
11. 62 mm Height 20 mm with fixing magnets Weight 120 grams with fixing magnets 5 6 Environment Sensor temperature operating range from 10C to 50 from 06 to 40 when charging 5 7 Measurement results Display resolution for RMS weighted accelerations 0 01 m s e Maximum error on RMS weighted accelerations over an 8 hour period 0 05 m s 5 8 Charger Input 100 240 VAC 50 60Hz 150mA Output 5 VDC 1000 mA 5 9 Wireless Link Bluetooth Class 2 Communication up to 30m open field Nominal Emission Power 4dBm Nominal Sensitivity 84dBm ISM Band 2 4GHz 79 5 10Electromagnetic Compatibility e Radiated emissions tested according to EN 55022 e Immunity tested according to EN 61000 4 8 6 2 3 80 Section 6 EvecDetect Device Characteristics 6 1 Compliance with standards e The EvecDetect has been developed in partnership with the INRS Institut National de Recherche et de S curit en France Research Centre for Safety France under agreement 5061249 The INRS has verified that this device can be used for whole body vibration exposure measurements 6 2 Dynamic device characteristics Detection Range from 5 to 80 cm of the case of the sensor 6 3 Storage Capacity and Autonomy e Sensor storage capacity 36 hours of measurement TO 4sec 18 hours of measurement 0 25 9 hours of measurement TO 1sec e Autonomy when measuring Bluetooth disabled gt 20 hours e Autonomy Blue
12. Nbr 08070002 Exposure Time ET 00 00 04 Trigger On 13 08 2008 12 50 16 Utilisation Time UT 00 50 00 Axis Accelerations over ET Daily Vibration Exposure x 1 4 x awx ET 1 47 m s 1 4 x awx 8 0 48 m s Y 1 4 x awy ET 1 31 m s 1 4 x awy 8 0 42 m s z 1 0 x awz ET 5 36 m s 1 0 x awz 8 1 73 m s aeq ET 5 36 m s A 8 1 73 m s The daily vibration exposure A 8 is higher than the exposure limit value 1 15 m s lt Back Next gt Cancel Figure 50 Display of measurement results exposure values Measurement Time MT This is the duration between the time the operator is first detected to the last time he she is detected Exposure Time ET This is the time period when the operator is exposed to vibration during the measurement process This is the measurement time MT minus time periods when the operator was not detected Utilisation Time UT This is the time when the operator is working during his her work day shift i e the time where he she is actually present If the measurement is taken throughout the time the operator is detected during his her work day shift the utilisation matches the exposure time ET which is then automatically measured by the EvecDetect sensor ay ET a ET a These are the RMS weighted accelerations along the X Y and Z axes respectively that have been measured during the Exposure Time period ET 50 a ET This is t
13. XP Bluetooth stack is described below Other well known Bluetooth amp stack providers are Toshiba and Broadcom Widcomm The procedure is similar please refer to the relevant documentation for detailed help Additional information can be found at http www body vibration eu Access the Bluetooth utility software i e by right clicking on the Bluetooth icon O on the status bar of your computer Add a Bluetooth Device Show Bluetooth Devices Send a File Receive a File Join a Personal Area Network Open Bluetooth Settings Remove Bluetooth Icon Figure 4 Bluetooth Adding a Bluetooth Device Step 1 Select the Add a Bluetooth Device option Step 2 Remove the sensor from the casing and place it within range of your computer Once this is done tick the My device is set up and ready to be found box see Figure 5 Add Bluetooth Device Wizard Welcome to the Add Bluetooth Device Wizard Before proceeding refer to the Bluetooth section of the device documentation Then set up your device so that your computer can find it Tum it on Make it discoverable visible Give it a name optional Press the button on the bottom of the device keyboards and mice only pM device is set up and ready to be found q Add only Bluetooth devices that you trust Figure 5 Bluetooth Adding a Bluetooth Device Step 2 Click the Next button 14 Step 3 The Blueto
14. be established between the PC and the EvecDetect sensor while it is able to detect something the operator or any foreign body The Bluetooth communication is switched off to reduce sensor power consumption and increase autonomy As soon as EvecDetect sensor is unable to detect anything the Bluetooth communication on the sensor is enabled again There may be a few seconds delay before Bluetooth amp starts running again and the EvecSensorDuo software can begin communicating with the sensor Step 2 If the software has not been launched yet launch it and the Welcome screen will appear Figure 42 Evec Sensor Duo Joe Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You first get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results for a later use To continue click Next Figure 42 Welcome Screen Click the Next button 45 Step 3 The measurement configuration selection screen appears Figure 43 eii Sensor Duo cow Configuration Selection Select the configuration of sensors Exposure of a seated operator on the seat Exposure of a stand up operator 9 EvecFloor and EvecDetect Evec on the floor a
15. m s 113 00 21 36 A SEAT factors in X and Y are indicative only lt Back Next gt Cancel Figure 69 S E A T Factors S E A T Factors along the X Y and Z axes The S E A T Factors are ratios expressed as a percentage between the RMS weighted accelerations on the seat and the RMS weighted accelerations on the floor for each axis The RMS weighted accelerations used for calculation are those which correspond to the criterion Indeed to obtain a correct S E A T Factor as it s a ratio the acceleration values should not to be too low The EvecSensorDuo software calculates the S E A T Factors using the values on the seat and on the floor beyond the stipulated level for at least the stipulated time The total period of computation is shown in Figure 69 in the Computation Period column The values for the duration and threshold can be modified and the S E A T factors can be recalculated by clicking on the button 67 Only the S E A T factor on the Z axis vertical axis is normalised The S E A T Factors on the X and the Y axes are computed for information purposes only The interpretation may be difficult depending on the type of seat the type of vehicle etc Click the Next button if you wish to save the measurement results Step 10 The Save Results screen Figure 70 allows you to enter information about the driver and the measurement context and to save this infor
16. relationship between your computer and the Evec sensor so that they can recognise each other and exchange data 3 Create a communication port on your PC to communicate with the sensor The Bluetooth configuration is carried out once for any given PC sensor pair Once done both and sensor even if they have been switched off will store this configuration in their memory The configuration procedure should only need to be repeated when a new sensor has been purchased or when installing the EvecSensorDuo software on another PC 2 3 1 Is Bluetooth installed on your PC Most laptops are now equipped with Bluetooth hardware and the software is installed at the factory To verify whether this is the case for your computer look for the Bluetooth icon Q on your desktop in the lower right corner I lt OL 09 25 Figure 2 Bluetooth present and enabled gt 0 OLS ess Figure 3 Bluetooth present but disabled Several cases are possible 1 The icon appears with a white pictogram Figure 2 Bluetooth is installed and enabled 2 The icon appears with a red pictogram Figure 3 Bluetooth is installed but disabled In this case right click on the icon In most cases a menu appears with an option to enable Bluetooth 3 There is no Bluetooth icon on your desktop Bluetooth is probably not available on your computer Please refer to your computer documentation do not forget to click on the Taskba
