WBZ SERIES Service Manual

Adam Equipment WBZ SERIES Service Manual rev E1, Software rev.: 2.03 & above ADAM EQUIPMENT CO. LTD. P.N. 9046, Rev. E1, February 2011 Adam Equipment Company 2011

CONTENTS 1.0 INTRODUCTION... 3 2.0 SPECIFICATIONS... 3 2.1 SOFTWARE REVISIONS... 3 3.0 TROUBLESHOOTING... 4 4.0 ERROR CODES... 5 5.0 WBZ DESCRIPTION... 5 6.0 LOAD CELL DAMAGE... 6 7.0 CALIBRATION... 9 7.1 CALIBRATION PROCEDURE... 9 7.2 SECURITY SEALS... 9 7.3 CALIBRATION / PARAMETER COUNTER... 10 8.0 SERVICE PARAMETERS... 12 8.1 USING 0000 TO ENTER THE CALIBRATION PARAMETER... 12 8.2 USING 2006 TO ENTER THE SERVICE PARAMETERS... 13 8.2.1 F1 -CAL... 14 8.2.2 F2 100G... 14 8.2.3 F3 UNIT... 15 8.2.4 F4 -CAPACITY... 15 8.2.5 F5 -UNIT PRICE/TOTAL PRICE DECIMAL POINT LOCATION... 16 8.2.6 F6 -INITIAL ZERO RANGE... 16 8.2.7 F7 -RE-ZERO RANGE... 17 8.2.8 F8 -SUCCESSIVE TARE... 17 8.2.9 F9 -A/D COUNT... 18 8.2.10 F10 ROUNDING OFF THE TOTAL PRICE... 18 8.2.11 F11 ZERO... 19 8.2.12 F12 LOW VOLTAGE DETECTION... 19 8.2.14 F14 AUTO CLEAR... 20 8.2.15 F15 CALIBRATION and PARAMETER COUNTING ENABLED... 20 8.3 SETTING THE SCALE TO USE DEFAULT PARAMETERS... 22 8.4 TESTING WITH X10 FUNCTION... 22 9.0 WIRING DIAGRAM... 23 10.0 MECHANICAL ASSEMBLY... 24 Adam Equipment Company 2011 1

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1.0 INTRODUCTION The WBZ series of digital price-computing scales are EC Type approved. These scales provide an accurate, fast and versatile method of computing price by weight. Stainless steel weighing platform on an ABS plastic base assembly which is sealed to IP 65, making it water-proof Level indicator with adjustable levelling feet Colour coded, sealed keypad Large backlit liquid crystal displays (LCD) on both front and back panels Displays for Weight, Unit Price and Total Price (or Price to Pay) Price per 100g and per kilogram (Not applicable for South Africa and Far East) Price displayed in multiple currency Auto-sleep function Battery operated for portability 50+ hours battery life when fully charged 2.0 SPECIFICATIONS WBZ 3 WBZ 6 WBZ 15 Capacity, Max.= 3 kg 6 kg 15 kg Resolution, d=e= 0.001 kg 0.002 kg 0.005 kg Tare, T= -3 kg -6 kg -9.995 kg Operating Temperature -10ºC to 40ºC Platform 210 x 173 mm Overall 231 x 265 x 153 mm Battery Life 50+ hours typical* Power 12 VDC, 800 ma Power Supply Modulesupplied as standard Net Weight 3.3 kg / 7.26 lb *Battery Life is less when the backlight is used. 2.1 SOFTWARE REVISIONS Software revision is displayed at power on. The scales had a change of LCD effective with revision 2.50 (Europe) and V5.00 (USA) that changed the decimal position mark form a comma to either a comma for Europe or a decimal point for USA. Previous versions of software are not compatible with the LCD that has a split comma/decimal point symbol. The software is otherwise unchanged. Adam Equipment Company 2011 3

3.0 TROUBLESHOOTING PROBLEM Display is blank No turn on test POSSIBLE CAUSE Power Switch faulty or not connected Battery not charged or faulty Power supply faulty or incorrect type - - - - - - appears on display Maximum capacity exceeded Load Cell damaged Electronics is faulty Display is unstable Drafts or air currents Obstruction under pan Sample is moving (animal weighing) Vibrations through table Temperature changed dramatically Electronics faulty or Battery low Weight value incorrect Calibration error, Recalibrate Unit calibrated with inaccurate weight Balance not level Obstruction between sample pan Wrong unit of weight displayed Cannot use Full Capacity Over-load Stops hitting pan support or hitting bottom of load cell Electronics faulty Parameters set incorrectly Load Cell Damaged Not Linear Off Centre Loading error Battery will not charge Overload stops hitting too soon Faulty factory calibration Overload Stops not correct Obstruction under pan Charging circuit failure Battery Failure Incorrect adapter (below 800 ma) Processor failure Adam Equipment Company 2011 4

