User’s Manual EJA Series Differential Pressure and Pressure Transmitters Installation Manual CD-ROM included IM 01C22A01-01E 1. Introduction 1.1 1.2 1.3 2. Handling Cautions 2.1 2.2 2.3 2.4 2.5 2.6 2.7 3. Mounting................................................................... 15 Mounting the Diaphragm Seals ............................... 15 Diaphragm Seals Installation Consideration............ 16 Affixing the Teflon Film .............................................
1 <1. Introduction> 1. Introduction Thank you for purchasing the DPharp electronic pressure transmitter. This manual provides the basic guidelines for installation and wiring procedures of the DPharp EJA Series with BRAIN and HART protocols. It does not provide the product specific functional specifications and explanations, maintenance, troubleshooting, and fieldbus communication operating procedures, both FOUNDATION FieldbusTM and PROFIBUS PA.
2 <1. Introduction> CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices. IMPORTANT Indicates that operating the hardware or software in this manner may damage it or lead to system failure. NOTE Draws attention to information essential for understanding the operation and features. Direct current 1.
<1. Introduction> 3 • Responsible party for repair cost for the problems shall be determined by Yokogawa based on our investigation. • The Purchaser shall bear the responsibility for repair costs, even during the warranty period, if the malfunction is due to: - Improper and/or inadequate maintenance by the purchaser. - Failure or damage due to improper handling, use or storage which is out of design conditions.
<1. Introduction> 1.3 4 ATEX Documentation This is only applicable to the countries in European Union.
5 <2. Handling Cautions> 2. Handling Cautions When the transmitter is delivered, visually check them to make sure that no damage occurred during shipment. Also check that all transmitter mounting hardware shown in Figure 2.1 is included. If the transmitter was ordered without the mounting bracket or without the process connector, the transmitter mounting hardware is not included. Table 2.
6 <2. Handling Cautions> (b) Ambient Atmosphere Avoid installing the transmitter in a corrosive atmosphere. If the transmitter must be installed in a corrosive atmosphere, there must be adequate ventilation as well as measures to prevent intrusion or stagnation of rain water in conduits. (c) Shock and Vibration Select an installation site suffering minimum shock and vibration (although the transmitter is designed to be relatively resistant to shock and vibration).
7 <2. Handling Cautions> • Intrinsically Safe for Class I, Division 1, Groups A, B, C & D. Class II, Division 1, Groups E, F & G and Class III, Division 1 Hazardous Locations. • Nonincendive for Class I, Division 2, Groups A, B, C & D. Class II, Division 2, Groups E, F & G and Class III, Division 1 Hazardous Locations. • Outdoor hazardous locations, NEMA 4X. • Temperature Class: T4 • Ambient temperature: –40 to 60°C Note 3.
8 <2. Handling Cautions> Note 3. Operation • Keep the “CAUTION” nameplate attached to the transmitter. CAUTION: OPEN CIRCUIT BEFORE REMOVING COVER. FACTORY SEALED, CONDUIT SEAL NOT REQUIRED. INSTALL IN ACCORDANCE WITH THE INSTRUCTION MANUAL IM 1C22. • Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location.
9 <2. Handling Cautions> • Temperature Class: T6, T5, and T4 • Process Temperature: 85°C (T6), 100°C (T5), and 120°C (T4) • Ambient Temperature: –40 to 80°C • Supply Voltage: 42 V dc max. • Output Signal: 4 to 20 mA 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.
10 <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 barrier used output current must be limited by a resistor 'R' such that Io=Uo/R. • The safety barrier must be IECEx certified.
11 <2. Handling Cautions> Note 3. Operation • WARNING: AFTER DE-ENERGIZING, DELAY 10 MINUTES BEFORE OPENING. • 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.
12 <2. Handling Cautions> 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. [Installation Diagram] Hazardous Location (Zone 2 only) Transmitter Non-hazardous Location + + – – Supply c.
13 <2. Handling Cautions> (4) Operation WARNING • OPEN CIRCUIT BEFORE REMOVING COVER. INSTALL IN ACCORDANCE WITH THIS USER’S MANUAL • Take care not to generate mechanical sparking when access to the instrument and peripheral devices in hazardous locations. 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. TOKYO 180-8750 JAPAN: The manufacturer name and the address*2.
