FCX – AX SERIES
ABSOLUTE PRESSURE TRANSMITTER
FHA, FKA...3
DATA SHEET
The FCX – AX absolute pressure transmitter accurately
measures absolute pressure and transmits a proportional 4
to 20mA signal.
The transmitter utilizes a unique micromachined capacitance silicon sensor with state-of-the-art microprocessor
tech-nology to provide exceptional performance and functionality.
FEATURES
1. High accuracy
0.2% accuracy for all calibrated spans is a standard feature for all AP models covering 1.6kPa{0.016bar} range
to 3000kPa{30bar} high pressure range. 0.1% accuracy
is available as option. Fuji's micro-capacitance silicon
sensor assures this accuracy for all suppressed calibration ranges without additional adjustment.
2. Minimum environmental influence
The "Advanced Floating Cell" design which protects the
pressure sensor against changes in temperature, and
overpressure substantially reduces total measurement
error in actual field applications.
3. Replaceable Communication Module
Fuji micro-electronics manufacturing technology offers
replaceable communication module that makes FCX – AX
transmitter very unique in design. In case of change in
communication protocol, all that needs to be done is just
to replace the module and the transmitter gets upgraded
to the new version.
4. Fuji/HART bilingual communication module
The communication module is "bilingual" to speak both Fuji
proprietary protocol and HART. Any HART compatible
devices can communicate with FCX – AX series transmitters.
5. Application flexibility
Various options that render the FCX – AX suitable for
almost any process applications include:
— Analog indicator at either the electronics side or terminal side
— Full range of hazardous area approvals
— Built-in RFI filter and lightning arrester
— 4 12 -digits LCD meter
— Stainless steel electronics housing
— Wide selection of materials
6. Burnout current flexibility (Under Scale: 3.2 to 3.8mA,
Over Scale: 20.8 to 21.6mA)
Burnout signal level is adjustable using Model FXW hand
Held Communicator (HHC) to comply with NAMUR NE43.
(Available for amplifier unit from version 24 and FXW(HHC) version
5.3.)
7. Dry calibration without reference pressure
Thanks to the best combination of unique construction
of mechanical parts (Sensor unit) and high performance
electronics circuit (Electronics unit), reliability of dry
calibration without reference pressure is at equal level
as wet calibration.
SPECIFICATIONS
Functional specifications
Type:
Model FHA:
Model FKA:
Service:
Span, range, and
4 to 20mA
4 to 20mA with digital signal
Liquid, gas, or vapour
overrange limit:
Span limit
[kPa abs] {bar abs}
Type
Max.
Min.
F
A
01
F
A
02
F
A
03
F
A
04
FHA
FKA
1.6
{0.016}
13
{0.13}
50
{0.5}
300
{3}
1.6
{0.016}
1.6
{0.016}
5
{0.05}
30
{0.3}
Overrange
limit
[MPa]
{bar}
Range limit
[kPa abs]
{bar abs}
FHA/FKA
16
{0.16}
130
{1.3}
500
{5}
3000
{30}
0 to +16
{0 to +0.16}
0 to +130
{0 to +1.3}
0 to +500
{0 to +5}
0 to +3000
{0 to +30}
0.5
{5}
0.5
{5}
1.5
{15}
9
{90}
Remark: To minimize environmental influence, span should be greater
than 1/40 of the max. span in most applications.
— The maximum span of each sensor can be converted to
different units using factors as below.
1MPa abs=103kPa abs=10bar abs=10.19716kgf/cm2 abs
=145.0377psi abs
1kPa abs=10mbar abs=101.9716mmH2O abs=
4.01463inH2O abs=7.50062mmHg abs
Output signal:
Model FHA: 4 to 20mA DC 2-wire
Model FKA: 4 to 20mA DC with digital signal superimposed on the 4 to 20mA signal.
Power supply:
Transmitter operates on 10.5V to 45V DC
at transmitter terminals.
10.5V to 32V DC for the units with optional arrester.
