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Oval EX DELTA II Instruction Manual

Battery powered vortex flowmeters
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See also: Instruction Manual , Manual
Battery Powered Vortex Flowmeters
EX DELTA Ⅱ, EX DELTA Ⅱ DIA
(Fixed/replaceable sensor and integrally/separately-mounted transmitter)
PAF5 type
Wafer type/Display
provided
(fixed sensor)
Separate-mount, flange type
(replaceable sensor)
Every OVAL product is fabricated and shipped from our factory under stringent quality control. In order to
maintain its design performance throughout its life, 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 for ready reference.
Flanged type/Display
provided
(fixed sensor)
Separate-mount, wafer type
(fixed sensor)
D
586
－
Ins. No.
Wafer type/Display
provided
(fixed sensor)
Separate-mount transmitter
Display provided
2
E
－
－
1

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  • Page 1 (fixed sensor) Display provided Every OVAL product is fabricated and shipped from our factory under stringent quality control. In order to maintain its design performance throughout its life, this manual offers the operator the necessary installation, operation and maintenance information. Be well familiar with these instructions before you place the meter in...

  • Page 2: Table Of Contents

    D-586-2-E CONTENTS 1. HANDLING PRECAUTIONS ......4 5.8 Close-Up Plug ..........34 1.1 Confirmation of Name Plate .......4 5.9 Replacement of External Cable Gland and 1.2 Transportation Guidelines ......5 Close-up Plug ...........34 1.3 Storage Guidelines ........5 5.10 Heat Retention Procedure ......35 1.4 Precautions for Operating Conditions ..5 5.11 Ambient Temperature ......35 1.5 General ............6 5.12 How to Change Display Angle ....35...
  • Page 3 D-586-2-E Shown in this manual are the signal words NOTE, CAUTION and WARNING, as described in the examples below: NOTE: Notes are separated from the general text to bring the user’s attention to important information. CAUTION: Caution statements signal the user about hazards or unsafe practices which could result in minor personal injury or product or property damage.

  • Page 4: Handling Precautions

    D-586-2-E 1. HANDLING PRECAUTIONS This product is delivered with the battery uncharged. Open the front lid and turn the power of product to be ON when start using. Power ON procedure is written on Item 3.2.2. The device is shipped out after sufficient inspection at our factory. Check appearance for any damage made during the transportation.

  • Page 5: Transportation Guidelines

    Pay attention to the items below if long time storage is expected in advance. (1) Store the equipment preferably in the packing status shipped from OVAL. (2) Select the storage location satisfying the conditions below; ● Location where not exposed to rain or water.

  • Page 6: General

    A piezoelectric sensor picks up the frequency of these vortices, used for flowrate measurement. EX DELTA II DIA, vortex flowmeter for liquid measurement, features high immunity against rust, adherence and depositions in the pipe. By significantly reducing the trouble common to other type flowmeters or conventional vortex flowmeters, It enables long and stable operation.

  • Page 7: General Specifications

    0° C due to temperature limitations of flange material. (*5): Max. operating temperature becomes 420° C in case of flameproof construction. (*6): Consult OVAL if measuring gas/steam in high pressure range (high Reynolds number: greater than 2.8x10^6). 2.2 EX DELTA Ⅱ DIA Sensor Specifications...
  • Page 8 D-586-2-E ● Flange Ratings and Maximum Operating Pressures (Mpa) Nominal Dia. 10 to 300mm (SUS316 or SCS14A) Flange Rating ASME/ ASME/ ASME/ JIS10K JIS16K JIS20K JIS30K JPI 150 JPI 300 JPI 600 PN10 PN16 PN25 PN40 Operating Temp. 120℃ and below 1.40 2.70 3.40...

  • Page 9: Indicated Units Of Measurement

    D-586-2-E 2.3 Indicated Units of Measurement 2.3.1 EX DELTA Ⅱ, Indicated Units of Measurement Shown in this table are the units of measurement indicated at volume flowrates. Nominal Dia. mm Max. flowrate, m Indicated units of Appli- Nominal meter factor, L/P (inch) (Pulse frequency, Hz) measurement (m...

