1. INTRODUCTION INTRODUCTION Thank you for purchasing the DPharp EJX multivariable • Yokogawa makes no warranty of any kind with transmitter. regard to this manual, including, but not limited to, implied warranty of merchantability and fitness for a Your EJX multivariable Transmitter was precisely particular purpose.
If these instructions are not heeded, the protection provided by this instrument may be im- paired. In this case, Yokogawa cannot guarantee that the instrument can be safely operated. Please pay CAUTION special attention to the following points:...
Yokogawa. (f) Modification • The purchaser shall bear the responsibility for repair • Yokogawa will not be liable for malfunctions or costs, even during the warranty period, if the damage resulting from any modification made to this malfunction is due to: instrument by the customer.
Se si desidera ricevere i manuali operativi di prodotti Ex in lingua locale, mettersi in Alle Betriebsanleitungen für ATEX Ex bezogene contatto con l’ufficio Yokogawa più vicino o con un Produkte stehen in den Sprachen Englisch, Deutsch rappresentante.
2. About Multivariable Transmitter About the EJX910A Multivariable Transmitter • Simultaneous Analog Output and Pulse This chapter gives an overview of the functions and the Output (HART protocol type) installation of the EJX910A Multivariable transmitter. For details on specific procedures, refer to the corre- The EJX910A has one analog output for the output of sponding chapter.
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2. About Multivariable Transmitter IMPORTANT Before performing flow configuration in the field, make sure the installation location meets all safety requirements. START Unpacking and Review Installation Confirmation of Considerations Specifications (see Chapter5) (see Chapter3) Review the Mount Transmitter Handling Cautions (see Chapter5) (see Chapter3) Make Process...
2. About Multivariable Transmitter Based Mass Flow Equation 2.3 Flow Calculation There are two flow calculation modes: auto compensa- Qm = tion mode and basic mode. (1– The EJXMVTool mass flow configuration software is C, , , d and are dynamically compensated flow required to configure auto compensation mode.
2. About Multivariable Transmitter 2.4.1 Configuration Procedure for Auto NOTE Compensation Mode (1) Refer to the following instruction manuals for The EJXMVTool is required to configure auto com- a more detailed explanation: pensation mode. Following shows the procedures for When setting with the HART HHT: HART protocol type.
2. About Multivariable Transmitter Table 2.2 Symbols Table 2.4 Normal•Standard Volume Flow Unit (HART protocol type) Symbol Description Unit Communication Mass Flow normal cubic meter per hour Nm3/h Volume Flow normal liter per hour NL/h Qv_norm Normal·Standard Volume Flow Standard cubic feet per minute SCFM Unit convert factor T0204E.EPS...
2. About Multivariable Transmitter (3) Connect the EJX910A to the power supply. The dimension of the pressure unit Pa are M•L •S Where M: mass (Kg) L: Length (m) NOTE S: Time (second) even when the RTD is not connected and alarm (3) Preparation of flow parameters for Kfactor number 03 is displayed on the indicator, setting calculation...
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2. About Multivariable Transmitter Example 1 : Calculation of Nc (1) When flow unit is changed. Nc= (Kg/s) /(Mass Flow unit in use) Table 2.6 Example of Calculated Nc by Flow Unit Flow unit Calculation of Nc kg/s (kg/s) / (kg/s) = (1kg/1s) / (1kg/1s) kg/h (kg/s) / (kg/h) = (1kg/1s) / (1kg/3600s) 3600...
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2. About Multivariable Transmitter Method 2. Calculating the Kfactor by means of (3) Preparation of parameters for calculation the flow condition. All parameters use the units which are shown at Flow conditions include; DP, SP, SPb, T, Tb, and (2). TempK1 (4) Calculation of the Kfactor (1) Selection of the flow equation...
3. HANDLING CAUTIONS HANDLING CAUTIONS This chapter provides important information on how to 3.1 Model and Specifications handle the transmitter. Read this carefully before using Check the transmitter. The model name and specifications are written on the EJX Series transmitters are thoroughly tested at the name plate attached to the case.
3. HANDLING CAUTIONS (b) Make sure that there are no leaks in the impulse 3.4 Selecting the Installation piping. Location (c) Never apply a pressure higher than the specified maximum working pressure. The transmitter is designed to withstand severe environmental conditions. However, to ensure that it 3.6 Waterproofing of Cable will provide years of stable and accurate performance, take the following precautions when selecting the...
• Output signal: 4 to 20 mA be compromised and the instrument may be hazardous Note 2. Wiring to operate. Please contact Yokogawa before making • All wiring shall comply with National Electrical any repair or modification to an instrument.
