FUJI EDS6-125

FFI SYSTEM
OPTICAL DIFFERENTIAL PRESSURE (FLOW) TRANSMITTER
DATA SHEET
FFK···3
The Model FFK 3 Optical Differential Pressure (Flow)
Transmitter measures differential pressures (flow rates) of
various fluids accurately, converts them into optical digital
signals and outputs them. This is an intelligent transmitter
providing excellent performance and functions due to incorporation of electrostatic capacitance type silicon sensor
and microprocessor.
A fiber optical cable used for the signal transmission line
forms an optical field instrumentation system together with
an optical star coupler and a master station.
FEATURES
1. Resistive to noise and lightning
Optical signal ensures a reliable signal transmission, because it is not be affected by external noise and inductive lightning. Use of a nonmetallic optical (fiber) cable
prevents propagation of inductive lightning through the
cable, so a signal transmission immune to lightning can
be realized.
2. Reliability due to redundant configuration
Host system can be duplicated by using two optical cable
trunk lines (between an optical star coupler and host
system. This enhances reliability of users’ systems.
3. Intrinsic safety type explosion-proof
Each equipment with a built-in battery can be constructed
so as to be an intrinsic safety type individually (intrinsic
safety type barrier unnecessary).
SPECIFICATIONS
Functional specifications
Fluids measured: Liquid, gas or steam
Measuring range and operating pressure:
Type
Operating
pressure
[MPa]
Span [kPa]
Range limits [kPa]
Minimum Maximum Lower
Upper
value
value range limit range limit
FFKM11 -0.1 to +3.2
0.1
1
-1
1
FFKM22 -0.1 to +10
0.15
6
-6
6
FFKM23 -0.1 to +10
0.8
32
-32
32
FFKM25 -0.1 to +10
3.25
130
-130
130
FFKM26 -0.1 to +10
12.5
500
-500
500
FFKM33 -0.1 to +16
0.8
32
-32
32
FFKM35 -0.1 to +16
3.25
130
-130
130
FFKM36 -0.1 to +16
12.5
500
-500
500
FFKM38 -0.1 to +16
75
3000
-3000
3000
FFKM43 -0.1 to +42
0.8
32
-32
32
FFKM45 -0.1 to +42
3.25
130
-130
130
FFKM46 -0.1 to +42
12.5
500
-500
500
FFKM48 -0.1 to +30
75
3000
-3000
3000
EDS6-125
Date
May 20, 2004
FFK···3
Process temperature, Allowable pressure limit:
For details refer to Fig.1.
13th
Process
(Note) Allowable
pressure limit
code digit temperature
Fill-fluid
Silicon oil
Y, G, N
Fluorolube oil
W, A, D -20 to +80°C
Silicon oil
R
Self-diagnosis:
-40 to +120°C
2.7kPa abs
Displayed on indication unit (option) and
transmitted to master station.
Diagnosis item
For linear output of differential pressure
Host
system
Indication
unit
Measuring range abnormal
Detecting unit failure
Amplifier abnormal
Battery voltage
Battery voltage low alarm
Remote control function:
See Table 1.
Output signal: Optical digital signal
Power supply: Built-in lithium battery (expected life:
about 4 years)
Optical cable:
Code set type,
silica fiber ... core/clad diameter
100/140 µm
Optical connector:
FC connector
Transmission distance:
1.5 km max. (when transmission loss of
optical cable is 4 dB/km)
