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YOKOGAWA DPharp EJA115E User Manual
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YOKOGAWA DPharp EJA115E User Manual

YOKOGAWA DPharp EJA115E User Manual

Low flow transmitter
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User's
Manual
Low Flow Transmitter
EJX115A and EJA115E
IM 01C25K01-01E
IM 01C25K01-01E
11th Edition

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Summary of Contents for YOKOGAWA DPharp EJA115E

  • Page 1 User’s Manual Low Flow Transmitter EJX115A and EJA115E IM 01C25K01-01E IM 01C25K01-01E 11th Edition...
  • Page 2 4.3 Changing the manifold assembly ..............4-2 Swapping the High/Low-pressure Side Connection ........4-2 Rotating Transmitter Section ................4-3 Changing the Direction of Integral Indicator ..........4-3 11th Edition: Apr. 2020 (YK) IM 01C25K01-01E All Rights Reserved, Copyright © 2008, Yokogawa Electric Corporation...
  • Page 3 Toc-2 Installing Impulse Piping ................. 5-1 Process Piping Installation Precautions ............5-1 5.1.1 Connecting Process Piping to the Transmitter ........5-1 5.1.2 Routing the Process Piping ............... 5-1 Process Piping Connection Examples ............5-2 Wiring ......................6-1 Wiring Precautions ................... 6-1 Selecting the Wiring Materials .................
  • Page 4 Functional Safety Manual (Document No.: TI 01C25A05-01EN or TI 01C25A05-21EN for option code SLT) and follow the instructions and procedures described there.The document can be downloaded from the website of Yokogawa. (Website address: https://www.yokogawa.com/solutions/products-platforms/field-instruments/) In order to satisfy the requirement of Safety Instrumented System, executing parameters setting is required.
  • Page 5 TI 01C25A05-01EN or TI 01C25A05-21EN for option code SLT) and follow the instructions and NOTE procedures described there.The document can be downloaded from the website of Yokogawa. This manual describes the hardware (Website address: configurations of the transmitters listed in below. https://www.yokogawa.com/solutions/products-...
  • Page 6 Yokogawa’s injury. It may also be used to alert against unsafe written permission. practices. • Yokogawa makes no warranty of any kind with regard to this manual, including, but not limited IMPORTANT to, implied warranty of merchantability and fitness for a particular purpose.
  • Page 7 WARNING WARNING • The instrument must be installed by an engineer or technician who has an expert • Yokogawa will not be liable for malfunctions knowledge of this instrument. Operators are or damage resulting from any modification not permitted to carry out wiring unless they made to this instrument by the customer.
  • Page 8 (h) Authorized Representative in EEA • In relation to the CE Marking, The authorised representative for this product in the EEA (European Economic Area) is: Yokogawa Europe B.V. Euroweg 2, 3825 HD Amersfoort,The Netherlands (i) Control of Pollution Caused by the Product This is an explanation for the product based on “Control of Pollution caused by Electronic Information Products”...
  • Page 9 - Use of the product in question in a location not conforming to the standards specified by Yokogawa, or due to improper maintenance of the installation location. - Failure or damage due to modification or repair by any party except Yokogawa or an approved representative of Yokogawa. - Malfunction or damage from improper relocation of the product in question after delivery.
  • Page 10 <2. Handling Cautions> Handling Cautions 2.1 Model and Specifications This chapter provides important information on how to handle the transmitter. Read this carefully before Check using the transmitter. The model name and specifications are written on The transmitters are thoroughly tested at the the name plate attached to the case. factory before shipment.
  • Page 11 <2. Handling Cautions> Storage (b) Ambient Atmosphere Do not install the transmitter in a corrosive The following precautions must be observed when atmosphere. If this cannot be avoided, there storing the instrument, especially for a long period. must be adequate ventilation as well as measures to prevent the leaking of rain water (a) Select a storage area which meets the following and the presence of standing water in the...