65 C, UTILISEZ DES CÂBLES RÉSISTANTES Á by other than authorized representative of LA CHALEUR 90 C. Yokogawa Electric Corporation is prohibited and • Take care not to generate mechanical sparking will void Factory Mutual Explosionproof Approval. when accessing to the instrument and peripheral devices in a hazardous location.
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• The instrument modification or part replacement by Uo = 30 V other than an authorized representative of Io = 95.4 mA Yokogawa Electric Corporation is prohibited and Po= 468 mW will void KEMA Flameproof Certification. Effective internal capacitance; Co = 11 nF Effective internal inductance;...
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A mark indicating the electrical connection type is by other than authorized representative of stamped near the electrical connection port. These Yokogawa Electric Corporation is prohibited and marks are as followed. will void KEMA Intrinsically safe Certification. Note 5. Special Conditions for Safe Use •...
CAUTION exceeding PS. • Take appropriate measures at the device or To meet EMC regulations, Yokogawa recom- system level to protect transmitters if they are mends that customers run signal wiring through to be operated near an external heat source.
3. HANDLING CAUTIONS 3.12Low Voltage Directive Applicable standard : EN61010-1 (1) Pollution Degree 2 “Pollution degree” describes the degree to which a soild, liquid, or gas which deteriorates dielectric strength or surface resistivity is adhering. “2” applies to normal indoor atmosphere. Normally, only non-conductive pollution occurs.
5 . INSTALLATION INSTALLATION 5.1 Precautions Vertical pipe mounting Before installing the transmitter, read the cautionary notes in section 3.4, “Selecting the Installation Loca- tion.” For additional information on the ambient conditions allowed at the installation location, refer to Transmitter subsection 10.1 “Standard Specifications.”...
5 . INSTALLATION 5.3 Changing the Process Con- Vertical pipe mounting (Process connector downside) nection Transmitter The transmitter is shipped with the process connection mounting bolt specified at the time of ordering. To change the process connection,the drain (vent) plug must be repositioned. Mounting bracket To reposition a drain (vent) plug, use a wrench to slowly and gently unscrew it.
5 . INSTALLATION 5.4 Swapping the High/Low- 5.4.2 Using the Communicator pressure Side Connection With a communicator, you can change which process connection is used as the high-pressure side without 5.4.1 Rotating Pressure-detector Section mechanically rotating the pressure-detector section 180 as described in subsection 5.4.1.
5 . INSTALLATION 5.5 Rotating Transmitter Section 5.6 Changing the Direction of Integral Indicator The transmitter section can be rotated approximately 360 (180 to either direction or 360 to one direction from the original position at shipment, depending on IMPORTANT the configuration of the instrument.) It can be fixed at any angle within above range.
6. INSTALLING IMPULSE PIPING INSTALLING IMPULSE PIPING 6.1 Impulse Piping Installation (3) Tightening the Process Connector Mount- ing Bolts Precautions After connecting an impulse line, tighten the process The impulse piping that connects the process outputs to connector mounting bolts uniformly. the transmitter must convey the process pressure accurately.
6. INSTALLING IMPULSE PIPING Impulse piping Nipple NOTE Vent plug 3-valve (optional) manifold Ball head After completing the connection of the transmit- lock nut Stop valve ter and 3-valve manifold, be sure to CLOSE the (low pressure side) low pressure and high pressure stop valves, Pipe Equalizing valve Pipes...
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6. INSTALLING IMPULSE PIPING (2) Position of Process Pressure Taps and (6) Preventing Wind Speed Effects in Very Transmitter Low Differential Pressure Measurement If condensate (or gas) accumulates in the impulse piping, it should be removed periodically by opening IMPORTANT the drain (or vent) plugs.
6. INSTALLING IMPULSE PIPING 6.2 Impulse Piping Connection Liguid Steam Examples Orifice Condensate pot Figure 6.5 shows examples of typical impulse piping valve connections. Before connecting the transmitter to the process, study the transmitter installation location, the Union process piping layout, and the characteristics of the or flange process fluid (corrosiveness, toxicity, flammability, etc.), in order to make appropriate changes and...
7. WIRING WIRING 7.1 Wiring Precautions (e) It is recommended that crimp-on solderless terminal lugs (for 4 mm screws) with insulating sleeves be used for leadwire ends. IMPORTANT • The information in the sections from 7.2 7.3 Types of Output throught 7.5(except for 7.5.2) is specific to Table 7.1 shows the wiring example according to the HART protocol type.
7. WIRING Transmitter terminal box Check meter Power supply IMPORTANT • For pulse output and the simultaneous analog- – pulse output ,use the load resistance. Refer to Table 7.1. 7.4 Connection F0705E.EPS Figure 7.4 Check Meter Connection 7.4.1 Power Supply Wiring Connection 7.4.5 External Temperature Connection Table 7.1 shows the wiring example according to the output types.