Damping:
Variable from 0.2 to 32 sec (time constant)
Zero elevation and suppression:
Possible within ± 100% of maximum
span.
Explosion-proof: Intrinsic safety type, JIS ib IIC T3
Ambient temperature:
-30 to +70°C
-10 to +60°C for intrinsic safety explosion-proof type
-20 to +70°C when provided with indicator
-10 to +60°C when filled with fluorolube
oil
Storage temperature:
-40 to +80°C
Medium
High
differential
differential
pressure
pressure
1, 6kPa
32, 130kPa
500, 3000kPa
±0.1% when measuring span is 1/10 or more of
maximum span.
max. span
±(0.05 + 0.005
)% when
measuring span
measuring span is less than 1/10 of maximum span.
Low
differential pressure
2.7kPa abs
Atmospheric
pressure
-15 to +120°C
Performance specifications
Max. span
(Note)
Accuracy
rating
Abmient
temperature
effect
Zero shift:
URL
±(0.125+0.2 x )%
/ 28°C
Overall shift:
URL
±(0.175+0.2 x )%
/ 28°C
Twice as large as above
when 7th digit (material)
is other than V
±0.3% / 1MPa
Zero shift:
URL
±(0.1+0.05 x )%
/ 28°C
Overall shift:
URL
±(0.15+0.05 x )%
URL:
Max. span
/ 28°C
x:
3 times as large as above when
Measuring
7th code (material) is other than
span
V
Overrange
±0.1% / 10MPa
effect
±0.1% / 16MPa
(zero shift at ±0.1% / 3.2MPa
±0.25% / 42MPa
max. span)
Twice as large as above when 7th digit (material) is
other than V
Static pressure ±0.2% / 1MPa
±0.05% / 10MPa
effect
±0.1% / 3.2MPa
(zero shift at Twice as large as above when 7th digit (material) is
max. span) other than V
(Span shift
+0.2
+0.2
at measuring -0.2%-0.4 % / 3.2MPa -0.2% -0.4 % / 10MPa
span)
Note: Percent value with respect to measuring span (including
linearity, hysteresis and repeatability in standard 23°C status)
For square-root output
Max. span
Accuracy
rating
(inclusive of
linearity and
hysteresis)
Low flow
cutoff point
Low
Medium
High
differential pressure differential pressure differential pressure
1, 6kPa
32, 130kPa
500, 3000kPa
(Between 1 and 0.1) × max. span:
±0.1% for output 50 to 100%
±0.25% for output 20 to less than 50%
±0.5% for output 10 to less than 20%
(Between 0.1 and 0.04) × max. span:
For output 50 to 100%;
max. span
±1 × (0.05 + 0.005
)%
measuring span
For output 20 to less than 50%;
max. span
±2.5 × (0.05 + 0.005
)%
measuring span
For output 10 to less than 20%;
max. span
±5 × (0.05 + 0.005
)%
measuring span
Flow rate value variable within 0 to 20%
(default value: 7%)
±2.5 × (0.1 + 0.2
Ambient
URL
±2.5 × (0.1 + 0.05 x )% / 28°C
URL
temperature
× x )% / 28°C
effect (shift at
20% point)
URL:
Max. span
x:
Measuring
span
2
Inclination effect:
0.12kPa/ 10°
Double above value when 13th digit (treatment, sealed liquid) is W, D, or A.
Measurement period:
0.2 sec
Response time:
Type
*Time constant [sec] Dead time [sec]
FFKM11
FFKM22
FFKMM3
5
FFKMM
8
Note: *Value at 23°C
0.8
0.5
0.3
About 0.2
0.2
Optional specifications
Indication unit: 5-digit LCD indication, % or real scale
indication (as specified by code symbol)
Operating temperature range: -20 to
+70°C
Oxygen oil-proof processing:

