EC type-examination certificate UK/0126/0098
Contents
1. NET weight of transaction and unit of measurement RFID tag number if used Lifter used left right or trade with trade used to designate large bins 2 3 4 The indicator runs through a standard check at power up defects shall be obvious to the user and displayed as error messages 3 11 2 3 5 2 4 The following interlocks prevent the weighing process Real time clock not running Storage card not responding Load cell output error Operation A bin is placed on the lifter The lifter raises the bin The RFID tag is read when present Lifter reached weighing position UP weight is calculated Bin contents is emptied into the vehicle Lifter then lowers to weighing position DOWN weight is calculated Resultant NET weight is calculated displayed and recorded Bin is removed Sequence complete TECHNICAL DATA The system has the following technical characteristics Small bin Large bin Maximum capacity Max lt 100 kg lt 300 kg Scale interval e 21kg 22kg Minimum capacity Min 25kg 2 10 kg Operation Static Dynamic Climatic environment 20 C to 50 C 350 indicator Non condensing closed 350 indicator in IP66 enclosure and other parts Condensing open Electromagnetic environment E3 Power supply 9 32 VDC via 12 or 24 V vehicle battery Accuracy class Y b Cable length load cell to indicator 5m 3 2 Documentation an2. Figure 2 Block diagram TERMINATION CONNECTOR Figure 3 Load cell mounted on lifter Figure 4 Control and UO boards in enclosure Figure 5 Indicator near operating console Figure 6 RFID antenna at rear of vehicle Figure 7 RFID control box at rear of vehicle VEHICLE WEIGHING SULUTIONS LIMITED CERTIFICATE SMALL BIN DYNAMIC SMALL BIN STATIC LARGE BIN DYNAMIC LARGE BIN STATIC UK 0126 0098 TEMP RANGE MAX lt ko MAX lt ko MAX lt ko MAX ko 20 C TD 50 C s EMC CLASS E3 MIN lt ko MIN kg MIN kg MIN ko VOLTAGE L 9 32 VDC e kg e ko ko e kgo ACCURACY CLASS 9 e CALIBRATION NO Figure 8 Rating plate 10 Figure 9 Labelled weigh control enclosure Crown Copyright 2012 NATIONAL MEASUREMENT OFFICE Department for Business Innovation amp Skills 11
3. be impossible to remove without damaging it The labels shall be impossible to remove without them being destroyed The markings and inscriptions shall fulfil the requirements of Paragraph 9 of Annex I of the Directive 2004 22 EC 6 2 Access to the configuration and calibration facility is via the password protection on the 350 display 6 3 Every time the configuration or calibration is modified the calibration number counter is incremented see 3 3 2 and shall to be recorded on the instrument on a descriptive label near the rating plate The label shall be impossible to remove without being destroyed 6 4 Components that may not be dismantled or adjusted by the user will be secured by common serial numbers a wire and seal or tamper evident label and securing mark The securing mark may be either amark ofthe manufacturer and or manufacturer s representative or an official mark of a verification officer 7 ALTERNATIVES There are at present no alternatives 6 11 8 ILLUSTRATIONS Figure 1 Typical installation Figure 2 Block Diagram Figure 3 Load cell mounted on the lifter Figure 4 Control and UO boards in enclosure Figure 5 Indicator near operating console Figure 6 RFID antenna at rear of vehicle Figure 7 RFID control box at rear of vehicle Figure 8 Rating plate Figure 9 Labelled weigh control enclosure 9 CERTIFICATE HISTORY ISSUENO DATE DESCRIPTION UK 0126 0098 19 March 2012 Type examination certi
4. numbers and fault diagnosis Communication is via CAN messaging Figure 5 shows the indicator 2 2 6 RFID Control module Tag readers The RFID control module is housed in a die cast IP66 sealed enclosure The unit can power up to 2 separate RFID antennas RFID tag information is decoded and transmitted via CAN messaging Figure 6 shows the RFID antenna and Figure 7 shows the RFID control module 2 3 Devices and interlocks 2 3 1 The instrument is provided with a semi automatic zero setting the range of zero is 2 Max 2 3 2 The calculation of net weights are determined by the difference between the rising full bin and falling empty bin hence any errors due to a drift of zero cannot affect the net result provided the drift remains in an acceptable range This is achieved by checking the real time mV output of the load cell while a bin is not on the lifter If the drift remains outside the pre set limit of 2 Max from the zero point over consecutive samples for 5 seconds a flag will be set and weighing shall be prevented If the output drifts back into range the flag will be cleared and weighing resumed 2 3 3 Data storage The measurement data is automatically stored in an internal SD card located in the sealed weighing module and can be retrieved via the communication ports The following data is recorded Weigh module serial number Incremental transaction number Data of transaction Time of transaction
