EDSX5-71 Datasheet, PDF (1/6 Pages) Fuji Electric – FCX – AX SERIES ABSOLUTE PRESSURE TRANSMITTER

FCX – AX SERIES _{ABSOLUTE PRESSURE TRANSMITTER}
DATA SHEET
FHA, FKA...3
The FCX – AX absolute pressure transmitter accurately
measures absolute pressure and transmits a proportional 4
to 20mA signal.
The transmitter utilizes a unique micromachined capaci-
tance silicon sensor with state-of-the-art microprocessor
tech-nology to provide exceptional performance and func-
tionality.
FEATURES
1. High accuracy
0.2% accuracy for all calibrated spans is a standard fea-
ture 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 calibra-
tion 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 ter-
minal side
— Full range of hazardous area approvals
— Built-in RFI filter and lightning arrester
—
4
1
2
-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: 4 to 20mA
Model FKA: 4 to 20mA with digital signal
Service:
Liquid, gas, or vapour
Span, range, and overrange limit:
Type
Span limit
[kPa abs] {bar abs}
Min.
Max.
Range limit
[kPa abs]
{bar abs}
FHA
F A 01
F A 02
F A 03
F A 04
1.6
{0.016}
13
{0.13}
50
{0.5}
300
{3}
FKA
1.6
{0.016}
1.6
{0.016}
5
{0.05}
30
{0.3}
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}
Overrange
limit
[MPa]
{bar}
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=101.9716mmH O abs=
2
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 super-
imposed 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 op-
tional arrester.
EDSX5-71
Date Mar. 15, 1999