Fluorolube oil filled, wet- 
ted parts degreased and  Varies with

cleaned.
 material.
Chlorine service: Fluorolube oil filled
 Refer to
NACE specification:
 CODE
H2S-proof treatment in  SYMBOLS.

accordance with NACE 
specifications.

Physical specifications
Material:
For details, refer to Code symbols.
Operating
pressure [MPa]
Seal diaphragm Other wetted parts 3.2 10 16 42
SCS14
SUS316L
SUS316
SCS14
SUS316L · Gold- SUS316
plated
H SCS14
Hastelloy-C
Hastelloy-C
M SCS14
Monel
Monel
T SCS14
Tantalum
Tantalum
B Hastelloy-C Hastelloy-C
Hastelloy-C
lining
L Monel lining Monel
Monel
U Tantalum
Tantalum
Tantalum
lining
Notes: ...available, ...unavailable
Material
code
V
J
Process
cover
Detecting unit
Environmental protection:
Meets JIS C0920 immersion-proof
(equivalent to IEC IP67 or NEMA 6/6P).
Process connection:
Rc1/4 or 1/4-18NPT (whichever selected
by code symbol)
Oval flange thread 7/16-20UNF
Optical cable connection:
G1/2 or 1/2-14NPT (whichever selected
by code symbol)
Mounting method:
Mounted on 50A (2B) pipe with U-bolt or
on a wall.
Finish:
Epoxy-polyurethane double coat,
Color; Silver (blue for case cover).
External dimensions:
See OUTLINE DIAGRAM.
Mass:
5.3 to 5.5kg
Orientation of transmission unit:
Indicator unit turnable 90° upward/downward relative to detection unit.
3
FFK···3
Table 1 Remote Control Function
(Items readable and setting from hand-held
communicator)
Reading Setting
Measuring range
Damping
Real scale indication
Battery voltage
Error indication
Measured value
Adjustment
Fill-fluid:
Silicone oil (Code: R)
Description
Maximum measuring range of
equipment
Actual measuring range
Variable within 0.2 to 32 sec
Indication in industrial value
Battery voltage of equipment
Errors of detection unit and
amplifier
Measured data
Zero and span adjustment
Note: For operation of the “3” type transmitter (“3” at the 8th digit
of product code), a hand-held communicator is required to
have a version 1.6 or higher, but a communicator before
version 1.6 can be operated with memory data updated.
(Refer to the instruction manual of transmitter.)
[kPa abs]
101
Operating pressure
Item
Maximum range
Fill-fluid: Silicone oil
(Code: Y, G, N)
Operating area
20
4
2.7
None-operating area
–40 –15
60 85 120 [°C]
Process temperature
Fig. 1 Relation between process temperature and
operating pressure
SYSTEM BLOCK DIAGRAM
1:1 system
Host system
Master station
Control room
Field
1 to 5V DC
4 to 20mA DC
Optical fiber type
electric converter
(Type; PSN)
Star coupler
Transmitter
Transmitter
Field equipment
(max. 8 units)
Transmission distance: 1.5 km max.
(between master station and field equipment)
4
Transmission distance: 4 km max.
CODE SYMBOLS
1 2 3 4 5 6 7 8
FFK
3
9 10111213 1415
F
S
T
Description
Connection (4th digit)
Process connection Cable lead-in port
Rc1/4
G1/2
1/4-18NPT
1/2-14NPT
Operating pressure and measuring span (5th and 6th digits)
Operating pressure range Measuring span
-0.1 to +3.2 MPa
0.1………...1 kPa
-0.1 to +10 MPa
0.15……… 6 kPa
-0.1 to +16 MPa
0.8……… 32kPa
3.25…… 130kPa
12.5…… 500kPa
75…… 3000kPa
-0.1 to +42 MPa
0.8……… 32kPa
3.25…… 130kPa
12.5…… 500kPa
-0.1 to +30 MPa
75…… 3000kPa
-0.1 to +10 MPa
0.8……… 32kPa
For material codes B, L
3.25…… 130kPa
and U
12.5…… 500kPa
11
22
33
35
36
38
43
45
46
48
23
25
26
Material (7th digit)
Process cover
V
SCS14
J
SCS14
H
SCS14
M
T
B
L
U
SCS14
SCS14
Hastelloy-C lining
Monel lining
Tantalum lining
Seal
diaphragm
SUS316L
Other
Application
wetted parts (5th and 6th digits)
SUS316
11,22,33,35,36,38,
43,45,46,48
SUS316L · Gold- SUS316
11,22,33,35,36,38,
plated
43,45,46,48
Hastelloy-C
Hastelloy-C 11,22,33,35,36,43,
45,46
Monel
Monel
33,35,36,43,45,46
Tantalum
Tantalum
33,35,36
Hastelloy-C
Hastelloy-C

