FCX – AX SERIES

DIFFERENTIAL PRESSURE TRANSMITTER

SMALL FLANGE REMOTE SEAL TYPE

Date

DATA SHEET

Mar. 10, 1999

SPECIFICATIONS

FEATURES

Up tp

flange rating

The FCX –AX Series small flange remote seal type

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.

EDSX6-103

1.

Directly connectable to 1-1/2in and 2in flanges

The transmitter is connectable to 1-1/2in and 2in pipes

without a reducer.

2.

Flow measurement without impulse piping

1/2in and 3/4in flange size is also available. This differ-

ential pressure transmitter allows connection to 1/2in

and 3/4in flanges of a general size for the orifice tap,

which eliminates the need of using a impulse piping.

Problems with the impulse piping, such as clogging, leaks

or corrosion can be solved. In addition, the following

process connection is also available.

Screw connection 1/2-14NPT, 3/4-14NPT, Rc1/2, Rc3/4

3.

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.

4.

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 protocl all that needs to be done is just

replace the module and the transmitter gets upgraded to

the new version.

5.

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.

6.

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

2

-digits LCD meter

– Stainless steel electronics housing

– Wide selection of materials

– High temperature, high vacuum seals

F

X

5

F

X

6

+/–

130

{ +/–

1300 }

+/–

500

{ +/–

5000 }

13

{

130 }

50

{

500 }

3

{ 30}

12.5

{125}

130

{

1300 }

500

{

5000 }

Min.

FHX

FKX

Type

Range limit

[kPa] {m bar}

Span limit [kPa]

(m bar}

Functional specifications

Type:

Model FHX: 4 to 20mA

Model FKX:

4 to 20mA with digital signal

Service:

Liquid, gas, or vapour

Static pressure, span, and range limit:

Max.

FHX/FKX

Static pressure

– Maximum static pressure limit for screw connction

type: 4.2MPa

}

7. 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.)

8. 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.)

9. 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.

FHX, FKX...3