  • Page 10: Transmitter Specifications

    D-586-2-E 2.4 Transmitter Specifications Item Contents Model PAF5 Flowmeter Integrated Type Mounting Structure Separated Type (2B (50A) pipe mounting), Max. 50m between Sensor and Transmitter Directive and EMC EN 61326-1; FCC 47 CFR part 15 (Applicable only for flowmeter integrated type) Standard RoHS EN 50581 Flameproof construction...

  • Page 11: Component Names And Functions

    D-586-2-E 3. COMPONENT NAMES AND FUNCTIONS 3.1 Component Names <Replaceable Sensor Type> <Fixed Sensor Type> (4) Transmitter (4) Transmitter (3) Adapter (2) Sensor (vortex pickup) (3) Adapter (Oscillating Probe (2) Sensor Spool) Probe (vortex pickup) (1) Body (1) Body Flow direction Flow direction Display Unit Optical Switch...

  • Page 12: Exploded Diagram And How To Turn The Meter On

    D-586-2-E 3.2 Exploded Diagram and How to Turn the Meter On 3.2.1 Exploded Diagram and Parts List ④ ⑧ ⑩ ⑪ ⑦ ② ③ ⑤ ⑨ ⑫ ① ⑥ Fig. 3.2: Exploded Diagram Name Quantity Name Quantity ① Front Lid ⑦...

  • Page 13: How To Turn The Meter On

    D-586-2-E 3.2.2 How to Turn the Meter On ① ⑤ ① ② ④ ④ ③ Fig. 3.3 Fig. 3.4 ① Front Lid Removal ② Taking Out Display Unit (1) Place the transmitter under the safe environment (1) Remove display unit ④ while paying attention (Under safe atmosphere in case of explosionproof to flat cable connector ⑤...

  • Page 14: Outline Dimensions

    D-586-2-E 3.3 Outline Dimensions ● EX DELTA Ⅱ (Unit: mm) Fixed Sensor Type/ Wafer Type (Model: VXW) ● Nominal Diameter: 10, 15 and 25mm φD φD Flow Flow direction direction [Transmitter Integrated Type] [Transmitter Separated Type] ● Nominal Diameter: 40 to 150mm Flow Flow direction...
  • Page 15 D-586-2-E ● EX DELTA Ⅱ (Unit: mm) Fixed Sensor Type / Flanged Type (Model: VXU) ● Nominal Diameter: 40 to 150mm Flow Flow direction direction [Transmitter Integrated Type] [Transmitter Separated Type] Approx. Weight (kg) Nominal φ d (main Flange Diameter, body inner Transmitter Transmitter...
  • Page 16 D-586-2-E ● EX DELTA Ⅱ (Unit: mm) Fixed Sensor Type / Flanged Type (Model: VXF) ● Nominal Diameter: 15 to 150mm 55 41 55 41 Flow Flow direction direction Flow Flow [Transmitter Integrated Type] [Transmitter Separated Type] direction direction 55 41 44 60 ●...
  • Page 17 D-586-2-E Approx. Weight (kg) Nominal φd Transmitter Transmitter Diameter, Flange rating (main body inner Transmitter Transmitter Integrated Integrated mm (inch) diameter) Separated Type Separated Type Type Type JIS 10K （16K） 85.5 JIS 20K 87.5 JIS 30K 92.5 11.2 10.3 ASME 150 100.5 JPI 150 37.6...
  • Page 18 D-586-2-E ● EX DELTA Ⅱ DIA (Unit: mm) Fixed Sensor Type / Wafer Type (Model: VXJ) ● Nominal Diameter: 15mm 55 41 55 41 55 41 Flow Flow direction direction Flow Flow Flow Flow direction direction direction direction [Transmitter Integrated Type] [Transmitter Separated Type] ●...
  • Page 19 D-586-2-E ● EX DELTA Ⅱ (Unit: mm) Replaceable Sensor Type / Flanged Type (Model: VXT) 55 41 44 60 Flow Flow direction direction [Transmitter Integrated Type] [Transmitter Separated Type] φd Approx. Weight (kg) Nominal Flange (main body Transmitter Transmitter Diameter, mm Transmitter Transmitter rating...
  • Page 20 D-586-2-E ● EX DELTA Ⅱ (Unit: mm) Replaceable Sensor Type / Flanged Type (Model: VXR) ● Nominal Diameter: 15 to 150mm 55 41 55 41 Flow Flow direction direction Flow Flow direction direction [Transmitter Integrated Type] [Transmitter Separated Type] ● Nominal Diameter: 200 to 300mm 44 60 55 41 44 60...
  • Page 21 D-586-2-E φd Approx. Weight (kg) Nominal (main body Transmitter Transmitter Diameter, Flange rating Transmitter Transmitter inner Integrated Integrated mm (inch) Separated Type Separated Type diameter) Type Type JIS 10K （16K） 85.5 JIS 20K 87.5 JIS 30K 92.5 11.9 10.3 ASME 150 100.5 JPI 150 37.6...

