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Oval EL4401 Instructions Manual

Blend oil temperature compensated flow computer
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BLEND OIL TEMPERATURE COMPENSATED
FLOW COMPUTER
This manual has been prepared to provide you with the information pertinent to the Blend Oil
Temperature Compensated FLOW COMPUTER.
With the proper application of the information and knowledge contained in this manual, you can expect
the best possible results over a long service life of this instrument. Keep this manual for ready reference.
It is suggested that the instruction manuals for the companion pulse generator (flowmeter) and receiving
instrument be referred to at the same time.
E-887-3N-E
Ins. No.
Model : EL4401


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Summary of Contents for Oval EL4401

  • Page 1 Ins. No. BLEND OIL TEMPERATURE COMPENSATED FLOW COMPUTER Model : EL4401 This manual has been prepared to provide you with the information pertinent to the Blend Oil Temperature Compensated FLOW COMPUTER. With the proper application of the information and knowledge contained in this manual, you can expect the best possible results over a long service life of this instrument.

  • Page 2: Table Of Contents

    E-887-3N-E TABLE OF CONTENTS . BEFORE YOU BEGIN ...........................  . Confirming the Nameplate ...................... . Transportation Precautions ...................... .3 Storage Precautions ........................ . GENERAL ............................ . Features ............................ . Part Names ...........................  3. INSTALLATION ...........................  3. Outline Dimensions ........................
  • Page 3 E-887-3N-E COMPANION VOLUME KEY OPERATION MANUAL Ins. No. E-880TM-E CONTENTS . KEY ARRANGEMENT ......................0 . DISPLAY SCREEN ........................  3. INITIAL CHECK ........................ . MODE SELECTION ......................8 . RUN MODE SCREEN ......................3 . SET MODE ..........................3 7.

  • Page 4: Before You Begin

    E-887-3N-E 1. BEFORE YOU BEGIN Every OVAL product is thoroughly tested and inspected before shipment from our factory. When received, its appearance should be inspected for possible damage by rough handling during transit. First of all, thoroughly read the handling precautions described in this section. For topics other than those covered in this section, refer to the respective sections of this manual.

  • Page 5: General

    In response to the flowrate, temperature, and blend ratio information arriving from the OVAL flowmeter, it converts the flowrate to the equivalent volume flowrate under standard conitions and totalizes the flow.

  • Page 6: Installation

    E-887-3N-E 3. INSTALLATION 3.1 Outline Dimensions All dimensions in millimeters Hold-down Fitting 232.4 Fig. 3. Outline Dimensions 3.2 Installation 3.2.1 Installation Location Select an installation site where: Min.120 () Mechanical vibration, shock and corrosive gases are negligible. () Air is dry and temperature at room temperature and stable.

  • Page 7: Wiring

    E-887-3N-E 4. WIRING (See the "Wiring Guidelines" in the instruction manual of the companion pulse generator.) 4.1 Field Wiring Cables () Use electrostatically shielded, polyethylene insulated, vinyl sheathed control cables (CEVS, . to  mm, -conductor or 3-conductor), or equivalent, for input signal cables from the flowmeter. For output signal cables, use insulated vinyl sheathed cables (CVV, CVS ...
  • Page 8 E-887-3N-E Table . Terminal Connections Label Description Label Description SUP. 3-wire generator -wire generator SIG. （＋）  to 0mADC/ to VDC Flow in （−） Output sync with （＋） input signal (O.C.) OUT / ＋ Corrected instant flowrate Analog out  to 0mADC/ to VDC －...

  • Page 9: General Specifications

    E-887-3N-E 5. GENERAL SPECIFICATIONS Table . Item Description Pulse Speed of Signal name Power to generator generator response 8V -wire current pulse OPTO 0, 0 8.VDC kHz Contact closure pulse PG0 0Hz 3.VDC PG30, Allowable -wire, VDC 3-wire current Voltage pulse Flow input NPG0A (F) 0mA app.

  • Page 10: Internal Components And Functions

    E-887-3N-E 6. INTERNAL COMPONENTS AND FUNCTIONS 6.1 Front Panel 6.1.1 Display The display is a 8 × 8-dot multiple function display capable of showing the data, units of measure, error messages, and other information at the same time. (The display is backlighted.) 6.1.2 On-Screen Menu Items The units of measurement vary with configuration.

  • Page 11: Front Panel Keypad

    E-887-3N-E 6.1.3 Error Messages When an erratic condition arises, an error message automatically appears on the display. (The information represented by error messages are listed on page .) If two or more concurrent errors are involved, individual messages will be scrolled at intervals of approximately 3 seconds.

  • Page 12: Calculation Formulas

    E-887-3N-E 7. CALCULATION FORMULAS 7.1 Implementation of Meter Error Correction (Total flow before correction) = a×Ip× 〔 + 　　 〕 ×ε where Q : Total flow corrected for meter error ［ l］ a : Meter factor ［l/P］ Ip : Number of input pulses E : Meter error correction value ［%］...

  • Page 13: Implementation Of Temperature Correction On Petroleums (Corrected Total Flow)

    E-887-3N-E 7.2 Implementation of Temperature Correction on Petroleums (Corrected total flow) Correction factor in the implementation of temperature error correction on petroleum products is given by the formula 　　　　 　V.C.F = exp [－α Δt (.0 + 0.8αTΔt) / (f + (K ) α...

  • Page 14: Preparational Checks And Operation

    E-887-3N-E 8. PREPARATIONAL CHECKS AND OPERATION 8.1 Preparation Before Operation () Ensure that the instrument and related equipment are correctly installed and wired with no place left unfinished. WARNING: Make sure to see that the power terminals are connected to a power source of the rated voltage.

  • Page 15: Troubleshooting

    E-887-3N-E 9. TROUBLESHOOTING Reminder: If internal trouble is suspected, seek our service at the nearest sales office or customer service representative in your area. Table . Symptom Check Possible Causes Display is dead. . Inspect fuse. . Fuse is blown. .

  • Page 16: Error Messages

    E-887-3N-E 10. ERROR MESSAGES Table 0. List of Error Messages Error Message Description ADJUST DATA ERROR Adjusted allowable range check error A/D CONVERT ERROR A/D converter circuit error DENSITY CONVERT ERROR Density converter circuit error TEMP . (PT) OVER Temperature Pt input  overflow TENP .

  • Page 17: Overall Block Diagram

    E-887-3N-E 12. OVERALL BLOCK DIAGRAM...

  • Page 18: Product Code Explanation

    E-887-3N-E 13. PRODUCT CODE EXPLANATION Output item 1 affix code Output item 2 Output item 1 Output item 2 affix code Output item 3 Blend input Output item 3 affix code Density input Output item 4 Pressure input Analog output hard Temp.
  • Page 19 E-887-3N-E Output item 1 affix code Output item 2 Output item 1 Output item 2 affix code Output item 3 Blend input Output item 3 affix code Density input Output item 4 Pressure input Analog output hard Temp. input Input pulse signal Communication function Version code Power supply...
  • Page 20 E-887-3N-E 2018.01 Revised△ 2008.08 Released All specifications are subject to change without notice for improvement. E-887-3N-E (1)

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