Oval MAG-OVAL III, MAG-OVAL III MGW, MAG-OVAL III MGS Instructions Manual

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Page 1

ALM.

Electromagnetic flowmeter



Ins. No. C

−

102−1−E

Models MGW and MGS

Every MAG-OVAL III is manufactured under the stringent quality control and thoroughly tested and inspected before shipment from our factory. This manual is designed to assist the user to obtain the best performance of this product throughout its service life. In order to take sufficient care, please read this instruction carefully before the use and keep it handy for quick reference.

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C−102-1-E

CONTENTS

1. GENERAL ............................................................................................................................4

2. BEFORE YOU BEGIN ..........................................................................................................5

3. PIPING INSTRUCTIONS .....................................................................................................6

3.1 Straight Pipe Section ..................................................................................................................................... 6

3.2 Keeping the Flow Tube Completely Filled ..................................................................................................... 6

3.3 Physical Orientation of the Probe .................................................................................................................. 7

3.4 Bypass Line ................................................................................................................................................... 7

3.5 Prevention of Negative Pressure ................................................................................................................... 8

3.6 Installation Location ....................................................................................................................................... 8

4. PROBE INSTALLATION ......................................................................................................8

4.1 Screw-in Type (nominal sizes 3 to 15mm) ..................................................................................................... 8

4.2 Wafer Type (nominal sizes 25 to 150mm) ...................................................................................................... 9

4.3 Transmitter Installation ................................................................................................................................. 10

5. GROUNDING .....................................................................................................................12

6. WIRING CONNECTIONS ..................................................................................................12

6.1 Power and Output Signal Wiring Connections ............................................................................................ 12

6.2 Wiring Connection Diagram ......................................................................................................................... 13

6.3 Power and Output Signal Terminal Identification......................................................................................... 13

6.4 Wiring Connection Instruction ..................................................................................................................... 14

7. START-UP ..........................................................................................................................15

8. MAINTENANCE .................................................................................................................15

9. TRANSMITTER DISPLAY AND OPERATION ...................................................................16

9.1 Explanation of Display ................................................................................................................................. 16

9.2 Operation Basics ......................................................................................................................................... 16

9.2.1 Setup Mode and Measure Mode .......................................................................................................... 16

9.2.2 Key Operations ..................................................................................................................................... 17

10. MEASURE MODE ...........................................................................................................18

10.1 Measure Mode Screen ............................................................................................................................... 18

10.2 Resetting Resettable Total ......................................................................................................................... 18

10.3 Error/Alarm and Status Display ................................................................................................................. 19

10.4 Screen Change for Instant and Total Flow Indication ................................................................................ 20

11. OPERATIONS IN SETUP MODE ....................................................................................21

11.1 Transition from Measure Mode to Setup Mode ......................................................................................... 21

11.2 Menu Operation in Setup Mode ................................................................................................................ 22

11.3 Changing Parameters ................................................................................................................................ 23

11.3.1 Parameter Setting in Selection System (Ex. Changing backlight setting) ........................................... 23

11.3.2 Setting Numeric Parameters (Ex. Changing flow range setting) ......................................................... 24

11.3.3 Viewing Exponential Indication ........................................................................................................... 25

12. DISPLAY TRANSITION ...................................................................................................26

12.1 Display Transition (1) Setting Display ...................................................................................................... 26

12.2 Display Transition (2) Setting Flow Parameter......................................................................................... 28

12.3 Display Transition (3) Setting Output Signal ............................................................................................ 30

12.4 Display Transition (4) Setting Error and Alarm Output............................................................................. 32

12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions .................................................... 34

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13. ANALOG OUTPUT FUNCTION ......................................................................................36

13.1 Setting Analog Output ............................................................................................................................... 36

13.2 Analog Output at Error/Alarm .................................................................................................................... 36

13.3 Adjusting Analog Output ............................................................................................................................ 37

14. PULSE OUTPUT AND TOTALIZING FUNCTION ...........................................................38

14.1 Setting Pulse Output .................................................................................................................................. 38

14.2 Pulse Output at Error/Alarm ....................................................................................................................... 39

15. STATUS OUTPUT FUNCTION ........................................................................................40

15.1 Selecting Status Output ............................................................................................................................. 40

15.2 High/Low Limit Alarm Function ................................................................................................................. 40

15.3 Flow Direction Output Function ................................................................................................................. 40

16. LOOP TEST (SIMULATIVE OUTPUT) FUNCTION .........................................................41

16.1 Simulative Output Operation ..................................................................................................................... 41

17. COMMUNICATION FUNCTION ......................................................................................42

17.1 Communication Specifications .................................................................................................................. 42

17.2 Setting Communication Functions ............................................................................................................ 43

18. SELF-DIAGNOSIS FUNCTION .......................................................................................44

18.1 Self-diagnosis Items .................................................................................................................................. 44

18.2 Diagnosing All Items .................................................................................................................................. 45

18.3 Diagnosing Self-diagnosis Items Individually ............................................................................................ 46

19. LCD CHECK ....................................................................................................................46

20. ERROR/ALARM STATUS LIST .......................................................................................47

20.1 Error/Alarm List .......................................................................................................................................... 47

20.2 Other Statuses ........................................................................................................................................... 48

21. PARAMETER LIST ..........................................................................................................49

22. GENERAL SPECIFICATIONS .........................................................................................50

23. FLOW RANGE .................................................................................................................51

24. PRODUCT CODE EXPLANATION ..................................................................................52

25. OUTLINE DIMENSIONS .................................................................................................53

This manual uses the precaution words "NOTE", "CAUTION", and "WARNING" as explained

below:

NOTE: Notes are separated from the general text to bring the user's attention to

important information.

CAUTION: Caution statements signal the user of hazards or unsafe practices which

could result in minor personal injury or product or property damage.

WARNING: Warning statements signal the user of hazards or unsafe practices

which could result in severe personal injury or death.

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Electrodes

GND electrode

Cable entries

GND terminal

Transmitter

Adapter

Probe

Product nameplate

ERR.

ALM.

Alarm/Error

indicator

[ENT] key indicator

[SEL] key

indicator

[SEL] key

[ENT] key

Magnet

LCD Upper row instant flow rate indicator

LCD bottom row total flow indicator

Unit display

1. GENERAL

Electromagnetic flowmeters operate on the basis of Faraday's law of electromagnetic induction. When a conductive liquid flows through the magnetic field applied perpendicul ar to the direction of flow, an electromotive force (EMF) is induced proportionally to the average velocity of flow according to Faraday's law. A pair of electrodes located on the flow tube wall picks up the induced EMF which is then amplified in the transmitter to determine the volumetric flow rate.

FEATURES

(1) Easy handling and low pressure loss contribute to low cost of installation and operation of the flowmeter,

providing excellent cost-effectiveness.

(2) Four kinds of electrodes are available for wetted area. Application to highly corrosive liquids is also

supported.

(3) In addition to magnet handling on the site, monitoring, various kinds of setting change, logging, loop test,

and self-diagnosis are available.

(4) Wide measuring range starting from zero.

■ Part names

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C−102-1-E

① ② ③ ④ ⑤ ⑥ ⑦

⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭

Magneti c   F l ow m et e r

OVAL Corporation

MADEINJAPAN

MODEL SERIALNo. TAGNo. FLUID FLOWRANGE MAX.PRESS MAX.TEMP

ELECTRODE POWER DATE ANALOGOUTPUT PULSEOUTPUT CAL.ZERO CAL.FACTOR

Side view from Arrow A

2. BEFORE YOU BEGIN

Although this flowmeter is built and adjusted exactly to meet the customer specifications and, it is ready to operate in your service by turning on the power, it is desirable for the operator to read this instruction manual carefully for the best results in maintaining the stated accuracy and long life before initiating service operation. You can avoid potential downtime of the equipment by observing the following instructions in particular.

(1) Confirm the operating conditions The operating conditions and major specifications of this flowmeter appear on the nameplate attached to the

transmitter. Verify that the conditions indicated agree with your particular operating conditions. If you are to

make measurement of corrosive liquids in particular, make sure of the compatibility of electrode materials, etc. (2) About grounding An electromagnetic flowmeter requires earth grounding. See the Grounding Instruction on page 12 for proper

grounding. (3) Use with the flow tube filled with liquid An electromagnetic flowmeter requires its internal space to be completely filled with the process liquid. Ensure of a fully filled flow tube during operation. (4) About field wiring For intercabling between the electromagnetic flowmeter and receiving instrument, see the section "Wiring

Connections". Please remember to check terminal numbers for correct connections before operation.

〈Explanation of items shown on nameplate〉

No. Item Description

(1) Product code Ex. MGW1-0501T17E-10A (2) Product No. (3) Instrument No. As designated (4) Fluid measured Ex. Water (5) Flow range Ex. 0 to 100m3/h (6) Max. pressure Allowable max. pressure of flowmeter (7) Max. temperature Allowable max. temperature of flowmeter (8) Electrode material Ex. SUS316L (depending on selected type) (9) Power spec. Ex. 85 to 264VAC 50/60Hz (depending on selected type)

(10)

Month/Year of shipment

(11)

Analog output 4 to 20mA

(12)

Pulse output At factored pulse Ex. 1L/P, At frequency pulse Ex. 1000Hz at F.S.

