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TABLE OF CONTENTS
Page III © 2007 DH Instruments, a Fluke Company
4. REMOTE OPERATION ....................................................... 73
4.1 OVERVIEW............................................................................................................................................73
4.2 INTERFACING.......................................................................................................................................73
4.2.1 RS232 INTERFACE.....................................................................................................................................73
4.2.1.1 COM1 .......................................................................................................................................................73
4.2.1.2 IEEE-488..................................................................................................................................................74
4.2.1.3 COM2 .......................................................................................................................................................74
4.3 PROGRAMMING FORMATS.................................................................................................................74
4.3.1 CLASSIC PROGRAM MESSAGE FORMAT ..............................................................................................75
4.3.2 ENHANCED PROGRAM MESSAGE FORMAT..........................................................................................75
4.3.2.1 USING COMMAND TYPE COMMANDS .................................................................................................75
4.3.2.2 USING QUERY TYPE COMMANDS...................................................................................................76
4.4 COMMANDS..........................................................................................................................................77
4.4.1 PROGRAMMING MESSAGES....................................................................................................................77
4.4.2 ERROR MESSAGESS.................................................................................................................................78
4.4.3 PROGRAM MESSAGE DESCRIPTION OVERVIEW..................................................................................79
4.4.4 PROGRAM MESSAGE DESCRIPTIONS....................................................................................................80
4.5 STATUS REPORTING SYSTEM...........................................................................................................97
4.5.1 ERROR QUEUE...........................................................................................................................................97
4.5.2 STATUS BYTE REGISTER .........................................................................................................................98
4.5.3 STANDARD EVENT REGISTER.................................................................................................................99
4.5.4 READY STATUS REGISTER ....................................................................................................................100
4.6 IEEE STD. 488.2 COMMON AND STATUS PROGRAM MESSAGES ...............................................101
4.6.1 PROGRAM MESSAGE DESCRIPTIONS..................................................................................................101
5. MAINTENANCE, ADJUSTMENTS AND CALIBRATION ..............105
5.1 OVERVIEW..........................................................................................................................................105
5.2 RPM4 MAINTENANCE........................................................................................................................105
5.2.1 AUTOZERO OF Q-RPTS...........................................................................................................................105
5.2.1.1 GAUGE MODE AUTOZERO..................................................................................................................105
5.2.1.2 ABSOLUTE MODE AUTOZERO ...........................................................................................................106
5.2.2 ADJUSTMENT OF THE ON-BOARD BAROMETER................................................................................106
5.3 RPM4 Q-RPT CALIBRATION..............................................................................................................107
5.3.1 PRINCIPLE ................................................................................................................................................107
5.3.1.1 PA AND PM COEFFICIENTS ................................................................................................................107
5.3.1.2 AS RECEIVED AND AS LEFT DATA ....................................................................................................108
5.3.2 EQUIPMENT REQUIRED ..........................................................................................................................108
5.3.3 SET-UP AND PREPARATION ..................................................................................................................109
5.3.4 RECOMMENDED CALIBRATION POINT SEQUENCE ...........................................................................110
5.3.5 TURNING OFF ABSOLUTE MODE CAPABILITY FOR A Q-RPT ...........................................................110
5.3.6 Q-RPT CALIBRATION USING CALTOOL FOR Q-RPTS SOFTWARE...................................................111
5.3.7 EDITING AND VIEWING Q-RPT CALIBRATION INFORMATION...........................................................111
5.3.8 Q-RPT ADJUSTMENT WITHOUT CALTOOL FOR Q-RPTS SOFTWARE..............................................112
5.4 RPM4 REPAIR.....................................................................................................................................114
5.4.1 REMOVING RPM4 FROM HPMS..............................................................................................................114
5.4.2 OPENING AND CLOSING THE RPM4 ENCLOSURE..............................................................................115
5.4.3 RELOADING EMBEDDED SOFTWARE INTO FLASH MEMORY...........................................................115
5.4.4 SUBASSEMBLY DESCRIPTION AND LOCATION..................................................................................116
5.4.4.1 MICRO BOARD......................................................................................................................................116
5.4.4.2 POWER SUPPLY MODULE ..................................................................................................................117
5.4.4.3 DRIVER BOARD ....................................................................................................................................117
5.4.4.4 ON-BOARD BAROMETER ....................................................................................................................117
5.4.4.5 Q-RPT MODULE....................................................................................................................................117
5.4.4.6 DISPLAY ................................................................................................................................................117
5.4.4.7 COOLING FAN.......................................................................................................................................118
5.4.5 Q-RPT MODULE PNEUMATIC SCHEMATIC...........................................................................................118
5.5 RPM4 ILLUSTRATED PARTS BREAKDOWN ...................................................................................118
5.6 HPMS MAINTENANCE........................................................................................................................124
5.6.1 HPMS OVERHAUL....................................................................................................................................124
5.7 HPMS ILLUSTRATED PARTS BREAKDOWN...................................................................................125