Manual

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User’s

Manual

Yokogawa Electric Corporation

Model EJA115

Low Flow Transmitter

[Style: S3]

IM 01C22K01-01E

17th Edition

Summary of content (85 pages)

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User’s Manual Model EJA115 Low Flow Transmitter [Style: S3] IM 01C22K01-01E IM 01C22K01-01E Yokogawa Electric Corporation 17th Edition
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CONTENTS CONTENTS 1. INTRODUCTION ............................................................................................ 1-1 Regarding This Manual ................................................................................. 1-1 1.1 For Safe Use of Product ........................................................................ 1-1 1.2 Warranty ................................................................................................ 1-2 1.3 ATEX Documentation .............................
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CONTENTS 6.3.3 BRAIN TERMINAL BT200 Connection ........................................ 6-2 6.3.4 Check Meter Connection .............................................................. 6-2 6.4 Wiring .................................................................................................. 6-2 6.4.1 Loop Configuration ....................................................................... 6-2 (1) General-use Type and Flameproof Type .....................................
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CONTENTS (16) Test Output Setup ..................................................................... 8-15 (17) User Memo Fields ..................................................................... 8-15 8.4 Displaying Data Using the BT200 ..................................................... 8-16 8.4.1 Displaying Measured Data ......................................................... 8-16 8.4.2 Display Transmitter Model and Specifications ........................... 8-16 8.5 Self-Diagnostics .............
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1. INTRODUCTION 1. INTRODUCTION Thank you for purchasing the DPharp electronic pressure transmitter. • The following safety symbol marks are used in this manual: The DPharp Pressure Transmitters are precisely calibrated at the factory before shipment. To ensure correct and efficient use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.
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1. INTRODUCTION • In case of high process temperature, care should be taken not to burn yourself because the surface of body and case reaches a high temperature. (f) Modification • Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by the customer. • The instrument installed in the process is under pressure. Never loosen the process connector bolts to avoid the dangerous spouting of process fluid. 1.
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1. INTRODUCTION 1.3 ATEX Documentation SF This procedure is only applicable to the countries in European Union. Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet ovat saatavilla englannin-, saksan- ja ranskankielisinä. Mikäli tarvitsette Ex -tyyppisten tuotteiden ohjeita omalla paikallisella kielellännne, ottakaa yhteyttä lähimpään Yokogawa-toimistoon tai -edustajaan. GB All instruction manuals for ATEX Ex related products are available in English, German and French.
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1.
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2. HANDLING CAUTIONS 2. HANDLING CAUTIONS This chapter describes important cautions regarding how to handle the transmitter. Read carefully before using the transmitter. 2.1 Model and Specifications Check The EJA Series pressure transmitters are thoroughly tested at the factory before shipment. When the transmitter is delivered, visually check them to make sure that no damage occurred during shipment. The model name and specifications are indicated on the name plate attached to the case.
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2. HANDLING CAUTIONS 2.4 Selecting the Installation Location 2.6 Waterproofing of Cable Conduit Connections The transmitter is designed to withstand severe environmental conditions. However, to ensure stable and accurate operation for years, observe the following precautions when selecting an installation location. Apply a non-hardening sealant to the threads to waterproof the transmitter cable conduit connections. (See Figure 6.4.2a, 6.4.2b and 6.4.2d.
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2. HANDLING CAUTIONS 3) Turn ON the insulation tester power and measure the insulation resistance. The voltage should be applied short as possible to verify that the insulation resistance is at least 20 MΩ. 4) After completing the test and being very careful not to touch exposed conductors disconnect the insulation tester and connect a 100 kΩ resistor between the grounding terminal and the shortcircuiting SUPPLY terminals. Leave this resistor connected at least one second to discharge any static potential.
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2. HANDLING CAUTIONS • Intrinsically Safe Apparatus Parameters [Groups C, D, E, F and G] Vmax = 30 V Ci = 22.5 nF Imax = 225 mA Li = 730 µH Pmax = 0.9 W * Associated Apparatus Parameters (FM approved barriers) Voc ≤ 30 V Ca > 22.5 nF Isc ≤ 225 mA La > 730 µH Pmax ≤ 0.9 W [Nonincendive] Hazardous Location Supply EJA Series Pressure Transmitters + Supply – – – – – F0203-2.EPS b. FM Explosionproof Type Caution for FM explosionproof type. Note 1.
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2. HANDLING CAUTIONS c. FM Intrinsically Safe Type/FM Explosionproof Type Model EJA Series pressure transmitters with optional code /FU1 can be selected the type of protection (FM Intrinsically Safe or FM Explosionproof) for use in hazardous locations. Note 1. For the installation of this transmitter, once a particular type of protection is selected, any other type of protection cannot be used.