4.0 ERROR CODES During the initial power-on testing or during operation, the scale may show an error message. If an error message is shown, repeat the step that caused the message. If the error is still shown contact your supplier for support. ERROR DESCRIPTION POSSIBLE CAUSES Err 4 Initial Zero is greater than allowed (typically 4% of the maximum capacity) when power is turned on or when [Tare] is pressed, Weight is on the pan when turning the scale on. Excessive weight on the pan when zeroing scale. Improper calibration of the scale. Damaged load cell. Damaged Electronics. Err 6 A/D count is not correct when turning the scale on. Platform is not installed. Load cell is damaged. Electronics is damaged. 5.0 WBZ DESCRIPTION The WBZ scales have an enclosure with all components mounted within it. To gain access to the components remove the 5 screws securing the cover to the base. The basic unit consists of: Base Load Cell frame Main PCB assembly Battery Display PCB assembly Keypad All models of WBZ scales are similar except the selection of load cells and the program. Normally if a problem is found with a circuit board the most cost effective method of solving the problem is to replace the circuit board. Adam Equipment Company 2011 5

The main PCB assembly includes: A/D converter (AU1), Microprocessor (DU1) and Power supply/battery charger circuits (DU5, T2). 6.0 LOAD CELL DAMAGE The most common reason why a scale fails is that the load cell has been damaged. The damage can be from 2 primary causes. The first is physical damage due to an overload or an impact from the side and the second is damage due to the environment, such as moisture, extreme heat or a cut cable if the cables are exposed. PRINCIPLE OF OPERATION The stain gauge load cell is a method of measuring the amount of stress put onto a metal structure due to a weight being supported by the structure. The stress is measured using 4 strain gauge sensors mounted in a particular way on the metal structure. These 4 strain gauges are connected in such a way that they form a Wheatstone Bridge. See figure below. In the simplest load cells there are only the 4 resistances of the strain gauges to consider. Normally without a load on the load cell all the resistances are the same. However when the load cell has a weight on it 2 of the strain gages will be in compression (A and D) and the resistance will decrease and 2 will be in tension (B and C) and their resistance will increase. +E +E 10 VOLT POWER SUPPLY A 350 ohm 350 ohm B 10 VOLT POWER SUPPLY A 349 ohm 351 ohm B +S -S +S -S C 350 ohm 350 ohm D C 351 ohm 349 ohm D Vout = O VOLTS, Vout = 0.028 VOLTS (28mv), BETWEEN +S AND -s BETWEEN +S AND -s -E -E BALANCED BRIDGE UNBALANCED BRIDGE FULL CAPACITY LOAD ON THE LOAD CELL This will cause the bridge to become unbalanced. When the bridge has a voltage across it from +E to -E then the signal output at +S and -S will show a voltage of zero volts with no load and a small voltage proportional to the load as the load is increased. Typical load cells show 20-30mv of signal if the excitation voltage is 10volts and the load cell is fully loaded. Most load cells used in scales are not as simple as this example. They have additional resistance elements added to compensate for temperature variations and to set the outputs to correct voltages. The circuit of a typical load cell is shown below- Adam Equipment Company 2011 6

A method to check the basic function and integrity of a load cell can be done using a ohmmeter and voltmeter with up to a 10volt power supply. Before the load cell is connected to the power supply use the ohmmeter to measure the resistance between the wires. Typical resistance values are: +E to -E 410 ohms ±30 ohms +S to -S 350 ohms ± 2 ohms +E to +S or any other combination similar approximately 270 ohms. If the load cell has Sense connections in addition they are connected to the excitation internal to the load cell. Connect the load cell +E and -E to a power supply, typically 10 volts. Never use more than 12 volts as it may damage the load cell. Measure the voltage between +S and -S. With no load the voltage should be approximate 0mv ±3mv. With a mass on the load cell the output voltage should increase. The amount by which it increases will be dependent upon the sensitivity of the load cell, capacity of the load cell, the excitation voltage and the amount of mass placed on the load cell. Most load cells have a sensitivity of either 2mv/V or 3mv/V. The expected change to the output is: Vout = (2mv/V) * Vext * Mass capacity of load cell For example a 2mv/V load cell of 30Kg capacity with 20Kg placed on it. Vext is 5 volts would give a output of approximately: Adam Equipment Company 2011 7

