Certificate of EC type-approval of a measuring instrument ......Avery 8701 SK648, 23, E Max/14164 5000 70712-136, 45 70714-162 The Avery 8701 load cell may be incorporated into a multi-interval

(UK 2477)

V(0)a

United Kingdom of Great Britain and Northern Ireland

Certificate of EC type-approval of a

measuring instrument

Number: UK 2477 Revision 3 issued by the Secretary of State for Innovation, Universities & Skills

Notified Body Number 0126

In accordance with the requirements of the Non-automatic Weighing Instruments

Regulations 2000 (SI 2000/3236) which implement, in the United Kingdom, Council

Directive 2009/23/EC, this certificate of EC type-approval has been issued to:

Central Weighing Ltd

Unit 142

Hartlebury Trading Estate

Kidderminster

Worcestershire, DY10 4JB

United Kingdom

in respect of a Class III non-automatic weighing instrument utilising the Supaweigh

indicating device, model 3000, 4000 or 5000c connected to a platform.

n ≤ 10,000 for Class III instrument with single interval

n ≤ 1,000 for Class IIII instrument with single interval

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.

This Revision replaces earlier versions of the certificate.

Signatory: P R Dixon

For: Chief Executive National Weights & Measures Laboratory

(Part of the National measurement Office)

Department for Business, Innovation & Skills

Stanton Avenue

Date: 26 November 2010 Teddington

Valid Until: 04 January 2018 TW11 0JZ

Reference No: T1145/0003 United Kingdom

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Descriptive Annex

1 NAME AND TYPE OF INSTRUMENT

This instrument is a digital weight-indicating device designated the Supaweigh, models 3000,

4000 and 5000c (see Figures 1, 2, 3 and 4).

2 FUNCTIONAL DESCRIPTION

2.1 Construction, Devices

The Supaweigh digital indicator and its devices are fully described in Test Certificate No.

GB-1038.

2.2 Load cells

2.2.1 Any load cell(s) may be used for instruments under this Type-approval

certificate provided the following conditions are met:

(i) There is a respective OIML Certificate of Conformity (R60) or a test

certificate (EN45501) issued for the load cell by a Notified Body responsible

for type examination under Directive 2009/23/EC.

(ii) The certificate contains the load cell types and the necessary load cell data

required for the manufacturer’s declaration of compatibility of modules

(WELMEC Guide 2, Issue 3, 2000, No 11), and any particular installation

requirements. A load cell marked NH is allowed only if humidity testing to

EN45501 has been conducted on this load cell.

(iii) The compatibility of the load cells and indicator is established by the

manufacturer by means of the compatibility of modules calculation, contained

in the above WELMEC Guide 2 document, at the time of verification or

declaration of EC conformity of type.

(iv) The load cell transmission must conform to one of the examples shown in the

WELMEC Guide 2.4, “Guide for Load cells”.

2.2.2 The load transmission may conform to one of the following load cell

mounting assemblies:

Type Drawing No Issue Date

Shearbeam Ball & cup M405A 20 June 1991

5102 M411A October 1993

T95 M412A December 1993

Double Shearbeam M1101A 15 June 1991

Compression M603A, M604A 20 June 1991, 20 June 1991

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2.3 Any simple recipient printer may be used if:

− it bears the CE marking for conformity to the EMC Directive;

− it is not capable of transmitting any data or instruction into the indicator other

than to release a printout, checking for correct data transmission;

− it prints weighing results and other data as received from the indicator without

any modification or further processing; and

− it complies with the applicable requirements of EN45501, i.e. 4.2, 4.4, 4.6 and

4.7.

2.4 The instrument (Supaweigh 3000, 4000 and 5000c) may be connected to the

Avery 8701 load cell to form a complete weighing system in which case the load cell output

is linearised digitally at up to nine points on the output. The entered load and unlinearised

figures are stored in NOVRAM and when in weighing operation mode the relevant

calculation is used to linearise the digitised load cell signal to give a linearised weight display

reading.

Load cell Mounting Drawing Max (t) vMin on linearised output nMax

Avery 8701 SK648, 23, E Max/14164 5000

70712-136, 45

70714-162

The Avery 8701 load cell may be incorporated into a multi-interval instrument, with two

partial ranges, of not more than 3000 divisions per partial range.