(13)

Calibration zero value

(14)

Calibration factor value

　　　——

　　　—— 　　　——

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Flow

5D min.

Probe

Flow

Partially open valve

10D min.

Probe

(1)

(2)

D: Nominal pipe diameter

Flow

Probe Probe

Tank

(A) (B)

3. PIPING INSTRUCTIONS

3.1 Straight Pipe Section

(1) Provide at least 5D (D: nominal pipe diameter) of straight piping upstream of the meter. For screw-in type

meters (3 to 15 mm in nominal diameter), no straight piping is required because of their long face-to-face dimension with respect to their diameter.

(2) It is preferable that partially open valves or other devices that disturb the flow velocity pattern to be located

downstream of the meter. If such devices are desired to be placed upstream of the meter for some reason, provide at least 10D of straight pipe section upstream of the probe.

Fig. 3.1 Standard Straight Pipes

3.2 Keeping the Flow Tube Completely Filled

(1) It is essential that the electromagnetic flowmeter be installed in a pipeline completely filled with the process

fluid.

(2) In cases of horizontal installation or vertical installation where the fluid flows top to bottom, we recommend

providing a rising pipe or maintaining sufficiently large hydraulic head downstream, for these piping arrangements are likely to create empty or partially filled conditions. (See Figure 3.2)

CAUTION: False output pulses may be produced if the flow tube is not filled completely

with fluid.

Fig. 3.2 Proper Examples of Downstream Piping

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Electrodes

FLOW

Horizontal run

Transmitter up with axis of electrodes horizontal

Vertical run

Cable entries pointing downward

Bottom → Top flow direction is preferable.

Cable entries (face down)

Probe

Blow pipe

Downstream

valve

Bypass

Upstream valve

Vertical flow direction

Valve

3.3 Physical Orientation of the Probe

The probe may be installed in any physical orientation as long as the flow tube is completely filled with the process fluid.

Keep in mind the following precautions, however.

(1) Horizontal run In a horizontal line, keep electrodes axes on a level plane to minimize the risk of electrodes being insulated

momentarily due to suspended gas bubbles. (2) Vertical run In a vertical line, avoid a transmitter orientation with cable entry pointing upward to prevent rainwater from

entering the transmitter.

Fig. 3.3

CAUTION: With liquids that contain suspended solids or liquids that can separate easily, a

vertical run is suggested to reduce the possibility of solids deposition, wear and separation to a minimum.

3.4 Bypass Line

We recommend to provide a bypass line to facilitate maintenance and inspection. Particularly in a vertical run, it is desirable that the piping be arranged to facilitate removal of solids build-up inside the pipe line.

Fig. 3.4 Vertical Piping Example

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Flow

Probe

Flow control valve

Probe

Lining

Seal face

(A) (B)

Gasket (Must be in place.)

Do not seal on threads.

Flow

Upstream valve

Probe

Negative press. relief valve

Downstream valve

3.5 Prevention of Negative Pressure

In order to maintain a long-term service life of the pro be, take pos i t ive measu res to elimi n ate circumstances that can create negative pressure in the pipeline.

(1) If b oth upstream a nd do wnst ream val ves

remain closed with fluid temperature higher than that of the atmosphere, fluid contraction may ta ke place as the fluid co ols down , creating negative pressure in the enclosed space of pipeline. You can solve this problem by providing a negative pressure relief valve near the probe.

(2) If a vertical piping continues downstream of

the probe:

While stopping or adjusting the fluid flow with

the upstream valve of flowmeter, negative pressure can be created in the pipeline. To prevent this condition, stop or adjust the fluid flow with the downstream valve.

Fig. 3.5 Piping Example to Prevent Negative Pressure (1)

Fig. 3.6 Piping Example to Prevent Negative Pressure (2)

3.6 Installation Location

Avoid locations such as: (1) Near motors, transformers, or heavy electrical equipment (2) Inaccessible for maintenance and inspection (3) Temperature varies widely or vibration is excessive (4) Potential risk of submergence

4. PROBE INSTALLATION

4.1 Screw-in Type (nominal sizes 3 to 15mm)

(1) Process connection is of screw-in type. By using dedicated unions, be sure to seal the end face of probe

(lining surface). Never apply a seal to threads as it is likely to cause unexpected trouble.

Fig. 4.1

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(2) Union and other joints should be of dedicated accessories furnished for connecting pipes.

Union fitting

Tightening nut

Gasket

Rc (PT) screw adapter

Hex nut

Connecting bolt

Flange gasket

Adjust ring

Probe

Use of nonstandard fittings can lead to unexpected trouble.

Fig. 4.2 Example of Unions Installed in Place Fig. 4.3 Union Fitting (accessory for piping)

CAUTION: Install the transmitter securely.

4.2 Wafer Type (nominal sizes 25 to 150mm)

C−102-1-E

Install the meter observing the following precautions:

Flange Tightening Torque Specifications

(1) Protection of probe's linings

a. Exercise care to avoid damage to the linings of

probe.

Nominal size (mm) Torque (N・m)

25, 40 39 to 54

b. Do not fail to use flange gaskets when making

pipe connections.

c. Tighten connecting bolts carefully to avoid

uneven tightening or over tightening.

( R efe r to th e f l an g e ti g ht e ni n g to r qu e

specifications in the table on the right.)

50 70

80 54

100 78

150 125

(2) Maintaining accuracy

a. To ensure concentric alignment of the probe,

do not fail to use the adjust rings furnished (or adjust collars for nominal size 150mm meter with JIS 10K flange rating).

b. Exercise care not to let flange gaskets protrude

inside the pipe.

◆ Installing adjust rings ◆　Nominal sizes 25mm to 150mm

(For nominal size of 150mm with flange rating of JIS 10K, see figure 4.5 on the next page.)

Fig. 4.4

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Hex nut

Connecting bolt

Flange gasket

Adjust collar (Install four adjust collars uniformly 90° apart.)

Probe

Installation on a horizontal pipe is shown with dotted lines.

2″ Pipe

Adapter

Sec A-A

181.6

A A

◆ Installing adjust collars ◆　Nominal size 150mm, flange rating JIS 10K

Fig. 4.5

4.3 Transmitter Installation

(1) Securing the integral transmitter (nominal size 3 to 6mm): For the screw-in type (nominal size 3 to 6mm), tubes are too thin to support the meter. Therefore, secure the transmitter in the manner shown in the figure below.

Using the U-bolt and mounting bracket supplied with the flowmeter, fix the flowmeter to a horizontal or vertical pipe with nominal diameter of 2″. * Pipe is not supplied with the flowmeter.

Mounting to a horizontal pipe

Mounting to a vertical pipe

Fig. 4.6 MAG-OVAL III Transmitter Hold-down Hardware

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Display cover

Hex key (M4)

Display cover

A flat tool that does not damage the finish

Turn

Fitting screw (M3)

Display unit

Pull

Connector pins

Display unit

Connector socket

Display unit

Press along the guide

Guide hole Guide pin

(2) Procedure to tilt the LCD display to the desired angle: The display unit in its housing is rotatable in increments of 90 degrees through 360 degrees. By changing the LCD display orientation, you can achieve optimum viewability also in a vertical line.

CAUTION: Do not forget to turn off the power before beginning this procedure. Another

precaution to remember is to eliminate static charges from the operator's body.

◆ Procedure to adjust angular orientation of display ◆

Fig. 4.7

(1) Using hex wrench, loosen the locking setscrew

(M4) securing the display cover in the locked position.

Fig. 4.9

(3) Remove the mounting screws (4 places) with a

phillips screwdriver and detach the display unit.

Fig. 4.8

(2) Using a flat tool, loosen the display cover by

carefully turning it counterclockwise and hand rotate it further until the cover comes off.

Fig. 4.10

(4) By pulling the display unit toward you, remove it.

Fig. 4.11

(5) The display unit is rotatable in 90° steps. Confirm

the locations of connector pins on the transmitter body and mating sockets on the display unit.

(6) At the desired physical orientation of display unit,

rotatable in 90° steps, align four guide pins of the unit with two mating guide holes and install into

Fig. 4.12

place by pressing it in a direction perpendicular to its mating surface.

After determining the angular orientation of display unit, install display unit fitting screws, display cover, and setscrew to lock the cover. Now the orientation adjustment is complete.

CAUTION: Install the display cover to the housing securely by tightening with a flat tool,

ensuring that no gap exists before tightening the locking setscrew.