Vout = (2mv/V) * Vext * Mass capacity of load cell = 2mv/V * 5V * 20Kg = 6.7mv 30kg If the load cell has been damaged the no load voltage will likely be greater than 3mv or the loaded voltage will be grossly different from the expected value. Remember the loaded voltage will be offset by the amount of zero load voltage measured. The load cell can be tested while it is connected to the A/D, using the scale power supply for excitation voltage. Adam Equipment Company 2011 8

7.0 CALIBRATION 7.1 CALIBRATION PROCEDURE The scales have methods to either prevent or control unauthorised calibration. If the Calibration Counters are enabled the scales can be calibrated without breaking the seals, however the counters will be incremented to identify a calibration or change in parameters. If the scales do not have the counters enabled then access is controlled by breaking the seals on the scale to gain access to the circuit boards inside. See the figures on the security seal as given below. WARNING: BREAKING OF THE SEALS MAY MAKE IT ILLEGAL TO USE THE SCALES FOR SALES OF GOODS. CONTACT YOUR TRADING STANDARDS OFFICE FOR FURTHER ASSISTANCE. 7.2 SECURITY SEALS Method of sealing The scale has got metallic loops on the base and the cover, located at the right rear corner as shown here. A metal pin or wire can be passed through the loops and sealed using a lead-wire seal. Ensure the seal is secured enough to prevent removing the cover without breaking the seal or damaging the enclosure. Alternative method An alternative method would be to use tamper-evident labels over the screw on the bottom cover and over the joint between the top and the bottom cover as shown in the adjacent figure. Metrology labels and additional security measures may be added to the scale as required by the national legislation. NOTE: IF THIS SEAL IS BROKEN THE SCALE MUST BE RE-SEALED BY THE RELEVANT AUTHORITIES USING EITHER THE LEAD WIRE SEAL OR AN ACCEPTABLE SEAL BETWEEN THE COVER AND THE BASE. Adam Equipment Company 2011 9

7.3 CALIBRATION / PARAMETER COUNTER With approved scales we have the ability to control access to the calibration or metrology parameters using a passcode to limit access. The requirements for doing this stipulate the code should be apparent and recorded in a suitable location on the scale. In this way if the record of the Calibration or Parameter counters do not agree with recoded settings the responsible person inspecting the scale can take appropriate action. The Counters are incremented any time the calibration section or the Factory parameters section have been entered and changes made. At power on, the display will show the current software revision number followed by the message of the Calibration Count [AL[nt then 123. The number from the counter memory. Then the Parameter Counter message of PAr[nt and 234. The counters cannot be reset to 0, they will increment until the display can no longer hold the values. (1 to 999999). It is expected we will never have more than 1 million calibrations in the life of the machine. Each display is held for 1-2 seconds. The scale will then continue to do the display test and go to normal weighing. If during the time the counting displays are shown, the user presses the [Tare] key, the user will be given a message to enter the passcode necessary, P - - - - Enter the code P0000 to Enter calibration or P1000 to enter the parameters. The Calibration access will allow user calibration (See section 8.1) and the parameter code will allow access to the following parameters. (see section 8.2). Adam Equipment Company 2011 10

F2 100g Enable price per 100g or per kg option F5 Point Unit Price/Price decimal point F6 init ZEro Initial Zero Range F7 re ZEro Re-Zero range F8 SCSivE tare Successive Tare Enable F9 Ad Count Display the A/D counts F10 round Rounding off the Total Price F11 ZEro Select the zero mode F12 Lvd mod Low voltage detection F13 CAL batt Set calibration of battery voltage measurements F14 ACLr Enable or Disable Auto Clear F15 CAL Cnt Enable or disable the calibration counters Other parameters must be changed using the service parameters as described in section 8.2 After calibration or changing of any parameters the value of the counters is required to be visible on the scale marked in a permanent manner. Adam Equipment supplies a label for this purpose, to be placed near the verification marks on the side of the scale. Any time these values change the scale is required to be retested by the appropriate authorities in the users location. Adam Equipment Company 2011 11