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2. HANDLING CAUTIONS Note 2. Wiring • All wiring shall comply with Canadian Electrical Code Part I and Local Electrical Codes. • In hazardous location, wiring shall be in conduit as shown in the figure. CAUTION: SEAL ALL CONDUITS WITHIN 50 cm OF THE ENCLOSURE. UN SCELLEMENT DOIT ÊTRE INSTALLÉ À MOINS DE 50 cm DU BÎTIER. • When installed in Division 2, “SEALS NOT REQUIRED.” Note 3. Operation • Keep the “CAUTION” label attached to the transmitter. CAUTION: OPEN CIRCUIT BEFORE REMOVING COVER.
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2. HANDLING CAUTIONS • Type “n” ratings are as follows: Maximum Input Voltage (Ui) = 30 V Maximum Internal Capacitance (Ci) = 22.5 nF Maximum Internal Inductance (Li) = 730 µH • Installation Requirements Uo ≤ Ui, Io ≤ Ii, Po ≤ Pi, Co ≥ Ci + Ccable, Lo ≥ Li + Lcable Uo, Io, Po, Co, and Lo are parameters of barrier. Note 3. Installation • In any safety barreir used output current must be limited by a resistor ‘R’ such that Io = Uo/R. • The safety barrier must be IECEx certified.
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2. HANDLING CAUTIONS • WARNING: WHEN AMBIENT TEMPERATURE ≥ 70°C, USE THE HEAT-RESISTING CABLES ≥ 90°C. • Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location. Note 4. Maintenance and Repair • The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void IECEx Certification. Note 5.
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2. HANDLING CAUTIONS • Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location. Note 5. Maintenance and Repair • The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Flameproof Certification. c.
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2. HANDLING CAUTIONS (4) Operation WARNING • OPEN CIRCUIT BEFORE REMOVING COVER. INSTALL IN ACCORDENCE WITH THIS UWER’S MANUAL • Take care not to generate mechanical sparking when access to the instrument and peripheral devices in hazardous locations. (5) Maintenance and Repair OUTPUT: Output signal. MWP: Maximum working pressure. CAL RNG: Specified calibration range. DISP MODE: Specified display mode. OUTPUT MODE: Specified output mode. NO.: Serial number and year of production*1.
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2. HANDLING CAUTIONS CAUTION (For TIIS flameproof type without integral indicator) When the fill fluid near the sensor part moves from within, the instrument outputs a failure signal either high or low of the specific signal. In that case, generate the alarm to identify that the failure signal is output since the event may invalidate the flameproof approval. If the optional integral indicator is equipped, the indicator identifies the alarm on its display. Therefore, no other alarm generation is necessary.
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2. HANDLING CAUTIONS Hazardous Location Nonhazardous Location 4 to 20 mA DC Transmitter Li=730 µH Ci=11 nF Safety Barrier Lw, Cw Lo, Co F0212.EPS (2) Installation Category I “Overvoltage category (Installation category)” describes a number which defines a transient overvoltage condition. It implies the regulattion for impulse withstand voltage. “I” applies to electrical equipment which is supplied from the circuit when appropriate transient overvoltage control means (interfaces) are provided.
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3. COMPONENT NAMES 3. COMPONENT NAMES Vertical impulse piping type Horizontal impulse piping type Process connection Pressure-detector section Process connector Manifold Cover flange External indicator conduit connection(Note 1) Terminal box cover Conduit connection Zeroadjustment screw CPU assembly Vent plug Integral indicator (Note 1) Transmitter section Conduit connection Drain plug Setting pin(CN4) Amplifier cover Mounting screw Range-setting switch(Note 1) (See Subsection 7.
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4. INSTALLATION 4. INSTALLATION 4.1 Precautions Vertical pipe mounting Before installing the transmitter, read the cautionary notes in Section 2.4, “Selecting the Installation Location.” For additional information on the ambient conditions allowed at the installation location, refer to Subsection 10.1 “Standard Specifications.” Transmitter mounting bolt IMPORTANT U-bolt nut • When welding piping during construction, take care not to allow welding currents to flow through the transmitter.
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4. INSTALLATION Vertical pipe mounting(Manifold upside) 4.3 Rotating Transmitter Section The DPharp transmitter section can be rotated in 90° segments. Mounting bracket 50 mm(2-inch) pipe U-bolt nut 1) Remove the two Allen screws that fasten the transmitter section and capsule assembly, using the Allen wrench. 2) Rotate the transmitter section slowly in 90° segments. 3) Tighten the two Allen screws to a torque of 5 N·m.