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Terminal block cover

Turn

A flat tool that does not damage the finish

GND terminal

Probe

Metal pipe

GND terminal

Probe

Metal pipe

GND terminal

Probe

Resin pipe

Internal ground terminal

Power terminal

block

Terminal board

Output signal

terminal block

Cable entries

5. GROUNDING

The electromotive force detected across electrodes of the probe is a very weak voltage measured against the reference potential of metered liquid. Accordingly, earth grounding (better than Class C grounding) is essential to maintain the probe and metered liquid at the same potential. Illustrated below are the proper grounding procedures.

Grounded metal pipeline

Ungrounded metal pipeline Plastic or lined pipeline

Fig. 5.1

CAUTION: Do not connect to earth ground of heavy electrical equipment.

Connect the ground wire for the transmitter to external ground terminal or internal ground terminal.

6. WIRING CONNECTIONS

6.1 Power and Output Signal Wiring Connections

Terminals for wiring connections are found at the back of transmitter housing. Remove the cover and make wiring connections.

(1) Using hex wrench, loosen the locking setscrew

(3) Separating the cover provides access to the

Fig. 6.1

(M4 hex socket head) securing the cover.

Fig. 6.3 Terminal Board

terminal board with cable entrance openings, int ernal ear t h grou nd termi nal and ter minal blocks for power and output signals.

Fig.6.2 Terminal Block Cover Removal

(2) Using a flat tool, carefully loosen the terminal

cover by rotating it counterclockwise and turning further by hand until it comes off.

Page 13

6.2 Wiring Connection Diagram

Power fuse

Output signal terminal (TB2)

screwless terminal

Internal ground terminal

External ground terminal

Power terminal (TB1)

screw size: M4

GND terminal location　　　　　　　　　　　　Details of terminal block

C−102-1-E

Fig. 6.4 Connecting Terminal Layout

6.3 Power and Output Signal Terminal Identification

Item Terminal No. Label Description

1 PULSE + 2 PULSE −

3 STATUS + 4 STATUS −

5 Unused

6 Unused

7 Unused

8 Unused

9 ANALOG +

10 ANALOG −

11 RS485 + 12 RS485 −

1 LINE（+） Power (with DC power: + )

2 GND Ground 3 NEUT（−） Power (with DC power: - )

4 EARTH Ground

Output signal

Power

TB2

TB1

Pulse output (Open drain pulse output, or voltage pulse output)

Status output (Open collector output)

Analog output

RS-485 communication

Note: Ground terminal "EARTH" shall be used for grounding. Ground terminal "EARTH" of this

flowmeter is internally connected to "GND".

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ANALOG+

ANALOG-

STATUS+

STATUS -

Receiver

Receiver Receiver

Receiver

PULSE+

PULSE-

E:18V

PULSE+

30VDC

50mA Max.

30VDC

50mA Max.

Line capacity C

R 2.2kΩ

510Ω Max.

6.4 Wiring Connection Instruction

The screw size for cable entry is G1/2. For connections to terminals, use the following crimping terminals.

Terminal name Recommended crimping terminal

Power terminal Round crimping terminal for M4

Output signal terminal (Screwless terminal block)

No crimping terminal is required. Use a cable of 0.2 to 1.25mm2. Standard wire strip length: 11mm

■ Connection to receiver

Open drain pulse output Voltage pulse output

Status output Analog output

0.1

R X C

NOTE: The tran smission len gth of pulse output is restricted by the outpu t frequency or receiver

specifications.

󱾀 When setting open drain pulse The pulse output waveform is attenuated by resistance R and line capacity C of the receiver.

The output frequency shall be set to F [Hz] < .

Line capacity C shall be set to 0.1μF/km.

󱾀 When setting voltage pulse The pulse output waveform is attenuated by resistance R and line capacity C in the flowmeter. (The resistance factor of R is included in the following coefficient.)

The output frequency shall be set to F [Hz] < .

0.1

4400 X C

Line capacity C shall be set to 0.1μF/km.

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7. START-UP

(1) Upon completion of meter installation and field wiring connections, reaffirm the following:

a. Is the meter correctly installed? Is the flow direction correct?

b. Is the flow tube completely filled with the fluid?

c. Is the grounding correctly done? (2) After filling the flow tube with the fluid, turn the power on.

a. On power-up, allow at least a 30 minute warm-up period.

b. When fluid flows, a signal (pulse and analog) proportionate to the flow is output and instantaneous flow

rate (default) is displayed on the top row of the LCD of the transmitter and accumulated total flow or resettable total flow is displayed on the bottom row of the LCD. (The display can be selected by setting.)

(3) Using the two magnet switches in the transmitter, you can confirm or change parameters, such as full scale

and pulse units, and change the LCD display menus.

8. MAINTENANCE

Every MAG-OVAL III leaves the factory under stringent quality control. As long as it is placed under proper conditions, it will perform satisfactorily over long periods of time. If trouble arises, diagnose the nature of trouble according to the troubleshooting chart below for the possible solution. When error alarm is being generated, check the detail of error in accordance with "20. ERROR/ALARM STATUS LIST".

Problems

No Output

Unstable Zero

Unstable Output

○ ○ ○ ○ ○

○ ○

○ ○ ○ ○

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

○ ○ ○ ○ ○ ○ ○ ○

○ ○

Quick Troubleshooting

Confirm

Large Meter Error

(1) The wiring is correct.

(2) The power is sufficiently supplied.

(3) The fuse is not interrupted.

(4) The fluid is flowing, or valves are open.

(5) Receiving instrument specifications are matching. (Input pulse width, etc.)

(6) There is no leak from pipeline connections and valves.

(7) Earth ground is properly completed.

(8) Flow tube is completely filled. (There is no bubble entrapment.)

(9) There are no pulsations in the flow.

(10) Motors, transformers, or other heavy electrical equipment are not near the probe.

(11) Lining (electrodes) is free from slurry deposits.

(12) Fluid conductivity is uniform.

(13) Fluid is free from magnetic slurries.

(14) Piping conditions are correct. (Inaccurate probe centering or insufficient upstream pipe length)

(15) Full scale (flow range) is correct.

(16) Calibration factor and zeroing const. are correct.

(17) Primary standard against which the meter is compared is correct.

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C−102-1-E

ALM

(5) Error/Alarm indicator

(4) Total flow rate unit

display

(8) [SEL] key indicator

(9) [SEL] key

(1) Instant flow rate display (Top row)

(2) Instant flow rate unit

(3) Total flow display (Bottom row)

(6) [ENT] key indicator

(7) [ENT] key

ERR

9. TRANSMITTER DISPLAY AND OPERATION

9.1 Explanation of Display

No. Item Description

Instant flow rate display (Top row)

(1)

Instant flow rate unit display Displays unit of instant flow rate.

(2)

Total flow display (Bottom row) Displays total flow or resettable total.

(3)

Total flow rate unit display Displays the unit of total flow.

(4)

Error/Alarm indicator Indicates the occurrence of error or alarm.

(5)

[ENT] key indicator Turns on when [ENT] key is operated.

(6)

[ENT] key [ENT] key. Operated by the use of attached selector magnet.

(7)

[SEL] key indicator Turns on when [SEL] key is operated.

(8)

[SEL] key [SEL] key. Operated by the use of attached selector magnet.

(9)

9.2 Operation Basics

9.2.1 Setup Mode and Measure Mode

This flowmeter is provided with two modes: "Measure mode" and "Setup mode". "Measure mode" : The state after power on or at the completion of the Setup mode in item 11. Displays instant flow rate and total flow. The content of display can be changed by key operation. After power on or at the completion of the Setup mode in item 11, the flowmeter returns to

→ Refer to "10.4 Screen Change for Instant and Total Flow Indication".

"Setup mode" : Checking and changing parameters and self-diagnosis are available from the Menu. → Refer to "11.1 Transition from Measure mode to Setup mode".

this state automatically.

Displays the instant flow rate. % flow rate and flow velocity can be selected by switching.

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Ex. Indication when ENT key is set to ON

Indicator ON

Bar indication appears

on the bottom row display

Bars disappear

When all bars disappear,

press and hold ENT key

9.2.2 Key Operations

The keys of this flowmeter can be operated by placing the supplied magnet close to the "SEL" key and "ENT" key in the magnet switch section. Moving the magnet close to the SEL key or ENT key causes the magnet sensor to respond and the key entry is set to ON. The magnet sensor can respond through the glass screen.

■ Displayed messages during operation

Key operations include Ordinary depression (short key entry) and prolonged depression (press and hold key entry).

(1) Ordinary depression When the SEL key or ENT key is set to ON, the key indicator turns on. Setting the key entry OFF immediately

after the indicator turns on, starts ordinary operation. If the key entry is kept ON, bars "- - - - - - -" appear on the bottom row display and then bars begin to

disappear at given time intervals. If you set the key entry to OFF before the last bar disappears, it stays at the ordinary depression.

(2) Prolonged depression Pressing and holding the SEL key or ENT key causes bars "- - - - - - -" to be displayed at the bottom row

display and then bars disappear one by one from the left.

Keeping the key ON until all bars disappear will start the prolonged depression. (If you set the key to OFF before all bars disappear, it goes back to the ordinary operation (1).)