EDSX5-71
Date
Mar. 15, 1999
FHA, FKA...3
Load limitations: see figure below
“Output Overscale”:
Approx. 21.6mA
(Adjustable within the range 20.8mA to
21.6mA from HHC)
“Output Underscale”:
Approx. 3.8mA
(Adjustable within the range 3.2mA to
3.8mA from HHC)
[Ω]
Load resistance
2000
1533Ω
1500
1000
600Ω
3.2
Operating
area
500
24V
250
10
16.1
10.5V
Power voltage
Over scale
Burnout
50
[V]
Hazardous locations: (Approval pending)
BASEEFA
Factory
Mutual
CSA
RIIS
SAA
Flameproof
Ex ds IIC T5, T6
Class I II III
Div. 1
Groups B thru. G
Class I II III
Div. 1
Groups C thru. G
Ex ds IIB+H2 T4
Ex d II C T5, T6
IP 66/67
Intrinsic safety
EEx ia IIC T4, T5
Class I II III
Div. 1
Groups A thru. F
Class I II III
Div. 1
Groups A thru. G
—
Ex ia II C T5, T6
IP 66/67
Type N
Nonincendive
Ex N II T5
Class I II III
Div. 2
Groups A thru. G
Class I II III
Div. 2
Groups A thru. G
—
Ex n II C T5, T6
IP 66/67
Zero/span adjustment:
Model FHA: Zero is adjustable from the external
adjustment screw.
The adjustment screw can also function
to adjust span when MODE SWITCH
(located on the electronics unit) is in the
span mode. INHIBIT mode to disable the
adjustment screw is also available.
Model FKA: Zero and span are adjustable from the
HHC. Zero is also adjustable externally
from the adjustment screw.
Damping:
Adjustable electrical damping
Model FHA: The time constant is adjustable to 0, 0.3,
1.2, 4.8, or 19.2 seconds.
Model FKA: The time constant is adjustable between
0 to 38.4 seconds. (9 steps)
Zero elevation/suppression:
Zero can be elevated within the specified
range limit of each sensor model.
Normal/reverse action:
Model FHA: Selectable by moving a jumper pin located
on the electronics unit.
Model FKA: Configurable from HHC.
Indication:
Analog indicator or 4 12 -digit LCD meter,
as specified.
Burnout direction: If self-diagnostic detect transmitter failure, the analog signal will be driven to either “Output Hold”, “Output Overscale”
or “Output Underscale” modes.
Model FHA: Unless otherwise specified in the order,
the transmitter will be shipped in “Output
Hold” mode.
(Output signal just before failure happens
is maintained.)
Model FKA: Selectable from HHC
“Output Hold”:
Output signal is hold as the value just before failure happens.
2
20 20.8
45V
Note: For communication with HHC (Model: FXW), min. of 250Ω is required.
Authorities
3.8 4
0
Normal operating range
Under scale
Probable under range
Burnout
21.6
Probable over range
Loop-check output:
Model FHA: Transmitter can output constant signal of
4mA, 12mA, or 20mA if MODE SWITCH
is set to the loop check mode.
Model FKA: Transmitter can be configured to provide
constant signal 3.8mA through 21.6mA
by HHC.
Temperature limit: Ambient: –40 to +85°C
(–20 to +80°C for LCD indicator)
(–40 to +60°C for arrester option)
For explosionproof units (flameproof or
intrinsic safety), ambient temperature
must be within the limits specified by
each standard.
Process: – 40 to +85°C for silicone fill
sensor
Storage: – 40 to +90°C
Humidity limit: O to 100% RH
Communication: (Model FKA only)
With HHC (Model FXW, consult Data
Sheet No. EDS8-47), following information can be remotely displayed or reconfigured.
Items
Tag No.
Model No.
Serial No.
Engineering unit
Range limit
Measuring range
Damping
Output mode
Burnout direction
Adjustment
Output adjust
Data
Self diagnoses
Printer
External switch lock
Transmitter display(*)
Display
Set
v
v
v
v
v
v
v
v
v
v
—
v
v
—
v
v
v
v
—
v
—
v
v
v
v
v
v
—
—
—
v
v
Note: (*) HHC's version must be more than 5.0 (or
FXW
1– 2), to use this function.
Performance specifications
Accuracy rating: (including linearity, hysteresis, and repeatability).