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4. INSTALLATION 4.4 Changing the Direction of Integral Indicator IMPORTANT Always turn OFF power, release pressure and remove a transmitter to non-hazardous area before disassembling and reassmbling an indicator. An integral indicator can be installed in the following three directions. Follow the instructions in section 9.4 for removing and attaching the integral indicator. F0404.EPS Figure 4.
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5. INSTALLING IMPULSE PIPING 5. INSTALLING IMPULSE PIPING 5.1 Process Piping Installation Precautions (2) Tightening the Process Connector Mounting Bolts The transmitter is shipped with the process connector mounting bolts only loosely tightened. After connecting the process piping, tighten these bolts uniformly to prevent leaks with a torque of 39 to 49 N·m {4 to 5 kgf·m}. The manifold contains a small-bore orifice.
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5. INSTALLING IMPULSE PIPING (2) Pipe Size for Process Piping Use a 15 mm (1/2-inch) pipe for process piping connection to the process connector. • The high pressure connecting port on the transmitter is shown on the right (as viewed from the front). • The transmitter process piping connection is shown for a vertical impulse piping connection configuration in which the direction of process flow is from right to left.
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6. WIRING 6. WIRING 6.1 Wiring Precautions CAUTION When selecting cables for TIIS flameproof type transmitters, determine cables' maximum allowable heat resistance depending on the temperature condition on the transmitter. See Section 2.9.5 TIIS Certification for details. IMPORTANT • Lay wiring as far as possible from electrical noise sources such as large capacity transformers, motors, and power supplies. • Remove electrical connection dust cap before wiring.
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6. WIRING 6.3.3 BRAIN TERMINAL BT200 Connection Connect the BT200 to the SUPPLY + and – terminals (Use hooks). The communication line requires a reception resistor of 250 to 600 Ω in series. Transmitter terminal box + Power supply – Ignore the polarity since the BT200 is AC-coupled to the terminal box. BT200 6.4.1 Loop Configuration Since the DPharp uses a two-wire transmission system, signal wiring is also used as power wiring. DC power is required for the transmitter loop.
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6. WIRING 6.4.2 Wiring Installation (1) General-use Type and Intrinsically Safe Type Make cable wiring using metallic conduit or waterproof glands. • Apply a non-hardening sealant to the terminal box connection port and to the threads on the flexible metal conduit for waterproofing. • Measure the cable outer diameter in two directions to within 1 mm. • Calculate the average of the two diameters, and use packing with an internal diameter nearest to this value (see Table 6.4.2). Table 6.4.
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;; 6. WIRING Flameproof metal conduit wiring • A seal fitting must be installed near the terminal box connection port for a sealed construction. • Apply a non-hardening sealant to the threads of the terminal box connection port, flexible metal conduit and seal fitting for waterproofing. 6.6 Power Supply Voltage and Load Resistance When configuring the loop, make sure that the external load resistance is within the range in the figure below.
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7. OPERATION 7. OPERATION 7.1 Preparation for Starting Operation Stop valve(downstream side) Manifold The Model EJA115 low flow transmitter measures the flow rates of liquids and gases. This section describes the operation procedure for the EJA115 as shown in Figure 7.1 (vertical impulse piping type, high-pressure connection: right side) when measuring a liquid flow rate. Stop valve (upstream side) (a) Follow the procedures below to introduce process pressure into the transmitter.
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7. OPERATION BT200 NOTE Output signal (%) display PARAM A10:OUTPUT(%) 0.0 % A11:ENGR OUTPUT If any of the error indications above appears on the display of the integral indicator or BT200, refer to Subsection 8.5.2 for corrective action. A20:AMP TEMP DATA Verify and Change Transmitter Parameter Setting and Values The following parameters are the minimum settings required for operation. The transmitter has been shipped with these parameters. To confirm or change the values, see Subsection 8.3.3.
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7. OPERATION 7.3 Starting Operation 7.4 Shutting Down Operation After completing the zero point adjustment, follow the procedure below to start operation. Shut down the transmitter operation as follows. 1) Turn off the power. 2) Close the stop valves on the up and downstream sides. 1) Open the stop valve on the upstream side. 2) Gradually open the stop valve on the downstream side. This places the transmitter in an operational condition. 3) Confirm the operating status.
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7. OPERATION Equivalent Air Flow Calculation Qo = 0.5356 . Qn ρn . 7.5.2 Example of Calculation 273.15 + t . Zf 101.