■ Description of each key operation

Each key operation executes the operation shown in the following table.

Key operation During Measure mode During Setup mode

SEL ((1) Ordinary depression) Changes display menu Switches operation, changes value

Press and hold SEL ((2) Prolonged depression)

ENT ((1) Ordinary depression)

Press and hold ENT ((2) Prolonged depression) Fixes the changes Fixes the changes

—

Switches between top and

bottom row displays

Return, Cancel

Shifts digits at the change of value

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Pressand

holdENT

ENT

SEL

10. MEASURE MODE

10.1 Measure Mode Screen

After power on or at the completion of Setup mode in item 11, the flowmeter enters Measure mode and the following screen will appear on the display of the flowmeter.

The upper row indicator shows instant flow rate. This display allows instant flow rate, % flow rate, and flow velocity to be changed by the key operation. (* In case of negative flow display, the number of significant figures is reduced by one digit.) For the switching operation of the screen in Measure mode, refer to "10.4 Screen Change for Instant and Total Flow Indication".

■ When instant flow rate exceeds the digits of display

(In case of negative indication)

Instant flow rate indication overflows and starts blinking. (In case of negative indication)

(* In case of negative flow display, the number of significant figures is reduced by one digit.)

The bottom row indicator shows instant flow rate. Total flow indicates accumulated total flow from the time of manufacture or resettable total that can be reset as required. This can be switched by the key operation.

NOTE: At the time of reverse flow, total flow will not be calculated.

When the total flow exceeds the digits of display, total flow returns to "0" and restarts totaling.

10.2 Resetting Resettable Total

When the bottom row indicator indicates resettable total flow (R.Total), pressing "ENT" selects the bottom row indicator. By pressing and holding "ENT" while the bottom row indicator is in the focused state (blinking), resetting the resettable total can be executed.

Page 19

C−102-1-E

Displayed alternately

10.3 Error/Alarm and Status Display

Error, alarm, and status report are notified by the LCD indicator.

󱾀 At the occurrence of error, [ERR] indicator turns on at the upper left of the LCD. 󱾀 At the occurrence of alarm, [ALM] indicator turns on at the upper left of the LCD.

The LCD top row indicates error/alarm occurred, status number and measurement value alternately. (At 1-sec. intervals) The LCD bottom row indicates error/alarm occurred, status description and measurement value alternately. (At 1-sec. intervals)

NOTE: For the details of number and description, refer to "20. ERROR/ALARM STATUS LIST".

■ Error indication (Ex.: Overflow error)

■ Error indication (Lower limit alarm)

■ Status display (During fixed analog output)

NOTE: Error/alarm indication continues until the problem is solved. Status indication is given when operation is conducted from the outside through communication and

continues until the operation is completed.

Page 20

C−102-1-E

ENT

SEL

Display change of Measure mode

% flow rate indication

Instant flow rate indication

Resettable total

flow indication

Focused

(blinking)

Accumulated total

flow indication

Focus state (blinking) is terminated when

no key entry is made for 10 seconds.

10.4 Screen Change for Instant and Total Flow Indication

In the Measure mode, the descriptions shown on the top row indicator and bottom row indicator can be switched interchangeably. To change the description to be displayed, set the top row or bottom row to the focused state (blinking) by using the "ENT" key and change the description by the entry of the "SEL" key. Focused state is terminated when no key entry is made for 10 seconds.

■ Selectable indication

Top row indicator

Display Item Description Example

Instant flow rate Indicates instant flow rate 12.345 L/min

% flow rate Indicates % flow rate with respect to metering range 12.1%

Flow velocity Indicates flow velocity 1.5 m/s

(MODE) For switching to Setup mode

Bottom row indicator

Display Item Description Example

Accumulated total flow Indicates accumulated total flow 8765432.1 L

Resettable total flow Indicates resettable total flow 1234567.8 L

—

Page 21

C−102-1-E

Pressand

holdENT

Pressand

holdENT

Pressand

holdENT

Pressand

holdSEL

Measure mode/Setup mode switching operation

In case password setting is effective

Setup mode

Measure mode

Returns to

Measure

mode

Password entry screen

Enter password

Password not matchPassword match

ENT

SEL

Pressand

holdENT

Pressand

holdSEL

11. OPERATIONS IN SETUP MODE

11.1 Transition from Measure Mode to Setup Mode

Reviewing and changing parameters are carried out in the Setup mode. Transition from Measure mode to Setup mode is completed by the following operations. Set the top row indicator to modE. (Refer to "10.4 Screen Change for Instant and Total Flow Indication".) If you press and hold "ENT" while modE is blinking, transition to the Setup mode occurs.

NOTE: If password is effective by the setting, a screen for entering password is displayed.

Entering the correct password allows transition to the Setup mode. (If wrong password is entered, the screen returns to the state of entering password.)

NOTE: The method of entering password is the same as that for parameter setting.

The password feature is "Invalid" and default password is "0000" in the setting at the factory shipment. If you wish to validate the password feature, carefully manage your password. (If you forget your password, contact nearest OVAL office or service center.)

CAUTION: To prevent accidental erroneous operation by parameter changing, changing

the setting shall be carried out while the flow is at pause.

Page 22

C−102-1-E

Menu operation in Measure mode

Layer code

Returns to

Measure mode

Top-most layer Bottom layer

Transition

between layers

SEL : Switches item Press and hold SEL

: Returns to higher

layer ENT : (Invalid) Press and hold ENT

: Advances layer to

lower layer

Pressand

holdENT

SEL

Pressand

holdSEL

Pressand

holdSEL

Switches item

11.2 Menu Operation in Setup Mode

Transition of item in the Setup mode is available by "SEL" and "Press and hold ENT". "Layer code" indicating the set item is displayed for 2 seconds for each item. For the details of setting items, refer to "12. DISPLAY TRANSITION".

The display items are switched by "SEL", and transition to the lower layer is carried out by "Press and hold ENT". "Press and hold SEL" returns to the higher layer. When "Press and hold SEL" is executed in the top-most layer (Layer code 01-00 to 14-00), exit from the Setup mode occurs and the Measure mode is restored.

Page 23

C−102-1-E

Pressand holdENT

Pressand

holdSEL

Parameter setting in selection system

Pressand

holdENT

SEL

SEL : Switches

setting value

Press and hold SEL :

Cancel ENT : (Invalid) Press and hold ENT :

Fix

Parameter Edit mode

When transition to Edit mode is completed, parameter starts blinking.

Automatically returns to (1)

Entire screen blinks for a moment and notifies that the change is fixed.

"Press and hold ENT" fixes the change.

Cancelled by "Press and hold SEL" (Parameter is not changed.)

Returns to Top

(1)

(2)

(3)

11.3 Changing Parameters

Changing parameters is executed by the following operations. When selecting a setting item, the current content is displayed on the bottom row indicator. "Press and hold ENT" enables transition to parameter Edit mode.

CAUTION: To prevent accidental erroneous operation by parameter changing, this

procedure shall be carried out while the flow is stopped.

11.3.1 Parameter Setting in Selection System (Ex. Changing backlight setting)

Parameter setting of selection system such as backlight setting (ON/OFF/AUTO) is carried out by the following procedure.

Page 24

C−102-1-E

Pressand

holdENT

Pressand

holdSEL

Numeric parameter setting

Pressand holdENT

SEL

ENT

Parameter Edit mode

When transition to Edit mode is completed, the focused digit starts blinking.

Automatically returns to (1)

Entire screen blinks for a moment and notifies that the change is fixed.

Change the numeric value by "SEL".

Shift the digit by "ENT".

Fix by "Press and hold ENT".

(1)

(2)

(3)

SEL : Changes

numeral Press and hold SEL

: Cancel ENT : Shifts digit Press and hold ENT

: Fix

Cancelled by "Press and hold SEL" (Parameter is not changed.)

11.3.2 Setting Numeric Parameters (Ex. Changing flow range setting)

When entering the Edit mode, the top-most digit of numeral is focused (blinking). Change the value of the blinking digit focused by "SEL" and shift the focused digit to the right by pressing "ENT". Then "Press and hold ENT", to fix the change.

"Press and hold SEL" can cancel the setting. (Returns to the original setting.)

Parameters with decimal point are in the fixed point type or exponential type. For exponential type, refer to "11.3.3 Viewing Exponential Indication".

NOTE: If the numeral entered exceeds the parameter settable range, the edit screen of (2) is restored after

"Set Err" is indicated. Change the numeral and fix the numeral again or use "Press and hold SEL" to cancel.

Page 25

C−102-1-E

11.3.3 Viewing Exponential Indication

Exponential indication is a notation of effective digit X exponent (10 to the nth power). For example, to set "123.45", 1.2345 X 102 is given. Therefore, enter 1.2345E2. (102 = 100) Setting negative exponent is also available. For example, to set "0.012345", 1.2345 X 10-2 is given in exponential indication. Therefore, enter 1.2345-2. (10-2 = 0.01) For the symbol of exponent, "-" and "E" can be switched by "SEL" by focusing the "E" at the second digit from the right. ("-" shows negative exponent and "E" shows positive exponent.)