17. results are displayed Figure 31 re Evec Sensor Duo BAX Exposure Results Display of vibration exposure values Sensor Identification 07050089 Measurement Time MT 00 00 24 Serial Nbr 07060089 Exposure Time ET 00 00 08 Trigger On 11 08 2008 14 17 32 Utilisation Time UT 04 15 00 Axis Accelerations over ET Daily Vibration Exposure x 1 4 x awx ET 0 29 m s 1 4 x awx 8 0 21 m s E 1 4 x awy ET 0 16 m s 1 4 x awy 8 2 0 11 m s z 1 0 x awz ET 0 63 m s 1 0 x awz 8 0 46 m s aeq ET 0 63 m s A 8 0 46 m s The daily vibration exposure A 8 is lower than the values defined in the vibration directive lt Back Next gt Cancel Figure 31 Display of measurement results exposure values Measurement Time MT This is the duration between the time the driver first sits down to the time he she leaves his her seat for the last time Exposure Time ET This is the time period when the driver is exposed to vibration during the measurement process This is the measurement time MT minus time periods when the driver has left his her seat and minus unwanted effect time periods e g shocks generated by the driver when sitting or leaving his her seat are disregarded Utilisation Time UT This is the time when the driver is using the vehicle during his her work day shift i e the time where he she is actually present at his her driving position If the measurement is taken throu
18. screen Click the Next button the choice doesn t matter at this stage Step 2 The sensor selection screen Figure 11 will appear fe Evec Sensor Duo Woe Sensor Selection Select the sensor you want to work with in the drop down list Information Serial Nbr Serial Nbr Communication Communication Figure 11 Sensor selection screen Click the button A 19 Step 3 The sensor manager window Figure 12 will open This window lists the sensors that have previously been registered If you are configuring the EvecSensorDuo software to use your first sensor this list will be empty e Sensor Manager m Figure 12 Sensor Manager Window Click the button to register a new sensor A new window will open Figure 13 this allows you to enter the name and the outgoing communication port number that was assigned during the Bluetooth link communication configuration section 2 3 Add Sensor Joe Identification of the Sensor E07060030K Serial 07060030 Pot 4 Key 9423COCAD75B2FE1 Figure 13 Add Sensor Window In the name field you can enter the id you wish to assign to your sensor maximum 15 characters letter or numeric In the Serial field enter the serial number You can find this number on the sensor 8 figures 20 In the port field enter the outgoing communication port number
19. soon as the EvecDetect sensor is ready to take measurements The LED of the EvecFloor sensor or the Evec sensor will be blinking green as soon as the EvecFloor sensor is ready to take measurements 3 2 3 Installation of the sensors 3 2 3 1 Sensor on the floor Standards define 3 axes the X axis towards the front the Y axis towards the left and the Z axis towards the top Accelerations will be measured along these 3 axes in order to retrieve the operators whole body exposure 42 The measurements should be made on the surface where the operator usually stands close to his her feet The sensor EvecFloor or Evec used on the floor must be firmly secured on the work platform The vibrations must be measured on the bearing surface near the surface of contact between the feet and this surface generally within a radius of 100 mm around the centre of this surface j y z I f Fe gt Nii Figure 40 Definition of X Y and Z axes orientation of the operator and the sensor on the floor If you are using the Evec Sensor on a platform the sensor can be secured using a sandbag EvecFloor sensor can be mounted by means of the integrated magnets on a rigid steel plate 300mm x 400mm x 5mm within the operator s positioning range If the platform is covered with resilient materials the 43 3 2 3 2 EvecDetect There is no strict rule f
20. that was created during the Bluetooth communication link configuration In the key field optional enter the license key to allow the software to generate full results i e vibration time history to be accessed at a later stage and displayed and analysed using the EvecViewerDuo software If no key is entered you will only be able to save the vibration level information Usually the Bluetooth utility creates a COM port followed by a number e g COM4 COM22 Only the number 4 22 in this example must be entered in the Port field Once all fields have been completed click the Add button The new added sensor is now listed in the Sensor Manager Window Figure 14 o Sensor Manager Joe s E07060030K BA23COCAD75B2FE 1 4 Close Figure 14 Sensor Manager Window New sensor is added Click the Close button to go back to the sensor selection screen Your new sensor is now ready to use 21 Section 3 Operation This section describes how to operate one or more sensors for measuring whole body vibration exposure experienced by operators and or the calculation of the S E A T Factors The EvecSensorDuo installed on your computer allows you to e Prepare the sensors for measurements e Access measurement results from the sensor s as well as compute and display vibration exposure values and or the S E A T Factors The 3 possible measurements are e Measu
21. 79 5 10 ELECTROMAGNETIC COMPATIBILITY 80 SECTION 6 EVECDETECT DEVICE CHARACTERISTICS 81 6 1 COMPLIANCE WITH STANDARDS 81 6 2 DYNAMIC DEVICE CHARACTERISTICS 81 6 3 STORAGE CAPACITY AND AUTONOMY Y 81 6 4 PHYSICAL SENSOR CHARACTERISTICS 81 6 5 ENVIRONMENT 2 2 L L a T uW o ege 81 6 6 CHARGER u 81 6 7 WIRELESS LINK iiie I a senc eL rao racha ea cotes sina apa 82 6 8 ELECTROMAGNETIC COMPATIBILITY 82 SECTION 7 eese can 83 EC Conformity This device complies with the following European Directives Low voltage directive 73 23 EMC directive 89 336 EEC 6 conformity is not guaranteed if used with battery charger other than the one supplied with the EVEC device Warnings Warning concerning the battery The Evec Evec Floor and Evec Detect sensors contain a rechargeable lithium ion battery To reduce the risk of fire or burn injuries do not disassemble crush puncture short circuit the external contacts or dispose of them in fire or water Do not expose the EVEC sensor to temperatures exceeding 60 C 1404 Please dispose of this product
22. Bole Configuration Selection Select the configuration of sensors Exposure of a seated operator Evec on the seat Exposure of a stand up operator EvecFloor and EvecDetect Evec on the floor and EvecDetect S E A T factor s Evec on the seat and EvecFloor Cie on the seat and Evec on the floor lt Back Jf Next gt Cancel Figure 61 Measurement selection screen The last chosen configuration is automatically selected Click the Next button Step 4 Select the sensors you have been working with from the drop down list Figure 62 3 Evec Sensor Duo JE Sensor Selection Select the sensor you want to work with in the drop down list Evec EvecFloor 07060089 v Information Serial Nbr 07060089 Serial Nbr Communication Connected Communication Figure 62 Sensor Selection Screen drop down list 61 The connection process between the EvecSensorDuo software and the sensors Will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 63 will be displayed B Evec Sensor Duo 7909 Sensor Selection Select the sensor you want to work with in the drop down list Evec EvecFloor 07060089 F08070002 t Information Serial Nbr 07060089 Serial Nbr 08070002 Communication Connected Co
23. Evec Sensor Duo 7509 Save Results Driver First name First name Name Name General Information Company Micromega Dynamics SA Vehicle Forklift AR4 Remark Measurement made on 11 Aug cn Figure 32 Save Results Screen If a valid license key has been entered for the sensor see Section 2 5 the full results will be saved i e vibration time history otherwise only results relating to vibration exposure are saved 3 1 6 Switching off the sensor When the sensor is not in use store it in its casing The magnet hidden in the protection foam switches the sensor off automatically to preserve battery power 37 3 2 Standing operator exposure measurement 3 2 1 Powering on the sensors When the sensors are placed in the casing they are powered off by means of a small magnet hidden in the protective foam Each sensor powers on automatically as soon as it is removed from the casing the green LED briefly goes on to indicate that the sensor is running 3 2 2 Preparing the sensors for taking measurements Step 1 Remove the sensor from its casing and place it within range of the PC on which the software is installed Step 2 Run the EvecSensorDuo software The Welcome screen will appear Figure 33 o Evec Sensor Duo Lots Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You First get a sensor re
