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Gas- and Steam Flowcomputer
DigiFlow 515
Operating Manual
3
Directory
1 INTRODUCTION ...............................................................................................................................................................................5
2 ORDERING DETAILS ......................................................................................................................................................................6
3 TECHNICAL DATA ..........................................................................................................................................................................6
4 ALGORITHMS...................................................................................................................................................................................8
5 OPERATION.......................................................................................................................................................................................9
5.1 F
RONT VIEW
........................................................................................................................................................................................9
5.2 G
ENERAL
.............................................................................................................................................................................................9
6 APPLICATION.................................................................................................................................................................................10
6.1
T
HE
D
IGI
F
LOW
515
AS GAS COMPENSATION CALCULATOR
. .................................................................................................................10
6.1.1 Parameter setting of the flow calculator: .................................................................................................................................12
6.1.2 Application for Ideals Gases ....................................................................................................................................................13
6.1.3 Application for General Gases .................................................................................................................................................14
6.1.4 Natural Gas ..............................................................................................................................................................................15
6.2 T
HE
D
IGI
F
LOW
515
FOR THE STEAMING QUANTITY MEASURING
..........................................................................................................16
6.3 T
HE
D
IGI
F
LOW
515
AS HEAT CONSUMPTION CALCULATOR
..................................................................................................................17
6.3.1 Programming The Flow Computer...........................................................................................................................................18
6.4 F
ILTERING OF
T
HE
F
LOW
I
NPUT
.........................................................................................................................................................19
6.5 C
ORRECTION OF
T
HE
N
ONLINEARITY
.................................................................................................................................................20
6.5.1 Correction for the frequency input ...........................................................................................................................................20
6.5.2 Linearization for the analog input............................................................................................................................................20
7 PROGRAMMING AND PARAMETER SETTING......................................................................................................................21
7.1 K
EY DESCRIPTION
..............................................................................................................................................................................21
7.2 C
ONFIGURATION OF A SET
..................................................................................................................................................................21
7.3 I
NPUT OF A NUMBER
...........................................................................................................................................................................21
8 MENU TABLES................................................................................................................................................................................22
8.1 M
AIN
M
ENU
......................................................................................................................................................................................22
8.2 B
ASE
S
ETUP
......................................................................................................................................................................................22
8.3 M
EDIUM
P
ARAMETERS
......................................................................................................................................................................23
8.4 S
IGNAL
C
HECK
..................................................................................................................................................................................23
8.5 F
LOW
P
ARAMETERS
...........................................................................................................................................................................24
8.6 O
PTIONS
............................................................................................................................................................................................25
9 INPUT CIRCUITS............................................................................................................................................................................26
9.1 F
REQUENCY SIGNAL
...........................................................................................................................................................................26
9.2 A
NALOG INPUTS
.................................................................................................................................................................................28
9.2.1 Input of Pt100 RTD ..................................................................................................................................................................28
9.2.2 Analog 4-20mA input................................................................................................................................................................28
9.3 R
EMOTE SWITCHED FUNCTIONS
..........................................................................................................................................................30
10 OUTPUT CIRCUITS......................................................................................................................................................................31
10.1 D
IGITAL OUTPUT
..............................................................................................................................................................................31
10.2 R
ELAY OUTPUT
................................................................................................................................................................................32
10.3 RS232
OR
RS485
INTERFACE
..........................................................................................................................................................32
10.3.1 Hardware................................................................................................................................................................................32
10.3.2 Communication Protocol........................................................................................................................................................33
10.3.3 Printers Protocol ....................................................................................................................................................................33
10.3.4 Host–Communication .............................................................................................................................................................33
10.3.5 Network communications........................................................................................................................................................34
11 OPTIONS.........................................................................................................................................................................................35
11.1
A
NALOG OUTPUT
.............................................................................................................................................................................35
11.2 C
ONTROL OF A
S
ENSOR
–P
URGE
–U
NIT
.............................................................................................................................................36
11.2.1 Time diagram Sensor–Purge–Unit .........................................................................................................................................36
11.2.2 Functional description: ..........................................................................................................................................................36
12 INSTALLATION ............................................................................................................................................................................37
12.1 G
ENERAL
.........................................................................................................................................................................................37
12.2 R
EAR
V
IEW
.....................................................................................................................................................................................37
12.3 W
IRING
D
ESIGNATIONS
....................................................................................................................................................................37
13 BLOCK DIAGRAM .......................................................................................................................................................................39
14 APPENDIX A
ERROR DESCRIPTIONS
......................................................................................................................................40
15 APPENDIX B
PROPERTIES OF SOME GASES:
........................................................................................................................41
16 APPENDIX C
APPLICATIONS (EXAMPLES)
............................................................................................................................42
Summary of Contents for digiflow 515
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