  • Page 12 <2. Handling Cautions> 2.6 Waterproofing of Cable • Insulation Resistance Test Conduit Connections 1) Short-circuit the + and – SUPPLY terminals in the terminal box. In case of 1 to 5 V output, Apply a non-hardening sealant to the threads short-circuit the SUPPLY+, SUPPLY – and A to waterproof the transmitter cable conduit (VOUT +) terminals.
  • Page 13 EJA-E transmitters upon shipment from the construction may be compromised and the factory are certified by the applicable agency in instrument may be hazardous to operate. Please combination with those transmitters. The plugs contact Yokogawa before making any repair or which are marked with the symbols “◊ Ex” on modification to an instrument. their surfaces are certified only in combination with the EJX/EJA-E series transmitters.
  • Page 14 In case Nonincendive Field Wiring Concept is used for the interconnection, FM-approved Associated Nonincendive Field Wiring Apparatus, which meets the Only personnel authorized by Yokogawa above conditions, must be used as the General Purpose Equipment. The General Purpose Equipment connected to the Associated Apparatus must not Electric Corporation can repair the equipment.
  • Page 15 CAN/CSA-E60079-11:02 location. CAN/CSA-E60079-15:02 CAN/CSA-C22.2 No.60529 Note 4. Maintenance and Repair ANSI/ISA-12.27.01 • The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Factory Mutual Explosionproof Approval. IM 01C25K01-01E...
  • Page 16 • Intrinsically Safe for Class I, Division 1, replacement by other than authorized Groups A, B, C & D, Class II, Division 1, representative of Yokogawa Electric Groups E, F & G, Class III, Division 1 Corporation and Yokogawa Corporation •...
  • Page 17 <2. Handling Cautions> • Enclosure: Type 4X • All wiring shall comply with local installation • Temperature Code: T6...T4 requirements and local electrical code. • Ex d IIC T6...T4 • In hazardous locations, the cable entry • Enclosure: IP66/IP67 devices shall be of a certified flameproof •...
  • Page 18 • Ambient Temperature for EPL Db: replacement by other than authorized –30* to 60°C representative of Yokogawa Electric * –15°C when /HE is specified. Corporation and Yokogawa Corporation of • Process Temperature (Tp.): 120°C max. America is prohibited and will void Canadian • Maximum Surface Temperature for EPL Db: Standards Explosionproof Certification.
  • Page 19 2-10 <2. Handling Cautions> Note 5. Special Conditions for Safe Use • Ambient Temperature for gas-proof: –50 to 75°C (T6), –50 to 80°C (T5), and WARNING –50 to 75°C (T4) • Process Temperature (Tp.) for gas-proof: • When the enclosure of the Pressure –50 to 85°C (T6), –50 to 100°C (T5), and Transmitter is made of aluminum, if it –50 to 120°C (T4)
  • Page 20 Intrinsically Safe. Ex ia, or Ex ic for use in the voltage of power supply terminal is not hazardous area. supplied. • Only personnel authorized by Yokogawa Note 1. For the installation of this transmitter, Electric Corporation can repair the once a particular type of protection is...
  • Page 21 Note 3. Maintenance and Repair • The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void ATEX intrinsically safe. [Control drawing] Hazardous Area Nonhazardous Area...
  • Page 22 Ex ic IIC T4 Gc IP66 Tamb -30(-15) TO 60°C The instrument modification or parts replacement MAX. PROCESS TEMP. 120°C Ui=30V, Ci=27.6nF, Li=0µH by other than an authorized Representative of Yokogawa Electric Corporation is prohibited and WARNING will void the certification. POTENTIAL ELECTROSTATIC CHARGING HAZARD - SEE USER’S MANUAL F0209.ai MODEL: Specified model code.
  • Page 23 /SU21 can be selected the type of replacement by other than authorized protection (IECEx Intrinsically Safe Ex ia, Ex ic representative of Yokogawa Electric or flameproof) for use in hazardous locations. Corporation is prohibited and will void IECEx Note 1. For the installation of this transmitter, certification.
  • Page 24 • The instrument modification or parts 9 to 28 V dc, 27 mW (Low Power type) replacement by other than authorized • Output Signal: 4 to 20 mA dc representative of Yokogawa Electric 15 mA (F Fieldbus and OUNDATION Corporation is prohibited and will void IECEx PROFIBUS PA type) certification.