(Standard)
For spans greater than 1/10 of URL: ± 0.2% of span
For spans below 1/10 of URL (Model FKA only):
0.1 x URL
± (0.1 + 0.1
)% of span
Span
(Option)
(Not available for Max span 16kPa abs, 130kPa abs)
For spans greater than 1/10 of URL: ± 0.1% of span
For spans below 1/10 of URL (Model FKA only):
0.1 x URL
± (0.05 + 0.05
)% of span
Span
Linearity:
0.1% of calibrated span
Stability:
± 0.2% of upper range limit (URL) for 24
months
Temperature effect:
Effect per 28°C change between the
limits of – 40°C and +85°C
Zero shift: ± (0.125+0.1 URL )%
Span
URL
Total effect: ± (0.15+0.1
)%
Span
Double the effects for material code (7th
digit in code symbols) "H", "M", and "T".
Overrange effect: Zero shift; 0.2% of URL for any overrange
to maximum limit
Supply voltage effect:
Less than 0.05% of calibrated span per
10V
RFI effect:
Less than 0.2% of URL for the frequencies of 20 to 1000MHz and field strength
30V/m when electronics covers on.
(Classification: 2-abc: 0.2% span per
SAMA PMC 33.1)
Step response: Time constant. 0.2 s
Dead time: approximately 0.3 s
(without electrical damping)
Mounting position effect:
Zero shift, less than 0.1kPa{1mbar} for a
10° tilt in any plane.
No effect on span. This error can be corrected by adjusting zero.
Dielectric strength:
500V AC, 50/60Hz 1 min., between circuit
and earth.
Insulation resistance:
More than 100MΩ at 500V DC.
Turn-on time:
4 sec
Internal resistance for external field indicator:
12Ω or less
Physical specifications
Electrical connections:
G1/2, 1/2-14NPT, Pg13.5, or M20 x 1.5
conduit, as specified.
Process connections:
1/4-18 NPT or Rc1/4, as specified.
Process-wetted parts material:
Material
code
(7th digit Process cover
in "Code
symbols")
V
H
M
T
Diaphragm
Wetted
sensor body
316
316
316L
stainless steel stainless steel stainless steel
Hastelloy-C
316
Hastelloy-C
lining
stainless steel
Monel lining
316
Monel
stainless steel
Tantalum
316
Tantalum
lining
stainless steel
Vent/drain
316
stainless steel
316
stainless steel
316
stainless steel
316
stainless steel
Notes: Sensor O-rings: Viton
Availability of above material design depends on
ranges.
Refer to "Code symbols".
Non-wetted parts material:
Electronics housing: Low copper die-cast
aluminum alloy (standard), finished
with polyester coating, or 316 stainless
steel (SCS14 per JIS G5121), as
specified.
Bolts and nut: Cr-Mo alloy (standard) or
304 stainless steel
Fill fluid: Silicone oil
Mounting bracket: Carbon steel with
epoxy coating or 304 stainless steel,
as specified
Environmental protection:
IEC IP67 and NEMA 4X
Mounting:
On 60.5mm (JIS 50A) pipe using mounting
bracket, direct wall mounting, or direct
process mounting.
Mass{weight}:
Transmitter approximately 3.4kg without
options.
Add; 0.5kg for mounting bracket
0.8kg for indicator option
4.5kg for stainless steel housing
option
Optional features
Indicator:
A plug-in analog indicator (1.5% accuracy)
can be housed in the electronics compartment or in the terminal box of the housing.
1
An optional 4 2 digits LCD meter is also
available.
Arrester:
A built-in arrester protects the electronics
from lightning surges.
Lightning surge immunity:
4KV (1.2 × 50µs)
Degreasing:
Process-wetted parts are cleaned, but the
fill fluid is standard silicone oil. Not for
use on oxygen or chlorine measurement.
NACE specification:
Metallic materials for all pressure boundary parts comply with NACE MR-01-75.
304 stainless steel bolts and nuts, ASTM
B7M or L7M bolts and 2HM nuts (Class
II) are available.
Customer tag:
A stainless steel tag for customer tag data
is wired to the transmitter.
Coating of cell: Cell's surface is finished with epoxy/
polyurethane double coating. Specify if
environment is extremely corrosive.
ACCESSORIES
Oval flanges:
(Model FFP, refer to Data Sheet No.
EDS6-10)
Converts process connection to 1/2-14
NPT or to Rc1/2; in carbon steel or in 316
stainless steel.
Hand held communicator:
(Model FXW, refer to Data Sheet No.EDS
8-47)
Communication module: (Standard for model FKA)
By adding communication module,
remote setting function becomes available for FHA.
