GFS2102™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page II
3.1.10
MS-2102-0.7 MASS SET OR MS-2102-CAR MASS CARRIER ..................................................................23
3.1.11
MOLSTICS ...................................................................................................................................................23
3.2
SITE REQUIREMENTS..........................................................................................................................23
3.2.1
GFS2102 SYSTEM ......................................................................................................................................23
3.2.2
GFS-FS REFERENCE GAS CYLINDER FILL STATION ............................................................................25
3.3
SETUP ...................................................................................................................................................26
3.3.1
POSITION THE VIBRATION ISOLATION TABLE ......................................................................................26
3.3.2
INSTALL DRAFT ENCLOSURE ON VIBRATION ISOLATION TABLE......................................................27
3.3.3
SETUP LCM.................................................................................................................................................28
3.3.4
SETUP MFC-CB ..........................................................................................................................................29
3.3.5
SET UP THE SYSTEM CONTROLLER (PC) ..............................................................................................29
3.3.6
VERIFY GFS CALIBRATION DATA............................................................................................................29
3.3.7
ASSEMBLE REFERENCE GAS CYLINDER(S)..........................................................................................30
3.3.8
ENTER REFERENCE GAS CYLINDER DATA ...........................................................................................32
3.3.9
INSTALLATION OF REFERENCE MASS ON MASS PLATE.....................................................................32
3.3.10
INITIAL BALANCE AND AMH BASE SETUP .............................................................................................34
3.3.11
SETUP BALANCE LOCATION....................................................................................................................35
3.3.12
AMH POSITION FINE ADJUSTMENT.........................................................................................................36
3.3.13
SETUP PROBE LOCATIONS......................................................................................................................38
3.3.14
PREPARE THE HEAT EXCHANGER..........................................................................................................39
3.3.15
CONNECT THE DUT FLOW PATH .............................................................................................................40
3.3.16
CONNECT GAS CONVEYANCE LOOP......................................................................................................41
4 .
O P E R A T I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3
4.1
GENERAL OPERATING PRINCIPLES .................................................................................................43
4.1.1
GFS2102 MEASUREMENT PRINCIPLE .....................................................................................................43
4.1.2
GAS DEPENDENT MASS RANGES AND CYLINDER SIZE SELECTION ................................................44
4.1.3
AUTOZERO..................................................................................................................................................46
4.1.4
GFS2102 DATA COLLECTION METHODS AND CONVENTIONS ............................................................46
4.1.4.1
ACCUMULATIONS ..................................................................................................................................46
4.1.4.2
SAMPLES ................................................................................................................................................46
4.1.4.3
AVERAGES AND BEST FITS ..................................................................................................................47
4.1.5
SETTINGS FOR FLOW SAMPLING............................................................................................................47
4.1.5.1
SETTING UP STARTING AND ENDING SAMPLE TOLERANCE...........................................................48
4.2
MANUAL GFS TOOLS OPERATION ....................................................................................................48
4.2.1
READING THE BALANCE...........................................................................................................................48
4.2.2
AMH OPERATION .......................................................................................................................................49
4.2.3
BALANCE ZERO AND SPAN ADJUSTMENT ............................................................................................49
4.3
REFERENCE GAS CYLINDER FILLING ..............................................................................................49
4.3.1
TRANSPORTING THE REFERENCE GAS CYLINDER ASSEMBLY.........................................................49
4.3.2
EVACUATING AND RINSING .....................................................................................................................50
4.3.3
CONNECTING TO GFS-FS .........................................................................................................................50
4.3.4
FILLING THE CYLINDER ............................................................................................................................51
4.4
CONSIDERATIONS FOR MAKING RELIABLE MEASUREMENTS .....................................................53
4.4.1
COOLING AND CONDENSATION AT HIGH FLOW ...................................................................................53
4.4.2
STABILITY OF AMBIENT CONDITIONS ....................................................................................................53
4.4.3
COMPARING REFERENCE AND DUT MEASUREMENTS USING FLOW VS. MASS CALCULATIONS 54
4.4.4
LEAKS .........................................................................................................................................................54
4.4.4.1
LEAK TEST OPTION IN A TEST DEFINITION........................................................................................55
4.4.4.2
SEMI-AUTOMATED LEAK TEST.............................................................................................................55
4.4.4.3
SEMI-AUTOMATED LEAK TEST TO MANUAL ISOLATION POINT ......................................................55
4.4.5
FLOW CONTROL AND STABILITY ............................................................................................................56