  • Page 25 Please use this instrument in the industrial Corporation is prohibited and will void IECEx environment only. Certification. • To meet EMC regulations, Yokogawa • Electrical Connection recommends that customers run signal A mark indicating the electrical connection wiring through metal conduits or use...
  • Page 26 2-17 <2. Handling Cautions> 2.11 Pressure Equipment 2.13 Safety Requirement Directive (PED) Standards Applicable standard: EN 61010-1, C22.2 No.61010-1 (1) General (1) Pollution Degree 2 EJX/EJA-E Series pressure transmitters are categorized as piping under the pressure "Pollution degree" describes the degree to accessories section of directive 2014/68/EU, which a solid, liquid, or gas which deteriorates which corresponds to Article 4, Paragraph 3 of...
  • Page 27 <3. Component Names> Component Names Vertical impulse piping type Process connection Pressure-detector section Process connector Manifold Terminal box cover Horizontal impulse piping type Cover flange External indicator conduit connection (Note 1) Conduit connection Zero- adjustment screw (Note 2) Push button (Note 1) Slide switch (See section 7.7)
  • Page 28 <4. Installation> Installation Precautions Vertical pipe mounting Before installing the transmitter, read the cautionary notes in section 2.4, “Selecting the Installation Location.” For additional informations and limitations according to the selected model, suffix Transmitter and option codes, please find information in each mounting bolt General Specifications sheet. 50 mm(2-inch) pipe IMPORTANT U-bolt U-bolt nut • When welding piping during construction, take care not to allow welding currents to Mounting bracket flow through the transmitter.
  • Page 29 <4. Installation> Vertical pipe mounting Vertical impulse piping type (Process connector downside) Bolt Transmitter mounting bolt Manifold Mounting bracket U-bolt nut Process connector gasket U-bolt 50 mm(2-inch) pipe Vent/Drain plug Vertical pipe mounting Horizontal impulse piping type (Process connector upside) Note: For a horizontal impulse piping type, moving the Manifold Assembly from...
  • Page 30 <4. Installation> 3) Tighten the two setscrews to fix the pressure- Vertical impulse piping type detector section and transmitter section together (at a torque of 1.5 N·m). Pressure-detector section Stopper Reposition the manifold assembly and drain (vent) plugs to the opposite side as described in subsection 4.3. After rotating 180°...
  • Page 31 <5. Installing Impulse Piping> Installing Impulse Piping Process Piping Installation (2) Tightening the Process Connector Mounting Bolts Precautions The transmitter is shipped with the process The manifold contains a small-bore orifice. For connector mounting bolts only loosely tightened. the transmitter of a high pressure connection right After connecting the process piping, tighten these side, the orifice is placed facing such a direction bolts uniformly to prevent leaks with a torque of 39...
  • Page 32 <5. Installing Impulse Piping> (3) Preventing Freezing • A variety of process piping-mounted stop valves are available according to the type If there is any risk that the process fluid in the of connection (flanged, screwed, welded), transmitter pressure-sensing assembly could freeze construction (globe, gate, or ball valve), or solidify, use a steam jacket or heater to maintain temperature and pressure.
  • Page 33 <6. Wiring> Wiring Wiring Precautions Connections of External Wiring to Terminal Box IMPORTANT ● Terminal Configuration • Lay wiring as far as possible from electrical noise sources such as large capacity transformers, motors, and power supplies. • Remove the electrical connection dust cap before wiring.
  • Page 34 <6. Wiring> 6.3.1 Power Supply Wiring Connection Connect the BT200 or HART Communicator to the SUPPLY + and – terminals. (Use hooks.) IMPORTANT Transmitter terminal box Power supply Connecting with the commercial AC power supply will damage the device. Be sure to use –...
  • Page 35 <6. Wiring> 6.3.5 Status Output Connection (2) 4 to 20 mA output, Intrinsically Safe Type With the intrinsically safe type, a safety barrier must When option code /AL is specified, connect the be included in the loop. external wiring as shown in Figure 6.5. To configure and activate the process alarm Hazardous Location Nonhazardous Location function and status output, it is necessary to set Transmitter terminal box...