Remark: When the communication module is
connected, the operation mode of external zero/span adjustment screw is
limited to zero adjustment only.
3
FHA, FKA...3
CODE SYMBOLS
1 2 3 4 5 6 7 8
0
9 10 11 12 13
14 15
Description
3
Type
4 to 20mA, Output type
4 to 20mA with digital signal, Output type
FHA
FKA
Connections
S
T
V
W
X
Process
connection
Oval flange
screw
Conduit
connection
Rc1/4
1/4-18NPT
1/4-18NPT
1/4-18NPT
1/4-18NPT
7/16-20UNF
7/16-20UNF
M10
M10
7/16-20UNF
G 1/2
1/2-14NPT
Pg 13.5
M20 × 1.5
Pg 13.5
Span limit
Span limit FHA/FKA
[kPa abs]{bar abs}(*)
Process cover
Diaphragm
Wetted cell body
1V
1H
1M
1.6/1.6…16/16
{0.016/0.016…0.16/0.16
316 stainless steel
316 stainless steel
316 stainless steel
316L stainless steel
Hast. C
Monel
316 stainless steel
Hast. C lining
Monel lining
2V
2H
2M
2T
13/1.6…130/130
{0.13/0.016…1.3/1.3}
316 stainless steel
316 stainless steel
316 stainless steel
316 stainless steel
316L stainless steel
Hast. C
Monel
Tantalum
316 stainless steel
Hast. C lining
Monel lining
Tantalum lining
3V
3H
3M
3T
50/5…500/500
{0.5/0.05…5/5}
316 stainless steel
316 stainless steel
316 stainless steel
316 stainless steel
316L stainlesssteel
Hast. C
Monel
Tantalum
316 stainless steel
Hast. C lining
Monel lining
Tantalum lining
4V
4H
4M
4T
300/30…3000/3000
{3/0.3…30/30}
316stainless steel
316stainless steel
316 stainless steel
316 stainless steel
316L stainless steel
Hast. C
Monel
Tantalum
316 stainless steel
Hast. C lining
Monel lining
Tantalum lining
Note: * 100: 1 turn down is possible for model FKA, but should be used at a span greater
than 1/40 of the maximum span for better performance.
The product conforms to the requirements of the
Electromagnetic compatibility Directive 89/336/EEC as
detailed within the technical construction file number
TN510412. The applicable standards used to demonstrate
compliance are :EMI (Emission)
EN50081-1 : 1992
Test item
Frequency range
Basic standard
Applicable Electromagnetic Radiation
Disturbance
30-1000MHz
EN55022
Class B
EMS (Immunity)
EN50082-1 : 1992
No.
Test item
Test
specification
Basic
standard
Performance
criteria
1
Electrostatic
discharge
8kV (Air)
IEC 801-2:1984
B
2
Radio-frequency 27-500MHz
electromagnetic 3V/m
IEC 801-3:1984
field.
(Unmodulated)
A
3
Fast transients
common mode
0.5kV, 5/50
(Tr/Th) ns
5kHz Rep.
IEC 801-4:1988
B
"LVD - The transmitter is not covered by the requirements
of the LVD standard."
