Pressure transmitters with safety functions (85 pages)
Summary of Contents for Fuji Electric FCX-AII-V4 Series
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SERVICE INSTRUCTIONS EDF version: “Non-classified category”, “Category K3A” and “Category K3-AD” TRANSMITTERS SERIES “FCX-AII-V4” DIFFERENTIAL PRESSURE: FKC...4 RELATIVE PRESSURE: FKG...4 ABSOLUTE PRESSURE: FKA...4 LEVEL: FKE...4 WITH SEPARATOR(S): FKD, FKB, FKM...E Fuji Electric France S.A.S. TN4 FCXA2 -EDF-E 2018 Date April...
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CAUTION: Rotation of the whole upper part: The whole upper part (housing + electronics) can be rotated by 90° steps to the left or to the right by removing the 2 socket head cap screws (M6 x 12) If the entire assembly must be turned more than 90°, or if it is not known if the position has already been amended since the delivery by Fuji, you must remove the electronics of the unit and disconnect the flexible ribbon cable connecting the...
INTRODUCTION These transmitters have been designed to meet the standards and regulations in force. This manual must be read carefully before the transmitters are used to familiarise yourself with the installation, the connection processes, the wiring and all the operations for start-up and maintenance. The technical information is detailed in each “Technical Specification”...
EMC COMPLIANCE EMC Directive 2014/30/EU All electronic pressure transmitters models of the FCX series, type FCX-AII are compliant: • with the harmonised standard EN 61326-1 (electrical equipment for measurement, control and laboratory use - Requirements relating to the EMC - Part 1: General requirements). Emission limits: EN 61326-1: Frequency range (MHz) Limits...
CLASSIFICATION OF SAFETY INSTRUCTIONS Prior to any operation, carefully read these safety instructions to ensure your safety and the correct use of the transmitter. • The risks associated with a non-compliance of safety instructions are prioritised as follows: DANGER Risk of death or serious injury if the security measures are not met. Likelihood of injury or damage to tangible property in case of incorrect ATTENTION handling.
IMPORTANT RECOMMENDATIONS Prolonged storage If the transmitter is not mounted quickly after the delivery, it should preferably be left in its packaging and stored under normal temperature and humidity conditions. For the installation, choose a suitable location Choose a location with the minimum of vibration, dirt and corrosive atmosphere.
DESCRIPTION The pressure transmitters of the FCX-AII series measure differential, effective or absolute pressure, and convert it into a directly proportional output signal of 4 to 20 mA. This transmitter can be used for the measurement of flow, fluid level, density or any other application using the principle of differential pressure measurement.
THE CONSTITUENT ELEMENTS Terminal unit Amplifier unit Analog indicator connector Detecting unit Digital indicator connector Process connection Indicator (Digital) (Analog) DISP Vent/drain SPAN ZERO plug Electronics External adjustment unit screw General Designation Description Measuring cell Measures the differential, effective or absolute pressure. Transmitter set Converts the measurement into a 4/20mA signal.
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Indication of operating mode on the digital indicator DISP ZERO Display mode Mode If displayed If not displayed Indication in % Indication in physical size ZERO External zero setting authorised External zero setting impossible DISP Digital display in mode Digital display in linear mode Output signal in mode Output signal in linear mode Generation of a constant current...
Refer to the “technical specification” for all details regarding the process temperature limits of the transmitters. For specific transmitters with static pressures > 420 bar, inquire with Fuji Electric France. Protect the transmitter by a pressure safety element depending on its INDICATION application.
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DANGER • The transmitter is heavy. Handle with caution. • the installation and connection conditions listed must be observed. • Improper handling may cause incorrect operation of the transmitter. • During the installation, ensure that no object likely to cause malfunction or even hazards is located inside the electronic unit.
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FCX-AII transmitters are prohibited. All changes to the FCX transmitters-AII delivered must be carried out in the factory after the return Important of the hardware to Fuji Electric France. DANGER These manipulations must be avoided in explosion-proof areas.
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FCX-IIA transmitters are prohibited. All changes to the FCX transmitters-AII delivered must be carried out in the factory after the return of Important the hardware to Fuji Electric France. DANGER These manipulations must be avoided in explosion-proof areas.
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Important to Fuji Electric France. Any presence of Teflon on the nets is strictly prohibited. The sealing on the nets is performed by Loctite PMUC 5772 PMUC. Loctite PMUC residue on the nets, after the change of the position of the bleed valves, must be eliminated.