  • Page 22: Flow Straightener And Downstream Short Pipe

    D-586-2-E ● Separated Type Transmitter Name LCD Display Optical Switch Grounding Terminal M4 Screw M25 Pressure-Resistant Packing * Mounting Bracket Model Name Plate Explosionproof Nameplate (on opposite side) 圧力損失係数  C 圧力損失係数  C 呼び径 呼び径 呼び径 （mm） 呼び径 （mm） 呼び径 （mm） 呼び径...

  • Page 23: Display Function And Operation Method Of Transmitter

    D-586-2-E 3.5 Display Function and Operation Method of Transmitter Under normal use, the transmitter displays: resettable total flow rate, instantaneous flow rate, low battery alarm, and instantaneous flow rate bargraph. 3.6 Operation by Transmitter Optical Switch (1) Flow Rate Display Switching By using the optical switch on the face of the transmitter, you can reset the total value and change the parameters.

  • Page 24: Display During Operation

    D-586-2-E 3.8 Display during Operation Fig. 3.6: Example of Information Displayed during Operation The life of a built-in battery is about 7 years when continuously used. (About 4 years in case of separated type transmitter) “ ” lights up when battery level becomes low. (Replace the battery after 10 years from the manufacturing date because the battery storage life is about 10 years.) Replace the battery as soon as possible when low battery alarm “...

  • Page 25: Piping Instructions

    ISO standards given in Table 4.1 below: D ＝ Nom. Dia (1) OVAL flow straightener combined with downstream pipe (for models with nom. dia. 25mm and up) Remarks Honey vane L ⇨...

  • Page 26: Pipes To Be Used

    If required straight pipe section is not obtainable upstream of the vortex flowmeter due to existing restrictions on installation location, the OVAL Honey Vane S combined with a short pipe may be used to save space. EX DELTA Ⅱ SS with a built-in Honey Vane S requires no upstream straight pipe, and the accuracy is ±2% RD in liquid applications.

  • Page 27: Pulsation

    D-586-2-E 4.4 Pulsation Compressors, roots blowers and other pulsation pressure generating sources could adversely affect meter performance. Minimize pulsating pressures by referring to the following formula: N < 22ρ V (Pa) where N : Pulsation pressure (Pa) ρ : Density (kg/m V : Minimum velocity (m/s) If pulsation pressure is excessive, the following measures should be taken into consideration: (1) Locate the source of pulsations downstream of the meter or locate it as far from the meter as possible.

  • Page 28: Prevention Of Slug Flow

    D-586-2-E 4.7 Prevention of Slug Flow This meter can measure both gases and liquids, but slug flows (where gases exist in the process liquid) will produce a loss of metering accuracy. 4.8 Prevention of Partially Filled Pipe For liquid measurement, ensure that the pipe is filled with the liquid. Do not install the meter at a location where the meter cannot remain full of the liquid or bubbles tend to be entrained.