7. WIRING (2) Intrinsically Safe Type (2) Flameproof Type With the intrinsically safe type, a safety barrier must be Wire cables through a flameproof packing adapter, or included in the loop. Followings are wiring examples. use a flameproof metal conduit. Wiring cable through flameproof packing adapter.
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7. WIRING • RTD connection components: EJX910A, two cable CAUTION glands, and RTD cable Two cable glands are attached. Input/output signal is non-isolated. Do not turn on power supply until you complete Electrical connection all the wiring work. Cable gland Procedure RTD cable with connector...
7. WIRING (6) Turn the running coupler until the seal in the (2) Remove the cap protecting the connecting entry comes into contact with the RTD cable. port. Then insert the RTD cable and firmly plug the connector into the connecting port in the transmitter's terminal box.
7. WIRING NOTE NOTE Please note that a temperature error will occur The color display in the table shows the white when you use a 2-wire RTD because of wiring line of the cable. resistance. The cable color could change depending on the Please do not ground the shield on the RTD side cable type.
7. WIRING Table 7.1 The connection example for simultaneous analog and pulse and alarm, status output. (For HART protocol type) Description Output Type Analog Output EJX910A Electrical Terminal Distributor In this case, 24V DC SUPPLY Communication is – possible (up to a distance of 2km when a CEV cable –...
8. OPERATION OPERATION (c) Using the communicator, confirm that the transmit- 8.1 Preparation for Starting ter is operating properly. Check parameter values or Operation change the setpoints as necessary. See IM 01C25R02-01E (HART communication) for This section describes the operation procedure for the communicator operation.
8. OPERATION Using the integral indicator IMPORTANT • If the wiring system is faulty, the display stays blank. • If the transmitter is faulty, an error code is displayed. Do not turn off the power to the transmitter immediately after performing a zero point adjust- ment.
4. SP sensor trim time constant. 1. SP trim 4) After confirming the operating status, perform the following. EJX-MV:YOKOGAWA SP trim mode: 1 Off IMPORTANT 2 Auto, Lower Pt 3 Auto, Upper Pt...
8. OPERATION 8.5.1 Draining Condensate 8.4 Shutting Down the Transmitter 1) Gradually open the drain screw or drain plug and Shut down the transmitter as follows. drain the transmitter pressure-detector section. (See Steps 2) and 3) are specific to the differential pressure figure 8.5.1) transmitters.
9. MAINTENANCE MAINTENANCE 9.1 Overview 9.2 Calibration Instruments Se- lection WARNING Table 9.1 lists the instruments that can be used to calibrate a transmitter. When selecting an instrument, Since the accumulated process fluid may be consider the required accuracy level. Exercise care toxic or otherwise harmful, take appropriate care when handling these instruments to ensure they to avoid contact with the body or inhalation of...
0.1% or higher level, there may be difficulties in calibration to this level in the field. For calibration to the 0.1% level, contact Yokogawa representatives from which the instrument was purchased or the nearest Yokogawa office.
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9. MAINTENANCE Supply pressure Pressure source Using pressure Using pressure generator source with manometer Model MT220 Pressure generator precision digital manometer Low pressure side Low pressure side Reference pressure Reference pressure open to atmosphere open to atmosphere High pressure side High pressure side Power Power...
T0902E.EPS indicator removed, or from adding an integral indicator to a transmitter. If such modification is CAUTION absolutely required, contact Yokogawa. Precautions for ATEX Flameproof Type Transmitters This subsection describes the procedure for replacing • Flameproof type transmitters must be, as a an integral indicator.
9. 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 connector) and RTD input terminal cable (with blue Press forward connector).
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2) Install the cover flange on the high pressure side, one of a different measurement range, contact and use a torque wrench to tighten the four nuts Yokogawa. uniformly to a torque shown below. The user is permitted, however, to replace a...
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. 9.5.1 Basic Troubleshooting First determine whether the process variable is actually abnormal or a problem exists in the measurement system.
Is zero point adjusted correctly? Is there continuity through the transmitter loop wiring? Do the loop numbers Adjust the zero point. match? Find/correct broken conductor or wiring error. Contact Yokogawa service personnel. F0909E.EPS Contact Yokogawa service personnel. F0908E.EPS IM 01C25R01-01E...
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Refer to Section 9.2 when selecting instruments for calibration. Refer to Section 9.2 when selecting instruments for calibration. Is output adjusted correctly? Is output adjusted correctly? Adjust the output. Adjust the output. Contact Yokogawa service personnel. Contact Yokogawa service personnel. F0910E.EPS F0911E.EPS IM 01C25R01-01E...