2.5 The instrument (Supaweigh 3000, 4000 and 5000c) may be connected to a

maximum of three Avery Y101 load cell cornering units each of which should be sealed. The

maximum number of load cells that may be connected to each Y101 unit is 8, thus the

maximum number of load cells that can be used in this system is 24.

2.6 The maximum number of divisions nmax is as per GB-1038.

2.7 The instrument (Supaweigh 3000, 4000 and 5000c) may be connected to

Avery T301 digital load cells via an Avery T301 digital load cell junction box.

Analogue-to-digital conversion is performed in the T301 load cells. The circuit contains a

programmable gain amplifier set to a gain of 100 and a 20 bit A/D convertor and digital filter.

The effective sample rate of the AID is 16 kHz.

Various internal registers exist to enable programming of gain, offsets and operating modes.

The processor writes to these registers only at power up and also reads the registers back so

as to ensure that the device is correctly programmed. The register values are factory set.

The load cell column gauges provide a signal which is suitably decoupled before reaching the

A/D convertor chip.

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An A/D reference voltage is generated by dividing down the excitation voltage using

precision resistors.

Provision is made in the T301 load cell's analogue-to-digital processing to compensate for

changes in temperature by using an integrating A/D converter controlled by the processor.

The processor uses a timer to provide both a constant ramp-up time and to measure the

temperature dependant ramp-down period.

The weight is passed onto two digital filters after being temperature compensated. After

filtering, the weight is converted from counts to divisions and also linearised in one function.

The formula is stored in EPROM but is copied into RAM at power-up.

The weight is then passed to a junction box. The junction box has a painted mild steel

enclosure with cable entry glands for load cell cables (maximum 8-off), indicator cable and

mains supply cable. It has a lid secured with four screws which gives access to the internal

components.

Internally, the junction box contains two PCBs:

(i) Power supply PCB, part no.71014-880

This contains a mains transformer, rectification and regulation circuitry to provide the +/- 9 V

DC power supply to the connected T3011oadcel1s. Connectors are provided on the PCB to

allow up to eight T301 load cells to be connected and for a cable to the indicator. The PCB

also incorporates surge arresters and transorbs to protect the system from damage in the event

of high voltage surges due to lightening activity.

Mains power is supplied to this PCB via a mains filter which is located adjacent to the PCB.

(ii) T301 load cell scanning PCB, part no.71014-875

This is a microprocessor based PCB with associated RAM, ROM, and EEPROM memory

and software. It is connected to the power supply PCB via a ribbon cable and its function is to

sequentially address the connected load cells to obtain weight values, apply corrections for

dead-load, span, non-linearity and eccentric load conditions and to output a corrected total

load value to the connected indicator. Corrections to the load cell weight values are made in

accordance with factors stored in the EEPROM memory at the time of system calibration.

The EEPROM checksum is validated at power up and the EEPROM contents are hardware

write-protected after calibration.

The scanning PCB also continuously monitors the status of the EEPROM and A-D converters

in each connected T301 load cell and flags potential error conditions to the connected

indicator.

2.8 Having the indicator name “Supaweigh 3000”, “Supaweigh 4000” or

“Supaweigh 5000c" replaced by the name "Avery Berkel Supaweigh", and the manufacturer's

name shown as "Avery Berkel". In this case, for the purposes of Section 6.2, the sealing mark

may be either a mark of Avery Berkel or an official mark of a verification officer.

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2.9 As an alternative to Section 6.3, if the platform and indicator do not carry the

same serial number, then:

(a) the indicator carries a suitable label with the serial number of the platform, or

(b) the platform carries a suitable label with the serial number of the indicator, or

(c) the connections between the indicator and the platform are sealed.

2.10 The Avery 8701 load cell approved under this type approval certificate is

technically compatible and freely interchangeable with the Avery T302 load cell.

Any weighing instrument verified under this approval may incorporate a mix of both the

8701 and T302 load cells.

Load cell Mounting drawing Emax Vmin nmax

Avery T302 70712-136

70714-162

50000,

100000 lb

Emax / 15000 As per

GB-1038

3 TECHNICAL DATA

The Supaweigh digital indicator is fully described in Test Cert. No. GB-1038.