  • Page 29: Installation

    D-586-2-E 5. INSTALLATION 5.1 Installation Location Select a location with ambient temperature in the range of -20 to +60℃. Avoid meter installation in the locations such as following: (1) Difficult to access for maintenance and servicing (2) Temperature change and/or vibration is excessive (3) Possible immersion in water (4) Corrosive atmosphere (5) Unfit for the meter’...
  • Page 30 D-586-2-E ◆Procedure◆ WARNING: In case of explosionproof specification, make sure that there is no hazardous gas in the atmosphere, or move the flowmeter to a non- hazardous area before the operation. (1) Loosen 4 pieces of hexagon socket head retaining screws.

  • Page 31: Installation Procedures For Separated Type Transmitter

    D-586-2-E Sensor Lead Wires Hexagonal Socket Head Retaining Screw Fig. 5.8 Location of Sensor Lead Wires 5.4 Installation Procedures for Separated Type Transmitter (1) The maximum transmission distance from the sensor is 50m. Install the transmitter within the range. (2) Mount the transmitter onto a vertical/horizontal steel pipe of the nominal diameter 2B with the supplied mounting bracket as shown below.

  • Page 32: Wiring Connections Of Separate Type

    D-586-2-E 5.5 Wiring Connections of Separate Type 5.5.1 Wiring Specifications Table 5.1 Item Description Cable Entry M25 internal threads Transmission Sensor to transmitter: 50 meters max. Length Sensor to transmitter: 3-conductor shielded cable 1.25mm min. Cable Finished outside diameter: Non-explosionproof: φ 13mm max. Explosionproof: φ...

  • Page 33: Considerations On Wiring Connections

    D-586-2-E 5.7.1 Considerations on Wiring Connections (1) To prevent inductive interference, lay the field wiring sufficiently away from high voltage lines, power lines, and strong electric equipment. (2) Provide a lightening arrester if lightening strikes are expected. (3) Pitch down the cable at the cable entry to prevent intrusion of rainwater or moisture into the equipment. (4) Cable ends are terminated with M3 screw.

  • Page 34: Close-Up Plug

    5.9 Replacement of External Cable Gland and Close-up Plug The designated external cable gland and close-up plug are specified by OVAL. Contact OVAL distributors or OVAL service division for the replacement parts when replacement/repair is required. Provide the model code of...

  • Page 35: Heat Retention Procedure

    D-586-2-E 5.10 Heat Retention Procedure Be sure to retain the heat when you measure Transmitter steam with the flowmeter. However it is recom- mended to apply a simple insulation method (without mortar finishing) in order to make mainte- Simple Heat-Retention Connecting bolt can be (Convenient if dividable) taken off by removing...

  • Page 36: Sensor Installation

    D-586-2-E ◆How to change display angle◆ (1) Remove the front lid. CAUTION: Open the front lid in a safe area. (2) Pull out display unit. (3) Turn display unit to desired angle and insert it on the groove on main body. (90 degree step) (4) Mount the front lid back again.

  • Page 37: Flange Type

    D-586-2-E CAUTION: Make sure that the gaskets do not protrude inside the meter body (pipe). Protruding gaskets will affect the measuring accuracy. <Nominal diameter 10mm to 25mm> <Nominal diameter 40mm to 150mm> Flange Gasket Flange Gasket Connecting Bolt Connecting Bolt Adjust Ring Adjust Ring Flange...

  • Page 38: Operation

    D-586-2-E 6. OPERATION 6.1 Flushing of Piping Assembly On a newly installed piping assembly where scale, sludge and other foreign matter are expected, flushing the piping assembly is necessary before commencing meter operation. In order to safeguard the meter, use a bypass line for flushing. If there is no bypass line, install a short pipe section in place of the meter as shown in Fig.

  • Page 39: Key Functions

    D-586-2-E 6.3 Key Functions This key is used for the transition to parameter confirmation mode. PROG In the parameter confirmation mode, this key is used to shift to the left on the transition table or confirm/save variable changes. This key is used to select accumulated display/ instant flow rate display. SELECT PROG At the parameter confirmation mode after the operation of...