14 <2. Handling Cautions> (2) Technical Data 2.7 • Models without /PE3 Article 3, Paragraph 3 of PED, denoted as Sound Engineering Practice (SEP) . • Models with /PE3 Module: H Type of Equipment: Pressure Accessory - Vessel Type of Fluid: Liquid and Gas Group of Fluid: 1 and 2 Model EJA110A PS*1 (bar) V(L) PS-V (bar-L) Category*2 160 0.01 1.6 Article 3, paragraph 3 (SEP) EJA120A 0.5 0.01 0.005 Article 3, paragraph 3 (SEP) EJA130A 420 0.01 4.
15 <3. Installation> 3. Installation IMPORTANT • When welding piping during construction, take care not to allow welding currents to flow through the transmitter. • Do not step on this instrument after installation. • For EJA430A, the atmospheric opening is located on the low pressure side cover flange. For EJA530A with Measurement span code A, B, and C, the pipe is attached for the opening. These openings must not face upward.
16 <3. Installation> 3.2.1 EJA210A and EJA220A 3.3 The transmitter is mounted on a process using its high pressure side flange as shown in Figure 3.5. The customer should prepare the mating flange, gasket, stud bolts and nuts. Gasket Nut F0305.ai EJA210A and EJA220A Mounting 3.2.2 EJA118 and EJA438 Mount the diaphragm seals using the flanges as shown in Figure 3.6. The customer should prepare the mating flange, gasket, bolts and nuts.
17 <3. Installation> Low pressure side IMPORTANT The transmitter should be installed below the high pressure (HP) process connection to ensure a positive head pressure of fill fluid. The recommended height between the HP process connection and the transmitter is show in the following table. Pay special attention to vacuum applications.
18 <3. Installation> 3.5 Rotating Transmitter Section The transmitter section can be rotated in 90° segments. 1) Remove the two Allen screws that fasten the transmitter section and capsule assembly, using the Allen wrench. Also, remove the pipe for EJA530A with Measurement span code A, B, and C, using the slotted screwdriver. 2) Rotate the transmitter section slowly in 90° segments. 3) Tighten the two Allen screws to a torque of 5 N·m.
19 <4. Installing Impulse Piping> 4. 4.1 Installing Impulse Piping Impulse Piping Installation Precautions The impulse piping that connects the process outputs to the transmitter must convey the process pressure accurately. If, for example, gas collects in a liquid filled impulse piping, or the drain of a gas-filled impulse piping becomes plugged, the impulse piping will not convey the pressure accurately.
20 <4. Installing Impulse Piping> 4) Now tighten the nuts and bolts securely in the following sequence: Process connector bolts → transmitter-end ball head lock nuts → 3-valve manifold ball head lock nuts → 3-valve manifold mounting bracket U-bolt nuts Direct-Mounting Type 3-Valve Manifold 1) Mount the 3-valve manifold on the transmitter. (When mounting, use the two gaskets and the four bolts provided with the 3-valve manifold. Tighten the bolts evenly.
21 <4. Installing Impulse Piping> (5) Condensate Pots for Steam Flow Measurement If the liquid in the impulse piping repeatedly condenses or vaporizes as a result of changes in the ambient or process temperature, this will cause a difference in the fluid head between the high pressure and low pressure sides. To prevent measurement errors due to these head differences, condensate pots are used when measuring steam flow.
22 <4. Installing Impulse Piping> 4.3 Process Piping Installation Precautions 4.3.1 Connecting Process Piping to the Transmitter (1) Confirming the Process Fluid Flow Direction The mark “ ” on the manifold indicates the direction in which the process fluid is flowed (from right to left). When connecting the process piping to the process connector, confirm the process fluid flow direction.
23 <5. Wiring> 5. Wiring 5.2 NOTE For FOUNDATION Fieldbus and PROFIBUS PA communication types, please refer to manuals in the attached CD-ROM. 5.1 Connections of External Wiring to Terminal Box 5.2.1 Power Supply Wiring Connection Connect the power supply wiring to the SUPPLY + and – terminals. Transmitter terminal box Wiring Precautions + Power supply – IMPORTANT Shrouding Bolt Shrouding Bolt F0501.ai F0502.ai Figure 5.1 Power Supply Wiring Connection 5.2.
24 <5. Wiring> 5.3.1 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. The transmitter and distributor are connected as shown below. For details of the power supply voltage and load resistance, see Section 5.6. Drain plug F0506.ai Figure 5.5 Non-hazardous Location Transmitter terminal box Distributor (Power supply unit) – F0504.ai Figure 5.
25 <5. Wiring> 2) Insert the cable through the union cover, the union coupling, the clamp nut, the clamp ring, the gland, the washer, the rubber packing, and the packing box, in that order. 3) Insert the end of the cable into the terminal box. 4) Tighten the union cover to grip the cable. When tightening the union cover, tighten approximately one turn past the point where the cable will no longer move up and down. Proper tightening is important.