24. ady to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results For a later use To continue click Next Figure 33 Welcome Screen Click the Next button 38 Step 3 The measurement configuration selection screen appears Figure 34 Evec Sensor Duo oog Configuration Selection Select the configuration of sensors Exposure of a seated operator on the seat Exposure of a stand up operator EvecFloor and EvecDetect Evec on the floor and EvecDetect S E A T factor s Evec on the seat and EvecFloor Evec on the seat and Evec on the floor Figure 34 Measurement selection screen Choose the Exposure of a standing operator option depending on which sensor you wish to use and click the Next button Step 4 Select the sensors you wish to work with from the two drop down lists Figure 35 E Evec Sensor Duo dow Sensor Selection Select the sensor you want to work with in the drop down list Evecrior Evecbetect F08070002 iv A Information Serial Nbr 08070002 Serial Nbr Communication Connected Communication Figure 35 Sensor Selection Screen Sensor drop down list 39 If
25. are usually used to take measurements throughout the operator s work day shift option 1 in Figure 49 Nevertheless it is possible to assess the vibration exposure by taking a measurement during only a part of the operator s work day shift provided that the operator s work during this period represents the operator s usual exposure to vibration The time period when the operator uses the machine during his her work day shift must then be estimated and entered manually option 2 in Figure 49 Evec Sensor Duo Joe Type of measurement Select the option that matches the type of measurement done Type of measurement Measurement done during a whole work period Measurement done during a part of the work period mm Estimated driver s utilisation time of the vehicle per work day 2 50 lt Back J Next gt Cancel Figure 49 Accessing measurement results type of measurement selection In the case of a large extrapolation i e if the measurement was taken during a short period of time compared to the operators usual operation time during his her work day shift a warning window will pop up Click the Next button to display exposure values 49 Step 8 Measurement results are displayed Figure 50 B Evec Sensor Duo JEE Exposure Results Display of vibration exposure values Sensor Identification F08070002 Measurement Time MT 00 00 32 Serial
26. bration exposure values can be accessed with the EvecSensorDuo software 59 3 3 6 Accessing measurements results Step 1 Place the sensors within range of your PC and run the EvecSensorDuo software Communication cannot be established between the PC and the sensor while the driver is still seated on it the drivers presence is detected and Bluetooth communication is switched off to reduce Evec Sensor power consumption and increase autonomy As soon as the driver can no longer be detected the Bluetooth communication on the sensor is enabled again There may be a few seconds delay before Bluetooth starts running again and the EvecSensorDuo software can begin communicating with the sensor Step 2 If the software has not been launched yet launch it and the Welcome screen will appear Figure 60 B Evec Sensor Duo Lots Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You First get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results For a later use To continue click Next Figure 60 Welcome Screen Click the Next button 60 Step 3 The measurement configuration selection screen appears Figure 61 Evec Sensor Duo
27. cation Measures read successfully successfully Figure 66 Downloading Measurement Results Measures read successfully Click the Next button to select the period of measurement 63 Step 7 The Evec sensors are usually used to take measurements throughout the operator s work day shift option 1 in Figure 67 Nevertheless it is possible to assess the vibration exposure by taking a measurement during only a part of the operator s work day shift provided that the operator s work during this period represents the operator s usual exposure to vibration The time period when the operator uses the machine during his her work day shift must then be estimated and entered manually option 2 in Figure 67 O Evec Sensor Duo m o Type of measurement Select the option that matches the type of measurement done Type of measurement Measurement done during a whole work period Measurement done during a part of the work period hh mm Estimated driver s utilisation time of the 2 vehicle per work day 50 lt Back J Next gt Cancel Figure 67 Accessing measurement results type of measurement selection In the case of a large extrapolation measurement was taken during a short period of time compared to the operators usual operation time during his her work day shift a warning window will pop up i e if the Click the Next button to display exposure value
28. easurement configuration selection screen appears Figure 24 3 Evec Sensor Duo RIS Configuration Selection Select the configuration of sensors Exposure of a seated operator Evec on the seat Exposure of a stand up operator EvecFloor and EvecDetect Evec on the floor and EvecDetect S E A T factor s Evec on the seat and EvecFloor Evec on the seat and Evec on the floor x Back Next gt Cancel Figure 24 Measurement selection screen The last chosen configuration is automatically selected Click the Next button Step 4 Select the sensor you have been working with from the drop down list Evec Sensor Duo oog Sensor Selection Select the sensor you want to work with in the drop down list Evec x J E07060089 Information Serial Nbr Serial Nbr Communication Communication Figure 25 Sensor Selection Screen drop down list 31 The connection process between the EvecSensorDuo software and the Evec sensor will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 26 will be displayed gne E Evec Sensor Duo 7509 Sensor Selection Select the sensor you want to work with in the drop down list Evec 07060089 vl t Information Serial Nbr 07060089 Serial Nbr Communicat
29. ed operator on the seat Exposure of a stand up operator EvecFloor and EvecDetect on the floor and EvecDetect S E A T factor s on the seat and EvecFloor on the seat and Evec on the floor Info lt Back Next gt Cancel Figure 16 Measurement selection screen Choose the option Exposure of a seated operator Evec on the seat and click the Next button Step 4 Select the sensor you wish to work with from the drop down list Figure 17 fe Evec Sensor Duo BAR Sensor Selection Select the sensor you want to work with in the drop down list Evec 07060089 Information Serial Nbr Serial Nbr Communication Communication Figure 17 Sensor Selection Screen Sensor drop down list 24 If the sensor you wish to work with is not listed this is because you have not yet configured the EvecSensorDuo software for it Please refer to section 2 5 to carry out this configuration The connection process between the EvecSensorDuo software and the Evec Sensor will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 18 will be displayed Evec Sensor Duo Loe Sensor Selection Select the sensor you want to work with in the drop down list Evec E07060089 t In