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7. OPERATION 0.05 0.1 0.5 1 5 10 40 200 200 100 100 50 50 Differential Pressure (kPa) 0.508 0.864 1.511 2.527 4.039 6.350 10 10 5 5 1 0.01 1 0.05 0.1 0.5 1 5 10 40 Equivalent water flow(liter/min at 0 C, 1 atm) F0707.EPS Figure 7.5.1 Relationship between Equivalent Water Flow and Differential Pressure 0.5 1 5 10 50 100 500 1000 200 200 100 100 50 50 Differential Pressure (kPa) 0.508 0.864 1.511 2.527 4.039 6.350 10 10 5 5 1 0.
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7. OPERATION 1.00 0.95 Correction Factor (Kaf/Ka) 0.90 E F D C 0.85 A: F9340NL ("0.508) B: F9340NM ("0.864) C: F9340NN ("1.511) D: F9340NP ("2.527) E: F9340NQ ("4.039) F: F9340NR ("6.350) B A 0.80 0.75 4 5 6 8 102 2 3 4 5 6 8 103 2 3 4 5 6 8 104 Reynolds number(Re) 2 3 4 5 6 8 105 F0709.EPS Figure 7.5.
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7. OPERATION 7.6.2 Venting Gas 7.6 Venting or Draining Transmitter Pressure-detector Section 1) Gradually open the vent screw to vent gas from the transmitter pressur-detector section. (See Figure 7.6.2.) 2) When the transmitter is completely vented, close the vent screw. 3) Tighen the vent screw to a torque of 10 N·m {1kgf·m}.
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7. OPERATION 6) Press the range-setting push-button. The integral indicator then displays “HSET.” 7) Apply a pressure of 20 kPa to the transmitter. (Note 1) 8) Turn the external zero-adjustment screw in the desired direction. The integral indicator displays the output signal in %. (Note 2) 9) Adjust the output signal to 100% (5 V DC) by rotating the external zero-adjustment screw. Doing so completes the HRV setting. 10) Press the range-setting push-button.
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8. BRAIN TERMINAL BT200 OPERATION 8. BRAIN TERMINAL BT200 OPERATION The DPharp is equipped with BRAIN communications capabilities, so that range changes, Tag No. setup, monitoring of self-diagnostic results, and zero point adjustment can be handled by remote control via BT200 BRAIN TERMINAL or CENTUM CS console. This section describes procedures for setting parameters using the BT200. For details concerning the BT200, see IM 01C00A11-01E, “BT200 User’s Manual.” 8.2 BT200 Operating Procedures 8.2.
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8. BRAIN TERMINAL BT200 OPERATION 8.2.2 Operating Key Functions Use the function key [F1] CODE to enter symbols. The following symbols will appear in sequence, one at a time, at the cursor each time you press [F1] CODE: (1) Alphanumeric Keys and Shift Keys You can use the alphanumeric keys in conjunction with the shift keys to enter symbols, as well as alphanumeric keys. / . – , + * ) ( ’ & % $ # ” ! To enter characters next to these symbols, press [ > ] to move the cursor.
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8. BRAIN TERMINAL BT200 OPERATION 8.2.3 Calling Up Menu Addresses Using the Operating Keys ––WELCOME–– BRAIN TERMINAL ID: BT200 STARTUP SCREEN check connection push ENTER key UTIL The utility screen contains the following items. 1. BT200 ID settings 2. Security code settings 3. Switching language of messages (Japanese or English) 4. LCD contrast setting 5. Adjusting printout tone (BT200-P00 only) UTILITY 1.ID 2.SECURITY CODE 3.LANGUAGE SELECT 4.LCD CONTRAST 5.
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8. BRAIN TERMINAL BT200 OPERATION 8.3 Setting Parameters Using the BT200 8.3.1 Parameter Summary Instruments to which applicable: F: Differential pressure transmitters P: Pressure transmitters L: Liquid level transmitters No. Item 01 MODEL 02 TAG NO. EJA110, EJA120, EJA118W, EJA118N, EJA118Y, and EJA115 EJA310, EJA430, EJA438W, and EJA438N EJA210 and EJA220 Description Model+capsule type Tag number 03 SELF CHECK Self-diagnostic result A DISPLAY Measured data display A10 OUTPUT (%) A11 ENGR.
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8. BRAIN TERMINAL BT200 OPERATION No. D Item AUX SET 1 D31 STAT. P.
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8. BRAIN TERMINAL BT200 OPERATION 8.3.2 Parameter Usage and Selection IMPORTANT Before describing the procedure for setting parameters, we present the following table showing how the parameters are used and in what case. If the transmitter is turned off within 30 seconds after parameters have been set, the set data will not be stored and the terminal returns to previous settings. Table 8.3.1 Parameter Usage and Selection Setup Item Tag No. setup P.8-7 Description Sets the Tag No.