 23,25,26
Monel
Monel

Tantalum
Tantalum
Indicator and output (9th digit)
Indicator
Output
Not provided
Linear
Not provided
Square-root extraction
Digital, % indication
Linear
Digital, real scale
Linear
Digital, % indication
Square-root extraction
Digital, real scale
Square-root extraction
Y
A
L
P
Q
S
A
G
Explosion-proof (10th digit)
Non-explosion proof
Intrinsic safety, JIS
5
FFK···3
1 2 3 4 5 6 7 8
FFK
3
9 10111213 1415
F
Description
Side vent/drain and fixture (11th digit)
Side vent/drain
None
None
Yes
Yes
A
C
D
F
Mounting fixture
None
Yes (stainless steel)
 Cannot be specified
None
 when 7th digit is B, L
Yes (stainless steel)  or U.
Treatment and Fill-fluid (13th digit)
D
Treatment
None
None
Degreasing
Oxygen oil-proof
processing
Chlorine service
N
NACE specification
R
None
Y
W
G
A
Fill-fluid
Silicon oil
Fluorolube oil
Silicon oil
Fluorolube oil ... Specifiable when 7th digit is V.
Fluorolube oil ... Cannot be specified when 7th
digit is V, M or L.
Fluorolube oil ... Cannot be specified when 7th
digit is T or U.
Silicon oil (for vacuum)
O-ring material (for process cover)(14th digit)
Viton
Teflon
A
B
C
D
E
F
Bolt/nut (15th digit)
NACE bolt/nut (ASTM A193 B7M/A194 2HM) 
 Note 1
NACE bolt/nut (ASTM A320 L7M/A194 2HM) 
SUS304/SUS304 ... (For general use) ... Note 2
SUS630/SUS304 ... Specify when 5th digit is 3 or 4.
Note 1: Operating pressure is limited within 10 MPa.
Note 2: Specifiable when 5th digit is 1, 2 or 3.
However, operating pressure is limited within 10 MPa.
6
OUTLINE DIAGRAM
(Unit : mm)
P
FFK S
T
241
80
108
70
V
J
H 3–
M
T
A
C
Mounting pipe
JIS 50A (2B)
U-bolt
(M8)
70
φ102
225
8
315
54
15
Indicator (option)
B
Gas vent, drain port
Optical cable lead-in port
A
A
Low pressure
connection
41.3
LH
B
L 3–
U
FFK S
T
High pressure
connection
37 27
47
A
C
A
Pressure connection
4–7/16-20UNF
Thread depth 13
(for oval flange)
318
41.3
27
28
φ102
View from arrow P
φ7
3
8
φ15
D
E
2.5
15
54
φ18.5
4-7/16-20UNF
Thread depth 10
(for oval flange)
40
Details of “B” Details of “A”
Gas vent, drain port
27
47
φ16
φ12
Type
FFKT
D
Rc1/4
1/4–18NPT
E
G1/2
1/2–14NPT
0
φ4
2 –0.1
1
FFKS
+0.2
+0.1
Details of “A”
7
FFK···3
SCOPE OF DELIVERY
ORDERING INFORMATION
Instrument body and pipe fixture (as specified)
1.
2.
3.
4.
ITEM TO BE PREPARED SEPARATELY
Oval flange:
Model type
Measuring range
Indication scale for real scale specification
Others
To be used as a flange of connecting pipe
port.
For details, refer to the DATA SHEET of
oval flange (EDS6-10).
Equalizing valve:
Refer to DATA SHEET (EDS6-10).
Caution on Safety
*Before using this product, be sure to read its instruction manual in advance.
Head Office
6-17, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
http://www.fesys.co.jp/eng
Sales Div.
International Sales Dept.
No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan
Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187
http: //www.fic-net.jp/eng
Information in this catalog is subject to change without notice.
Printed in Japan