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Oval 50 Instructions Manual

High temp./low temp. service and jacketed smart ultra oval flowmeters, cooling tube provided
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B-49-4N-E
Ins. No.
High Temp./Low Temp. Service and Jacketed
SMART ULTRA OVAL FLOWMETERS
Meter Sizes 50, 52, 53, 55, 56, and 57
Meter size 50
Cooling tube provided
Meter sizes 52, 53, 55, 56
Heating tube provided
Meter size 57
Cooling tube provided
Every SMART ULTRA OVAL is fabricated and shipped from our factory under stringent quality control. In
order to maintain its design performance throughout the life of the meter, this manual offers the operator the
necessary installation, operation and maintenance information.
Be well familiar with these instructions before you place the meter in service and keep this manual at the field
location for ready reference.
The standard, high temperature-service, low temperature-service, and jacketed type meters all have in
common the same specifications described in this instruction manual except for some differences in the
jacketed type on its piping procedure and operating precautions. Be careful to observe the instructions given
with a reminder "See also page 5 for the jacketed type".
◆ About Meter Size Designation ◆
The size of OVAL positive-displacement flowmeters is basically identified by a two-digit code. For complete
details, see Section 7 PRODUCT CODE EXPLANATION.


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Summary of Contents for Oval 50

  • Page 1 Meter size 57 Cooling tube provided Every SMART ULTRA OVAL is fabricated and shipped from our factory under stringent quality control. In order to maintain its design performance throughout the life of the meter, this manual offers the operator the necessary installation, operation and maintenance information.

  • Page 2: Table Of Contents

    9.5 Piping Instructions and Operating Precautions of Jacketed Meters ...........5 10. DISASSEMBLY AND INSPECTION ....................16 0. Size 50 Meter Body Disassembly and Inspection ..............6 0.2 Size 50 Meter Body Assembly Procedure .................7 0.3 Sizes 52, 53, 55, 56, 57 Meter Body Disassembly and Inspection ..........8 0.4 Sizes 52, 53, 55, 56, 57 Meter Body Assembly Procedure ............9...
  • Page 3 13. TROUBLESHOOTING ........................23 14. EXPLODED VIEWS AND PARTS LIST ..................24 4. Meter Size 50 Exploded View and Parts List ................24 4.2 Meter Sizes 52 and 53 Exploded View and Parts List ...............25 4.3 Meter Sizes 55 and 56 Exploded View and Parts List ...............26 4.4 Meter Size 57 Exploded View and Parts List ................27...

  • Page 4: Before You Begin

    If your Smart Ultra OVAL is stored for long periods of time upon receipt before installation, unexpected faulty conditions could result. If a long-term storage is anticipated, take the following precautions: () Keep your Smart Ultra OVAL in store in the same shipping container used for transportation from OVAL if possible.

  • Page 5: Structural Considerations

    2. OPERATING CONDITIONS To maintain the stated high accuracy and long MADE IN JAPAN MNPJ-237 ULTRA OVAL OVAL Corporation service life of SMART ULTRA OVAL flowmeter, MODEL make sure that flowrate, pressure, temperature and TAG. No MAX PRESS. viscosity are within the ratings as stamped on the FLOW RANGE meter register nameplate.

  • Page 6: General Description

    NOTE: With the use over an extended period of time, meter error will deviate more or less from the initial point. Upon request, we may conduct an instrumental error testing once again and establish a "new meter factor" in the scaler when your Smart Ultra OVAL is returned to the factory for periodic inspection or for other reasons.

  • Page 7: Lcd Counter Display

    B-49-4N-E 5. LCD COUNTER DISPLAY 5.1 About "MODE" Switch Removing the selector magnet inserted at the bottom of the register, apply it to the label "MODE" on the LCD counter face and the display will scroll forward through the available readings as shown in Fig.

  • Page 8: Total Counter Reset

    B-49-4N-E 5.4 Total Counter Reset Displayed total flow can be reset either by the display select switch SW (see Fig. 11.1 on page 20) or through communications with the Smart Communication Unit. It your option is through communications, follow the instructions outlined in the Smart Communication Unit EL230 (or HHC: EK0) instruction manual. NOTE: Show "Measure"...