4 PERIPHERAL DEVICES AND INTERFACES

4.1 Peripherals

4.1.1 The weighing system may be connected to any non-intelligent recipient

peripheral which is technically compatible, has, a test certificate issued by a notified body for

EC Type Examination to the directive 2009/23/EC in any member state and which bears the

CE marking of conformity to the relevant directives.

4.1.2 Tally-roll printer and computer linking

The printer may be used as a tally-roll printer when the indicator is connected to a computer

system.

It shall not be possible to initiate a second printout for the same weighing operation, except

where the second ticket is clearly a duplicate of the first ticket, e.g. multi-leaf with different

colours/headings, or marked duplicate. One copy of the ticket shall be retained as a tally

record for a suitable period.

The computer is connected to the indicator via a protected interface listed in Section 4.2.1,

either directly or via a Central Weighing interface controller containing a configurable

RS422/485 interface.

A unique consecutive number is generated by the indicator associated with each weighing,

and is sent to the tally-roll printer and computer with the results of that weighing. "Unique" in

this context means that it shall not be repeated within one year. The consecutive number,

including where relevant the date, is not capable of readily being reset.

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Where a stored weighed tare or "first weight" is used, then the consecutive number of that

weight and the date of weighment must be shown on the relevant documents.

A number of weighing systems may be connected to a common computer, in which case the

unique number identifies the particular weighing system in use.

The same computer may also be used, in place of the printer, for data archiving as described

in Section 4.1.3.

4.1.3 Computer for data archiving

The tally-roll printer of Section 4.1.2 may be replaced by a computer for data archiving.

A unique consecutive number is generated by the indicator associated with each weighing,

and is sent to the computer with the results of that weighing. "Unique" in this context means

that it shall not be repeated within one year. The consecutive number, including where

relevant the date, is not capable of readily being reset.

A number of weighing systems may be connected to a common computer, in which case the

unique number identifies the particular weighing system in use.

The capacity of the data storage device will be suitable for the intending use of the weighing

instrument and shall meet any national requirements of the relevant Member State.

The data storage device shall meet the requirements for security and other requirements

contained in Section 6 of WELMEC Guide 2.5.

4.1.4 Driver operated weighbridge

A computer or other logical device(s) may be connected to the indicator for controlling the

zero setting devices and optional devices used to control the position of vehicles on a

weighbridge for the purpose of providing driver operated weighbridge facilities.

In which case:

(i) A ticket is issued to the driver.

(ii) A weight indicating device is available to the driver.

Adequate instructions are clearly visible to the driver together with a contact point in the

event of problems. Where the weight is below the minimum load or above the maximum

capacity of the instrument, a ticket indicating "Invalid Weight", or equivalent wording, is

issued or printing is inhibited with alternative instructions available to the driver.

Interlocks may be provided so that when a vehicle is not correctly positioned on the

weighbridge no ticket is issued.

If any weight data is passed to the computer then the computer linking will be as described at

Section 4.1.2 above.

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4.1.5 Remote displays

The indicator may be connected to any of the following remote displays via a protected

interface listed in Section 4.2.1:

Model 1054, 5-digit electro-mechanical remote display

Model 1054A LCD remote display

Avery L500 remote display

Avery L505 remote display

4.1.6 Securitag 2000

A Securitag 2000 or SIRIT automatic identification system may be connected to the indicator

via a protected interface listed in Section 4.2.1, either directly or via a Central Weighing

interface controller containing a configurable RS422/485 interface. A transponder, fitted to

the vehicle to be weighed, sends a unique vehicle identification code to the automatic

identification system. The code is then transmitted to the indicator. The code contains only

vehicle identification inforn1ation.

4.1.7 Access 2000

An Access 2000 magnetic stripe / proximity card reader system may be connected to the

indicator via a protected interface listed in Section 4.2.1, either directly or via a Central

Weighing interface controller containing a configurable RS422/485 interface. A card with a

magnetic stripe, or a proximity card, is passed through/across the reader system. The card

contains a unique vehicle identification code which is read by the system and is then

transmitted to the indicator. The code contains only vehicle identification inforn1ation.

