EDSX6-101 Datasheet, PDF (1/8 Pages) Fuji Electric – FCX – AX SERIES REMOTE SEAL TYPE DIFFERENTIAL PRESSURE TRANSMITTER

FCX – AX SERIES REMOTE SEAL TYPE
DIFFERENTIAL PRESSURE TRANSMITTER
DATA SHEET
FHD, FKD...3
The FCX – AX differential pressure transmitter accurately
measures differential pressure, liquid level or gauge pressure
and transmits a proportional 4 to 20mA signal. The trans-
mitter utilizes a unique micromachined capacitance silicon
sensor with state-of-the-art microprocessor technology to
provide exceptional performance and functionality. Totally
welded construction of the seals assures excellent reliability
in high temperature and highly corrosive process conditions.
FEATURES
1. High accuracy
0.2% accuracy for all calibrated spans is a standard
feature for all DP models covering 3.2kPa{32mbar} range
to 500kPa{5bar} high differential pressure range. 0.1%
accuracy is available as option. Fuji's micro-capacitance
silicon sensor assures this accuracy for all elevated or
suppressed calibration ranges without additional
adjustment.
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 compatible
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
terminal 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 seals
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
calibration without reference pressure is at equal level
as wet calibration.
SPECIFICATIONS
Functional specifications
Type:
Model FHD: 4 to 20mA
Model FKD: 4 to 20mA with digital signal
Service:
Liquid, gas, or vapour
Static pressure, span, and range limit:
Type
FD
FD
FD
Static pressure
Span limit [kPa]
(m bar}
Min.
Max.
Range limit
[kPa] {m bar}
FHD FKD FHD/FKD
}3
{
5 Up tp
flange rating {
3.2 0.32
32 } { 3.2 } {
13
1.3
130 } { 13 } {
32
320 }
130
1300 }
+/–
{ +/–
+/–
{ +/–
32
320 }
130
1300 }
6
50
5
500 +/– 500
{ 500 } { 50 } { 5000 } { +/– 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: Atmospheric pressure
– 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=101.976mmH₂O=4.01463H₂O
Overrage limit: To maximum static pressure limit
Output signal:
Model FHD: 4 to 20mA DC 2-wire, linear signal
Model FKD: 4 to 20mA DC (linear or square root) with
digital signal superimposed on the 4 to
20mA signal
EDSX6-101
Date Mar. 15, 1999