30. een LED charge finished Figure 72 Charging the EVEC Sensor Battery The sensor LED turns red when charging It turns green when fully charged When the battery is almost completely discharged the LED will turn orange for approximately one minute when connecting the charger it will then return to the normal sequence i e the LED will turn red during charging and then green when fully charged If the LED remains orange for a long period the battery can no longer be used If the battery was strongly discharged the LED will not turn green even after hours of charging In this case you should disconnect the sensor from the charger then switch the sensor off and on again to reinitialise the sensor This reinitialisation process can be done by placing the sensor in the casing and taking it out again 71 Section 4 EvecSensor Device Characteristics 4 1 Compliance with standards e The EvecSensor whole body vibration dosimeter has been developed in partnership with the INRS Institut National de Recherche et de S curit en France Research Centre for Safety France under agreement 5061249 The INRS has verified that this device can be used for whole body vibration exposure measurements e Acceptance testing has been carried out according to EN ISO 8041 2005 section 12 e Each manufactured device is tested according to ISO 8041 2005 section 13 4 2 Frequency Weightings The following frequency weight
31. er get the sensor ready for a new measurement or access measures in its memory lt Back Next gt Options Get the Sensors Ready to Measure Wen Sensors Measures lt Back Next gt Cancel Figure 46 Accessing Sensors Measures Click the Next button to access the sensor measurements 47 Step 6 Click the Read button to download the measurement results from the sensors O Evec Sensor Duo QE Measures Download Sensors Identification Serial Nbr Click on the Read button in order to download sensor measures F08070002 08070002 Communication Identification 099080003 Serial Nbr 39080003 Communication Figure 47 Measurement results download Measurements may take a few seconds to download When this process is complete the screen shown in Figure 48 will be displayed O Evec Sensor Duo QE Measures Download Sensors Identification Serial Nbr Communication Click on the Read button in order to download sensor measures F08070002 08070002 Measures read successfully Identification Serial Nbr D99080003 99080003 Communication Measures read successfully Figure 48 Downloading Measurement Results Measures read successfully Click the Next button to select the period of measurement 48 Step 7 The Evec sensors
32. formation Serial Nbr 07060089 Serial Nbr Communication Connected Communication EFFFEFEFFEEFFEFEFEEFEEFEFFEFETI lt Back Next gt Cancel Figure 18 Sensor Selection Screen Connected J Click the Next button 25 Step 5 Select the Get the Sensor Ready to Measure option Figure 19 OO Sensor Duo MA Actions Select one of the options below to either get the sensor ready for a new measurement or access measures in its memory Options NS the Sensors Ready to Measure Access Sensors Measures Figure 19 Prepare the Sensor for Measurement lt Back Next gt Cancel Click the Next button to prepare the sensor for a new measurement Step 6 Click the Trigger On button Figure 20 B Evec Sensor Duo Jog Get the sensor ready to measure Click on the Trigger On button to get the sensor ready for a new measure Sensors Identification E07060089 Identification Serial Nbr 07060089 Serial Nbr Battery Level 80 Battery Level 0 Communication Communication Trigger On Info lt Back Finish Cancel Figure 20 Prepare the Sensor for measurement Trigger On 26 A pop up window will appear telling you that the Trigger On process will erase any previous measurements that may still be stored in the sensor memory Confirm your choice The Trigger On p
33. ger it will then return to the normal sequence i e the LED will turn red during charging and then green when fully charged If the LED remains orange for a long period the battery can no longer be used If the battery was strongly discharged the LED will not turn green even after hours of charging In this case you should disconnect the sensor from the charger then switch the sensor off and on again to reinitialise the sensor This reinitialisation process can be done by placing the sensor in the casing and taking it out again 2 2 Prerequisites Minimum configuration for the PC Microsoft Windows XP Service Pack 2 Microsoft NET Framework 2 0 Hard disk with minimum 5 MB of available space CD ROM drive VGA graphic card or compatible driver with 256 colours or more Keyboard Microsoft mouse or compatible pointing device Running Bluetooth hardware and software driver 2 3 Configuring the Bluetooth Wireless link The EvecSensorDuo software uses a Bluetooth wireless connection to communicate with one or more sensors The Bluetooth wireless link communication setup is similar to that of any other Bluetooth peripheral Please refer to your PC manual or Bluetooth device manual for detailed instructions In practice the Bluetooth link configuration involves the following steps 1 Verify that your PC is equipped with Bluetooth and that it has been enabled 2 Execute a pairing i e create a two way
34. ghout the time the driver is using the vehicle during his her work day shift the utilisation time matches the exposure time ET which is then automatically measured by the Evec dosimeter 35 Awx ET aw ET aw ET These are the RMS weighted accelerations along the X Y and Z axes respectively that have been measured during the Exposure Time period ET a ET This is the maximum of the rms weighted accelerations along the X Y Z axes a PE a PE a PE after multiplication by their respective coefficients 8 au 8 Awz 8 These are the RMS weighted accelerations along the X Y and Z axes respectively that have been calculated for a period of 8 hours A 8 The daily exposure A 8 is expressed as the equivalent continuous acceleration over an eight hour period calculated as the highest rms value along the X Y and Z axes after multiplication by their respective coefficients This daily exposure value is compared to the action and limit values defined by law please refer to the transposition of the European directive 2002 44 EC into the law in your country Click the Next button if you wish to save the measurement results 36 Step 9 The Save Results screen Figure 32 allows you to enter information about the driver and the measurement context and to save this information together with exposure values in a save button or to print them print button E
35. he maximum of the rms weighted accelerations along the X Y Z axes aw PE a PE av PE after multiplication by their respective coefficients awx 8 8 Awz 8 These are the RMS weighted accelerations along the Z axes respectively that have been calculated for a period of 8 hours A 8 The daily exposure A 8 is expressed as the equivalent continuous acceleration over an eight hour period calculated as the highest rms value along the X Y and Z axes after multiplication by their respective coefficients This daily exposure value is compared to the action and limit values defined by law please refer to the transposition of European directive 2002 44 EC into the law in your country Click the Next button if you wish to save the measurement results 51 Step 9 The Save Results screen Figure 32 allows you to enter information concerning the operator and the measurement context and to save this information together with exposure values in a file save button or to print them print button Evec Sensor Duo 7599 Save Results Driver First name First Name Name Name General Information Company Micromega Dynamics Sa Vehicle Forklift Remark Measurement made on 11 Aug Figure 51 Save Results Screen If a valid license key has been entered for the sensor see Section 2 5 the full results will be saved i e vibrati
36. in accordance with local regulations 0 Warning concerning direct sunlight Keep these products away from excessive moisture and extreme temperatures Do not leave the products in a vehicle or in places where the temperature may exceed 60 C 140F such as car dashboard windowsill or behind glass exposed to direct sunlight or strong ultraviolet light for extended periods of time This may damage the products overheat the batteries or pose a risk to the vehicle The sensors in the EVEC product range do not contain any user serviceable parts inside and must never be opened The sensors in the Evec Product range do not contain any user serviceable parts inside They should never be opened and must be returned to the after sales service for any repairs The same applies to the sensors internal batteries which can only be changed at the factory Never remove the screws closing the boxes as this will damage the sensors vi Section 1 Description 1 1 General Description The Evec products range comprises 3 sensors Evec Evec Floor and Detect and the EvecSensorDuo software Used alone or in combination these sensors have been designed to measure whole body vibration exposure for seated and standing operators and calculate the seat s efficiency factor called S E A T The Evec sensor is a dosimeter for measuring vibrations transmitted to the whole body It allows measurement of the vibration levels
