Fluke A20M-AF, A70M, HPMS 3.3.3 [MODE] , 3.3.4 [AUTORANGE]

3. OPERATION

Page 27 © 2007 DH Instruments, a Fluke Company

3.3.3 [MODE]

 PURPOSE

To set the measurement mode (absolute, gauge) for the active range.

To select the unit of measure, use [UNIT] (see Section 3.3.2).

 PRINCIPLE

RPM4 A70M/A20M-AF supports simple, one-step switching between two measurement

modes:

Absolute Measures pressure relative to vacuum (zero is hard vacuum). Range is

from zero absolute to full scale.

Gauge Measures pressure relative to atmosphere (zero is ambient pressure).

Range is from zero gauge to full scale, full scale must be greater than zero.

The RPM4 A70M/A20M-AF Q-RPTs measure pressure relative to a sealed vacuum reference

and are intrinsically absolute. Gauge mode is accomplished by offsetting of atmospheric

pressure with dynamic compensation for atmospheric pressure changes between offsets

using an on-board barometer (see Section 3.2.2). Access to absolute operation can be

turned OFF (see Section 5.3.5).

When changing modes for a range, if the full scale of the range is 100 psi (700 kPa) or greater,

the full scale is the same in both absolute and gauge modes. If the full scale is less than 100 psi,

the gauge mode full scale is 14.5 psi (100 kPa) lower than the absolute mode full scale.

Measurement mode selection is range specific.

 OPERATION

To change the active measurement mode for a range,

press [MODE] from the MAIN RUN screen while the

range is active. The display is:

Measurement mode:

1absolute 2gauge

Select the desired measurement mode and operation returns to the main run screen with the

selected measurement mode active. If absolute measurement mode has been turned OFF in

calibration (see Section 5.3.5), absolute mode is not available.

Certain RPM4 settings, including AutoZ ON/OFF (see Section 3.5.1) are range AND

measurement mode specific. See Table 2 for a listing of settings and what they are specific to.

Absolute mode capability can be turned OFF in the calibration function (see Section 5.3.5).

When absolute mode is turned OFF, only gauge mode can be activated. <Gauge mode only, other

modes OFF> is displayed when [MODE] is pressed.

3.3.4 [AUTORANGE]

 PURPOSE

To automatically set up RPM4 to optimize its measurement characteristics and features for a

specific, user defined pressure range of operation.