5. B Rev 2 01 April 2011 Descriptive Annex 1 INTRODUCTION The instrument designated the Enviroweigh is a battery operated automatic catchweighing instrument consisting of load cells electronic equipment and position sensors mounted at the rear of a bin collection vehicle The instrument automatically determines the weight of the loaded bin during the lifting process then the weight of the empty bin on the way down to determine the net weight of refuse emptied The instrument is designed to weigh statically or dynamically In addition the bin may be identified by an RFID tag reader system The data is displayed on an indicator mounted near the operating console Each lifting chair at the back of the vehicle is fitted with one load cell the outputs are used by the instrument using dual channel configuration to determine the weight of individual bins 2 wheeled bins left and right hand sides or large bins 4 wheeled bins the weights for each channel being added to obtain the total weight 2 FUNCTIONAL DESCRIPTION 2 1 Mechanical Figure 1 shows a typical installation with Figure 2 showing the block diagram for the instrument 2 1 1 Load cell The instrument comprises one small bin or two large bin load cells type DT4650 maximum capacity 1000kg mounted on the lifter at the rear of the vehicle Figure 3 2 1 2 Inclinometer The instrument comprises an inclinometer type ADXL325 or ADXL327 manufactured by Analogue Devices and
6. National UK 0126 0098 Measurement Office MI 006 EC type examination certificate UK 0126 0098 Issued by The National Measurement Office Notified Body Number 0126 In accordance with the requirements of the Measuring Instruments Automatic Catchweighers Regulations 2006 SI 2006 1257 and the Measuring Instruments Non Prescribed Instruments Regulations 2006 SO 2006 1270 which implement in the United Kingdom Council Directive 2004 22 EC this EC type examination certificate has been issued to Vehicle Weighing Solutions Limited Southview Park Caversham Reading Berkshire RG4 5AF United Kingdom in respect of a vehicle mounted automatic catchweighing instrument designated the Enviroweigh and having the following characteristics Maximum capacity Max s 300 kg Minimum capacity Min 2 5 kg Scale interval e 2 1 kg Accuracy class Y b The necessary data principal characteristics alterations securing functioning etc for identification purposes and conditions when applicable are set out in the descriptive annex to this certificate Issue Date 19 March 2012 Valid Until 18 March 2022 Reference No TS0101 0002 Signatory P R Dixon do for Chief Executive V UKAS National Measurement Office Stanton Avenue Teddington TW11 0JZ United Kingdom certirication Department for Business Tel 44 0 20 8943 7272 Fax 44 0 20 8943 7270 Web www bis gov uk nmo 0135 Innovation amp Skills MID Annex
7. Peripheral devices The instrument may be connected to any peripheral device that has been issued with a test certificate or parts certificate by a Notified Body responsible for Annex B MI 006 under Directive 2004 22 EC in any Member State and bears the CE marking of conformity to the relevant directives or A peripheral device without a test certificate may be connected under the following conditions it bears the CE marking for conformity to the EMC Directive it is not capable of transmitting any data or instruction into the weighing instrument other than to release a printout checking for correct data transmission or validation it prints weighing results and other data as received from the weighing instrument without any modification or further processing and it complies with the applicable requirements of Paragraph 8 1 of Annex I 5 11 5 APPROVAL CONDITIONS The certificate is issued subject to the following conditions 5 1 Legends and inscriptions 5 1 1 The following legends are durably and legibly marked on a label Figure 8 fixed on the control enclosure so that it is visible to the user Figure 9 CE marking Supplementary metrology marking Notified Body verification mark Accuracy class Serial number Manufacturers mark or name Certificate number Max Min e 5 1 2 All components are identified by individual serial numbers 6 LOCATION OF SEALS AND VERIFICATION MARKS 6 1 The CE mark shall