37. ing the EvecSensorDuo software Insert the CD ROM provided into your CD ROM drive The installation will start automatically after a few seconds Follow the instructions on the screen 2 5 Configuring the EvecSensorDuo Software Adding a sensor In this section you will learn how to configure the EvecSensorDuo software to operate your first sensor or an additional sensor Step 1 Run the EvecSensorDuo software The welcome screen will appear see Figure 9 Sensor Duo QUE Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You first get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results For a later use To continue click Next conto Figure 9 Welcome Screen Click the Next button for the measurement selection screen 18 Sensor Duc Configuration Selection Select the configuration of sensors Exposure of a sitted operator on the seat Exposure of a stand up operator EvecFloor and EvecDetect on the floor and EvecDetect S E A T factor s Evec on the seat and EvecFloor Evec on the seat and Evec on the floor lt Back Next gt Cancel Figure 10 Measurement selection
38. ings are implemented into the EvecSensor device e W4 frequency weightings along the X and Y axes e W frequency weightings along the Z axis These frequency weightings comply with ISO 2631 the standard referred to for whole body vibration exposure measurements 4 3 Extrapolation Partial Measurement In some cases the user may take a measurement during a period of time that is less than the time the driver normally uses the vehicle during his her work day This is to provide a quick overview of the driver s exposure to vibration For example this is useful when the driver s work is repetitious or cyclic the driver s working conditions and particularly his her exposure to vibration being the same from one cycle to another The user must then estimate the full utilisation time period UT of the vehicle by the driver i e the period of time when he she is present at his her driving position during his her working day The computation for the daily exposure value A 8 is thus as follows A 8 a P 72 where a ET is the maximum of the weighted rms accelerations along the X Y and Z axes measured over the Exposure Time ET the maximum being evaluated after multiplication by the normalised coefficients for each axis a ET max k xa ET k xa xa ET Wx where UT is the utilisation time period of the vehicle by the driver during his her working day 73 4 4 Sensor Dynamics
39. ion Connected Communication CFE BRBRRRRRRRRRRRRRRRRRR lt Back Next gt Cancel Figure 26 Sensor Selection Screen Connected Click the Next button Step 5 Select the Access Sensor Measures option Figure 27 S Evec Sensor Duo Bex Actions Select one of the options below to either get the sensor ready for a new measurement or access measures in its memory Options Get the Sensors Ready to Measure 4 Sensors Measures lt Back Next gt Cancel Figure 27 Accessing Sensor Measures Click the Next button to access the sensor measurements 32 Step 6 Click the Read button to download the measurement results from the Evec sensor 3 Sensor Duo dow Measures Download Click on the Read button in order to download sensor measures Sensors Identification 07050089 Identification Serial Nbr 07060089 Serial Nbr Communication Communication Figure 28 Measurement results download Measurements may take a few seconds to download When this process is complete the screen shown in Figure 29 will be displayed fe Evec Sensor Duo oog Measures Download Click on the Read button in order to download sensor measures Sensors Identification 07060089 Identification Serial Nbr 07060089 Serial Nbr LE Communication Measures read Communication successfully
40. lculate and display the final results of the vibration measurements such as daily vibration exposure A 8 and or the S E A T factors for example Table 1 Configuration of typical measurement Evec Sensor EvecFloor Sensor EvecDetect Sensor Section 2 Installing and Configuring This section describes how to install and configure the Evec devices The Evec sensors only require their internal battery to be charged before first time use To prepare the EVEC reader for use set up a wireless Bluetooth connection between each sensor and the PC and install the EvecSensorDuo software on your PC 2 1 Charging the sensor battery ies Always use the charger supplied Using a charger of a different type to the one supplied may damage the Evec sensor The Evec Evec EvecFloor EvecDetect sensor batteries must be charged before use Remove the sensor s from the casing and connect it to the charger red LED charge ongoing green LED charge finished Figure 1 Charging the Evec sensor battery The sensor LED will turn red when charging It will turn green when the fully charged When the battery is almost completely discharged the LED will turn orange for approximately one minute when connecting the char
41. mation together with exposure values in a save button or to print them print button Evec Sensor Duo 7599 Save Results Driver First name First name Name Name General Information Company Micromega Dynamics SA Vehicle Forklift AR4 Remark Measurement made on 11 Aug x Back Finish Cancel Figure 70 Save Results Screen 3 3 7 Switching off the sensors When the sensors are not in use store them in their casings The magnets hidden in the protection foam switch the sensors off automatically to preserve battery power 68 3 4 TO Time interval setting The Evec range sensors log the measured and cumulated data at high speed within an interval of time TO The default value of TO is 4 seconds This default setting provides sufficient details for most usages In some cases when the operator leaves and returns frequently and briefly for a few seconds to his her driving position i e restocking team working with transpallet the time interval TO of 4 seconds is to high The artefact detection algorithm automatically deletes the vibration measurements during the transition periods at the beginning and at the end of the driver s detection These transition periods often correspond to vibrations that are not generated by the machine but by the driver when he she sits down or leaves his her seat These shocks should be excluded form the whole body vibration ex
42. mmunication Connected EET lt Back Next gt Cancel Figure 63 Sensors Selection Screen Connected Click the Next button Step 5 Select the Access Sensors Measures option Figure 64 c Evec Sensor Duo cog Actions Select one of the options below to either get the sensor ready for a new measurement or access measures in its memory Options Get the Sensors Ready to Measure Sensors Measures lt Back Next gt Cancel Figure 64 Accessing Sensor Measures Click the Next button to access the sensor measurements 62 Step 6 Click the Read button to download the measurement results from the Sensors o Evec Sensor Duo Tog Measures Download Click on the Read button in order to download sensor measures Sensors Identification 07050089 Identification F08070002 Serial Nbr 07060089 Serial Nbr 08070002 Communication Communication Figure 65 Measurement results download Measurements may take a few seconds to download When this process is complete the screen shown in Figure 66 will be displayed Evec Sensor Duo QE Measures Download Click on the Read button in order to download sensor measures Sensors Identification F0 7060089 Identification 08070002 Serial Nbr 07060089 Serial Nbr 08070002 Communication Measures read Communi