  • Page 9: Installation

    (6) The strainer should be located upstream of, and as close to the meter as possible. (7) Since the sensor in the Smart Ultra OVAL operates on the principle of sensing changes in magnetic flux density, it must be isolated from the influence of any external magnetic flux. In order to minimize the...

  • Page 10: How To Change Flow Directions

    To reverse the flow direction, change the orientation of both the register and flowmeter body to the new flow direction. Sizes 52, 53, 55, 56, 57 Size 50 () Take off four hex socket head screws (M6) with hex wrench. CAUTION 1.

  • Page 11: Wiring Instructions

    It is recommended that their shield be grounded at the receiving instrument. CAUTION: In case of TIIS explosionproof type used under the ambient temperature of 50°C or higher, use a cable resistant to the temperature of 70°C or higher. (2) Transmission length The maximum transmission length is typically one kilometer.

  • Page 12: Preamplifier-To-Receiving Instrument Hookup

    The 2-wire signal transmission system used in this flowmeter furnishes DC power to the meter. It serves as the power line and signal line as well with pulse or analog current output. An OVAL receiving instrument can be coupled directly, but instruments in general which are designed to accept a voltage signal input require a load resistor R connected in series for voltage conversion.

  • Page 13: Operating Instructions

    B-49-4N-E 9. OPERATING INSTRUCTIONS 9.1 Operation "See also page 15 for the jacketed type". At first-time operation, carefully operate in the following sequence, allowing the flow within the flow range specified. (Refer to the piping diagram below.) METER VALVE FLOW DIRECTION Ｂ...

  • Page 14: Precautions At Operation Shutdown

    B-49-4N-E (3) Liquids of low steam pressure Temperature and pressure of LPG, polyvinyl chloride monomers or anything with low viscosity and low TAKE PRECAUTIONS steam pressure that are too ready to vaporize should AGAINST BEARING SEIZURE! strictly be controlled. During operation, the temperature of bearings in the meter is usually higher than that of the metered fluid.

  • Page 15: Piping Instructions And Operating Precautions Of Jacketed Meters

    B-49-4N-E CAUTION 9.5 Piping Instructions and Operating Precautions of Jacketed Meters Hot water or steam jacketed meters require piping work in the following manner: () Piping to the meter body remains the same as that of standard meters (meters not jacketed). (2) Adhere to the following instructions for the piping to the jacket: Steam Jacketed Hot-water Jacketed...

  • Page 16: Disassembly And Inspection

    CAUTION: Be sure to deenergize before you disassemble. ◆ Meter Body Inspection ◆ Complaint and possible cause: Process fluid will not run. Jammed with scales, the oval rotors fail to rotate, resulting in an interrupted fluid flow. 10.1 Size 50 Meter Body Disassembly and Inspection...

  • Page 17: Size 50 Meter Body Assembly Procedure

    10.2 Size 50 Meter Body Assembly Procedure CAUTION: PRECAUTIONS BEFORE ASSEMBLY Oval rotors, inner walls of the rotor shafts, inner wall of the measuring chamber, inlet and outlet ports should be thoroughly washed clean, completely removing dust, grime and other foreign matter.

  • Page 18: Sizes 52, 53, 55, 56, 57 Meter Body Disassembly And Inspection

    When jacking the top cover off, turn the jacking screws evenly and alternately so that the top cover not slant. (5) Remove oval rotors and rotor shafts, in this order, from the measuring chamber and inspect them ROTOR SHAFT for condition. (The rotor shafts should be drawn out straight.)

  • Page 19: Sizes 52, 53, 55, 56, 57 Meter Body Assembly Procedure

    10.4 Sizes 52, 53, 55, 56, 57 Meter Body Assembly Procedure CAUTION: PRECAUTIONS BEFORE ASSEMBLY Oval rotors, inner walls of the rotor shafts, inner wall of the measuring chamber, inlet and outlet ports should be thoroughly washed clean, completely removing dust, grime and other foreign matter.

  • Page 20: Register Switch Functions And Parameter Setting

    B-49-4N-E 11. REGISTER SWITCH FUNCTIONS AND PARAMETER SETTING 11.1 Switch Names and Functions FRONT COVER HEX SOCKET HEAD BOLTS O-RING () Using a hex key, take off four hex socket head (2) Removing the front cover provides access to the bolts securing the front cover.