Connection mechanism The connection of the pipelines to the transmitter must comply with certain rules to generate a properly precise measurement: (1) The transmitter must be installed below the piping for the steam and liquid mechanisms. (2) The transmitter must be installed above the piping for the gas mechanisms. ATTENTION The choice of the manifolds in the installation is done according to the maximum pressure conditions of the process (the accessories such as manifolds and...
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Connection instructions 1- Measuring gas flow The transmitter must be installed above the pipes. If the temperature of the gas is high, condensate Manifold vessels must be used, as with for steam. Connection piping Isolating valve Piping mechanism Orifice plate Orifice plate 2- Measuring liquid flow The transmitter must be installed below the pipes.
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(1) When connecting the valves or of manifold, take appropriate protective ATTENTION measures to avoid the ingress of foreign bodies in the atmospheric release vents. (2) When measuring low pressures, it is important to take into consideration the following points and to limit the effects as much as possible: •...
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Precautions for connecting to the piping mechanism • For liquids, the connecting pipes of the mechanism toward the transmitter must have a minimum downward slope of 1/10 to avoid gas accumulations. • For gases, the connecting pipes of the mechanism toward the transmitter must have a minimum upward slope of 1/10 to avoid liquid or condensate accumulations.
3.2.2 Effective (FKG) and absolute (FKA) pressure transmitters Remove the protective plug. The connection mechanism is protected by a plastic plug. Do not forget to remove it before the connecting the piping. Be careful not to damage the threads or the support of the seal. Connecting the transmitter to the pipes.
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2- Measurement of liquid pressure Pressure reading connector The transmitter must be installed below the piping. The piping should be installed in such a way that no Piping mechanism gas accumulates in the transmitter. The installation Isolating Connection of a reservoir for collecting gas can be useful. valve piping Venting into atmosphere...
The standard dimensions of the membranes are as follows: DN of the flange Diameter of membrane (mm) DN80 / 3” stainless steel: 73 Quality materials: 89 DN100 / 3” stainless steel: 96 Quality materials: 89 For other types of flanges, consult Fuji Electric. TN4FCXA2 -EDF-E...
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Screw tightening method of the mounting flange. Tighten the screws diagonally and in three passes using the proper tightening torque for these screws, according to the standard of the flange used. Connecting the low pressure side to the piping. The piping can be connected directly to the connection mechanism of the transmitter or by means of an oval flange.
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2- Without reference column Connect the high pressure side of the transmitter to the bottom of the tank and the low pressure side to the take-off pipe from the top of tank. isolating valve The formulae for the calculation of the level: ρ...
96 DN100 / 3” Quality materials: 89 For other types of flanges, consult Fuji Electric. Seal Screw tightening method of the mounting flange. Tighten the screws diagonally and in three passes using the proper tightening torque for these screws, according to the standard of the flange used.
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Connection instructions. (1) Level measurement in an open tank. The low pressure side is at atmospheric pressure. Niveau Maxi ρ The formulae for the calculation of the level: Niveau Mini Zero = ρE + ρ'h' Scale = ρ(E + h) + ρ'h' ρ...
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The specific weight of the filling liquids can be obtained from Fuji Electric. For information, the current values are the following : Filling fluid Density Applications Silicone oil General 0.934 High temperature, high temperature 1.07 and use in vacuum, high temperature and...
96 DN100 / 3” Quality materials: 89 For other types of flanges, consult Fuji Electric. Seal Screw tightening method of the mounting flange. Tighten the screws diagonally and in three passes using the proper tightening torque for these screws, according to the standard of the flange used.
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Connection instructions. Separator (1) Measurement of gas pressure. The pressure intake must be located Venting into in the upper part of the piping and the Isolating valve atmosphere separator above it. Transmitter Pressure reading connector Piping Piping Pressure reading connector (2) Measurement of liquid pressure.
ELECTRICAL CONNECTION If a transmitter is the explosion-proof type in an enclosure, the following DANGER rules must be strictly adhered to for the electrical connection. Bad wiring can cause a risk of explosion, fire and other serious accidents. • Switch off the power before any connection or any electrical manipulation ATTENTION on the transmitter.
4.1 Wiring procedure: Sealing of cable passage The cable passage depends on the order, see the technical specification for different possibilities and dimensions. Avoid the use of a metal tube to protect the cable if the inlet is at the top, INDICATION because this encourages the accumulation of water at the cable inlet of the transmitter, and increases the risk of water getting into the transmitter.