43. nd EvecDetect S E A T factor s Evec on the seat and EvecFloor on the seat and Evec on the floor rm Figure 43 Measurement selection screen The last chosen configuration is automatically selected Click the Next button Step 4 Select the sensors you have been working with from the drop down list Figure 44 ers Sensor Duo Woe Sensor Selection Select the sensor you want to work with in the drop down list EvecFloor EvecDetect F08070002 Information Serial Nbr 08070002 Serial Nbr Communication Connected Communication Figure 44 Sensor Selection Screen drop down list 46 The connection process between the EvecSensorDuo software and the sensors Will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 45 will be displayed Evec Sensor Duo Bole Sensor Selection Select the sensor you want to work with in the drop down list EvecFloor Evecpeteck Foso70002 99080003 J Information Serial Nbr 08070002 Serial Nbr 99080003 Communication Connected Communication Connected Figure 45 Sensors Selection Screen Connected Click the Next button Step 5 Select the Access Sensor Measures option Figure 46 fe Evec Sensor Duo Jog Actions Select one of the options below to eith
44. ons time history otherwise only results relating to vibration exposure are saved 3 2 6 Switching off the sensors When the sensors are not in use store them in their casings The magnets hidden in the protection foam switch the sensors off automatically to preserve battery power 52 3 3 Measurement of S E A T factors 3 3 1 Introduction The measurement of the S E A T factors calculates the seated operator exposure as if the Evec sensor is being used alone and the seat s efficiency S E A T factors at the same time 3 3 2 Powering on the sensors When the sensors are placed in the casings they are powered off by means of small magnets hidden in the protective foam Each sensor powers on automatically as soon as it is removed from the casing 3 3 3 Preparing the sensors to take measurements Step 1 Remove the sensors from their casing and place them within range of the PC on which the software is installed Step 2 Run the EvecSensorDuo software The Welcome screen will appear Figure 52 E E ic Evec Sensor Duo Kole Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You first get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results For a later
45. or may be taken from the seat and placed within range of your PC so that the vibration exposure values can be accessed with the EvecSensorDuo software 29 3 1 5 Accessing measurement results Step 1 Place the sensor within range of your PC and run the EvecSensorDuo software Communication cannot be established between the PC and the sensor while the driver is still seated on it the drivers presence is detected and Bluetooth communication is switched off to reduce Evec Sensor power consumption and increase autonomy As soon as the driver can no longer be detected the Bluetooth communication on the sensor is enabled again There may be a few seconds delay before Bluetooth starts running again and the EvecSensorDuo software can begin communicating with the sensor Step 2 If the software has not been launched yet launch it and the Welcome screen will appear Figure 23 rec Sensor Duo GJ Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You First get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results for a later use To continue click Next Figure 23 Welcome Screen Click the Next button 30 Step 3 The m
46. or positioning the EvecDetect sensor The sensor should be positioned appropriately so that it can detect the operator when he she is at his her workstation and stop detecting when he she is away from the workstation The EvecDetect sensor is an infra red sensor and detects anyone or anything within the detection lobe Figure 41 EvecDetect gk 80 cm Figure 41 EvecDetect detection lobe When the EvecDetect sensor detects the operator the LED will remain green for 4 seconds and will blink as long as the operator is detected When the operator leaves the field of detection the LED becomes red for 4 seconds then continues to blink until the operator is detected again or the results are downloaded to the EvecSensorDuo software 3 2 4 Operating Both sensors work in an autonomous way The EvecFloor sensor or the Evec sensor stores vibration measurements along the X Y and Z axes during the entire measurement period The EvecDetect sensor works like a presence detector and stores the periods when the operator has been exposed to vibration Once the operator has finished his her work the Evec sensors may be taken away and placed within range of your PC so that the vibration exposure values can be accessed with the EvecSensorDuo software 44 3 2 5 Accessing measurements results Step 1 Place the sensors within range of your PC and run the EvecSensorDuo software Communication cannot
47. oth utility searches for Bluetooth devices within range of your PC After a few seconds the detected Bluetooth devices are displayed screen shown in Figure 6 Add Bluetooth Device Wizard Select the Bluetooth device that you want to add o deskjet 995c S N VEC D ASICOVJOL EVEC 00000011 m MIMEG COP 22 2530 New device New device 4 If you don t see the device that you want to add make sure that it is turned on Follow the setup instructions that came with the device and then click Search Again Search Again Figure 6 Bluetooth Adding a Bluetooth Device Step 3 The Evec sensor appears in the list under the following name EVEC XXXXXXXX where XXXXXXXX is the serial number of your Evec sensor This number is also engraved on the metallic part located on the base of the Evec sensor and on the case of the EvecDetect and EvecFloor sensors Click the icon representing your Evec sensor to activate it and click the Next button 15 Step 4 The passkey management screen Figure 7 will appear Select the Use the passkey found in the documentation option and enter the serial number XXXXXXXX of your sensor in the corresponding field Add Bluetooth Device Wizard Do you need a passkey to add your device To answer this question refer to the Bluetooth section of the documentation that came with your device If the documentation specifies a passkey use that one Choose a passkey for me
48. posure measurements However each time the driver leaves briefly his her driving position an interval of TO 4 seconds is excluded from the calculation of the vibration exposure This specific usage could lead to an undervaluation of the exposure time The interval TO can be set in the EvecSensorDuo software at 4 2 or even 1 second s To set up the time interval click the Config button and the setup screen appears Figure 71 E Configuration TO Setting 4 seconds 2 seconds 1 second Figure 71 TO time setting screen Select the TO time interval and click OK 69 The interval time value TO can only be configured before the measurements have been taken and before you click the Trigger on button The TO value is sent to the sensors when you click the Trigger on button CAS Some Evec sensors can only be configured with a time interval of 4 seconds If the configured time interval TO value cannot be handled by your sensor you will receive an alert message and the time interval T0 is set at the default value of 4 seconds The Evec sensor microsoftware can be updated to enable the handling of different T0 values contact your distributor for this update 70 3 5 Charging the sensor battery Always use the charger supplied Using a charger other than the one provided may damage the Evec sensor s red LED charge ongoing gr
