EDSX7-57 Datasheet, PDF (1/10 Pages) Fuji Electric – FCX – AX SERIES LEVEL TRANSMITTER

FCX – AX SERIES _{LEVEL TRANSMITTER}
DATA SHEET
FHE, FKE...3
The FCX–AX level transmitter accurately measures liquid
level 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 functional-
ity.
FEATURES
1. High accuracy
0.2% accuracy for all calibrated spans is a standard fea-
ture for all models covering 3.2kPa{32mbar} range to
500kPa{5bar} high differential pressure range. 0.1% ac-
curacy is available as option. Fuji's micro-capacitance
silicon sensor assures this accuracy for all elevated or
suppressed calibration ranges without additional adjust-
ment.
2. Minimum environmental influence
The "Advanced Floating Cell" design which protects the
pressure sensor against changes in temperature, static
pressure, 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 compat-
ible devices can communicate with FCX–AX series trans-
mitters.
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
— High temperature, high vacuum service.
6. Programmable output Linearization Function
In addition to Linear and Square Root, output signal can
be freely programmable.
(Up to 14 compensated points at approximation.)
(Available for amplifier unit from version 24 and FXW(HHC) version
5.3.)
7. 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.)
8. 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 cali-
bration without reference pressure is at equal level as
wet calibration.
SPECIFICATIONS
Functional specifications
Type:
Model FHE: 4 to 20mA
Model FKE: 4 to 20mA with digital signal
Service:
Liquid, gas, or vapour
Static pressure, span, and range limit:
Type
Static
pressure
FE
FE
FE
3
 Up to
⁵ flange
rating
₆
Span limit [kPa] {m bar}
Min.
Max.
FHE
3.2
{32}
13
{130}
50
{500}
FKE
0.32
{3.2}
1.3
{13}
5
{50}
FHE/FKE
32
{320}
130
{1300}
500
{5000}
Range limit
[kPa] {m bar}
+/–
{ +/–
+/–
{ +/–
+/–
{ +/–
32
320}
130
1300}
500
5000}
Remark: To minimize environmental influence, span should be greater
than 1/40 of the max. span in most applications.
— Lower limit of static pressure (vacuum limit) ;
Silicone fill sensor: See Fig . 1
Fluorinated fill sensor: 66kPa abs (500mmHg abs) at
temperature below 60 °C.
— The maximum span of each sensor can be converted to
different units using factors as below.
1MPa=10³kPa=10bar=10.19716kgf/cm²=145.0377psi
1kPa=10mbar=101.9716mmH₂O=4.01463inH₂O
EDSX7-57
Date Mar. 15, 1999