Fuji
Level Transmitters
  Features
1. High accuracy
0.2% accuracy for all calibrated spans is a standard feature
for all models covering 0.32kPa {3.2mbar} 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. Fuji/HART® bilingual communications protocol and
FOUNDATION™ fieldbus and Profibus™ compatibility
FCX–A2 series transmitter offers bilingual communications
to speak both Fuji proprietary protocol and HART®.
Any HART® compatible devices can communicate with
FCX–A2.
Further, by upgrading electronics FOUNDATION™
fieldbus and Profibus™ are also available.
4. Application flexibility
Various options that render the FCX–A2 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
– 5-digit LCD meter with engineering unit
– Stainless steel electronics housing
– Wide selection of materials
– High temperature, high vacuum service.
5. Programmable output Linearization Function
Output signal can be freely programmable.
(Up to 14 compensated points at approximation.)
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.
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.
     
Technical Specification  
  • Functional specifications
    Service: Liquid, gas, or vapour
    Static pressure, span, and range limit:
  • – 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
    Overrange limit: To maximum static pressure limit
    Output signal: 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.
  • Zero/span adjustment:
    Zero and span are adjustable from the
    HHC(1). Zero and span are also adjustable
    externally from the adjustment screw
    (Span adjustment is not available with 9th
    digit code “L, P, Q, S”).
    Damping: Adjustable from HHC or local adjustment
    unit with LCD display.
    The time constant is adjustable between
    0.12 to 32 seconds.
    Zero elevation/suppression:
    – 100% to + 100% of URL
    Normal/reverse action:
    Selectable from HHC(1)
    Indication: Analog indicator or 5-digit LCD meter, as
    specified.
    Burnout direction: Selectable from HHC(1)
    If self-diagnostic detect transmitter failure,
    the analog signal will be driven to either
    “Output Hold”, “Output Overscale”
    or “Output Underscale” modes.
    “Output Hold”:
    Output signal is hold as the value just before
    failure happens.
    “Output Overscale”:
    Adjustable within the range 20.8mA to
    21.6mA from HHC(1)
    Programmable output linearization function:
    Output signal can be characterized with
    “14 points linear approximation function”
    from HHC(1).
    EMC Conformity: EN61326