Contents

Main Page T O E AB O Page Page Page T S AB F S RE UR GU A T M Page 1 I . 1. I 1.2 SPECIFICATIONS 1.2.1 GENERAL SPECIFICATIONS 1.2.2 PRESSURE MEASUREMENT SPECIFICATIONS 1.2.2.1 QUARTZ REFERENCE PRESSURE TRANSDUCERS (Q-RPT) 1.2.2.2 ON-BOARD BAROMETER Page Page 2.1.2 INSPECTING CONTENTS 2.2 PGC-10000-AF SYSTEM 2.3 SITE REQUIREMENTS 2.4 SETUP 2.4.1 PREPARING FOR OPERATION 2.4.2 RPM4/HPMS FRONT, REAR AND SIDE VIEWS 2.4.2.1 RPM4/HPMS FRONT VIEW 2.4.2.2 RPM4/HPMS REAR VIEW RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL 2.4.2.3 RPM4/HPMS SIDE VIEW Figure 5. RPM4 front panel Figure 4. RPM4/HPMS side view 2.4.3 RPM4 FRONT AND REAR PANELS 2.4.3.1 RPM4 FRONT PANEL 2.4.3.2 RPM4 REAR PANEL 2.4.4 POWER CONNECTION 2.4.5 FOOTSWITCH CONNECTION 2.4.6 TEST PORT CONNECTION 2.4.6.1 THE ATM PORTS OF RPM4 2.4.7 CHECK/SET SECURITY LEVEL 2.4.8 SETTING UP AUTOTEST FILES 2.5 POWER-UP AND VERIFICATION 2.5.1 SWITCH POWER ON 2.5.2 CHECK PRESSURE MEASUREMENT OPERATION 2.5.2.1 CHECKING ABSOLUTE MODE PRESSURE MEASUREMENT 2.5.2.2 CHECKING GAUGE MODE PRESSURE MEASUREMENT Page Page RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL PRESSURE1UNITM hzRR DDISPLAYFUCNIONnn/nn Figure 7. MAIN RUN screen display fields 3.1.2 FUNCTION / DATA KEYPAD LAYOUT AND PROTOCOL 3.1.3 REMOTE [ENT] (ENTER) FOOTSWITCH 3.1.4 SOUNDS 3.2 GENERAL OPERATING PRINCIPLES 3.2.1 PRESSURE READY/NOT READY 3.2.2 GAUGE MODE, DYNAMIC COMPENSATION FOR ATMOSPHERIC PRESSURE 3.2.3 MULTIPE RANGES (Q-RPTS, AUTORANGE AND INFINITE RANGING) 3.2.4 AUTOMATED TEST AND CALIBRATION SEQUENCES 3.2.5 HPMS (HIGH PRESSURE MOUNTING SYSTEM) Page Page 3. OPERATION Figure 10. HPMS pneumatic schematic 3.2.6 DIRECT FUNCTION KEYS SUMMARY 3.3 DIRECT FUNCTION KEYS 3.3.1 [RANGE] Page 3.3.2 [UNIT] 3.3.3 [MODE] 3.3.4 [AUTORANGE] RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL Table 4. Settings made by AutoRange 3.3.5 [LEAK CK] Page 3.3.6 [DISPLAY] 3.3.6.1 AVG (AVERAGE) 3.3.6.2 Rate 3.3.6.3 Dev (Deviation) 3.3.6.4 RPT 3.3.6.5 Hi/Lo 3.3.6.6 Freeze 3.3.6.7 Clean 3.3.7 [HEAD] 3.3.8 [SDS] 3.3.9 [AUTOZ] 3.3.9.1 [AUTOZ] IN GAUGE MODE Page Page Page 3.3.10 [ENT] (RUN AUTOTEST) 3.3.10.1 AUTOTEST INITIALIZATION 3.3.10.2 TEST EXECUTION Page 3.4 [SETUP] 3.4.1 <1RANGE> 3.4.1.1 SAVING AN AUTORANGE RANGE 3.4.1.2 DELETING AUTORANGE RANGES 3.4.2 <2RES> (RESOLUTION) 3.4.3 <3STAB> 3.4.4 <4UL> (UPPER LIMIT) 3.4.4.1 OVER PRESSURE FUNCTION 3.4.5 <5ATEST> 3.4.5.1 DATA 3.4.5.2 FILE Page 3.5 [SPECIAL] 3.5.1 <1AUTOZ> Page Page 3.5.1.1 EDIT AUTOZ 3.5.2 <2REMOTE> 3.5.2.1 <1COM1, 2COM2> 3.5.2.2 <3IEEE-488> 3.5.2.3 <4FORMAT> 3.5.2.4 <5RS232 SELF-TEST> 3.5.3 <3HEAD> 3.5.4 <4SDS> 3.5.5 <5PREFS> 3.5.5.1 <1SCRSVR> 3.5.5.2 <2SOUND> 3.5.5.3 <3TIME> 3.5.5.4 <4ID> 3.5.5.5 <5LEVEL> (SECURITY) Page Page 3.5.7 <7INTERNAL> 3.5.7.1 <1BARO> 3.5.7.2 <2READRT> 3.5.7.3 <3RPT2X> 3.5.7.4 <4LO VNT> 3.5.7.5 <5LOG> 3.5.8 <8CAL> 3.5.9 <9RESET> 3.5.9.1 <1SETS> 3.5.9.2 <2 UNITS> 3.5.9.3 <3ATEST> 3.5.9.4 <4 CAL> 3.5.9.5 <5 ALL> Page 4 R . 