9. MAINTENANCE 9.5.3 Alarms and Countermeasures Table 9.3 Alarm Message Summary (HART protocol type) Integral HART 4-20mA Output Status Cause Countermeasure indicator communicator display operation during error group AL. 01 P sensor error Sensor problem. Outputs the signal (High or Low) Replace capsule if the CAP.ERR set with burnout direction switch.
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9. MAINTENANCE Integral HART 4-20mA Output Status Cause Countermeasure indicator communicator display operation during error group AL. 50 Illegal P LRV Specified value is outside of Holds at the output value that Check settings and P. LRV setting range. existed immediately before the change them as error occurred.
10. GENERAL SPECIFICATIONS 10. GENERAL SPECIFICATIONS Failure Alarm “ ” 10.1 Standard Specifications Analog output status at CPU failure and hardware error Refer to IM 01C25R03-01E for FOUNDATION Up-scale: 110%, 21.6 mA DC or more (standard) Fieldbus protocol type marked with “ ” Down-scale: –2.5%, 3.6 mA DC or less Performance Specifications See General Specifications sheet, GS 01C25R01-01E.
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10. GENERAL SPECIFICATIONS Damping Time Constant (1st order) EJXMVTool (For HART Protocol type): Mass Flow configuration Software Model FSA210. (Refer to GS Amplifier damping time constant is adjustable from 01C25R50-01E) 0.00 to 100.00 seconds and added to response time, applicable for DP, SP, ET, and flow independently. FSA210 software package is used to perform mass flow configuration for the EJX910A.
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10. GENERAL SPECIFICATIONS Communication Requirements “ ” Minimum Pressure Limit See graph below (Safety approvals may affect electrical require- ments.) 100(14.5) Atmospheric pressure HART Working Communication Distance pressure kPa abs Up to1.5 km (1 mile) when using multiple twisted pair (psi abs) cables.
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10. GENERAL SPECIFICATIONS Cable for RTD External Temperature Input Code -1, -2, -3, -4 Oil-proof and a heat-resistant cable with a shield Outside diameter: 8.5 mm (0.335 inch), Voltage rating: 300V Temperature rating: –40 to 105 C (–40 to 221 F) Flame resistance: UL (CSA) VW-1, Adaptation standard: UL (CSA) AWM STYLE 2517...
10. GENERAL SPECIFICATIONS 10.2 MODEL AND SUFFIX CODES MODEL AND SUFFIX CODES Model Suffix Codes Description EJX910A Multivariable transmitter · · · · · · · · · · · · · · · · · · · · · · · · · Output signal -E ·...
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10. GENERAL SPECIFICATIONS Table 10.4 Recommended External Temperature Cable External Temperature Input Code -1, -2, -3, -4 -B, -C, -D ✓ ✓ General Application ✓ ✓ Factory Mutual (FM) Nonincendive ✓ Explosionproof Approval ✓ Intrinsically safe Approval ✓ CENELEC ATEX Type N ✓...
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–50 to 70 C (–58 to 158 F) for T6 CSA Intrinsically safe Approval — Combined CF1 and CS1 — T1012E.eps Contact Yokogawa representative for the codes indicated as ‘—’ Applicable for electrical connection code 2 and 7. 10-7 IM 01C25R01-01E...
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10. GENERAL SPECIFICATIONS Item Description Code Amplifier cover only Color change Painting Amplifier cover and terminal cover, Munsell 7.5 R4/14 Coating change Anti-corrosion coating Transmitter power supply voltage: 10.5 to 32 V DC Lightning protector Allowable current: Max. 6000 A ( 1 40 s ), Repeating 1000 A ( 1 40 s ) 100 times Applicable Standards: IEC 61000-4-4, IEC 61000-4-5 Degrease cleansing treatment Oil-prohibited use...
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10. GENERAL SPECIFICATIONS Bottom Process Connection Type (Installation code B) Unit : mm (approx.inch) 95 (3.74) 188 (7.40) (2.13) Zero Conduit connection (3.11) 110 (4.33) adjustment (For RTD) (0.23) Conduit connection (0.47) (1.54) Electrical connection code 9 External temp. input code 0 Mounting (4.84) Integral...
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REVISION RECORD Title: EJX910A Multivariable Transmitters Manual No.: IM 01C25R01-01E Edition Date Page Revised Item May. 2005 — New publication June 2006 — Add information for FOUNDATION fieldbus protocol type. Add comments for fieldbus in ‘NOTE’ 2.5.2 Correct errors in the formula. Correct errors in Table 2.8 Add WARNING for fieldbus and external temperature input cable.
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