8.0 SERVICE PARAMETERS After the jumper has been placed at J1 on pins 1 &2, apply power to the scale or use the Calibration Count method as described in section 7.3 to access the passcode display if the Counting method has been enabled. The display will ask for a code number, P - - - -. Enter the number 1000 or 2006. To enter the digits, using the number keys. Press the [Tare] key to accept the value The display will show the first parameter allowed depending upon the passcode entered, code 1000 only allows access to a limited number of parameters, see section 7.3. If code 2006 was entered the first parameter is: F1 CAL. To scroll through other parameters press the [0] key. The display will show the parameter number then the word describing the function. Press the [Tare] key to enter a parameter. Press the [Zero] key to exit a parameter. Pressing [Zero] again will display JP on if a jumper was used to gain access. Remove the jumper. The scale will return to normal weighing. 8.1 USING 0000 TO ENTER THE CALIBRATION PARAMETER After the jumper has been placed at J1 on pins 1 &2, apply power to the scale or use the Calibration Count method as described in section 7.3 to access the passcode display if the Counting method has been enabled. Pn When Pn is displayed, enter 0 0 0 0 and press [Tare]. UnLoAd LoAd 6 KiLoS SPAn PASS Empty the pan by removing the load, if there is any and press [Tare]. Load the requested calibration weight and when stable press [Tare]. If Calibration is complete, SPAn PASS will be displayed. Remove the calibration weight. Adam Equipment Company 2011 12

Or, SPAn FAiL JP On This means calibration has failed. Remove the calibration weight and repeat the process. This is shown only if a jumper was used to gain access. Switch off the scale. Remove the jumper. Switch on the scale for normal weighing. 8.2 USING 2006 TO ENTER THE SERVICE PARAMETERS After the jumper has been placed at J1 on pins 1 &2, apply power to the scale or use the Calibration Count method as described in section 7.3 to access the passcode display if the Counting method has been enabled. Display will ask for a code number, Pn on the Unit Price window. Enter the number 2006 when Pn is displayed and then press [Tare]. The displays will show the first parameters, called F1 CAL. To select another parameter press the [0] key to advance through the parameters. Press the [Tare] key to enter a parameter. To exit a parameter, press the [ Z ] key. The Weight Display window will show the parameter number and the Unit Price window will show the word describing the function. When a parameter is entered by pressing the [Tare] key, the displays will guide you through the parameter selected and the options available. The parameters available are: F1 CAL To enter the Calibration F2 100g Enable price per 100g or per kg option F3 Unit Select kilograms or pounds F4 CAPA Select capacity F5 Point Unit Price/Price decimal point Adam Equipment Company 2011 13

F6 init ZEro Initial Zero Range F7 re ZEro Re-Zero range F8 SCSivE tare Successive Tare Enable F9 Ad Count Display the A/D counts F10 round Rounding off the Total Price F11 ZEro Select the zero mode F12 Lvd mod Low voltage detection F13 CAL batt Set calibration of battery voltage measurements F14 ACLr Enable or Disable the Auto Clear function F15 Cal Cnt Enable or disable the Calibration Counting function 8.2.1 F1 -CAL To advance to the next parameter, press the [0] key or to enter the calibration parameter press the [Tare] key when F1 CAL is displayed. The display will instruct you to remove any weight from the scale, UnLoAd. Press [Tare]. The display will tell you to add weight to the scale: LoAd 6 kilos Add the weight shown, wait for stability then press the [Tare] key. The display will show SPAn PASS if the calibration is OK. Or it will show SPAn FAIL if calibration could not be completed correctly. The display will then show JP on indicating the jumper is still in place if it was used to gain access. Remove the weight. Switch off the scale and switch it on to continue with the other Service parameters. 8.2.2 F2 100G To enter this parameter, press the [Tare] key when F2 100G is shown. The display will show PriCE on or PriCE off. Adam Equipment Company 2011 14

PriCE on User will not be allowed to change the price per 100g to kg (or 0.1 lb to pounds if pound is selected in F3). PriCE off. User will be allowed to change the price per 100g to kg (or 0.1 lb to pounds if pound is selected in F3). Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. 8.2.3 F3 UNIT Select either kilograms or pounds weighing units. To enter this parameter, press the [Tare] key when F3 is shown. The display will show the current unit, either kilograms or pounds. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. 8.2.4 F4 -CAPACITY To enter this parameter, press the [Tare] key when F4 is shown. The display will show the current capacity: 3, 6 or 15 kilograms. Press the [0] key to change the value. Press [Tare] to accept the displayed value. Adam Equipment Company 2011 15