Page 26

C−102-1-E

"SEL" "Press and hold SEL" "Press and hold ENT" Other

ENT

Displays instant flow rate

Total flow

Displays % flow rate

Resettable total flow

Displays flow velocity

Setup mode

Set password

Set password function

Set password

Set flow display

Instant flow rate units

No. of instant flow rate digits below decimal point

Total flow units

No. of total flow digits below decimal point

Set backlight

Screen display update cycle

F.dECP

m/s

modE

t.dECP

t.unit

FL.SEt

Parameter third item

Pw.SEt

Pw.OPt

F.unit

Set flow parameter 2

F.Prm2

Set flow parameter 3

F.Prm3

Parameter major item

[Top row display] Selects display [Bottom row display] Displays total flow

Enter password 00-00

01-00

02-00

03-00

04-00

05-00

06-00

07-00

08-00

09-00

10-00

11-00

12-00

13-00

14-00

PAS.wd

Parameter name

Layer code (Major item ― Secondary item ― Third item)

Parameter

display symbol

01-01

01-02

01-03

01-04

Set display

dSP.St

Set flow parameter 1

F.Prm1

Set self-diagnosis

diAG.S

Loop test

LP.tSt

Analog output trim function

A.trim

Self-check function

CHECK

Set analog output

A.Out

Set pulse output

P.Out

Set error output

Er.Out

Set alarm

ALArm

Set status output

S.Out

Select status output object

St.SEL

Parameter secondary item

bL.SEt

dP.CyC

Pw.FnC

01-01-01

01-02-01

01-02-02

01-02-03

01-02-04

Times of resettable total overflow

rt.oF

01-02-05

Times of total value overflow

t.oF

01-02-06

01-01-02

**.***

*****

**.**

12. DISPLAY TRANSITION

12.1 Display Transition (1) Setting Display

Page 27

Description of item

Content of parameter Default Setting range

Content of parameter Default

Setting range

500

100, 300, 500, 1000 (ms)

Auto

Can change the ON/OFF setting of LCD backlight.

0 to 3 digits

* 0 digit: Indication by integer

0 to 3 digits

* 0 digit: Indication by integer

specified

Depends on

measurement

range

Depends on

measurement

range

specified

L, m

, kg, t, gal

On (Valid), OFF (Invalid)

OFF

0000 to 9999

0000

Allows selecting valid/invalid of password feature. Selecting "ON" causes password entry to be required before entering the Setup menu screen, preventing the parameter from being changed easily.

Allows setting a password. To validate this setting, the password feature shall be set to

"On"

by password feature setting. Note that password change is impossible

if you forget your password.

Display of optionally resettable total flow Operation: Reset this display by "press and hold ENT" while resettable total is blinking.

Can change the unit of instant flow rate indicated on the botto m row display. Note: At the setting change of volumetric flow rate ⇔ mass flow rate, the total value is reset. * In case of mass flow rate display, den sity shall be set ad ditionally as fixed convers ion factor.

Can change the number of digits below decimal point of instant flow rate indicated on the top row display.

Can change the unit of total flow indicated on the bot tom row display. (Common to accumu-

lated total and resettable total)

* In case of mass flow rate display, density shall be set additiona lly as fixed conversion factor.

Can change the number of digits below decimal point of total flow indicated on the top row display.

(Common to accumulated total and resettable total)

Number of times the total value indicated on the bottom row display exceeds the

display digits (8 digits) and returns to

"0"

. Resetting the resettable total resets the

count to zero.

Number of times the total value indicated on the bottom row display exceeds the

display digits (8 digits) and returns to

"0"

Can change LCD display update cycle (ms). If viewing is difficult due to

display change, set the interval longer, and if quick review is required, shorten the interval.

Unit of flow rate (Numerator):

L, m3, kg,

t, gal

Unit of time (Denominator): s, min, h, d

ON (lights always), OFF (unlit always)

Auto (Lights during operation, turns off

10 sec. after finishing operation)

Only for reference

C−102-1-E

Page 28

C−102-1-E

Measurement range

Flow measurement damping

Low cut

Low cut hysteresis

F.dAmP

F.Prm2

F.Prm3

00-00

01-00

02-00

03-00

04-00

05-00

06-00

07-00

08-00

09-00

10-00

11-00

12-00

13-00

14-00

PAS.wd

02-01

02-02

02-03

02-04

dSP.St

F.Prm1

diAG.S

LP.tSt

A.trim

CHECK

A.Out

P.Out

Er.Out

ALArm

04-01

04-02

04-03

04-04

04-05

Nominal diameter

dimtr

Zero point

CAL.0

Calibration factor

CAL.F

DC type basic cycle

dC.bAS

Coil exciting frequency

dr.Frq

S.Out

St.SEL

Parameter secondary item

Lo.Cut

LC.HyS

Fixed conversion factor

02-05

Con.FC

FL.rnG

Noise failure suppression

Auto gain compensation

AG.Com

03-01

03-02

Flow direction

03-03

FL.dir

In.SuP

*****

m/s

modE

**.***

**.**

"SEL" "Press and hold SEL" "Press and hold ENT" Other

Displays instant flow rate

Displays % flow rate

Displays flow velocity

Setup mode

Set flow parameter 2

Set flow parameter 3

Parameter major item

[Top row display] Selects display

Enter password

Set display

Set flow parameter 1

Set self-diagnosis

Loop test

Analog output trim function

Self-check function

Set analog output

Set pulse output

Set error output

Set alarm

Set status output

Select status output object

ENT

Total flow

Resettable total flow

[Bottom row display] Displays total flow

Parameter name

Layer code (Major item ― Secondary item ― Third item)

Parameter

display symbol

12.2 Display Transition (2) Setting Flow Parameter

Page 29

C−102-1-E

Content of parameter Default Setting range

0.50 to 99.99s (seconds)

On (Valid), OFF (Invalid)

OFF

1.0000E0

specified

0.50

0.0 to 100.0%

Can change the full scale of % flow rate (max. measured flow).

Can change damping time constant for flow measurement. Affects the instant flow rate display and analog output. * Time constant is the time required for the instruction to reach approx. 63% in the step response.

Can change the low cut flow. As flow measurement below setting is not carried out, this is effective for preventing error output due to fluid oscillation (noise) at zero flow rate. Setting is available with the rate (%) to the measurement range.

Can provide the low cut setting with 5% hysteresis. Ex.: At the time of 5% low cut, cutting occurs up to 10% for the measurement range as flow volume is increased. It is cut to 5% at the down time.

Can set the conversion factor of flow rate. Used for fixed density conversion, etc. for conversion to mass flow rate.

0.0000E0 to 9.9999E9

(5 significant digits + 1 exponent digit)

Content of parameter Default Setting range

On (Valid), OFF (Invalid) * As this model uses highly reliable parts, it is

unnecessary to set

Valid" in normal case.

PoS.FL

100

Regulates instant flow rate variation due to impulse type noise, etc. The range for permitting variation is set by % to max. flow measured.

Automatically calibrates and compensates the variation of transmitter internal circuit due to ambient temperature, etc. When this feature is validated, measurement is suspended (display and output are held) for approx. 0.5 sec. at intervals of 24 min. Therefore, do not use this flowmeter in the system requiring response such as in batch measurement.

Sets the flow direction of measured fluid with respect to the flow direction (arrow marking) of the probe.

1 to 100%

* 100% : Function invalid

PoS.FL" (Positive flow),

nEG.FL" (Negative flow)

Content of parameter Default Setting range

Factory

setting

Factory

setting

Factory

setting

Factory

setting

Factory

setting

Displays exciting frequency of probe coil. * Cannot be changed.

Displays the nominal size of probe. * Cannot be changed.

Displays zero point constant of probe. * Cannot be changed.

Displays calibration factor of probe. * Cannot be changed.

Displays measurement reference frequency at the time of DC power on. (Only DC power model) * Cannot be changed.

Value appropriate for your environment is

set at the time of factory shipment.

Appropriate value is set at the time of

factory shipment.

Appropriate value is set at the time of

factory shipment.

Appropriate value is set by the calibration of

actual flow at the time of factory shipment.

Appropriate value is set by the calibration of

actual flow at the time of factory shipment.