4
1 2 3 4 5 6 7 8
FHA
0
3
F KA
0
3
9 10 11 12 13
14 15
Description
A
B
D
J
E
F
H
K
L
P
Q
S
Indicator and arrester
Indicator
Arrester
None
Analog, 0 to 100% linear scale
Analog, custom scale
None
None
None
Analog, double scale
None
Analog, 0 to 100% linear scale
None (JIS and SI unit)
Yes
Yes
Analog, custom scale
Analog, double scale
Digital, 0 to 100%
Yes
Yes (JIS and SI unit)
None
Digital, custom scale
Digital, 0 to 100%
Digital, custom scale
None (Model FKA only)
Yes
Yes (Model FKA only)
A
Approvals for hazardous locations (Approval pending)
None (for ordinary locations)
B
C
D
JIS, Flameproof (Conduit seal)
JIS, Flameproof (Cable gland seal)
FM, Flameproof (or explosionproof)
E
M
N
H
J
CSA, Flameproof (or explosionproof) (Available for 4th digit code “T“)
BASEEFA, Flameproof (Conduit seal)
BASEEFA, Flameproof (Cable gland seal) (Conduit connection G 1/2 only)
FM, Intrinsic safety and nonincendive
CSA, Intrinsic safety and nonincendive
K
P
R
T
Q
CENELEC, Intrinsic safety
CENELEC, Intrinsic safety and BASEEFA, Type N
SAA Flameproof (Conduit seal)(Available for 4th digit code “S,T,W)
SAA Intrinsic safety(Available for 4th digit code “S,T,W)
SAA Type– N(non-sparking)(Available for 4th digit code “S,T,W)
(Available for 4th digit code “S“)
(Available for 4th digit code “S“)
(Available for 4th digit code “T“)
Side vent/ drain and mounting bracket
Side vent/drain
Mounting bracket
None
None
None
Yes, carbon steel
None
Yes, stainless steel
Yes
None
Yes
Yes, carbon steel
Yes
Yes, stainless steel
A
B
C
D
E
F
Stainless steel parts
Stainless steel tag plate
Y
Stainless steel elec. housing
Coating of cell
B
C
None
Yes
None
None
None
Yes
None
None
None
E
M
Yes
None
Yes
None
None
Yes
N
Yes
None
Yes
None
Yes
Yes
Yes
Yes
Yes
P
Q
Special applications and fill fluid
Treatment
Fill fluid
None (standard)
Silicone oil
Y
G
Degreasing
NACE specification
N
Silicone oil
Silicone oil (7th digit code "T" and 15th digit code
"A", "B" are not available)
Sensor O-ring
Viton
A
Bolt/nut
A
B
C
D
E
* (1)
Cr-Mo alloy hexagon socket head cap screw/carbon steel nut
Cr-Mo alloy hexagon bolt/nut
NACE bolt/nut (ASTM A193 B7M/A194 2HM)
NACE bolt/nut (ASTM A320 L7M/A194 2HM)
304 stainless steel/304 stainless steel (*1)
In case of tropical use, select stainless bolts and nuts.
5
FHA, FKA...3
OUTLINE DIAGRAM (Unit:mm)
Vent/drain plug
(When the vent/drain plug attatched on
the upper side of the detector)
Zero/span ADJ. screw
In case of 4th
digit code
“S,V,W,X“
Mtg. Pipe
JIS 50A (2")
“A“
Press. conn.
Up
70
50
126.5
110
43.5
ø80
104
Fastener
(In case of 10th
digit code “B,C,M,N“)
88
Down
“B“
Conduit conn.
38
30
With field ind.
(option)
224
4 Holes
9 dia.
Vent/drain plug
Cable gland (option)
see note
(27)
ø80
71
Detail “A“
(press conn.)
Detail “C“
DETAIL “B“
(Conduit conn.)
ø18.5
ø13
ø 15
H
2.5
Oval flange
screw
see table1 1
17
8
E
41.3
252
“C“
Conduit conn.
F
51
Earth terminal
(both side )
see table1
U - Bolt M8
58
Side vent
(option)
2-M8 × 12
ø7
D
See table 1
see table 1
27
70
CONNECTION
DIAGRAM
+
–
50
4th digit
code
120
CK+ CK–
+ –
G 1/2
Conduit conn.
D
E
F
Press. conn.
H
S
G1/2
T
1/2
16 5
–14NPT
1/4–18NPT
V
Pg13.5
1/4–18NPT
W
M20 × 1.5 16 5
X
Pg13.5
17 8
8
8
4.5
4.5
Rc1/4
1/4–18NPT
1/4–18NPT
Oval flange
screw
7/16-20UNF
Screw depth13
7/16-20UNF
Screw depth13
M10
Screw depth13
7M10
Screw depth13
7/16-20UNF
Screw depth13
Earth
terminal
M4
No. 8-32UNC
M4
M4
M4
Table 1
S
T
H
A V 0
F
K
W
X
Note1) : Cable gland is supplied in case of flamproof packing type.
ø11 cable is suitable.
Head office
11-2 Osaki 1-chome, Shinagawa-ku, Tokyo, 141-0032 Japan
Phone: 81-3-5435-7111
http://www.fujielectric.co.jp/eng/sg/KEISOKU/welcome.htm
V
H 3
M
T
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, 6189
Information in this catalog is subject to change without notice.
Printed in Japan