49. r to show all the icons 12 If your PC is not equipped with Bluetooth technology you can purchase a Bluetooth USB adapter at any computer store It will be supplied with the necessary software Bluetooth stack to install the Bluetooth technology on your computer 2 3 2 Bluetooth amp pairing and communication port setup A Bluetooth wireless communication between 2 devices first requires a pairing i e the 2 devices must be able to recognise each other before they can communicate regularly During this operation which is carried out once for any given pair of devices the 2 devices exchange their basic characteristics Once the pairing is done they can detect and recognise each other and then exchange data as soon as they are within transmission range of each other i e while they are a few metres away from each other A Bluetooth communication port with the sensor must also be created on the PC The above mentioned operations pairing and port creation are typical of Bluetooth technology they are required for any Bluetooth device pair with which you wish to exchange data wirelessly Hence these operations are carried out using the Bluetooth utility on your PC that has either been installed at the factory if your PC is equipped with internal Bluetooth technology or that you have purchased with an external Bluetooth amp USB adapter By way of example the setup using the Windows
50. rement of exposure of a seated operator e Measurement of exposure of a standing operator e Measurement of seat s efficiency S E A T factors 22 3 1 Seated operator exposure measurement 3 1 1 Powering on the sensor When the sensor is placed in the casing it is powered off by means of a small magnet hidden in the protective foam It powers on automatically as Soon as it is removed from the casing the green LED briefly goes on to indicate that the sensor is running 3 1 2 Preparing the sensor for taking measurements Step 1 Remove the sensor from its casing and place it within range of the PC on which the software is installed Step 2 Run the EvecSensorDuo software The Welcome screen will appear Figure 15 Evec Sensor Duo Lots Welcome to the exposimeter management software This wizard helps you to manage one or more sensors You first get a sensor ready to measure After the vibration exposure measurement this software computes and displays vibration exposure values and show you how they compare with levels defined in the vibration directive You can also document print and save results For a later use To continue click Next Figure 15 Welcome Screen Click the Next button 23 Step 3 The measurement configuration selection screen appears Figure 16 Evec Sensor Duo 7909 Configuration Selection Select the configuration of sensors Exposure of a seat
51. rip of adhesive tape but this is not a mandatory requirement for ensuring reliable and accurate measurements When seated the driver must cover the sensor completely In some types of vehicles the driver will not be facing the driving moving direction According to the standard the X Y and Z axes are referenced to the driver s body the X axis referring to the back to chest direction 28 Note that the sensor must be prepared for measurement before the driver sits on it There is no communication possible between the reader software and the sensor when the drivers presence is detected Bluetooth communication is switched off to reduce power consumption and increase sensor autonomy When the driver sits on the sensor the LED initially turns green for about 4 seconds and then starts to blink green as the driver s presence is detected When the driver leaves the seat the LED will turn red for about 4 seconds and then starts to blink red until the driver is seated again or the user establishes a connection to the sensor using the EvecSensorDuo software 3 1 4 Operating The EVEC sensor then becomes autonomous and stores vibration measurements along the X Y and Z axes during the time the driver is using the vehicle The time during which the driver is exposed to vibration is also measured by means of the integrated presence sensor Once the driver has finished his her work the Evec sens
52. rocess may take a few seconds If this process is successful the screen shown in Figure 21 is displayed Sensor Duo Jeg Get the sensor ready to measure Click on the Trigger On button to get the sensor ready for a new measure Sensors Identification EQ7O60089 Identification Serial Nbr 07060089 Serial Nbr Battery Level 70 Battery Level 0 Communication The sensor is Communication ready to measure lt Back ben Cancel Figure 21 Preparing the sensor for taking measurements Sensor ready to measure The sensor is then ready to take measurements You can exit the EvecSensorDuo software Finish Button and install the sensor on the driver s seat The LED is blinking red as soon as the EVEC sensor is ready to take measurements 27 3 1 3 Installing the sensor on the seat Standards define 3 axes the X axis towards the front the Y axis towards the left and the Z axis towards the top Accelerations will be measured along these 3 axes in order to retrieve the driver s whole body exposure Figure 22 Definition of X Y and Z axes driver s position in relation to the Evec sensor The sensor must be placed on the driver s seat and oriented as shown in Figure 22 The bump on the top surface of the sensor that houses the charger connector matches the X axis and must be facing forward The sensor may be kept in place using a st
53. s 64 Step 8 The measurement results are displayed Figure 68 g Evec Sensor Duo BAX Exposure Results Display of vibration exposure values Sensor Identification E07060089 Measurement Time MT 01 07 28 Serial Nbr 07060089 Exposure Time ET 00 32 16 Trigger On 13 08 2008 17 25 40 Utilisation Time LIT 05 00 00 Axis Accelerations over ET Daily Vibration Exposure x 1 4 x awx ET 0 29 m s 1 4 x awx 8 0 23 m s Y 1 4 x awy ET 0 19 m s 1 4 x awy 8 0 15 m s 2 1 0 x awz ET 0 39 m s 1 0 x awz 8 0 31 m s aeq ET 0 39 m s A 8 0 31 m s The daily vibration exposure A 8 is lower than the values defined in the vibration directive Figure 68 Display of measurement results exposure values Measurement Time MT This is the duration between the time the operator is first detected to the last time he she is detected Exposure Time ET This is the time period when the operator is exposed to vibration during the measurement process This is the measurement time MT minus time periods when the operator was not detected Utilisation Time UT This is the time when the operator is working during his her work day shift i e the time where he she is actually present If the measurement is taken throughout the time the operator is detected during his her work day shift the utilisation time matches the exposure time ET which is then automatically measured by the E
54. s define 3 axes the X axis towards the front the Y axis towards the left and the Z axis towards the top Accelerations will be measured along those 3 axes in order to retrieve the driver s whole body exposure 57 Figure 59 Definition of X Y and Z axes driver s position in relation to the Evec sensors The sensor must be placed on the driver s seat and oriented as shown in Figure 59 The bump on the top surface of the sensor that houses the charger connector matches the X axis and must be facing forward The sensor may be kept in place using a strip of adhesive tape but this is not a mandatory requirement for ensuring reliable and accurate measurements When seated the driver must cover the sensor completely In some types of vehicles the driver does not face the driving moving direction According to the standard the X Y and Z axes are referenced to the driver s body the X axis referring to the back to chest direction Note that the sensor must be prepared for measurement before the driver sits on it There is no communication possible between the reader software and the sensor when the drivers presence is detected Bluetooth communication is switched off to reduce power consumption and increase sensor autonomy 58 When the driver sits on the Evec sensor the LED first turns green for about 4 seconds and then starts to blink green as the driver s presence is detected When the dri