26 <6. Operation> 6. Operation Output Status Setting at CPU Failure NOTE For FOUNDATION Fieldbus and PROFIBUS PA communication types and for the transmitter operating confirmation and zeroing by any communication method, refer to manuals in the attached CD-ROM for further information. Set the burn-out direction as shown in the figures below. The direction is set to the H side for delivery unless option code /C1 is specified in the order. For option code /F1, the output signal for down-scale is -2.
<6. Operation> 6.2 27 Zero Point Adjustment Adjust the zero point after operating preparation is completed. IMPORTANT Do not turn off the power to the transmitter immediately after a zero adjustment. Powering off within 30 seconds after a zero adjustment will return the adjustment back to the previous settings. Using the Transmitter Zero-adjustment Screw Use a slotted screwdriver to turn the zero-adjustment screw.
28 <7. Errors and Countermeasures> 7. Errors and Countermeasures NOTE For FOUNDATION Fieldbus and PROFIBUS PA communication types, please refer to manuals in the attached CD-ROM. The table below shows a summary of error messages for BRAIN and HART protocols. Table 7.1 Integral Indicator Display Error Message Summary Description Cause Output Operation during Error Countermeasure None GOOD --- ERROR Er. 01 CAP MODULE FAULT Capsule problem.
29 <8. Parameter Summary> 8. Parameter Summary IMPORTANT NOTE 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. For FOUNDATION Fieldbus and PROFIBUS PA communication types, please refer to manuals in the attached CD-ROM.
30 <8. Parameter Summary> BRAIN Communication Parameter List Instruments to which applicable: F: Differential pressure transmitters: EJA110A, EJA120A, EJA130A, EJA118W, EJA118N, EJA118Y, and EJA115 P: Pressure transmitters: EJA310A, EJA430A, EJA440A, EJA510A, EJA530A, EJA438W, and EJA438N L: Liquid level transmitters: EJA210A and EJA220A No. 01 02 03 A A10 A11 A20 A21 A30 Item MODEL TAG NO. SELF CHECK DISPLAY OUTPUT (%) ENGR.
31 <8. Parameter Summary> No. Item Description D30 TEMP UNIT D31 STAT. P. UNIT Temperature setting units Static pressure setting units D40 REV OUTPUT Output reversal D45 H/L SWAP Impulse piping accessing direction CPU error Hardware error D52 BURN OUT D53 ERROR OUT D60 E E10 E14 E15 E30 E50 SELF CHECK AUX SET 2 DFS MODE TEMP SELECT TEMP ZERO BI DIRE MODE AUTO RECOVER SELF CHECK ADJUST ZERO ADJ ZERO DEV. SPAN ADJ EXT.
32 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. General 3.
33 (1) A safety barrier which meets the combination requirements by referring to its safety rating and combination parameters shall be selected. (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.
34 Installation and Operating Precautions for TIIS Flameproof Equipment Apparatus Certified Under Technical Criteria (IEC-compatible Standards) 1. General (4) Path length of joint surface The following describes precautions on electrical apparatus of flameproof construction (hereinafter referred to as flameproof apparatus) in explosion-protected 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.
36 Revision Information Title Manual No. : EJA Series Differential Pressure and Pressure Transmitters Installation Manual : IM 01C22A01-01E Edition Date 1st Jan. 2008 2nd Oct.2008 Page Revised Item New publication 12 13 28 29 2.4.4 Change explosion protection marking for type n from EEx to Ex. 2.5 Update EMC conformity standards. 7. Modify descriptions and notes for Er.01. 8. Add new parameters.
EJA Series Electronic User’s Manual IM 01C22A11-01E 㨇System Requirements㨉 㧦 Microsoft Windows 2000 (Professional) / XP (Professional) 㧦 Pentium 300 MHz or higher 㧦 128 MB or more 㧦 800 × 600 SVGA or higher, 256 colors OS CPU RAM Display for Windows 㨇Contents㨉 This CD-R contains information in PDF format that is necessary for safe and effective operation of the product.
YOKOGAWA ELECTRIC CORPORATION Headquarters 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPAN Branch Sales Offices Nagoya, Osaka, Hiroshima, Fukuoka, Sapporo, Sendai, Ichihara, Toyota, Kanazawa, Okayama, and Kitakyusyu. YOKOGAWA CORPORATION OF AMERICA 2 Dart Road, Newnan, Georgia 30265-1094, U.S.A. Phone : 1-800-888-6400 Fax : 1-770-254-0928 YOKOGAWA EUROPE B. V.