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8. BRAIN TERMINAL BT200 OPERATION 8.3.3 Setting Parameters Set or change the parameters as necessary. After completing these, do not fail to use the “DIAG” key to confirm that “GOOD” is displayed for the selfdiagnostic result at _60: SELF CHECK. SET C10:TAG NO. YOKOGAWA FIC-1a This is the panel for confirming set data. The set data items flash. PRINTER OFF F2:PRINTER ON FEED POFF NO When all items have been confirmed, press the again. (To go back to the setting panel, press the (1) Tag No.
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8. BRAIN TERMINAL BT200 OPERATION b. Setting Calibration Range Lower Range Value and Higher Range Value (C21: LOW RANGE, C22: HIGH RANGE) These range values are set as specified in the order before the instrument is shipped. Follow the procedure below to change the range. • Example 2: With present settings of 0 to 30 kPa, set the Higher range value to10 kPa. DEL FEED DEL CLR FEED NO SET C20:PRESS UNIT kPa C21:LOW RANGE 0.5 kPa C22:HIGH RANGE 30.
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8. BRAIN TERMINAL BT200 OPERATION (4) Output Mode and Integral Indicator Display Mode Setup (C40: OUTPUT MODE) The mode setting for the output signal and the integral indicator coordinate as shown in the table below. BT200 Display Output Mode Integral Indicator Display Mode OUT: LIN DSP: LIN Linear Linear • Example: Change the low cut setting range from 10% to 20%, and the low cut mode from LINEAR to ZERO.
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8. BRAIN TERMINAL BT200 OPERATION (7) Integral Indicator Scale Setup The following 5 displays are available for integral indicators. D20: DISP SELECT and Display NORMAL % • Example: Change the low cut setting range from 10% to 20%, and the low cut mode from LINEAR to ZERO. Indicates –5 to 110% range depending on the Measurement range (C21, C22). Press the (OK) key. Next, the [D11: LOW CUT MODE] setting panel is displayed. Indicates values depending on the Engineering range (D22, D23).
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8. BRAIN TERMINAL BT200 OPERATION b. Setting User-set Engineering Unit (D21: DISP UNIT) This parameter allows entry of the engineering units to be displayed on the BT200. When the instrument is shipped, this is set as specified in the order. c. Lower and Higher Range Value Setup in Engineering Unit (D22: DISP LRV, D23: DISP HRV) These parameter items are used to set the lower and higher range values for the engineering unit display. Follow the procedure below to change this setting.
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8. BRAIN TERMINAL BT200 OPERATION (9) Unit Setup for Displayed Static Pressure (D31: STAT.P.UNIT) Follow the procedure below to change the static pressure units. Changing this parameter changes the unit for the A30: STATIC PRESS (static pressure) display. (11) Output Status Display/Setup when a CPU Failure (D52: BURN OUT) This parameter displays the status of 4 to 20 mA DC output if a CPU failure occurs. In case of a failure, communication is disabled. Setting of HIGH or LOW is enabled.
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8. BRAIN TERMINAL BT200 OPERATION (13) Range Change while Applying Actual Inputs (H10: AUTO LRV, H11: AUTO HRV) This feature allows the lower and higher range values to be set up automatically with the actual input applied. If the lower and higher range values are set, C21: LOW RANGE and C22: HIGH RANGE are changed at this same time. Note that changing the higher range value does not cause the lower range value to change but does change the span.
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8. BRAIN TERMINAL BT200 OPERATION (15) Span Adjustment Each DPharp EJA series transmitter is factory characterized according to the specification. Mounting position effects or zero shifts caused by static pressure are typically compensated by a zero adjustment. (a) Follow the procedure below when setting the present output to 0% (4 mA). Output is 0.5%. A10:OUTPUT (%) 0.5 % SET J10:ZERO ADJ 0.0 % + 000.0 Press the CLR ESC SET J10:ZERO ADJ 0.
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8. BRAIN TERMINAL BT200 OPERATION (16) Test Output Setup (K10: OUTPUT X%) This feature can be used to output a fixed current from 3.2 mA (–5%) to 21.6 mA (110%) for loop checks. • Example: For the range of 0 to 30 kPa. A40: INPUT = 30.15 kPa J15: SPAN ADJ = 0.15 % Suppose that a standard pressure of 30 kPa is applied and the value of the parameter of A40: INPUT is 30.15 kPa. Firstly, obtain the slope error for the span as follows; Span adjustment value (%) = • Example: Output 12 mA (50%) fixed current.
