Digi SM-500MK4 Service Manual

COPYRIGHT © 2006 TERAOKA WEIGH-SYSTEM PTE LTD

SERVICE MANUAL

DIGITAL COMPUTING PRINTING SCALE

SM-500MK4

Edition 1

Digi SM-500 MK4 service ManualDigi SM-500 MK4 service ManualDigi SM-500 MK4 service ManualDigi SM-500 MK4 service Manual

1

Table of Content

i) Notice 1

ii) Safety Information ..............................................................................................................................2

1. GENERAL....................................................................................................................................................3

1.1 Model Specification ............................................................................................................................3

1.2 Operating Specification......................................................................................................................4

1.3 Type of Interface ................................................................................................................................4

1.4 Main Components ..............................................................................................................................4

2. OVERVIEW ..................................................................................................................................................5

2.1 Dimension ..........................................................................................................................................5

2.1.1 Pole ......................................................................................................................................5

2.1.2 Touch Screen Pole...............................................................................................................5

2.1.3 Bench ...................................................................................................................................6

2.2 Key sheet Layout ...............................................................................................................................7

2.3 Panel Layout ....................................................................................................................................10

3. SPAN SWITCH ..........................................................................................................................................11

3.1 Span Switch Jumper Setting Changing Procedure..........................................................................11

3.2 Span Switch located in Main Board..................................................................................................11

4. INITIAL SETUP..........................................................................................................................................12

4.1 Scale Assembly ................................................................................................................................12

4.1.1 Display Pole Kit Mounting ...................................................................................................12

4.1.2 Level Adjustment ................................................................................................................12

4.2 Software Setting ...............................................................................................................................12

4.2.1 Memory Initialization ...........................................................................................................12

4.3 Calibration ........................................................................................................................................16

4.4 User Spec Setup Procedure.............................................................................................................17

4.5 Weigh & Measurement Spec Setup Procedure ..............................................................................19

5. HARDWARE TESTING & MAINTENANCE ..............................................................................................21

5.1 Hardware Testing.............................................................................................................................21

5.1.1 RAM Read and Write Test ..................................................................................................21

5.1.2 SIO Loop Back Test............................................................................................................22

5.1.3 RS485 Loop Back Test .......................................................................................................22

5.1.4 Ethernet Loop Back Test ....................................................................................................22

5.1.5 ROM Checksum Test..........................................................................................................23

5.1.6 PLU Generator Test............................................................................................................23

5.1.7 Internal Count......................................................................................................................24

5.1.8 Span Switch Status.............................................................................................................25

5.2 Adjustment........................................................................................................................................25