  • Page 40: Activating Optical Switch

    D-586-2-E 6.4.1 Activating Optical Switch Take following steps in order to cancel the key lock mark “ ” of optical switch. The mark “ ” is displayed and key lock mark “ ” disappears once the following steps are carried out properly.

  • Page 41: Operation By Push Button

    D-586-2-E 6.4.3 Operation by Push Button When you take off the front lid, you can see 3 mechanical push buttons below the optical switches. They are arranged in the same order as the optical switches. To avoid erroneous operations, make sure that the key lock is active before removing the front lid.

  • Page 42: Clearing Of Total Value

    Replace the battery to new one as quickly as possible when this alarm turns WARNING Contact OVAL for battery replacement. Please note that we do not take any liability for any problem caused by batteries purchased through an entity other than us.

  • Page 43: Parameter Setting

    D-586-2-E 7. PARAMETER SETTING Parameter setting of PAF5 is executed under the parameter setting mode. Transition to the parameter setting PROG mode is done by pressing for 7 seconds while the key lock is canceled. PROG To go back to the measurement mode from the parameter setting mode, press for 3 seconds or leave the PAF5 for 3 minutes without pressing any keys.

  • Page 44: Scrolling Parameters

    D-586-2-E Normal Mode (Measurement Mode) Transit by pressing PROG/ENT switch Transit by long pressing of PROG/ENT switch Transit by pressing SELECT/↑ switch Transit by pressing CLEAR/→ switch Upper Stage: TOTAL Lower Stage: RATE Upper Stage: TOTAL Lower Stage: ACC.TOTAL Parameter Confirmation Mode Transit to normal mode is possible from any item of parameter confirmation mode. ・Key lock is applied when no operation is executed for more than 0 seconds at normal mode (measurement mode). ・ The display returns to normal mode (measurement mode) when no operation is executed for more than 2 minutes at parameter confirmation mode.

  • Page 45: Changing/Selecting Value

    D-586-2-E 7.4 Changing/Selecting Value PROG Press of Ⓐ. ● Program indicator starts flashing. ● SELECT CLEAR Select/ enter the value by using of Ⓑ and of Ⓒ. ● CLEAR Press of Ⓒ in order to confirm value/ selection. ● CLEAR SELECT To change values, press to select digits and press...

  • Page 46: Parameter List

    D-586-2-E 7.6 Parameter List Name Description Setting Contents (Setting Range) 1. tOtAL (TOTAL) UnIt Total and Instantaneous Flow Rate Unit Select from mL-L-m -g-kg-ton-SL-Sm -NL-Nm dECS Total Decimal Point Position Select from 0-1-2-3 ACCtOt Cumulative Total Value Display of current cumulative total value 2.

  • Page 47: Parameter-1. Total

    D-586-2-E 7.6.1 Parameter-1. TOTAL tOtAL Determines the unit of total and instantaneous flow rate displayed on the LCD. Unit mL - L - m - g - kg - ton - SL - Sm - NL - Nm Depending on the meter factor unit of [4.1 Unit]. Determines the decimal point of total and cumulative total as follows: DECS 0 - 1 - 2 - 3...

  • Page 48: Parameter-3. Displ

    D-586-2-E 7.6.3 Parameter-3. DISPL dISPL Determines the update cycle. The update cycle affects the battery life. Selecting [OFF] turns off the display, but flow totalization continues to be executed without losing information such as parameters and total values. Selectable Range: FAST - 1 SEC - 3 SEC - 15 SEC - 30 SEC - OFF (Standard Setting: 1 sec) UpdAt When [OFF] is selected, the display turns OFF after 30 seconds from the last key operation.

  • Page 49: Parameter-5. Pulse

    D-586-2-E 7.6.5 Parameter-5. PULSE NOTE: These parameters are not used with this equipment. Do not change them from the values (factory setting) described in the following table, or the equipment may operate improperly. PULSE LEnGtH This is the parameter not used in this equipment. Always select [-.---]. dECS Always select [0] at this equipment.