55. the sensor you wish to work with is not listed this is because you haven t yet configured the EvecSensorDuo software Please refer to section 2 5 to carry out this configuration The connection process between the EvecSensorDuo software and the sensors will begin this connection process may take a few seconds to complete Once the connection is established the screen shown in Figure 36 will be displayed 5 LJ O Evec Sensor Duo Loe Sensor Selection Select the sensor you want to work with in the drop down list EvecFloor EvecDetect v D99080003 5 Information Serial Nbr 08070002 Serial Nbr 99080003 Communication Connected Communication Connected CT lt Back Next gt cancel J Figure 36 Sensor Selection Screen Connected Click the Next button 40 Step 5 Select the Get the Sensors Ready to Measure option Figure 37 ess Sensor Duo Boe Actions Select one of the options below to either get the sensor ready for a new measurement or access measures in its memory Options ke the Sensors Ready to Measure Access Sensors Measures Figure 37 Preparing the Sensors to take Measures Click the Next button to prepare the sensors for a new measurement Step 6 Click the Trigger On button Figure 38 B Evec Sensor Duo 27509 Get the sensor ready to measure Click on the Trigger On
56. tion Trigger On Figure 57 Preparing the Sensors to take measurements Trigger 56 A pop up window will appear telling you that the Trigger On process will erase any previous measurements that may still be stored in the sensor memory Confirm your choice The Trigger On process may take a few seconds If this process is successful the screen shown in Figure 58 is displayed Evec Sensor Duo BAX Get the sensor ready to measure Click on the Trigger On button to get the sensor ready for a new measure Sensors Identification F07060089 Identification 08070002 Serial Nbr 07060089 Serial Nbr 08070002 Battery Level 70 Battery Level 7090 Communication The sensor is Communication The sensor is ready to measure ready to measure dd lt Back Finish Cancel Figure 58 Preparing the sensors to take measurements Sensors ready to measure The sensors are then ready to take measurements You can exit the EvecSensorDuo software Finish Button and install the sensors on the seat and on the floor The LED of the Evec sensor blinks red as soon as the Evec sensor is ready to take measurements The LED of the EvecFloor sensor or the Evec sensor on the floor blinks green as soon as the EvecFloor sensor is ready to take measurements 3 3 4 Installation of the sensors 3 3 4 4 Sensor on the seat Standard
57. tooth enabled gt 10 hours e Minimum number of allowed battery charge cycles 400 6 4 Physical Sensor Characteristics Dimensions Length 65 mm Width 62 mm Height 38 mm Weight 195 grams with fixing magnets 6 5 Environment Sensor temperature operating range from 10C to 50 from 06 to 40 when charging 6 6 Charger Input 100 240 VAC 50 60Hz 150mA Output 5 VDC 1000 mA 81 6 7 Wireless Link Bluetooth Class 2 Communication up to 30m open field Nominal Emission Power 4dBm Nominal Sensitivity 84dBm ISM Band 2 4GHz 6 8 Electromagnetic Compatibility e Radiated emissions tested according to EN 55022 e Immunity tested according to EN 61000 4 8 6 2 3 82 Section 7 Support If you encounter any problems when installing or operating the equipment you can obtain support By contacting your local distributor By visiting the http www body vibration eu web site By sending an email to support body vibration eu 83 Manufactured by MICROMEGA D Y N A M I C S Micromega Dynamics SA Industrial Park Noville Les Bois Rue du Trou du Sart 10 B 5380 Fernelmont Belgium Phone 32 0 81 248 100 Fax 32 0 81 248 101
58. use To continue click Next Figure 52 Welcome Screen Click the Next button 53 Step 3 The measurement configuration selection screen appears Figure 53 Evec Sensor Duo Boe Configuration Selection Select the configuration of sensors Exposure of a seated operator Evec on the seat Exposure of a stand up operator EvecFloor and EvecDetect Evec on the floor and EvecDetect S E A T factor s Evec on the seat and EvecFloor Cie on the seat and Evec on the floor lt Back Jt Next gt Cancel Figure 53 Measurement selection screen Choose the S E A T factor s option depending on which sensor you wish to use and click the Next button Step 4 Select the sensors you wish to work with from the two drop down list Figure 54 o Evec Sensor Duo QUE Sensor Selection Select the sensor you want to work with in the drop down list Evec EvecFloor E 07060089 1 Information Serial Nbr 07060089 Serial Nbr Communication Connected Communication Figure 54 Sensor Selection Screen Sensor drop down list 54 If the sensor you wish to work with is not listed this is because you have not yet configured the EvecSensorDuo software Please refer to section 2 5 to carry out this configuration The connection process between the EvecSensorDuo software and the
59. vecDetect sensor aw ET au ET These are the RMS weighted accelerations along the X Y and Z axes respectively that have been measured during the Exposure Time period ET 65 a ET This is the maximum of the rms weighted accelerations along the X Y Z axes aw PE a PE av PE after multiplication by their respective coefficients awx 8 8 Awz 8 These are the RMS weighted accelerations along the Z axes respectively that have been calculated for a period of 8 hours A 8 The daily exposure A 8 is expressed as the equivalent of continuous acceleration over an eight hour period calculated as the highest rms value along the X Y and Z axes after multiplication by their respective coefficients This daily exposure value is compared to the action and limit values defined by law please refer to the transposition of the European directive 2002 44 EC into the law in your country Click the Next button to access the S E A T factors 66 Step 9 The S E A T factors are displayed Figure 69 Evec Sensor Duo EAX SEAT Factors SEAT factors computations Criterion Duration 8 sec Threshold 0 1 mjs S Evec Sensor Floor Sensor SEAT Computation sd factors Period 07060089 08070002 x 1 4 x awx 0 36 m s 1 4 x awx 0 40 m s 89 00 14 24 Y 1 4 x awy 0 30 m s 1 4 x awy 0 31 m s 99 00 07 12 1 0 x awz 0 46 m s 1 0 x awz 0 41
60. ver leaves the seat the LED will turn red for about 4 seconds and then starts to blink red until the driver sits down again or the user establishes a connection to the sensor using the EvecSensorDuo software 3 3 4 2 Sensor on the floor The EvecFloor sensor should be positioned in the same orientation as the sensor on the seat the X Y and Z axes of each of the 2 sensors must be the same The EvecFloor should be firmly fixed on the floor The EvecFloor sensor should be fixed on the floor straight above the Evec sensor on the driver s seat If this is not possible for example because the space under the seat is not sufficient the EvecFloor Sensor can be secured to the seat framework using the magnets provided These magnets can be secured to the lateral side of the sensor in the threaded holes If you are using an Evec sensor instead of an EvecFloor sensor the Evec sensor should be firmly fixed on the floor This can be done if there is sufficient space using a sandbag of approximately 10kg placed on the sensor 3 3 5 Operating The sensors then become autonomous and store vibration measurements along the X Y and Z axes during the time the driver is using the vehicle The time during which the driver is exposed to vibration is also measured by means of the integrated presence sensor Once the driver has finished his her work the two sensors may be taken away and placed within range of your PC so that the vi
61. vib uwork Evec Evec Floor et Evec Detect Whole Body Vibration Dosimeter Range User Manual EvecSensorDuo Software for PC Version 2 0 P R 1 1 4 0 0 1 0 0 2 Bluetooth EMC PDA USB GLOSSARY Set of technologies allowing wireless data transmission over short distances Electromagnetic Compatibility Personal digital assistant Universal Serial Bus TABLE OF CONTENTS SECTION 1 DESCRIPTION cccscsssssosccssccssscesscesscesesesessonse 7 1 1 GENERAL DESCRIPTION 7 SECTION 2 INSTALLING AND CONFIGURING 10 2 1 CHARGING THE SENSOR BATTERY IES en 10 2 2 PREREQUISITES eene epa agn done 11 2 3 CONFIGURING THE BLUETOOTH WIRELESS LINK 11 2 3 1 Is BLUETOOTH INSTALLED ON YOUR 12 2 3 2 BLUETOOTH PAIRING AND COMMUNICATION PORT SETUP 13 2 4 INSTALLING THE EVECSENSORDUO SOFTWARE 18 2 5 CONFIGURING THE EVECSENSORDUO SOFTWARE ADDING A SENSOR is Z ROUES DD EE 18 SECTION 3 22 3 1 SEATED OPERATOR EXPOSURE 23 3 1 1 POWERING ON THE SENSOR n 23 3 1 2 PREPARING THE SENSOR FOR TAKING MEASUREMENTS 23 3 1 3 INSTALLING THE SENSOR ON THE
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