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301/303/305/306/307 Flowmeters and Controllers Instruction Manual
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Page 3 of 32
Table of Contents
1.
GENERAL INFORMATION ................................................................................................. 5
F
EATURES
.............................................................................................................. 6
S
PECIFICATIONS
......................................................................................................... 7
O
PTIONAL
4-20
M
A
C
URRENT
O
UTPUT
.................................................................................. 9
A
CCESSORIES
......................................................................................................... 10
1.4.1.
Power Supplies.............................................................................................. 10
1.4.2.
Cables ........................................................................................................ 10
2.
INSTALLATION AND SETUP ............................................................................................ 11
R
ECEIVING
I
NSPECTION
................................................................................................ 11
P
OWER
R
EQUIREMENTS
................................................................................................ 11
O
UTPUT
S
IGNAL
...................................................................................................... 11
M
ECHANICAL
C
ONNECTIONS
........................................................................................... 12
2.4.1.
Gas Quality (Filtering) ..................................................................................... 12
2.4.2.
Mounting ..................................................................................................... 12
2.4.3.
Plumbing ..................................................................................................... 12
E
LECTRICAL
C
ONNECTIONS
............................................................................................ 13
O
PERATION
........................................................................................................... 15
2.6.1.
Operating Conditions ...................................................................................... 15
2.6.2.
Zero Check .................................................................................................. 15
2.6.3.
High Pressure Operation .................................................................................. 15
2.6.4.
Vertical Mounting .......................................................................................... 18
2.6.5.
Gas Blending ................................................................................................ 18
R
ANGE
C
HANGING
....................................................................
E
RROR
!
B
OOKMARK NOT DEFINED
.
O
UTPUT
F
ILTER
....................................................................................................... 19
C
ONTROLLING
O
THER
P
ROCESS
V
ARIABLES
(E
XTERNAL
I
NPUT
) ......................................................... 20
C
OMMAND
I
NPUT
...................................................................................................... 20
V
ALVE
O
VERRIDE
C
ONTROL
........................................................................................... 20
G
AIN
P
OTENTIOMETER
................................................................................................ 21
T
EMPERATURE
C
OEFFICIENTS
.......................................................................................... 21
3.
MAINTENANCE ........................................................................................................... 22
T
ROUBLESHOOTING
................................................................................................... 22
A
DJUSTMENTS
(C
ALIBRATION
P
ROCEDURE
) ............................................................................ 24
E
NDCAP
R
EMOVAL
.................................................................................................... 24
P
RINTED
C
IRCUIT
B
OARD
R
EPLACEMENT
............................................................................... 25
S
ENSOR
R
EPLACEMENT
................................................................................................ 25
4.
GAS CONVERSION FACTORS ........................................................................................... 26
5.
WARRANTY AND REPAIR ............................................................................................... 27