0.5 to 10m/s

by flow velocity conversion

Page 30

C−102-1-E

4mA output setting

20mA output setting

Analog output damping

20mA

F.Prm2

F.Prm3

00-00

01-00

02-00

03-00

04-00

05-00

06-00

07-00

08-00

09-00

10-00

11-00

12-00

13-00

14-00

PAS.wd

05-01

05-02

05-03

dSP.St

F.Prm1

diAG.S

LP.tSt

A.trim

CHECK

A.Out

P.Out

Er.Out

ALArm

06-01

06-02

06-03

06-04

06-05

Frequency factor

Fq.FAC

Flow rate factor

rt.FAC

Pulse output low cut

Lo.Cut

Pulse weight

wEit

Pulse calculation mode

P.modE

S.Out

St.SEL

Parameter secondary item

A.dAmP

Analog output low cut

05-04

Lo.Cut

4mA

Status output function

07-01

Status output mode

07-02

S.modE

S.FunC

m/s

modE

**.***

**.**

"SEL" "Press and hold SEL" "Press and hold ENT" Other

ENT

Displays instant flow rate

Total flow

Displays % flow rate

Resettable total flow

Displays flow velocity

Setup mode

Set flow parameter 2

Set flow parameter 3

Parameter major item

[Top row display] Selects display [Bottom row display] Displays total flow

Enter password

Parameter name

Layer code (Major item ― Secondary item ― Third item)

Parameter

display symbol

Set display

Set flow parameter 1

Set self-diagnosis

Loop test

Analog output trim function

Self-check function

Set analog output

Set pulse output

Set error output

Set alarm

Set status output

Select status output object

*****

12.3 Display Transition (3) Setting Output Signal

Page 31

C−102-1-E

Content of parameter Default Setting range

0 to Measurement range setting

* Flow (5 significant digits + 1 exponent digit)

0.0 to 100.0s (seconds)

0.0

specified

0.0000E0

0 to Measurement range setting

* Flow (5 significant digits + 1 exponent digit)

Can change the analog output lower limit flow (flow at 4m A output). When you change the measurement range, change this parameter as necessary. * Unit is subject to the setting of ins tant flow rate display unit.

Can change the analog output upper limit flow (flow at 20mA output). When you change the measurement range, change this parameter as necessary. * Unit is subject to the setting of ins tant flow rate display unit.

Can change the time constant for ana log output damping. This affe cts the flow measurement damping "F.dAmP" in double. * Time constant refers to the time instruction reaches approx. 63% in step response.

Fixes the output to 4mA until a certain amount of flow is reached. It is set in % to ma x. measurement flow. * For details, refer to "ANALOG OUTPUT FUNCTION".

0.0 to 10.0%

Content of parameter Default Setting range

On ACt

no.FunC

Sets the allocation of status output. * For details, refer to "15. STATUS OUTPUT FUNCTION".

Sets status output logic. * For details, refer to "15. STATUS OUTPUT FUNCTION".

no.FunC : Status output not used Err.StS : Error, alarm, status output HL.ALA :

Higher and lower limit alarm output

FLo.dir : Flow direction

OFF.ACt : Off, Active

On.ACt : On, Active

Content of parameter Default Setting range

0.0

Can select pulse output mode. (Frequency pulse or Factored pulse) * Note that changing this parameter resets the total value.

Sets the full-scale frequency of "Frequency pulse". * This is not displayed when "Factored pulse" is selected.

Sets the flow rate at the full-scale frequency output of "frequency pulse". * This is not displayed when "Factored pulse" is selected.

Stops output pulse until a certain amount of flow is reached. Sets by the rate of pulse output to full-scale flow. * This is not displayed when "Factored pulse" is selected.

Sets the flow rate per one pulse of "Factored pulse". Unit is subject to the set ting of total flow unit. * This is not displayed when "Frequency pulse" is selected.

"FrEq" (Frequency pulse)

"WEit" (Factored pulse)

1 to 10000 Hz

0 to Measurement range set flow

* 5 significant digits + exponent

0.0 to 10.0%

Set the flow rate so that the frequency

at max. flow rate is within 10,000 Hz.

* (5 significant digits + exponent)

(Note)

NOTE: Changing these parameters resets the total value.

Page 32

C−102-1-E

Overflow error

Abnormal hardware error

Parameter alarm

H.FAiL

F.Prm2

F.Prm3

00-00

01-00

02-00

03-00

04-00

05-00

06-00

07-00

08-00

09-00

10-00

11-00

12-00

13-00

14-00

PAS.wd

08-01

08-02

08-03

dSP.St

F.Prm1

diAG.S

LP.tSt

A.trim

CHECK

A.Out

P.Out

Er.Out

ALArm

10-01

10-02

10-03

Low alarm point

AL.Lo

High/Low alarm hysteresis

AL.HyS

High alarm point

AL.Hi

S.Out

St.SEL

Parameter secondary item

Parameter major item

Prm.AL

Output saturation alarm

08-04

SAt.AL

OF.Err

Measurement error signal alarm

Empty tube detection alarm

Fixed output state

EmP.AL

08-05

08-06

08-07

FOut.S

Self-diagnosis execution state

08-08

diAG.S

SiG.AL

Analog output at error 09-01

Pulse output at error 09-02

Er.PLS

Er.AnA

m/s

modE

**.***

**.**

"SEL" "Press and hold SEL" "Press and hold ENT" Other

Parameter name

Layer code (Major item ― Secondary item ― Third item)

Parameter

display symbol

ENT

Displays instant flow rate

Total flow

Displays % flow rate

Resettable total flow

Displays flow velocity

Setup mode

Set flow parameter 2

Set flow parameter 3

[Top row display] Selects display [Bottom row display] Displays total flow

Enter password

Set display

Set flow parameter 1

Set self-diagnosis

Loop test

Analog output trim function

Self-check function

Set analog output

Set pulse output

Set error output

Set alarm

Set status output

Select status output object

*****

12.4 Display Transition (4) Setting Error and Alarm Output

Page 33

Content of parameter Default Setting range

On (Valid), OFF (Invalid)

0.0000E0

OFF

Content of parameter Default Setting range

ZEro

dn.SCLE

Can select the analog output status at the time of error detection. * For details, refer to "ANALOG OUTPUT FUNCTION".

Outputs when flow exceeds the preset measurement range.

Outputs when there is an abnormal error in the flowmeter hardware.

Outputs when parameter setting is inappropriate.

Outputs when analog or pulse output exceeds the preset higher or lower limit.

Outputs alarm when measurement signal is abnormal (noise superimpose, etc.)

Outputs alarm when the electrode of probe is not wetted.

Outputs status while pulse and analog fixed outputs are being generated in a loop test.

Outputs when self-diagnosis is being carried out by key operation or through communication.

Sets the pulse output mode at the detection of an error. * For details, refer to "PULSE OUTPUT FUNCTION".

"dn.SCLE" : Down scale (2.4mA), "HoLd", "ZEro" : 4mA, "no.FunC" : Not assigned, "uP.SCLE" : Up scale (21.6mA)

"ZEro": 0Hz, "no.FunC": Not assigned, "uP.SCLE": Up scale (110% of max. output), "HoLd"

Content of parameter Default Setting range

Sets the High alarm point. When a flow greater than the preset flow occurs, this alarm turns on. (Operates when status output function is assigned to High/Low alarm point setting.) * Unit is subject to the setting of instant flow rate display unit.

Sets the Low alarm point. When a flow smaller than the preset flow occurs, this alarm turns on. (Operates when status output function is assigned to High/Low alarm point setting.) * Unit is subject to the setting of instant flow rate display unit.

Sets the hysteresis width of High and Low alarm points. * Unit is subject to the setting of instant flow rate display unit.

Set the value in the range greater than Low alarm point and smaller

than High measurement limit flow.

* 5 effective digits + exponent

Set the value in the range smaller than

High alarm point and greater than 0.

* 5 effective digits + exponent

C−102-1-E

Page 34

C−102-1-E

Parameter third item

"SEL" "Press and hold SEL" "Press and hold ENT" Other

ENT

Displays instant flow rate

Total flow

Displays % flow rate

Resett able total flow

Displays flow velocity

Setup mode

Circuit voltage monitoring

Coil exciting circuit error diagnosis

CoiL.S

Set flow parameter 2

F.Prm2

Set flow parameter 3

F.Prm3

Parameter major item

[Top row display] Selects display

[Bottom row display] Displays total flow

Enter password 00-00

01-00

02-00

03-00

04-00

05-00

06-00

07-00

08-00

09-00

10-00

11-00

12-00

13-00

14-00

PAS.wd

11-01

11-02

Set display

dSP.St

Set flow parameter 1

F.Prm1

Set self-diagnosis

diAG.S

Loop test

LP.tSt

Analog output trim function

A.trim

Self-check function

CHECK

Set analog output

A.Out

Set pulse output

P.Out

Set error output

Er.Out

Set alarm

ALArm

12-01

12-02

12-03

Pulse fixed output

LP.PLS

Status fixed output

LP.StS

Analog fixed output

LP.AnA

Set status output

S.Out

Select status output object

St.SEL

Parameter secondary item

Cirt.S

Measurement error signal diagnosis

11-03

SiGL.S

Empty pipe detection diagnosis

11-04

Enpy.S

RS485 communication speed

Polling address

PoL.Ad

14-03

14-04

bAu.br

LCD check

14-05

ALL.on

Maintenance and calibration mode

14-06

otHEr

Circuit voltage diagnosis

Coil, exciting circuit diagnosis

Coil.C

14-02-01

14-02-02

Cirt.C

Measurement signal diagnosis

14-02-03

SiGL.C

Empty detection function 14-02-04

EmPy.C

Analog output 4mA output adjustment

13-01

Analog output 20mA output adjustment

13-02

trm.20

trm.04

Self-diagnosis, overall 14-01

Self-diagnosis, individual

14-02

mAnu

Auto

m/s

modE

**.***

*****

**.**

Parameter name

Layer code (Major item ― Seconda ry item ― Third item)

Parameter

display symbol

12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions

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Content of parameter Default Setting range

Off

Monitors the current flowing through the coil exciting circuit and diagnoses for abnormality. * This setting is valid in the auto self-diagnosis in normal measurement. When diagnosis is started from Menu or through communication, diagnosis is carried out regardless of this setting.