  • Page 36 <6. Wiring> ■ Four wire connection (2) Flameproof Type Fasten the negative side wiring of both power Wire cables through a flameproof packing adapter, supply and signal line to the SUPPLY - terminal. or use a flameproof metal conduit. Hazardous Location Nonhazardous Location  Wiring cable through flameproof packing adapter. Transmitter terminal box Distributor (Power supply unit) Flameproof packing adapter Flexible metal conduit...
  • Page 37 <6. Wiring> Grounding Grounding is always required for the proper operation of transmitters. Follow the domestic electrical requirements as regulated in each country. For a transmitter with a built-in lightning protector, grounding should satisfy ground resistance of 10Ω or less. Ground terminals are located on the inside and outside of the terminal box.
  • Page 38 <7. Operation> Operation Preparation for Starting Stop valve(downstream side) Operation Manifold Stop valve The Model EJ115 low flow transmitter (upstream side) measures the flow rates of liquids and gases. This section describes the operation procedure for the EJ115 as shown in Figure 7.1 (vertical impulse piping type, high-pressure connection: right side) when measuring a liquid flow rate.
  • Page 39 <7. Operation> Using the integral indicator  Confirming that Transmitter is Operating Properly • If the wiring system is faulty, the display stays blank. Using the BT200 • If the transmitter is faulty, an error code is displayed. IMPORTANT • Analog output may change temporally in connecting with BRAIN terminal due to an initial current flowed to it. To prevent communication signal affecting the upper...
  • Page 40 <7. Operation> Zero Point Adjustment  Adjusting Zero Point for Differential Pressure Transmitters After completing preparations for operating the Before adjusting zero point, make sure that the transmitter, adjust the zero point. equalizing valve is open. Zero point adjustment can be done by turning the transmitter’s zero-adjustment screw or by using the communicator.
  • Page 41 <7. Operation> Starting Operation Shutting Down Operation After completing the zero point adjustment, follow Shut down the transmitter operation as follows. the procedure below to start operation. 1) Turn off the power. 1) Open the stop valve on the upstream side. 2) Close the stop valves on the up and 2) Gradually open the stop valve on the downstream sides.
  • Page 42 <7. Operation> Transmitter Measurement (b) Obtain a differential pressure from the above equivalent water or air flow using the Range (Determining nomograph shown in Figure 7.5.1 or 7.5.2. In Differential Pressure Range) this procedure, multiply Qw or Qo by 1000/60 to convert the flow unit into liter/min. The following describes the procedure for (c) Select an orifice bore, taking into considerations calculating the differential pressure range and the pressure loss, etc.
  • Page 43 <7. Operation> 7.5.2 Example of Calculation Fluid: gas (Nitrogen gas) Flow range: 0 to 25 Nm (flow rate at 0°C, 1 atm) Normal flow rate: 18 Nm Specific density: 1.251 kg/Nm (specific density at 0°C, 1 atm) Temperature: 30°C Pressure: 100 kPa Viscosity: 0.018 mPa·s From Equation (2), air equivalent volumetric flow Qo is: 273.15 + 30 = 0.5356 × 25 1.251 × 101.325 + 100 = 18.38 Nm /h = 306.3 Nl/min...
  • Page 44 <7. Operation> 1000 Differential Pressure 0.508 0.864 1.511 2.527 4.039 6.350 (kPa) 1000 Equivalent air flow(liter/min at 0°C, 1 atm) F0706.ai Figure 7.5.2 Relationship between Equivalent Air Flow and Differential Pressure 1.00 0.95 Correction Factor (Kaf/Ka) 0.90 A: F9340NL (Ø0.508) 0.85 B: F9340NM (Ø0.864) C: F9340NN (Ø1.511) D: F9340NP (Ø2.527) E: F9340NQ (Ø4.039) 0.80 F: F9340NR (Ø6.350)
  • Page 45 <7. Operation> Venting or Draining 7.6.1 Draining Condensate Transmitter Pressure- 1) Gradually open the drain screw or drain plug and drain the transmitter pressure-detector detector Section section. (See Figure 7.6.1.) Since this transmitter is designed to be self- 2) When all accumulated liquid is completely draining and self-venting with vertical impulse removed, close the drain screw or drain plug.