NOTE: The scale must be originally built for the capacity selected. The 3kg unit uses the 5kg load cells, 6 kg unit uses 10kg load cells, the 15 kg unit uses 20 kg load cells. 8.2.5 F5 -UNIT PRICE/TOTAL PRICE DECIMAL POINT LOCATION To enter this parameter, press the [Zero/Tare] key when F5 is shown. The display will show the current decimal point location in the Unit Price and the Total Price windows. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE: The units must match the currency used in the country. Normally 0.00 is shown. 8.2.6 F6 -INITIAL ZERO RANGE To enter this parameter, press the [Tare] key when F6 is shown. The display will show the current initial zero range. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE: Only 10% is allowed for the WBZ scales. Adam Equipment Company 2011 16

8.2.7 F7 -RE-ZERO RANGE To enter this parameter, press the [Tare] key when F7 is shown. The display will show the current re-zero range. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE: Only 2% is allowed for the WBZ scales. 8.2.8 F8 -SUCCESSIVE TARE To enter this parameter, press the [Tare] key when F8 is shown. The display will show if the successive tare is on or off. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE: Either option is allowed for the WBZ scales, use On for default. Adam Equipment Company 2011 17

8.2.9 F9 -A/D COUNT To enter this parameter, press the [Tare] key when F9 is shown. This parameter allows you to view the A/D counts from the internal A/D converter. This can be an aid to service. Press the [0] key to advance to the next parameter. 8.2.10 F10 ROUNDING OFF THE TOTAL PRICE This parameter allows you to set the value to 1 or 5 for rounding off the least significant digit of the Total Price. For example, if the value is set to 1, the Total Price will remain as 12.47 for the original value of 12.47 and if it is set to 5, the Total Price will be rounded off to 12.45 instead of 12.47. To enter this parameter, press the [Tare] key when F10 is shown. The display will show the current settings. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. Adam Equipment Company 2011 18

8.2.11 F11 ZERO This parameter allows the normal method of setting zero or a slightly different method required for Sri Lanka to be used. To enter this parameter, press the [Tare] key when F11 is shown. The display will show the current settings, mode 1 or mode 2. mode 1 is to be selected at all times unless the scale is intended for Sri Lanka. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. 8.2.12 F12 LOW VOLTAGE DETECTION This parameter allows detection of low voltage when the battery wears down. To enter this parameter, press the [Tare] key when F12 is shown. The display will show if the LVD Mode is set to on or off. Press the [0] key to change the value. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE: Only the on option is allowed for the WBZ scales. Set to off only for testing or to allow operation before the battery voltage calibration is completed. Adam Equipment Company 2011 19

8.2.14 F14 AUTO CLEAR This parameter enables or disables the auto-clear function. To enter this parameter, press the [Z/T] key when F14 is shown. The display will show if the function is set to on or off. Press the [0] key to change the setting. Press [Z/T] to accept the displayed value and return to the parameter. Press the [0] key to advance to the next parameter. NOTE 1: Only the off option is allowed for the scales to be used in South Africa. This will disable the Auto Clear function on the [3] key and the auto-clear function will be permanently on. 8.2.15 F15 CALIBRATION and PARAMETER COUNTING ENABLED This parameter allows the scale to show the stored values for the number of times the scale has been calibrated or parameters set. The Counting function is either set to On or Off. If on the user has access to calibration and parameter setting without the need to open the scale. See section 7.3. If set to Off the scale will not show the counter values and the only way the user can access them is to use the jumper on the PCB as described in section 8.1. To enter this parameter, press the [Tare] key when F15 is shown. The display will show if the function is set to on or off. Press the [0] key to change the setting. Press [Tare] to accept the displayed value and return to the parameter. Press the [0] key to advance to the first parameter. To return to normal weighing, switch off the scale, remove the jumper and switch it on. Adam Equipment Company 2011 20

NOTE : AFTER SETTING PARAMETERS OR PERFORMING CALIBRATION TO SECURE THE SCALE, IT IS NECESSARY TO REMOVE THE JUMPER AND RE- SEAL THE SCALE. OR UPDATE THE LABEL SHOWING THE CALIBRATION/PARAMETER COUNT Adam Equipment Company 2011 21