4. R 4.3 PROGRAMMING FORMATS 4.3.1 CLASSIC PROGRAM MESSAGE FORMAT 4.3.2 ENHANCED PROGRAM MESSAGE FORMAT 4.3.2.1 USING COMMAND TYPE COMMANDS 4.3.2.2 USING QUERY TYPE COMMANDS 4. REMOTE OPERATION 4.4 COMMANDS 4.4.1 PROGRAMMING MESSAGES Table 14. Program message list RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL 4.4.2 ERROR MESSAGESS Table 15. Error #s and descriptions 4.4.3 PROGRAM MESSAGE DESCRIPTION OVERVIEW Each program message description is separated into the following sections: 4.4.4 PROGRAM MESSAGE DESCRIPTIONS Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 4.5 STATUS REPORTING SYSTEM 4.5.1 ERROR QUEUE 4.5.2 STATUS BYTE REGISTER 4.5.3 STANDARD EVENT REGISTER 4.5.4 READY STATUS REGISTER 4. REMOTE OPERATION 4.6 IEEE STD. 488.2 COMMON AND STATUS PROGRAM MESSAGES Table 19. Program message list 4.6.1 PROGRAM MESSAGE DESCRIPTIONS Page Page Page 5 M C . 5. 5.2.2 ADJUSTMENT OF THE ON-BOARD BAROMETER 5.3 RPM4 Q-RPT CALIBRATION 5.3.1 PRINCIPLE 5.3.1.1 PA AND PM COEFFICIENTS 5.3.1.2 AS RECEIVED AND AS LEFT DATA 5.3.2 EQUIPMENT REQUIRED 5.3.3 SET-UP AND PREPARATION 5.3.4 RECOMMENDED CALIBRATION POINT SEQUENCE 5.3.5 TURNING OFF ABSOLUTE MODE CAPABILITY FOR A Q-RPT 5.3.6 Q-RPT CALIBRATION USING CALTOOL FOR Q-RPTS SOFTWARE 5.3.7 EDITING AND VIEWING Q-RPT CALIBRATION INFORMATION 5.3.8 Q-RPT ADJUSTMENT WITHOUT CALTOOL FOR Q-RPTS SOFTWARE Page 5.4 RPM4 REPAIR 5.4.1 REMOVING RPM4 FROM HPMS 5.4.2 OPENING AND CLOSING THE RPM4 ENCLOSURE 5.4.3 RELOADING EMBEDDED SOFTWARE INTO FLASH MEMORY 5.4.4 SUBASSEMBLY DESCRIPTION AND LOCATION 5.4.4.1 MICRO BOARD 5.4.4.2 POWER SUPPLY MODULE 5.4.4.3 DRIVER BOARD 5.4.4.4 ON-BOARD BAROMETER 5.4.4.5 Q-RPT MODULE 5.4.4.6 DISPLAY 5.5 RPM4 ILLUSTRATED PARTS BREAKDOWN Page Page Page RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL Table 25. RPM4 Illustrated Parts Breakdown of Internal Assembly (see Figure 19) Figure 19. RPM4 Illustrated Parts Breakdown of Internal Assembly Page 5.6 HPMS MAINTENANCE 5.6.1 HPMS OVERHAUL 5. MAINTENANCE, ADJUSTMENTS AND CALIBRATIONS 5.7 HPMS ILLUSTRATED PARTS BREAKDOWN Table 27. HPMS Assembly Illustrated Parts Breakdown (see Figure 21 and 22) Page Page Page 6. TROUBLESHOOTING 6 T G NG IN Page 6. TROUBLESHOOTING Page 7 A . 7. A Page 8 W Y TY AN Page 9. GLOSSARY 9 G Y RY AR