  • Page 46 <7. Operation> Local Parameter Setting 7.7.1 Local Parameter Setting (LPS) Overview WARNING Parameter configuration by the zero-adjustment screw and push button (integral indicator code The local push button on the integral indicator E) offers easy and quick setup for parameters must not be used in a hazardous area. When of Loop test, Tag number, Unit, LRV, URV, it is necessary to use the push button, operate Damping,Output mode (linear/square root), Display...
  • Page 47 7-10 <7. Operation> screw Process Zero adjustment Measurement Display push Activate LPS mode push 1. Loop Test Select Output Current Run/Cancel 2. Tag Number Edit Tag number Save/Cancel the value push 3. Press Unit Select Press unit Save/Cancel the value 4.
  • Page 48 7-11 <7. Operation> 7.7.2 Activating Local Parameter Setting Press the push button on the integral indicator to activate the Local Parameter Setting mode. The transmitter will exit automatically from the Local Parameter Setting mode if no operation is carried out for 10 minutes. 7.7.3 Parameter Setting Review Current setting value for the below parameters are shown sequentially by each press of the push button.
  • Page 49 7-12 <7. Operation> 7.7.4 Loop Test Configuration Loop test configuration can be changed as below. Output current value (4 mA, 12 mA or 20 mA) for Loop test can be selected by turning the zero-adjustment screw. Run ?/ Cancel ? Blinking Blinking [Available loop test] Select by the push button 4mA: 0% output 12mA: 50% output 20mA: 100% output screw Select by the push button or turning the push extemal adjustment...
  • Page 50 7-13 <7. Operation> 7.7.7 Pressure LRV/URV Configuration Pressure LRV and URV can be set. The number for each digit is changed by turning the zero-adjustment screw and set by pressing the push button. Please refer to 7.7.8 Damping Time Constant Configuration for how to change the numerical value. When the setting is out of the limit, an alarm will be generated. 7.7.8 Damping Time Constant Configuration The damping time constant for the amplifier assembly can be set. Quick Response Parameter is automatically set to ON when the damping time constant is set to less than 0.5 seconds.
  • Page 51 7-14 <7. Operation> 7.7.11 Re-range by applying actual Note 1: Wait until the pressure inside the pressure-detector section has stabilized before proceeding to the next pressure (LRV/URV). step. Note 2: If the pressure applied to the transmitter exceeds the This feature allows the lower and upper range previous LRV (or URV), the integral indicator may values to be setup with the actual input applied.
  • Page 52 7-15 <7. Operation> 7.7.14 Abort Configuration 7.7.15 Local Parameter Setting Lock To disable parameter changes by the Local 7.7.14.1 Abort Configuration (Menu) Parameter Setting there are three different ways. Hold down the push button for over 2 seconds to Locked features exit the Local Parameter Setting mode. Communication Parameter •...
  • Page 53 <8. Maintenance> Maintenance Overview 8.3 Calibration Use the procedure below to check instrument WARNING operation and accuracy during periodic maintenance or troubleshooting. Since the accumulated process fluid may be 1) Connect the instruments as shown in figure 8.1 toxic or otherwise harmful, take appropriate care and warm up the instruments for at least five to avoid contact with the body or inhalation of minutes.
  • Page 54 <8. Maintenance> Table 8.1 Instruments Required for Calibration Name Yokogawa-recommended Instrument Remarks Power supply Model SDBT or SDBS distributor 4 to 20 mA DC signal Load resistor Model 2792 standard resistor [250 Ω ±0.005%, 3 W] Load adjustment resistor [100 Ω ±1%, 1 W] Voltmeter Model 2501 A digital multimeter Accuracy (10V DC range): ±(0.002% of rdg + 1 dgt) Digital Model MT220 precision digital manometer Select a manometer having...
