TABLES AND FIGURES
Page III
© 2007 DH Instruments, a Fluke Company
T
T
A
A
B
B
L
L
E
E
O
O
F
F
C
C
O
O
N
N
T
T
E
E
N
N
T
T
S
S
T A B L E O F C O N T E N T S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I I I
T A B L E S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V I I
F I G U R E S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V I I I
A B O U T T H I S M A N U A L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X I
1 .
I N T R O D U C T I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1
OVERVIEW ..............................................................................................................................................1
1.2
REQUIREMENTS.....................................................................................................................................2
1.3
SPECIFICATIONS....................................................................................................................................2
1.3.1
GENERAL SPECIFICATIONS.......................................................................................................................2
1.3.1.1
FPG8601 GENERAL SPECIFICATIONS...................................................................................................2
1.3.1.2
AMBIENT AND INSTRUMENT CONDITION MEASUREMENTS..............................................................3
1.3.1.3
PISTON-CYLINDER...................................................................................................................................3
1.3.1.4
PRESSURE MEASUREMENT...................................................................................................................3
1.3.2
VLPC GENERAL SPECIFICATIONS ............................................................................................................4
1.4
FPG PLATFORM FRONT AND REAR PANELS AND VLPC FRONT AND REAR PANELS .................5
1.4.1
TERMINAL FRONT AND REAR PANELS ....................................................................................................5
1.4.1.1
FPG TERMINAL FRONT PANEL...............................................................................................................5
1.4.1.2
FPG TERMINAL REAR PANEL .................................................................................................................6
1.4.2
FPG PLATFORM FRONT VIEW ...................................................................................................................7
1.4.3
FPG PLATFORM BACK VIEW .....................................................................................................................8
1.4.3.1
VLPC REAR PANEL ASSEMBLY..............................................................................................................9
2 .
F P G T H E O R Y O F O P E R A T I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1
2.1
OVERVIEW ............................................................................................................................................11
2.2
PISTON-CYLINDER...............................................................................................................................11
2.3
LOAD CELL ...........................................................................................................................................13
2.4
LUBRICATION PRESSURE .................................................................................................................. 14
2.5
VACUUM REFERENCE PRESSURE ....................................................................................................14
2.6
SIMPLIFIED FORMULA FOR CALCULATING DIFFERENTIAL PRESSURE ......................................15
2.6.1
REFERENCE LEVEL...................................................................................................................................16
2.7
CORRECTIONS .....................................................................................................................................16
2.7.1
δ
N1 ...............................................................................................................................................................16
2.7.2
δ
N2 ...............................................................................................................................................................16
2.7.3
δ
N3 ...............................................................................................................................................................17
2.8
COMPLETE DIFFERENTIAL PRESSURE EQUATION ........................................................................18
3 .
V L P C T H E O R Y O F O P E R A T I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9
3.1
OVERVIEW ............................................................................................................................................19
3.2
SUPPLY AND REGULATION ................................................................................................................ 20
3.3
FLOW CONTROL ..................................................................................................................................20
3.4
RANGE RESTRICTIONS ....................................................................................................................... 21
3.5
CONTROL ..............................................................................................................................................21
3.6
READY/NOT READY ............................................................................................................................. 22