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8. BRAIN TERMINAL BT200 OPERATION 8.4 Displaying Data Using the BT200 8.5 Self-Diagnostics 8.5.1 8.4.1 Displaying Measured Data Checking for Problems (1) Identifying Problems with BT200 The following four areas can be checked. (a) Whether connections are good. (b) Whether BT200 was properly operated. (c) Whether settings were properly entered. (d) History of the errors. See examples below. The BT200 can be used to display measured data. The measured data is updated automatically every 7 seconds.
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8. BRAIN TERMINAL BT200 OPERATION (2) Checking with Integral Indicator • Example 3: Checking the history of the errors Connect the BT200 to the transmitter, and call item “P.” MENU J:ADJUST K:TEST M:MEMO P:RECORD HOME SET ADJ ESC PARAM P10:ERROR REC 1 ERROR P11:ERROR REC 2 ERROR P12:ERROR REC 3 GOOD DATA DIAG PRNT ESC NOTE If an error is detected in the self-diagnostic, an error number is displayed on the integral indicator.
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8. BRAIN TERMINAL BT200 OPERATION 8.5.2 Errors and Countermeasures The table below shows a summary of error messages. Table 8.5.1 Error Message Summary Integral Indicator Display BT200 Display Cause Output Operation during Error Countermeasure None GOOD ---- ERROR Er. 01 CAP MODULE FAULT Capsule problem.*1 Outputs the signal (Hold, High, or Low) set with parameter D53. Replace the capsule when error keeps appearing even after restart.*2 Er. 02 AMP MODULE FAULT Amplifier problem.
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9. MAINTENANCE 9. MAINTENANCE 9.1 Overview WARNING Since the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors during draining condensate or venting gas in transmitter pressure-detector section and even after dismounting the instrument from the process line for maintenance. Maintenance of the transmitter is easy due to its modular construction.
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9. MAINTENANCE Table 9.2.1 Instruments Required for Calibration Name Power supply Load resistor Voltmeter Digital manometer Pressure generator Pressure source Yokogawa-recommended Instrument Remarks 4 to 20 mA DC signal Model SDBT or SDBS distributor Model 2792 standard resistor [250 Ω ±0.005%, 3 W] Load adjustment resistor [100 Ω ±1%, 1 W] Model 2501 A digital multimeter Accuracy (10V DC range): ±(0.002% of rdg + 1 dgt) Model MT220 precision digital manometer 1) For 10 kPa class Accuracy: ±(0.
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9. MAINTENANCE 9.4 Disassembly and Reassembly 9.4.1 Replacing the Integral Indicator CAUTION This section describes procedures for disassembly and reassembly for maintenance and component replacement. Cautions for TIIS Flameproof Type Transmitters Users are prohibited by law from modifying the construction of a flameproof type transmitter. This would invalidate the agency approval and the transmitter’s use in such rated area.
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9. MAINTENANCE 1) Align both the LCD board assembly and CPU assembly connectors and engage them. 2) Insert and tighten the two mounting screws. 3) Replace the cover. Output terminal cable Mounting the CPU Assembly 1) Connect the flat cable (with black connector) between the CPU assembly and the capsule. 2) Connect the output terminal cable (with brown connector). NOTE Press forward Make certain that the cables are free of pinching between the case and the CPU assembly edge.
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9. MAINTENANCE 9.4.4 Cleaning Manifold Assembly and Replacing Orifice NOTE Exercise care as follows when reassembling the manifold assembly. (See Figure 9.4.4.) • Be careful not to reassemble the orifice in the wrong direction. Note that the spacer is configured so that it cannot be placed in the reverse direction. • When mounting the manifold on the cover flange, confirm the indication “flow direction” shown on the manifold surface and the high and low pressure sides of the pressuredetector section.
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9. MAINTENANCE 9.4.5 Cleaning and Replacing the Capsule Assembly This subsection describes the procedures for cleaning and replacing the capsule assembly. (See Figure 9.4.5.) CAUTION Cautions for TIIS Flameproof Type Transmitters Users are prohibited by law from modifying the construction of a flameproof type transmitter. If you wish to replace the capsule assembly with one of a different measurement range, contact Yokogawa.
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9. MAINTENANCE 9.5.2 Troubleshooting Flow Charts 9.5 Troubleshooting The following sorts of symptoms indicate that transmitter may not be operating properly. Example : • There is no output signal. • Output signal does not change even though process variable is known to be varying. • Output value is inconsistent with value inferred for process variable. If any abnormality appears in the measured values, use the troubleshooting flow chart below to isolate and remedy the problem.
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9. MAINTENANCE Output travels beyond 0% or 100%. Large output error. Connect BRAIN TERMINAL and check self-diagnostics. Connect BRAIN TERMINAL and check self-diagnostics. Does the selfdiagnostic indicate problem location? NO Refer to error message summary in Subsection 8.5.2 to take actions. NO Refer to error message summary in Subsection 8.5.2 to take actions. NO Fully open the valves on the upstream and downstream sides.