Diagnoses the circuit voltage in the transmitter. * This setting is valid in the auto self-diagnosis in normal measurement. When diagnosis is started from Menu or through communication, diagnosis is carried out regardless of this setting.

Diagnoses whether or not noise, etc. is superimposed on flow measurement signal. * This setting is valid in the auto self-diagnosis in normal measurement. When diagnosis is started from Menu or through communication, diagnosis is carried out regardless of this setting.

This is set for identifying the instruments when two or more instruments are connected in multiple points. Set the parameter so that instruments with duplicated address are not present. In the case of 1 to 1 connection, leave the parameter at "0".

Diagnoses whether or not electrode of probe is wetted and diagnoses the state of error entry in the pipe under measurement. * This setting is valid in the auto self-diagnosis in normal measurement. When diagnosis is started from Menu or through communication, diagnosis is carried out regardless of this setting.

On, OFF

Content of parameter Default Setting range

―

19200

0 to 63

(2 integer digits)

Not disclosed

―

― ―

Content of parameter Default Setting range

Outputs the specified current from analog output.

Outputs pulse of the specified frequency from pulse output.

Outputs the specified level from status output.

Adjusts analog 4mA output.

Adjusts analog 20mA output.

Diagnoses the circuit voltage in the transmitter.

Monitors the current flowing in coil exciting circuit and diagnoses for any abnormality.

Diagnoses whether or not noise, etc. are superimposed on flow measurement signal.

Diagnoses whether or not the electrode of probe is wetted and judges the error entry state in the pipe under measurement.

Sets the baud rate of RS-485 communication for setting.

Lights all segments of LCD.

Mode dedicated to OVAL service personnel

Content of parameter Default Setting range

Executes all self-diagnosis items provided and displays the results.

Content of parameter Default Setting range

9600bps,19200bps,38400bps

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13. ANALOG OUTPUT FUNCTION

This flowmeter is equipped with analog output function to meet 4-20mA current loop and is able to provide an output by converting the instant flow rate to analog signal. It can provide analog output in the desired range with respect to the preset measurement range. The load resistance of the analog output is 510Ω max. (including cable resistance)

13.1 Setting Analog Output

Analog output setting is available at "A.Out" of the setup menu. → Refer to "12.3 Setting Analog Output".

■ Setting 4mA output flow

Sets the flow rate with 4mA output.

■ Setting 20mA output flow

Sets the flow rate with 20mA output.

NOTE: The settable flow rate is in the range that does not exceed the parameter-set measurement range.

■ Time constant at analog output damping

Regulates the variation of analog output. The longer the time constant, the better the output variation is

regulated. However, the response will become slower.

NOTES: 1. Time constant is the time required for the output to reach approx. 63% of the target value.

2. As "Flow measurement damping F.dAmP" of the parameter related to flow rate calculation is set to 0.5s as standard, the response of actual analog output is the one added by this flow measurement damping.

■ Analog output low cut

The output is fixed to 4mA until the specified flow rate is reached. It is set by % to the output span. Low cut (%) = (20mA flow rate - Low cut flow rate) / (20mA flow rate - 4mA flow rate) X 100 Example of analog output: (In case 20L/min is set to 4mA, 29.5L/min to 20mA, and low cut to 10%)

NOTE: As the "Low cut Lo.Cut" of the parameter related to flow calculation is set to 5% as standard, setting

analog output low cut smaller than 5% allows the flow rate of 5% or less is cut in the actual analog output.

13.2 Analog Output at Error/Alarm

When specific error or alarm (*) occurs during measurement, it can be reported by analog output value.

Up scale : Sets the output current to max. output 20mA + 10% or 21.6mA. Down scale (standard setting) : Sets the output current to min. output 4mA - 10%, or 2.4mA. Zero : Sets the output current to 4mA. Hold : Holds the output (retains the output value just before the occurrence of error

or alarm).

No assignment : Outputs the current in response to the flow instruction regardless of error/

alarm occurrence.

After clearing error/alarm, normal output is restored automatically.

NOTE: * Error/alarm that is generated when normal measurement is not available

→ Refer to "20. ERROR/ALARM STATUS LIST".

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Adjustment of 4mA output

SEL : Changes numeral Press and hold SEL : Cancel ENT : Shifts digit Press and hold ENT : Fix

Pressand

holdENT

Pressand

holdENT

The numeral on the bottom row of LCD blinks and 4mA is output from the transmitter.

Enter the ammeter reading at this time in the same way as that of normal parameter setting.

Confirm the entry by "Press and hold ENT".

When the entry is confirmed, 4mA after adjustment is output.

13.3 Adjusting Analog Output

The current of analog output has been adjusted at the time of factory shipment. If, however, any error is present in the output value and measurement value depending on your service environment, adjustment of the current of analog output is available. Analog output adjustment begins from "A.trim" of Setup mode.

■ Preparation for adjustment

Connect the ammeter to the analog current loop in series. (Using the current monitoring function of the connected measurement, control instrument, etc. are also permitted.)

Be careful not to cause unexpected operation of external instrument due to variation of current.

■ Adjustment of 4mA output

Enter the adjustment mode from "trm.04" (layer code 13-01) of "A.trim" submenu in the Setup mode.

Perform adjustment for 20mA from the menu "trm.20" in the same manner. After setting, "Press and hold SEL" from the Menu to return to "A.trim" display. Then simulative output is cleared and normal output state is restored. (Simulative output continues in the "A.trim" submenu.)

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Output pulse waveform

Open drain pulse output

Voltage pulse output

* Under 1Hz, ON width is fixed at 500ms.

Open

Pulse width Duty ratio 50% (*)

14. PULSE OUTPUT AND TOTALIZING FUNCTION

This flowmeter is equipped with pulse output function. It can output factored pulse to which weight per pulse is added in advance or pulse with a frequency proportional to the flow rate. Frequency pulse is an open drain pulse in the range of 0.01 to 11kHz or 18V voltage pulse (depending on delivery specifications).

NOTE: Voltage pulse has a configuration where 18V is applied to the drain terminal in the transmitter.

As current regulating resistance of 2.2kΩ is added, the output voltage at ON decreases in proportion to the current output.

CAUTION: The maximum capacity of open drain pulse output terminal is 30V/50mA. An

entry exceeding this rating may result in the failure of the transmitter.

14.1 Setting Pulse Output

Pulse output setting is performed from the "P.Out" submenu of the Setup menu.

■ Setting pulse output mode

Sets the function of the pulse output. Either frequency pulse mode or factored pulse mode (weighted pulse) can be selected. Pulse calculation mode setting is carried out from "P.Out" → "P.modE" of the Setup menu.

󱾀 Frequency pulse mode

Output frequency is determined by using frequency factor and the flow rate at a certain point. The output frequency is determined by the following formula. Output frequency (Hz) = Frequency factor (Hz) X Instant flow rate / Flow factor The flow rate (weighting) per pulse is determined by the following formula (when instant flow rate unit is L/min). Pulse weighting (L/P) = Flow rate factor (L/min) / 60 / Frequency factor (Hz)

Fig. 14.1

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Max.11kHz

Frequency factor

Flow rate factor

Instant flow rate

Pulse output frequency

󱾀 Factored pulse mode

In this method, flow rate per pulse is specified. This mode is used when pulse output is entered to the total counter, etc. The output frequency is determined by the following formula (when instant flow rate unit is L/min and total flow unit is L).

Output frequency (Hz) = Instant flow rate (L/min) / 60 / Pulse weighting (L/P) Set the output frequency so that at the time of maximum flow is 10kHz or less. Frequency exceeding 11kHz cannot be output.

■ Setting frequency factor (Set in the case of frequency pulse mode)

Th e frequ ency to be output when ins tant flo w rate reache s the flo w facto r setti ng valu e. (10Hz (recommended) to 10kHz)

■ Setting flow rate factor (Set in the case of frequency pulse mode)

Set the flow rate for outputting the frequency factor set value.

(Frequency pulse mode setting image)

■ Setting pulse weighting (Set in the case of factored pulse mode)

Set the flow rate per pulse.

