Summary of Contents for Adam CFW Series
- Page 1 Adam Equipment CFW SERIES SERVICE MANUAL ADAM EQUIPMENT CO. LTD. P.N. 7953, Rev. A2, February 2007 @Adam Equipment Company 2007...
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Page 3: Table Of Contents
INTRODUCTION ..................... 4 TROUBLE SHOOTING GUIDE ............... 5 ERROR CODES ....................6 CFW DESCRIPTION ..................7 CFW USER PARAMETERS ................8 CFW USER CALIBRATION................11 FACTORY PROGRAMMING AND CALIBRATION.........12 LOAD CELL DAMAGE..................14 REPLACEMENT PARTS AND ACCESSORIES..........17 10.0 SCHEMATICS ....................18 @Adam Equipment Company 2007... -
Page 4: Introduction
INTRODUCTION The CFW series of scales are general purpose weighing scales. Refer to the Operators Manuals for details of the general operation. This manual will cover details of calibration and troubleshooting. If you have a problem with the scales that is not directly addressed by this manual then contact your dealer or Adam Equipment for more assistance. -
Page 5: Trouble Shooting Guide
Not Linear Overload stops hitting too soon Faulty Factory Calibration Off Centre Loading error Overload Stops not correct Obstruction under pan Battery will not charge Charging circuit failure Battery failure Incorrect adapter (below 800 mA) Processor failure @Adam Equipment Company 2007... -
Page 6: Error Codes
DESCRIPTION SUGGESTIONS CODES - -oL - - Over-range Remove weight from the scale. If the problem persists contact your dealer or Adam Equipment for assistance. Err 1 Date Setting Error Enter date using correct format and reasonable values. Format: yy:mm:dd... -
Page 7: Cfw Description
The main PCB assembly includes: Sections for load cell input filter A/D converter (AU1), Microprocessor and support circuits (U1, U4) Power supply / battery charger circuits (U5, T2) @Adam Equipment Company 2007... -
Page 8: Cfw User Parameters
“SEt Lo” or “SEt Hi”. Press [Print/Esc] to return to “FO H-L”. Advance to the next parameter (F1 toL) by pressing [Tare/ ] if needed or press [Print/Esc] to return to weighing. @Adam Equipment Company 2007... - Page 9 Enter the new time, format is hh.mm.ss F4 oFF CLoCK CLK oF Sets clock to OFF or ON as screen saver. CLK oF CLK on EL Au Sets the backlight to be on, automatic or EL on EL Au EL oFF @Adam Equipment Company 2007...
- Page 10 7 data bits, even parity o 7 1 -7 data bits, odd parity ProG See the SERVICE SECTION for details. • Use the [Print/Esc] key to leave the set-up mode of the parameter and return to weighing. @Adam Equipment Company 2007...
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Page 11: Cfw User Calibration
If the calibration is acceptable the scale will run a self-test during which the calibration weight should be removed. If an error message “FAiL L” is shown try calibration again as a disturbance may have prevented a successful calibration. @Adam Equipment Company 2007... -
Page 12: Factory Programming And Calibration
SETTING OF SERVICE PARAMETERS SUB- FUNCTIONS DESCRIPTION DEFAULT PARAMETER SETTING P1 rEF AZn 0 Auto Zero operating range. (Options: 0.5d, 1.0d, 2d, 4d) Sets the operational range of the auto zero function. @Adam Equipment Company 2007... - Page 13 Starts the calibration procedure. See the details of calibration procedure in section 10. The sub-parameter “P3 Pro” is used to view the calibration constant used by the scale, view the A/D counts and set the scale back to default @Adam Equipment Company 2007...
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Page 14: Load Cell Damage
These 4 strain gages 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 gages to consider. Normally @Adam Equipment Company 2007... - Page 15 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 2007...
- Page 16 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 it increases will be dependent upon the sensitivity of the load @Adam Equipment Company 2007...
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Page 17: Replacement Parts And Accessories
9.0 REPLACEMENT PARTS AND ACCESSORIES If you need to order any spare parts and accessories, contact your supplier or Adam Equipment. A partial list of such items is as follows- • •... -
Page 18: Schematics
38x660 screw M4x6 cable clamp load cell lower bracket level bubble 14.7mm internal hexagon screw S18C M8x20 "-" screw S18C M6x8 internal hexagon screw S18C M6x20 spring washer S18C 10x6.5 Base to pole bracket washer SPCC @Adam Equipment Company 2007... - Page 19 Base to pole bracket cover "+" screw M6x8 foot @Adam Equipment Company 2007...
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Page 20: Warranty Information
WARRANTY INFORMATION Adam Equipment offers one year 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. - Page 21 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...
- Page 22 © 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.