8. d drawings Enviroweigh manual ver 2 8 User manual GA 04298 issue 2 Enviroweigh mounting arrangement GA 04247 issue 4 Enviroweigh Schematic RFID_issue_4 0 RFID board PCB layout WEIGH_issue_7 0 Weigh board PCB Layout INTERFACE_issue_5 0 Control UO board PCB layout rfid4 sch RFID board Circuit diagram weigh7 sch WEIGH board Circuit diagram io5 sch Control I O board Circuit diagram 4 11 3 3 Software 3 3 1 Verification information On power up the LED pixels on the 350 display are inverted to confirm operation The display shows the software firmware version The weighing module version 3 00 last calibration date and incremental calibration number are then displayed on the screen before the system reverts to normal weighing mode 3 3 2 Security The source code is compiled and downloaded into the micro controller The device is then protected to prevent removal or modification of the software code Calibration is accessed via a password protected parameter When a calibration is carried out the date and incremental calibration number is recorded to solid state flash memory The solid state flash memory is sealed within the weighing module On power up the date and sequential calibration number is displayed on the screen prior to system operation 4 PERIPHERAL DEVICES AND INTERFACES 4 1 Interfaces The instrument may have the following interfaces wire load cell connection RS232 CAN bus communication 4 2
9. ficate first issued 7 11 WEIGHT DISPLAY REAR VIEW DF M350S WEIGHT DISPLAY ANALOGUE CANBUS COMMS CHANNEL 1 OPTION ANALOGUE RS232 CUMMS OPTION POWER INPUT 12 OR 24 Vdc FROM IGNITION SYSTEM CAND OPTIONAL ALARMS LOAD CELL AND INCLINOMETER LOAD CELL AND INCLINOMETER OPTIONAL RFID YELLOW SIGNAL WHITE SENSE BROWN BLACK SENSE INCLINUMETER dips INCLINOMETER e 12 24V BROWN Ov BLUE Figure 1 Typical installation WEIGHING MODULE COAD CELL 1 gt AMPLIFIER ADC gt gt MICRO REAL CONTROLLER TIME CLOCK ETAD CELE 2 ee AMPLIFIER a ADC gt gt CAN BUS BP RETENTION I H CONTROL MODULE gt EINTR PEE Co nurus CONTROL MICRO DIGITAL OUTPUTS A CONTROLLER Qe Qmm 00050 INPUTS RFID CONTROL MODULE RFID p E Zei L t CONTROL MICRO ANTENNA CONTROLLER RFID Se lt Q ANTENNA WEIGH DISPALY CAN BUS DP ie ucro SSS SSS CONTROLLER
10. mounted near the lifter The sensor acts as a switch and prevents weighing above the maximum tilt angle The maximum tilt angle shall be determined at initial verification and protected as part of the legally relevant parameters and shall not exceed 896 2 1 3 Position sensor A position sensor type IFS209 manufactured by Pepperl amp Fuchs is mounted on the lifter Its output is used to determine the weighing window within which the dynamic weight is calculated 2 2 Electrical 2 2 1 The pattern operates from 9 32 V DC supplied from the 12 or 24 V DC vehicle battery The indicator console is fitted with a non volatile static RAM with Lithium battery to maintain the basic functions such as clock etc 2 2 2 PCB CPU ADC The load cell output is digitized by the AD converter type CS5532 24 bit manufactured by Cirrus Logic 2 11 2 2 3 Weighing module The weigh module is housed in a die cast IP66 sealed enclosure Calibration setting transaction record and configuration settings are stored on a solid state flash memory Communication is via CAN messaging Figure 9 shows the weighing module 2 2 4 l O Control module The I O control module is housed in a die cast IP66 sealed enclosure Digital input output signals from the vehicle are processed and communication is via CAN messaging Figure 4 shows the I O control module 2 2 5 Indicator The 350 weight indicator displays weight data current lifter status total weights RFID tag
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