CAS ED - Default Chapter; Table of Contents

ED Service Manual
2 04/12/10
< Table of Contents >
1. Introduction ............................................................................................................................... 4
1.1. Preface .................................................................................................................................... 4
1.2. Precaution ............................................................................................................................. 4
1.3. Specification ........................................................................................................................ 5
1.4. Sealing Method ................................................................................................................... 7
2. Calibration ................................................................................................................................... 9
2.1. General Calibration .......................................................................................................... 9
2.1.1. C4 Setting ........................................................................................................... 10
2.1.1.1. C4-1 Setting ................................................................. 10
2.1.1.2. C4-2 Setting ................................................................. 10
2.1.1.3. C4-3 Setting ................................................................. 10
2.1.1.4. C4-4 Setting ................................................................. 11
2.1.1.5. C4-5 Setting ................................................................. 11
2.1.2. SPAN Calibration Setting (C-3) .............................................................. 12
2.1.3. Gravity Constant Value Setting (C-9) ................................................ 12
2.1.4. Calibration factor Setting (C-10) .......................................................... 13
2.1.5. Displaying Real A/D Value (C-5) .......................................................... 13
2.1.6. Percent Calibration (C-7) .......................................................................... 14
2.1.7. Battery Calibration (C-8) ........................................................................... 14
3. The Schematics and Diagram ......................................................................................... 15
3.1. System Block Diagram ................................................................................................. 15
3.2. Circuit Diagram ................................................................................................................ 16
3.2.1. MAIN ...................................................................................................................... 16
3.2.2. DISPLAY & MODULE ................................................................................................. 17
4. Exploded View ......................................................................................................................... 18
5. Load Cell drawing .................................................................................................................. 19
6. Part Location ............................................................................................................................ 20
Main PCB Part Location ................................................................. 20
COMMON PCB. .......................................................................................................................... 22
RS-232 MODULE PCB Part Location ............................................... 22
RS-232 PCB (TOP) ................................................................................................................. 22
RS-232 PCB (BOTTOM) ....................................................................................................... 22
KEY PCB Part Location .................................................................. 23
KEY PCB ......................................................................................................................................... 23
7. Error Messages & Solution............................................................................................... 24