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10. GENERAL SPECIFICATIONS 10. GENERAL SPECIFICATIONS Damping Time Constant (1st order): The sum of the amplifier and capsule damping time constant must be used for the overall time constant. Amp damping time constant is adjustable from 0.2 to 64 seconds. 10.1 Standard Specifications Refer to IM 01C22T02-01E for FOUNDATION Fieldbus communication type and IM 01C22T0300E for PROFIBUS PA communication type marked with “䉫”. Capsule (Silicone Oil) Time Constant (approx. sec) M H 0.4 0.3 0.3 T1002.
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10. GENERAL SPECIFICATIONS HART Communication Distance; Up to 1.5 km (1 mile) when using multiple twisted pair cables. Communication distance varies depending on type of cable used.
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10. GENERAL SPECIFICATIONS 10.2 Model and Suffix Codes 䊉 Model EJA115 Model EJA115 Output Signal [Style: S3] Suffix Codes ....................... -D . . . . . . . . . . . . . . . . . . . . . -E . . . . . . . . . . . . . . . . . . . . . -F . . . . . . . . . . . . . . . . . . . . . -G . . . . . . . . . . . . . . . . . . . . . Measurement span (capsule) L.................. M.................. H.................. Wetted parts material Process flange rating – S................. 2................ 4.........
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10. GENERAL SPECIFICATIONS 10.3 Optional Specifications For FOUNDATION Fieldbus explosion protected type, see IM 01C22T02-01E. For PROFIBUS PA explosion protected type, see IM 01C22T03-00E. Item Description Factory Mutual (FM) Code FM Explosionproof Approval *1 Explosionproof for Class I, Division 1, Groups B, C and D Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G Hazardous (classified) locations, indoors and outdoors (NEMA 4X) Division 2, ‘SEALS NOT REQUIRED’, Temp. Class: T6 Amb.
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10. GENERAL SPECIFICATIONS Item Description Canadian Standards Association (CSA) Code CSA Explosionproof Approval *1 Certificate: 1089598 Explosionproof for Class I, Division 1, Groups B, C and D Dustignitionproof for Class II/III, Division 1, Groups E, F and G Division2 ‘SEALS NOT REQUIRED’ , Temp. Class: T4, T5, T6 Encl Type 4x Max. Process Temp.: T4; 120 C (248 F), T5; 100 C (212 F), T6; 85 C (185 F) Amb. Temp.
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10. GENERAL SPECIFICATIONS Item Description Code Amplifier cover only P Amplifier cover and terminal cover, Munsell 7.5 R4/14 PR Epoxy resin-baked coating X1 316 SST exterior parts Exterior parts on the amplifier housing (name plates, tag plate, zero-adjustment screw, stopper screw) will become 316 or 316L SST. HC Lightning protector Transmitter power supply voltag: 10.5 to 32 V DC (10.
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10. GENERAL SPECIFICATIONS 10.4 Dimensions Model EJA115 [Style: S3] Unit: mm(approx. inch) Vertical Impulse Piping Type, Manifold upside(INSTALLATION CODE '6') 9 *1 (0.35) ø78 (3.07) Terminal side Internal indicator (Optional) Ground terminal Conduit connection 53 ( 2.09) Flow direction (Note) 87 (3.43) Manifold 156 (6.14) 149 (5.87) 63 (2.48) 46 (1.81) 97 (3.82) 102 (4.02) 242(9.53) 63 (2.48) Process connections External indicator conduit connection (Optional) 259(10.20) 197 (7.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS INTRINSICALLY SAFE EQUIPMENT INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS INTRINSICALLY SAFE EQUIPMENT Apparatus Certified Under Technical Criteria (IEC-compatible Standards) and from “RECOMMENDED PRACTICES for Explosion-Protected Electrical Installations in General Industries,” published in 1979 1.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS INTRINSICALLY SAFE EQUIPMENT (2) For pressure transmitters, pH transmitters, temperature detectors and the like, safety barriers that can be combined are already specified. Other safety barriers cannot be used. — when up to two countable faults are applied and, in addition, — when non-countable faults produce an onerous condition.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS INTRINSICALLY SAFE EQUIPMENT intrinsically safe apparatus may be used at an ambient temperature up to 60°C. So, specifications should be checked before installing intrinsically safe apparatus. Installations for Explosive Gas Atmospheres in General Industry” issued in 1994 by the Japanese Ministry of Labour, the Research Institute of Industrial Safety.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT Apparatus Certified Under Technical Criteria (IEC-compatible Standards) 1. General construction is of completely enclosed type and its enclosure shall endure explosive pressures in cases where explosive gases or vapours entering the enclosure cause explosion.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT 4. Installation of Flameproof Apparatus • Specific cables shall be used as recommended by the “USER’S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry,” published in 1994. • In necessary, appropriate protective pipes (conduit or flexible pipes), ducts or trays shall be used for preventing the cable run (outside the cable glands) from damage.