Precautions to be taken during the wiring Two cable entries are available, one of which is closed by a plug. If the open entry is not the desired one, proceed as follows: • Remove the plug, install Teflon tape on its thread to ensure the sealing, and screw it onto the other cable inlet.
4.3 – Earthing Perform the earthing in compliance with the recommendations below. 1- Standard use (without special protection) Several earth terminals are available on the transmitter. They are on the outside of the box next to each cable inlet, and on the inside on the terminal block. A resistance of 100 ohms maximum is recommended for proper earthing.
COMMISSIONING AND STOPPAGE 5.1 Installation: After installation (see Section 6.1) and before starting up the transmitter, please check the points and follow the following procedures. Preparation: (1) Check the sealing of connection mechanism by applying soapy water or equivalent. (2) Check the electrical connection to ensure that no liquid can get into the electronic unit via the cable inlets (see Section 7.1).
5.2 Operating mode (1) Effective (FKG) or absolute (FKA) pressure transmitters: Slowly open the isolation valve to apply the pressure. When the pressure is applied, the transmitter is operational. Open (2) Differential or flow pressure transmitters (FKC): The use of the isolation valves when switching on the differential pressure of the transmitter is shown below: Close the isolation valve on the low...
Slowly open the isolation valve on the LP side. Open Verification of operation Use a local indicator, a multimeter or the FXW (HHC) to check the operation of the transmitter. 5.3 Deactivation Proceed as follows to turn off the service. (1) Effective (FKG) or absolute (FKA) pressure transmitters: Slowly close the isolation valve.
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(2) Differential or flow pressure transmitters (FKC): Slowly close the isolation valve Close on the HP side. Open the by-pass valve. Open Close Slowly close the isolation valve on the LP side. If the transmitter is out of service for a long time, it must be completely INTERDICTION bled to prevent any problem of freezing or corrosion.
ADJUSTMENTS AND SETTINGS To change or adjust the range of measurement, first perform the zero adjustment and then that of the measurement scale using the external adjusting screw (do not use in nuclear power plants) on the LCD indicator (do not use in nuclear power plants) or with the mobile communicator (if the zero adjustment is done after the adjustment of the measurement scale, the point 100% cannot be adjusted correctly).
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6.1.2 Starting up the FXW communicator The minimum version of the FXW must be 7.1 for it to be able to communicate with the transmitter. If an earlier version is being used, please contact Fuiji Electric France for an update. Important •...
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The following table gives the 21 existing configuration menus (No.1 to L) on the FXW mobile communicator version 7.0 minimum (FXW 1-A4). The FXW with a version earlier than 7.0 does not work with the FCX-AII models, and the EEPROM of the device must therefore be updated.
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Menu 1: Tag number on the device The FCX-AII pressure transmitters PUSH MENU KEY intended for use in nuclear power plants are delivered configured Important MENU with an enabled write protection. TAG No 1-1: TAG CHANGE The configuration of the tag number on xxxxxxxxx CHNG FICRA-1234...
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Menu 2: Type of model (TYPE) This configuration menu indicates the codification of the transmitter model. Menu 1 : TAG N° It cannot be modified (read only). The expression that follows, in parentheses, indicates the type of the transmitter and the nature of the transfer function used.
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Menu 4: Physical units (UNIT) SERIAL N The FCX-AII pressure transmitters UNIT intended for use in nuclear power plants are delivered configured Important < INC > < CHNG > with an enabled write protection. CHNG The configuration of the physical units on the 4-1: UNIT CHANGE device must be done before the write protection (NEXT...
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Menu 5: Limitations of the measuring Menu N°4 : range (RANGE LIMIT) UNIT A modification of this value URL (Upper Range limit) is not possible by the user because it is linked to the 5: RANGE LIMIT maximum measurement range that corresponds <...
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Menu 7: Electrical damping (DAMPING) Menu N°6 : RANGE The FCX-AII pressure transmitters intended for use in nuclear power plants are delivered CHNG Important DAMPING 7-1: DAMP CHANGE configured with an enabled 0.3SEC 0.3SEC write protection and electrical damping set <...
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Menu 8: Setting the output Menu 7 signal (OUTPUT MODE) LIN/ (DP) GP, AP, LL (Liquid Level) OUTPUT MODE : OUTPUT MODE The FCX-AII pressure transmitters XMTR:DP XMTR:GP OUT=LIN OUT=LIN intended for use in nuclear power < INC > < CHANGE > <...