  • Page 50: Parameter Setting Procedure

    D-586-2-E 7.7 Parameter Setting Procedure To change parameter settings, follow the procedures below: PROG ① At [Measurement Mode], press and hold to enter [Confirmation Mode]. CLEAR PROG SELECT ② Operate to display the parameter you would like to change. PROG ③...

  • Page 51: Maintenance/ Inspection

    D-586-2-E 8. MAINTENANCE/ INSPECTION Confirmation Contents Check Is coating peeled off? Is wiring correctly made? Is terminal processing proper? Is front lid mounted? Stop the operation immediately if any deformation, crack and so on is observed in the enclosure and glass, and consult our service center.

  • Page 52: Mounting Display Unit

    D-586-2-E 8.2 Mounting Display Unit (1) Mount flat cable connector ⑤ on display unit ④. (2) Hold the flat cable connector ⑤ with your hand so that it does not get jammed between display unit ④and transmitter main body ①. ⑤...

  • Page 53: Flow Sensitivity Adjustment Procedure

    D-586-2-E 8.5 Flow Sensitivity Adjustment Procedure Flow sensitivity is accurately adjusted to satisfy the spec- ified flow range before the meter is shipped from the factory. If no output is generated at the minimum flowrate pre- sumably due to specific operating conditions (distur- bance from external interference, for example), readjust the sensitivity (trigger level).

  • Page 54: Battery Replacement

    D-586-2-E 8.8 Battery Replacement Battery replacement by our service engineer is recommended. Prepare the following tools necessary for battery replacement: Nut driver 5.5mm ● Philips screwdriver #2 ● Fine-tipped flat head screwdriver etc. ● This equipment has a built-in battery. Replace the battery following the steps below. Refer to 3.2 Exploded Diagram and Parts List for parts name.

  • Page 55: Battery Disposal Rules

    Re-assemble the transmitter in the reverse order of removal. Dedicated Battery: Contact OVAL. WARNING: Contact OVAL for battery replacement. Please note that we do not take any liability for any problem caused by batteries purchased through an entity other than us.

  • Page 56: Product Code Explanation

    D-586-2-E 10. PRODUCT CODE EXPLANATION ● EX DELTA Ⅱ (MODEL: VXU, VXT) Main code Ex-proof temp. class Regulations Transmitter Explosionproof Transmitter configuration Process connection Major parts material Display Temp. category Output Fluid category Communication protocol Nominal size Version code Model Special ① ② ③ ④ ⑤ ⑥ − ⑧ ⑨ ⑩ ⑪...
  • Page 57 D-586-2-E ● EX DELTA Ⅱ (MODEL: VXW, VXF, VXR) Main code Ex-proof temp. class Regulations Transmitter Explosionproof Transmitter configuration Process connection Major parts material Display Output Temp. category Fluid category Communication protocol Version code Nominal size Model Special ① ② ③ ④ ⑤ ⑥ − ⑧ ⑨ ⑩ ⑪ ⑫ − ⑭...
  • Page 58 D-586-2-E ● EX DELTA Ⅱ DIA (MODEL: VXJ, VXL, VXM) Main code Ex-proof temp. class Regulations Transmitter Explosionproof Process connection Transmitter configuration Major parts material Display Temp. category Output Fluid category Communication protocol Nominal size Version code Model Special ① ② ③ ④ ⑤ ⑥ − ⑧ ⑨ ⑩ ⑪ ⑫ −...
  • Page 59 D-586-2-E ● EX DELTA Ⅱ Additional code Ex-proof temp. class Regulations Transmitter Explosionproof Process connection Transmitter configuration Major parts material Display Temp. category Output Fluid category Communication protocol Nominal size Version code Model Special ① ② ③ ④ ⑤ ⑥ − ⑧ ⑨ ⑩ ⑪ ⑫ − ⑭ ⑮ ⑯ − ⑱...
  • Page 60 D-586-2-E 2019.03 Revised△ 2018.06 Released All specifications are subject to change without notice for improvement. D-586-2-E (1)  ...

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