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INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT 6. Maintenance of Flameproof Apparatus requirements for flameproof apparatus (however, bear in mind that the apparatus must always be restored to its original condition). If you attempt to repair the flameproof apparatus, company-specified components shall be used. (d) Before starting to service the apparatus, be sure to check all parts necessary for retaining the requirements for flameproof apparatus.
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Customer Maintenance Parts List DPharp EJA Series Transmitter Section 2 5 4 11 A 10 3 12 13 1 2 2 1 14 A 6 7-1 Item Part No.
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Customer Maintenance Parts List Model EJA115 Low Flow Transmitter (Pressure-detector Section) Horizontal Impulse Piping Type 15 2 4 11 18 1 19 16 3 4 3 5 10 21 22 6 23 14 24 12 25 13 12 7 12 22 23 26 12 13 26 14 All Rights Reserved, Copyright © 1995, Yokogawa Electric Corporation. CMPL 01C22K01-01E 10th Edition: Apr.
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2 Vertical Impulse Piping Type 14 13 12 26 26 12 13 22 23 14 24 25 12 3 21 4 12 1 11 3 4 27 8 2 10 9 28 18 20 17 Apr. 2006 Subject to change without notice. Printed in Japan.
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3 Part No. Qty Description 1 2 3 — F9300AJ Below F9340GA F9340GC 1 1 2 Capsule Assembly (see table 1.and table 2.
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4 Item Part No. 21 F9340PE F9340PF F9275ZT Below F9340NL 22 23 Qty 1 1 24 25 26 F9273HC F9275ZR Below F9147AF A0116WT 1 1 4 Gasket, PTFE Teflon (Note 2) Manifold, SUS316 Stainless Steel (Note 2) Bolt Chrome Molybdenum Steel SUS630 Stainless Steel 27 Below F9275EC F9275ED F9275EE 2 Vent Plug (degreased), SUS316 Stainless Steel R 1/4 1/4 NPT Needle Assebmly (degreased), SUS316 Stainless Steel 28 (Note 2) Orifice Bore : 4.039 mm Orifice Bore : 6.
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REVISION RECORD Title: Model EJA115 Low Flow Transmitter Manual No.: IM 01C22K01-01E Edition Date Page 7th Mar. 1998 1-1 6-1 11-1 11-2 11-3 2-9+ CMPL CMPL 8th Sep. 1998 2-14 2-15 8-20 11-2 CMPL 9th Feb. 2000 – 2-9 6-1 6-3 8-4 – 10-5 CMPL Revised Item 1 6.1 11.1.1 11.1.2 11.1.3 • Add FOUNDATION Fieldbus protcol version to ‘NOTE’ notice. • Add Item 6 to the Wiring Precautions. • Add FOUNDATOIN Fieldbus protocol. • Add Output signal code F. • Add Optional code A1.
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Edition 10th Date Page Sep. 2000 2-8 2-9 3-1 8-4,8-5 8-8 8-12 8-14 10-1 10-4 CMPL 11th July 2001 2-10 8-4, 8-5 CMPL Revised Item 2.9.4b Change ambient Temperature limit and add Caution for cable wiring. 2.9.5b Add Caution for /JS3 3 Add Note for /F1 8.3.1 Add parameter E10, E14 and E15. Add Note for /F1. 8.3.3.(3) Add Note for /F1. 8.3.3.(10)(11)Add Note for /F1. 8.3.3.(14) Add Note for /F1. 10.1 Change the capsule damping time constant. 10.3 Add /JS3 and delete /JS1. Change Amb.Temp.
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Edition 17th Date Page Oct. 2008 2-9 2-12 7-1 8-4 and 8-5 8-6 8-9 and later 8-18 9-1 9-6 10-3 10-5, 10-6 10-7 CMPL Revised Item 2.9.4 2.10 7.1 8.3.1 8.3.2 8.3.3 Change explosion protection marking for type n from EEx to Ex. Update EMC coformity standards. Modify layout. Add new parameters. Add items in table 8.3.1. Add (6) Change Output Limit and (15) Span Adjustment. Re-number the items. 8.5.2 Modify descriptions and notes for Er.01. 9.3 Add a note for calibration. 9.4.5 Add a note for cleaning. 10.