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Menu 9: Output signal in the event of defect (BURNOUT EXP.) 8 : OUTPUT MODE The FCX-AII pressure transmitters CHNG 9:BURNOUT 9-1: BURNOUT intended for use in nuclear power NOT USED < 1 > NOT USED (HOLD) < 2 > OVER SCALE plants are delivered configured with <...
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Menu A: Calibration of the measurement range (CALIBRATE) 9 : BURNOUT The FCX-AII pressure transmitters < Zero adjustment > intended for use in nuclear power CALIBRATE A-1: CALIBRATE plants are delivered configured with Important an enabled write protection and < INC > < LRV > <...
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Menu B: Testing the circuit of the output signal / Calibration of the D/A-converter (OUTPUT ADJ) The transmitter has digital electronics. The signals of the measuring cell are processed by a microprocessor and sent to a digital/analogue CALIBRATE (D/A-converter) in the form of digital signal. The latter converts this signal into an analogue signal of 4 to 20 mA.
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Menu C: Display of the measurement value (data) OUTPUT ADJ The measurement values are displayed in the configuration menu “C:DATA”. DATA C-1: DATA The flashing “*” indicates that the transmission XXX. X %FLOW XXXXX kPa of the measurement values to the mobile <...
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Menu E: Operation of the printer D : SELF CHECK (PRINT) With Printer Unit PRINT If the printer is connected, the parameters of the transmitter can be printed in the configuration < INC > < ENT > menu “E:PRINT” (print). If the printer is not Set Year/Month/Date Time (Hour, Minute) connected, “NO CONNECTION”...
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Menu G: Display of the digital indicator (XMTR DISPLAY) YYYYYY=XMTR DISPLAY G : XMTR DISPLAY G : XMTR DISPLAY at 4mA % DISPLAY YYYYYY/ZZZZZZ ZZZZZZ=XMTR DISPLAY X.XX-XXX.XX%YYYY UUUUUUU Note 1 at 20mA G-2 : DISP. CHANGE < INC > < CHANGE > <...
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OUT=SQR at Menu No.8 OUT=LIN at Menu No.8 G-8 : LOW CUT G-8 : LOW CUT POINT=XX.XX%FLOW POINT=XX.XX%FLOW MODE=YYYYYY MODE=YYYYYY <CHANGE><CL> <CL> CHNG Note2) CUT POINT G-9 : POINT CHANGE XX.XX%FLOW CUT MODE are set at Menu No.8 <ENT><CL> YYYYYY=LINEAR or ZERO G-9 : POINT CHANGE XX.XX%FLOW CHNG OK?<ENT/CL>...
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Menu H: Linearisation (LINEARIZE) The linearisation function can be used for level and capacity measurements in a closed LINEARIZE INVALID or open tank. < INC > < CHNG > This function is applicable if the geometry of CHNG the tank does not allow a linear relationship between level and capacity.
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Menu I: Resetting of the measuring range (RERANGE) The FCX-AII pressure transmitters intended for use in nuclear power LINEARIZE Important plants are delivered configured with an enabled write protection. RERANGE The resetting of the measuring range must be done before the write protection is lifted <...
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Menu J: Current saturation value (SATURATE CUR) The FCX-AII pressure transmitters intended for use in nuclear power Menu No.I Important plants are delivered configured with an enabled write protection J: SATURATE CUR J-1: SATURATE CUR < 1 >SAT LO Y.YmA SATURATE LO <...
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K: Write protection (WRITE PROTCT) The FCX-AII pressure transmitters intended for use in nuclear power Menu No.J Important plants are delivered configured with an enabled write protection. WRITE PROTCT WRITE PROTECT A password is required to unlock it. <INC> <CHANGE> CHNG K-1: WRITE PROTCT K-2: WRITE PROTCT...
6.2 Adjustment procedure with the aid of the external screws (Do not use in nuclear power plants) Zero adjustment In nuclear power plants, the zero adjustment may only be done with the aid of the mobile communicator. The point 0 can be adjusted with the external setting screw following the procedure below: (1) Position the cursor of the switch on the ZERO.
6.3 Procedure for adjusting the measuring range Adjustment of the scale In nuclear power plants, the measurement scale may only be adjusted with the aid of the mobile communicator. The measurement scale can be adjusted with the external adjustment screw following the procedure below: (1) Position the switch cursor on SPAN.
