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Summary of Contents for Adam Equipment AQT Series
- Page 1 Adam Equipment AQT SERIES SERVICE MANUAL ADAM EQUIPMENT CO. LTD., P.N. 6200, Rev A, September 2004 @Adam Equipment Company 2004...
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Page 2: Table Of Contents
PRINCIPLE OF OPERATION............... 5 GAIN AND ZERO ADJUSTMENT ............6 ERROR MESSAGES................7 TROUBLE SHOOTING GUIDE ............7 10.0 AUTO CALIBRATION................8 10.1 AUTO CALIBRATION (FOR AQT 200 ONLY) ........8 10.2 AUTO CALIBRATION FOR ALL OTHER MODELS......9 @Adam Equipment Company 2004... -
Page 3: Aqt Features
5.7" x 5.7" 3.9" diam. Overall 145 x 210 x 40mm Dimensions 5.7" x 8.3" x 1.6" (w x d x h) without breeze shield Net Weight 1.2 kg, 2.6 lb Features Low battery, Stable and Zero indications @Adam Equipment Company 2004... -
Page 4: Introduction
White (S-) Green (S+) Before any changes are made to the scale, it will be necessary to trouble- shoot the problems and determine the best method to solve the problems. Refer to the Trouble-shooting Guide for suggestions. @Adam Equipment Company 2004... -
Page 5: Removing The Cover
The scale may still zero OK after power is applied but it will not register a weight value for smaller weights. Check the A/D counts in this case. @Adam Equipment Company 2004... -
Page 6: Principle Of Operation
S+ and S- wires when de-soldered from the PCB. The voltage should be less than 2millivolts with no load on the scale, increasing as the load is applied. The voltage between the E+ and E- wires should be 5V. @Adam Equipment Company 2004... -
Page 7: Gain And Zero Adjustment
The resistors used for R49 and R47 should have very low temperature coefficients. Less than 50ppm/ºC is recommended. The changes for gain will affect the zero readings and should be done before the changes to the zero readings. @Adam Equipment Company 2004... -
Page 8: Error Messages
Vibrations through table Temperature changed dramatically Power supply faulty Weight value incorrect Calibration error, Recalibrate Unit calibrated with inaccurate weight Balance not level Obstruction between sample and cover or breeze shield Wrong unit of weight displayed @Adam Equipment Company 2004... -
Page 9: Auto Calibration
1 minute. Enter calibration mode • Press [On/Off] to turn the power off. • Press [Unit] first and then press [On/Off], while keeping the [Unit] key pressed. The display will show the A/D value. @Adam Equipment Company 2004... -
Page 10: Auto Calibration For All Other Models
• Press [On/Off] to turn the power off. Press [On/Off] to turn on the power again, • Place full weight (eg.2000g for AQT2000) on the platform to verify weighing is correct. If not, repeat the calibration procedure. @Adam Equipment Company 2004... - Page 11 @Adam Equipment Company 2004...
- Page 12 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. @Adam Equipment Company 2004...
- Page 13 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.
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