  • Page 55 Slotted adding an integral indicator to a transmitter. If screwdriver such modification is absolutely required, contact Allen wrenches JIS B4648 Yokogawa. One each, nominal 3, 4 and 2.5 mm Allen wrenches This subsection describes the procedure for Wrench Width across flats, 17 mm Torque wrench replacing an integral indicator. (See figure 8.3)
  • Page 56 <8. Maintenance> ■ Mounting the CPU Assembly Output terminal cable 1) Connect the flat cable (with white connector) between the CPU assembly and the capsule. 2) Connect the output terminal cable (with brown Press connector). forward NOTE Slide switch Integral Make certain that the cables do not get pinched Zero- Boss indicator adjustment...
  • Page 57 <8. Maintenance> 8.4.4 Cleaning Manifold Assembly and 4) After completing reassembly, a leak test Replacing Orifice must be performed to verify that there are no pressure leaks. This subsection describes the procedures for cleaning the manifold assembly and replacing the NOTE orifice to change flow rate. (See Figure 8.5.) Exercise care as follows when reassembling the ■ Removing the Manifold Assembly manifold assembly.
  • Page 58 7) Remove the capsule assembly. one of a different measurement range, contact 8) Clean the capsule assembly or replace with a Yokogawa. new one. The user is permitted, however, to replace a ■ Reassembling the Capsule Assembly capsule assembly with another of the same measurement range.
  • Page 59 If any abnormality appears in the measured values, Isolate problem in use the troubleshooting flow chart below to isolate measurement system. and remedy the problem. Since some problems have complex causes, these flow charts may not identify all. If you have difficulty isolating or correcting a problem, contact Yokogawa service personnel. Does problem exist in receiving instrument? Inspect receiver. Environmental conditions Transmitter itself Check/correct Check transmitter.
  • Page 60 Is there any pressure leak? Adjust the zero point. Fix pressure leaks, paying particular attention to connections for impulse piping,pressure-detector section, etc. Contact Yokogawa service personnel. Is there continuity through the transmitter loop wiring? F0809.ai Do the loop numbers...
  • Page 61 Refer to Section 8.2 when selecting instruments for calibration. Is output adjusted correctly? Adjust the output. Is orifice clogged with dust, etc? Refer to Subsection 8.4.4 to clean the manifold assembly. Contact Yokogawa service personnel. F0810.ai IM 01C25K01-01E...
  • Page 62 8-10 <8. Maintenance> 8.5.3 Alarms and Countermeasures Table 8.1 Alarm Message Summary Output Operation Indicator Cause Countermeasure during Error None AL. 01 Sensor problem. Outputs the signal (Hold, High, or Replace capsule when error CAP. ERR Low) set with parameter. keeps appearing even after Capsule temperature sensor restart.
  • Page 63 <9. General Specifications> General Specifications Please refer to the following General Specifications list for the specifications, model, suffix and option codes, and external dimensions of each product. The General Specifications can be downloaded from the website of Yokogawa. Website address: https://www.yokogawa.com/solutions/products-platforms/field-instruments/ ■ General Specifications List Model Document Title Document No. EJX110A Differential Pressure Transmitter GS 01C25B01-01EN EJX120A Differential Pressure Transmitter GS 01C25B03-01EN EJX130A Differential Pressure Transmiter GS 01C25B04-01EN EJX210A Flange Mounted Differential Pressure Transmitter...
  • Page 64 Rev-1 Revision Information Title : Low Flow Transmitter  EJX115A and EJA115E Manual No. : IM 01C25K01-01E  Edition Date Page Revised Item July 2008 — New publication Aug. 2009 • Replace a name plate. 2-12 2.10 • Revise standards. 2.11 •...
  • Page 65 Rev-2 Edition Date Page Revised Item Oct. 2014 7.7.3 • Add note in the figure. 7-10 • Add 7.7.6 Pressure LRV/URV Configuration. 7-11 • Add 7.7.8 Output Mode Configuration and 7.7.9 Display Out 1 Configuration. 8.5.3 • Correct AL31 output operation. 9-1 to 9-2 • Add information for 1 to 5 V output. • Add EMC standard for PROFIBUS and EMI specification. • Add output signal code Q •...

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