6.4 Local adjustment from the digital display In nuclear power plants, all on site modifications of the configuration of the FCX-AII transmitters may only be done with the aid of the mobile communicator. 1. Description If the transmitter is equipped with a numerical indicator, the local adjustment on the FCX transmitter-AII is possible without the use of the FXW mobile communicator.
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2. Transmitter adjustment method The “LOCAL/COMM” switch makes it possible to perform the transmitter setting either locally or remotely with a mobile communicator. In the “COMM” position, the settings are changed with a mobile communicator or with a PC. In the “LOCAL” position, the transmitter settings are changed using the external screws on the electronic unit and following the position of the switch on “Mode”...
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Adjustment of the measuring range Prior to the adjustment of the measuring range, first check the “zero” setting. There is no interference between the zero adjustment and the measuring range. Each type of transmitter has its own maximum measuring range. The measuring range (20mA) can be adjusted with the external screw located on the electronic control unit on the condition that the switch (2 positions) is on “LOCAL”...
MAINTENANCE The transmitter does not require maintenance. Depending on the conditions of use and the process measured, a check of the transmitter's periodic output signal may only be performed by qualified staff (recommended period: 36 months). 7.1 The following checks are recommended by the manufacturer: - Check the sealing of the transmitter and the process connections as often as necessary - Check and possibly clean the parts (according to parts list) in contact with the process to ensure the good chemical resistance of the parts in contact.
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Symptoms Causes Solutions Saturated 1. Incorrect position of the by-pass valve Place the valve in the correct position. output current (beyond 20mA) 2. Process leakage Seal. Check the pipes. 3. Problem with the piping 4. Plugged pipe Unblock the pipes. 5.
To avoid any risk of an accident (explosion, fire, etc), never disconnect the transmitter under voltage. Identification of the defective part Please contact Fuji Electric to analyse the failure and replace the defective parts TN4FCXA2 -EDF-E...
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Replacement of the analogue indicator In nuclear power plants , repairs, modifications or interventions on the sub-assemblies or the internal components of the FCX-IIA transmitters are prohibited. In the event of a fault, the transmitters must be replaced on site by the new equipment. Indicateur analogique Couvercle (1) Remove the cover on the indicator side.
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Replacement of the digital indicator In nuclear power plants , repairs, modifications or interventions on the sub-assemblies or the internal components of the FCX-IIA transmitters are prohibited. In the event of a fault, the transmitters must be replaced on site by the new equipment. Carte de montage pour indicateur digital Indicateur digital...
7.4 Settings that must be carried out after replacement of the amplifier or the cell Settings After complete assembly of the transmitter, follow the following steps to adjust and calibrate the device. This must be done with the FXW mobile communicator. (1) After replacement of the amplifier Step settings...
SURGE PROTECTOR An optional surge protector can be used to protect the transmitter against the accidental surges that may occur on the power supply. This surge protector is mounted in the terminal block of the transmitter. In this case, a label “With Arrester” is pasted on the terminal block. Installation If power surges are likely to appear on the 4/20 mA loop, for example because of the lightning, it is advisable to also install a surge protector at the end of the line, at the side where it is used...
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Maintenance Checking the surge protector: Measure the output current of the transmitter on the 4/20mA loop on the one hand, and between terminals CK+ and CK- on the other hand. If the measured values are the same, the surge protector is in good condition. If the measured values differ by more than 0.1% (0.016mA), the surge protector is defective.
CALIBRATION Preparation Remove the transmitter for the calibration in the workshop. Provide the following equipment: • Pressure generator with a precision better than 0.05%. - See pressure to be generated below. • Electrical power supply 24 VDC. • Load resistance with a precision better than 0.01%. •...
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Calibration procedure (1) Perform the connections according to the diagram below. Digital voltmeter Power supply Load resistance Standard resistance To establish a circuit in conformity with a correct communication during the INDICATION use of the FXW, a load resistance of 250Ω minimum is necessary. (2) Calibration of the digital converter D/A: (Refer to pages 32 and 33) This menu must be used to modify the corresponding pressure values at zero and at 100%...
INITIAL STATE OF THE SETTING PARAMETERS The electrical damping (time constant), the zero setting function (external screw) and that of the measurement range, the transfer function, the display of the scale and the output signal in the event of defect are set at the factory according to the table. Each parameter can be changed with the FXW mobile communicator (HHC).
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Fuji Electric is not responsible for any errors in catalogues, brochures or various print media. Fuji Electric reserves the right to modify its products without prior notice.This also applies to the products ordered, if the changes do not alter the specifications...