8.3 SETTING THE SCALE TO USE DEFAULT PARAMETERS The scale can be set to clear the memory and use default parameters if necessary. This should only be required if the processor is changed or a major problem happens. To set the default values place a jumper at location JTAG 9-10. Hold the [Tare] key down and turn on the scale. The display will show DEFAL. If you want to set the defaults press the [Tare] key, If not turn the scale off. 8.4 TESTING WITH X10 FUNCTION During normal operation press and hold the [Zero] key and the scale will change to show the weight only with increased resolution. All other normal functions of the scale except tare and zero will be disabled. Pressing the [Zero] key again for more than 3 seconds will bring the display back to the normal resolution. Adam Equipment Company 2011 22

9.0 WIRING DIAGRAM Adam Equipment Company 2011 23

10.0 MECHANICAL ASSEMBLY Adam Equipment Company 2011 24

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WARRANTY INFORMATION Adam Equipment offers Limited Warranty (Parts and Labour) for the components failed due to defects in materials or workmanship. Warranty starts from the date of delivery. During the warranty period, should any repairs be necessary, the purchaser must inform its supplier or Adam Equipment Company. The company or its authorised Technician reserves the right to repair or replace the components at any of its workshops depending on the severity of the problems. However, any freight involved in sending the faulty units or parts to the service centre should be borne by the purchaser. The warranty will cease to operate if the equipment is not returned in the original packaging and with correct documentation for a claim to be processed. All claims are at the sole discretion of Adam Equipment. This warranty does not cover equipment where defects or poor performance is due to misuse, accidental damage, exposure to radioactive or corrosive materials, negligence, faulty installation, unauthorised modifications or attempted repair or failure to observe the requirements and recommendations as given in this User Manual. Additionally rechargeable batteries (where supplied) are not covered under warranty. Repairs carried out under the warranty does not extend the warranty period. Components removed during the warranty repairs become the company property. The statutory right of the purchaser is not affected by this warranty. The terms of this warranty is governed by the UK law. For complete details on Warranty Information, see the terms and conditions of sale available on our web-site. Adam Equipment Company 2011 26

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Manufacturer s Declaration of Conformity This product has been manufactured in accordance with the harmonised European standards, following the provisions of the below stated directives: Non-Automatic Weighing Equipment Directive 90/384/EEC Electro Magnetic Compatibility Directive 2004/108/EC Low Voltage Directive 2006/95/EC Adam Equipment Co. Ltd. Bond Avenue, Denbigh East Milton Keynes, MK1 1SW United Kingdom FCC COMPLIANCE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. The equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Shielded interconnect cables must be employed with this equipment to insure compliance with the pertinent RF emission limits governing this device. Changes or modifications not expressly approved by Adam Equipment could void the user's authority to operate the equipment. WEEE COMPLIANCE Any Electrical or Electronic Equipment (EEE) component or assembly of parts intended to be incorporated into EEE devices as defined by European Directive 2002/95/EEC must be recycled or disposed using techniques that do not introduce hazardous substances harmful to our health or the environment as listed in Directive 2002/95/EC or amending legislation. Battery disposal in Landfill Sites is more regulated since July 2002 by regulation 9 of the Landfill (England and Wales) Regulations 2002 and Hazardous Waste Regulations 2005. Battery recycling has become topical and the Waste Electrical and Electronic Equipment (WEEE) Regulations are set to impose targets for recycling. Adam Equipment Company 2011

ADAM EQUIPMENT is an ISO 9001:2000 certified global company with more than 35 years experience in the production and sale of electronic weighing equipment. Adam products are predominantly designed for the Laboratory, Educational, Medical, retail and Industrial Segments. The product range can be described as follows: -Analytical and Precision Balances -Compact and Portable Balances -High Capacity Balances -Moisture analysers / balances -Mechanical Scales -Counting Scales -Digital Weighing/Check-weighing Scales -High performance Platform Scales -Crane scales -Medical Scales -Retail Scales for Price computing For a complete listing of all Adam products visit our website at www.adamequipment.com Copyright by Adam Equipment Co. Ltd. All rights reserved. No part of this publication may be reprinted or translated in any form or by any means without the prior permission of Adam Equipment. Adam Equipment reserves the right to make changes to the technology, features, specifications and design of the equipment without notice. All information contained within this publication is to the best of our knowledge timely, complete and accurate when issued. However, we are not responsible for misinterpretations which may result from the reading of this material. The latest version of this publication can be found on our Website. www.adamequipment.com Adam Equipment Company 2011