  • Page 21: Individual Test Pin Functions

    FWD and its waveform is one before unfactored output amplification. Accepts a square-wave pulse train from the pulse checker (OVAL Model PC220, for example). Used for analog full scale adjustment, loop check, or other servicing. Input mode is Model PC220's PG30 mode.

  • Page 22: Sensor Replacement Procedure

    B-49-4N-E NOTE: Size 55 meter body is shown here. The same procedure applies to other size 12. SENSOR REPLACEMENT PROCEDURE models. HEX SOCKET REGISTER REGISTER SKIRT HEAD BOLTS ASSEMBLY ASSEMBLY (2) Carefully draw the register assembly out. Exercising care () Take off four hex socket head screws on the register. not to bump the sensor against adjacent components, draw it out in the horizontal direction.

  • Page 23: Troubleshooting

    5. Oval rotors installed the wrong way. 5. Refer to 0.2 Meter Assembly Procedure in the "Disassembly and Inspection", and reassemble correctly. 6. Sensor installed out of position.

  • Page 24: Exploded Views And Parts List

    B-49-4N-E 14. EXPLODED VIEWS AND PARTS LIST 14.1 Meter Size 50 Exploded View and Parts List - When you order replacement parts, specify the stock No., flowmeter model, instruction manual No., symbol No., part name and the quantity desired. EXPLODED VIEW...

  • Page 25: Meter Sizes 52 And 53 Exploded View And Parts List

    B-49-4N-E 14.2 Meter Sizes 52 and 53 Exploded View and Parts List - When you order replacement parts, specify the stock No., flowmeter model, instruction manual No., symbol No., part name and the quantity desired. EXPLODED VIEW 700A 700B 154 156 4 PARTS LIST, Meter Sizes 52 and 53 Size 52 Size 53...

  • Page 26: Meter Sizes 55 And 56 Exploded View And Parts List

    B-49-4N-E 14.3 Meter Sizes 55 and 56 Exploded View and Parts List - When you order replacement parts, specify the stock No., flowmeter model, instruction manual No., symbol No., part name and the quantity desired. EXPLODED VIEW 700A 700B 154 156 PARTS LIST, Meter Sizes 55 and 56 Size 55 Size 56...

  • Page 27: Meter Size 57 Exploded View And Parts List

    B-49-4N-E 14.4 Meter Size 57 Exploded View and Parts List - When you order replacement parts, specify the stock No., flowmeter model, instruction manual No., symbol No., part name and the quantity desired. EXPLODED VIEW 700A 700B 154 156 PARTS LIST, Meter Sizes 57 Symbol No.

  • Page 28: General Specifications

    External Finish Meter body and rear cover: Not painted; Skirt: Painted *: Size 50 operates in a range -30 to + 60° C (low temp. service) or +20 to + 200°C (high temp. service). Max. Operating Pressure per Flange Rarting ●...

  • Page 29: Outline Dimensions

    B-49-4N-E 16. OUTLINE DIMENSIONS Unit: mm Cooling tube Heating tube RESET RESET MODE MODE MODE ×10 ml b1 ： ×1 1/h b2 ： ×10 s1/sis CABLE ENTRY G1/2 (Output signal type) () 0K TYPE DIMENSIONS Size Flange Rating L (face-to-face) B (overall) Approx.

  • Page 30: Product Code Explanation

    ㉔ ㉕ ㉖ / / / Additional code Main code Main code (Meter model: 50, 52, 53, 55, 56, 57) ● ① ② ③ Model ⑯ Regulations L U S ULTRA OVAL (integral type) Single case all stainless 0 Standard...
  • Page 31 H P 4 Other than toxic or flammable gas D C E Final DWG (English) D P J Calculation sheet (Japanese) Accuracy R 0 5 ±0.50% ACCURACY D P E Calculation sheet (English) L 0 1 ±0.15% LINEARITY ※Only for export S E J Instrumental error test report (Japanese) L 0 3 ±0.35% LINEARITY...
  • Page 32 B-149-4N-E 2018.04 Revised△ 1998.12 Released All specifications are subject to change without notice for improvement. B-149-4N-E (1)

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