4.2 Interfaces

4.2.1 The instrument may be fitted with the following protected interfaces

− 1 x RS-232C

− 2 x 20 mA

− 1 x configurable to RS-232 or 20 mA

− 1 x 8 bit bi-directional expansion port

− 5 x 12 V DC open collector switching outputs

− 2 x 5 V contact closure inputs

− USB 2.0 (5000c only)

− Ethernet (5000c only)

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5 APPROVAL CONDITIONS

The certificate is issued subject to the following conditions:

5.1 Legends and inscriptions

5.1.1 The instrument shall bear the following legends near the display of the

weighing result:

Max

Min

e =

5.1.2 The instrument shall bear the following legends

CE mark

Green M

Accuracy class

Serial number

Manufacturer’s mark or name

Certificate number

5.2 Security

5.2.1 Supaweigh 3000 and 4000

A checksum is generated by the indicator software every time the instrument is calibrated.

The checksum can be displayed on the indicator when the Clock button is pressed 4 times in

quick succession. The checksum will also be printed when a printer is connected. The

checksum is displayed on a tamperproof label which is mounted adjacent to the data plate.

5.2.2 Supaweigh 5000

The Supaweigh 5000c is secured by four screws with a nylon monofilament passing through

one of the screws securing the front cover to the indicating device. The two ends of the

monofilament are joined using a lead seal which will accept stamping. The software is

protected by an 8 digital engineering password.

A checksum is generated by the indicator software every time the instrument is calibrated.

The checksum can be retrieved by requesting the parameters from the instrument using the

Engineering program. This parameter will be read only and cannot be altered using the

Engineering program unless a recalibration is performed. The checksum is displayed on a

tamperproof label which is mounted adjacent to the data plate.

The system will only run with the Central Weighing Limited software designed for use with this

system, as described in section 7. The CWL software is the also only version that has access to the

calibration of the system and the calibration checksum value.

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The software designations and version numbers are shown in the top of the engineering software and

in the Download Manager Tool, and should be as follows:

DLM Configuration Tool Version 05670801.BIN

Engineering CPC program Version 20.2

5.3 The zero-tracking device shall not be disabled and its rate of correction shall be within 0.25 to 0.5 d/s.

6 LOCATION OF SEALS AND VERIFICATION MARKS

6.1 The rating plate is located on the upper face of the indicator. The CE mark

shall be impossible to remove without damaging it. The rating plate shall be impossible to

remove without it being destroyed.

The markings and inscriptions shall fulfil the requirements of Paragraph 1 of Annex IV of the

Directive 2009/23/EC.

6.2 Components that may not be dismantled or adjusted by the user are secured by

either a wire and seal, or by a tamper evident label and securing mark. The securing mark

may be either:

− a mark of the manufacturer and/or manufacturer’s representative, or

− an official mark of a verification officer.

6.3 The platform and indicator will carry the same serial number.

7 ALTERNATIVES

There are currently no alternatives.

8 ILLUSTRATIONS

Figure 1 Supaweigh 3000 indicator – front panel layout

Figure 2 Supaweigh 4000 indicator – front panel layout

Figure 3 Supaweigh 5000c indicator – front panel layout

Figure 4 Schematic diagram of the Supaweigh 5000c

CERTIFICATE HISTORY

ISSUE NO. DATE DESCRIPTION

UK 2477 04 January 1998 Type approval first issued

UK 2477 Revision 1 18 February 2003 Consolidation of Additions 1, 2 and 3.

UK 2477 Revision 2 05 January 2008 Renewal of certificate for a further ten years.

UK 2477 Revision 3 26 November 2010 Supaweigh 5000c indicator added to this

certificate.

Sections 5.1 and 6 modified, section 5.3 added.

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Figure 1 Supaweigh 3000 indicator – front panel layout

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Figure 2 Supaweigh 4000 indicator – front panel layout

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Figure 3 Supaweigh 5000c Control unit (Front & side view)

Ethernet port

Power LED

Cable glands x 3

Used for power,

weighbridge

connection and

peripheral devices

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Figure 4 Schematic diagram of the Supaweigh 5000c

Crown Copyright 2010

NATIONAL WEIGHTS AND MEASURES LABORATORY

Department for Business, Innovation & Skills