14.2 Pulse Output at Error/Alarm

This function is to report a specific error or alarm (*) that arises during measurement by means of pulse output frequency. Pulse output is changed to one of the following specific frequencies.

Zero (standard setting) : Stops pulse output (0Hz). Hold : Continues outputting the frequency just before the occurrence of error/alarm. Up scale : Outputs the pulse frequency corresponding to the flow rate where instant flow rate

No assignment : Outputs the frequency corresponding to the instant flow rate indication regardless

After clearing error/alarm, normal output restores automatically.

NOTE: * For the error/alarm that occurs when normal measurement becomes unavailable, refer to "20.

Fig. 14.2

is 110% of the measurement range.

of the occurrence of error/alarm.

ERROR/ALARM STATUS LIST".

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(On・Active)

(Normal) (Alarm occurrence) (Normal recovery)

Transistor

OFF

Transistor

(Off・Active)

Transistor

OFF

Transistor

15. STATUS OUTPUT FUNCTION

This flowmeter has a status output function that can output error/alarm and status information. Status output is open collector output.

15.1 Selecting Status Output

■ Allocating status output

Sets the function allocated for status output. Setting is selectable from no allocation, error/alarm output, high-low alarm output, or flow direction. Error/alarm detection is selected from "Er.Out" of the Setup menu and the higher/lower limit alarm output setting is selected from "ALArm" of the Setup menu. (Refer to "20. ERROR/ALARM STATUS LIST".)

■ Status output mode

Sets the mode (logic) of status output. Setting is selectable from Off・Active (transistor ON normally, OFF at output) and On・Active (transistor OFF normally, ON at output).

Fig. 15.1

15.2 High/Low Limit Alarm Function

This is a function to report as alarm when flow rate indication exceeds the preset range. The high/low limit alarm is validated when status output is allocated to the high/low limit alarm. The setting related to the high/low limit alarm is carried out from the "ALArm" submenu of the Setup menu.

■ High alarm point and low alarm point

Sets the threshold level of the flow rate. If the flow rate exceeds the higher limit or goes below the lower limit, an alarm is generated.

■ Alarm hysteresis

In order to prevent chattering at the flow rate nearby the high limit or low limit, providing hysteresis is available. When the flow rate exceeds the high alarm point, reducing the flow rate goes down to High alarm point setting - Hysteresis setting allows the alarm to be cleared. When the flow rate goes below the low alarm point, increasing the flow rate up to Low alarm point setting + Hysteresis setting allows the alarm to be cleared.

15.3 Flow Direction Output Function

Output corresponds to the sign of flow direction. In the case of reverse flow (when instant flow rate indicated on LCD display shows negative value), active output is generated.

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Simulative output (Analog output)

SEL : Changes numeral Press and hold SEL : Cancel ENT : Shifts digit Press and hold ENT : Fix

Confirm the entry by "Press and hold ENT".

After Confirmation, "Out" blinks and the set current is output.

"Press and hold SEL" stops output and returns to the original screen.

Set the current value of output.

Pressand

holdENT

Pressand

holdENT

Pressand

holdSEL

16. LOOP TEST (SIMULATIVE OUTPUT) FUNCTION

With this function, simulative output of analog, pulse and status is carried out for verifying the connection between this flowmeter and external instruments. The loop test is operated from the "LP.tSt" submenu under the Setup mode.

■ Analog simulative output

Outputs a desired current (2.4mA to 21.6mA) from the analog output terminal.

■ Pulse simulative output

Outputs a pulse of desired frequency from the pulse output terminal.

■ Status simulative output

Outputs ON or OFF from the status output terminal simulatively.

16.1 Simulative Output Operation

Select the item to be output simulatively from the "LP.tSt" submenu of the Setup menu.

Both pulse and status simultative output operations can be performed by the same procedure. When 10 minutes pass without any key operation during output operation, output stops and the Measure mode is restored.

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C−102-1-E

ERR.

ALM.

PC with communication software installed

(*1)

RS-485

communication

interface

MAG-OVAL III output signal terminal RS-485

−

17. COMMUNICATION FUNCTION

This flowmeter is capable of monitoring measurement value, logging and saving of instant flow rate in CSV format. In addition, changing, saving, etc. of parameters locally or remotely is available by the use of dedicated communication software "LinkTop for MAG-OVAL" to be purchased separately. For the handling of the communication software, refer to the instruction manual of "LinkTop for MAG-OVAL".

17.1 Communication Specifications

■ Specifications (Communication software "LinkTop for MAG-OVAL")

Item Specifications

Physical layer

RS485 (*1), Bell202 (Bell202 communication spec. for MAG-OVAL III is supported specifically.)

Communication system Master slave system

Communication baud rate

RS485 communication : 9600, 19200, 38400bps Bell202 : Fixed at 1200bps

Supporting OS Memory (RAM) Hard disk

Operating environment

Windows XP, Windows Vista, Windows 7 256MB or more Free space of 10MB or more

・ Monitoring of measurement value (Numeral display, graphic display)

Functions

・ Logging and saving of instant flow rate, % flow rate, flow velocity

(Storage format: CSV file, Logging period: 0.2 sec. to 1 hour) (*2)

・ Reading, setting change, saving of parameter

■ Example of display screen of communication software

■ Connection with personal computer

As the flowmeter has no built-in terminating resistor, attach a terminating resistor of 120Ω/0.5W at the line terminating section.

NOTES: *1: RS485 communication interface is not supplied with the flowmeter. Use the RS485-USB

*2: As communication baud rate is low with the Bell202 communication spec., the shortest logging

converting adapter available on the market.

period is 1 second.

Fig. 17.1

Fig. 17.2

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17.2 Setting Communication Functions

Setting of communication functions is carried out in the CHECK submenu under the Setup menu.

■ Setting baud rate

Baud rate is set from "bAud.r" of the CHECK submenu under the Setup menu. It can be selected from 9600bps, 19200bps, or 38400bps. → Refer to "12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions".

■ Setting polling address

Polling address is set from "P.Addr" of the CHECK submenu. → Refer to "12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions". Polling address is set for identifying the instrument when two or more instruments are connected at the multiple points on the same communication line. Be sure to set the polling address so that no instruments of the same address exists on the same communication line. In the case of 1 to 1 connection, use the default value (0).

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18. SELF-DIAGNOSIS FUNCTION

This flowmeter is equipped with self-diagnosis function. Use this function for early detection of abnormality, troubleshooting, etc. Flow measurement can continue even during self-diagnosis operation. Diagnosis can be executed periodically even normal measurement is in operation. This function reports an error or alarm if any abnormality is found. Self-diagnosis can be operated automatically or manually from the Setup menu. Regarding the self-diagnosis during normal measurement, valid or invalid can be switched per item through self-diagnosis setting. In the case of diagnosis being operated by manual operation, diagnosis is implemented instead of selfdiagnosis setting. → Refer to "12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions".

18.1 Self-diagnosis Items

■ Circuit voltage measurement

Measures voltages in the transmitter circuits. If the voltage is out of the specified range, normal measurement may not be performed. If diagnosis shows abnormality, contact your nearest sales office or service center.

■ Coil and exciting circuit abnormality diagnosis

Checks for any abnormality in the coil or exciting circuit of the probe. If the measurement value is outside the specified range, exact measurement may not be performed. If diagnosis shows abnormality, contact your nearest sales office or service center.

■ Empty detection diagnosis

Checks whether the electrode of the probe is wetted or not. As this flowmeter is based on the assumption that the pipe measured is filled completely, exact measurement may not be achieved with empty pipe. If abnormality judgment occurs, make sure the pipe is full of fluid. If abnormality judgment occurs regardless of the full state of pipe, abnormality in the probe or transmitter is suspected. Contact your nearest sales office or service center.

NOTE: Empty detection may not function if inside the probe is wetted.

■ Measurement error signal diagnosis

Investigates whether or not the measurement signal level inside the transmitter is within the specified range. Typically, when noise is superimposed on the measurement signal due to poor grounding, abnormality judgment will occur.

NOTE: Make sure grounding is correct in accordance with grounding procedure. If the abnormality is not

cleared even after the inspection of grounding, contact your nearest sales office or service center.

Page 45

18.2 Diagnosing All Items

Started by "Press and hold ENT".

Ex. Er-21

Abnormality found in coil, exciting circuit

"Press and hold SEL" returns to the original screen.

The screen during self-diagnosis. An item in self-diagnosis operation is indicated on the bottom row of LCD. Display changes in the sequence of Cirt.C → CoiL.C → SiGL.C → EnnPy.C.

Self-diagnosis menu

Pressand

holdENT

Pressand

holdSEL

No abnormality

Abnormal

This function executes self-diagnosis of all four items and displays the results. This function is activated by self-check function "CHECK" of the Setup mode (layer code 14-00).

C−102-1-E

When diagnosis is completed, the results are displayed. If no abnormality is found, "Good" is displayed. If abnormality is found in any of diagnosis items, error or alarm No. of the corresponding item is displayed. For the details of error/alarm, refer to "20. ERROR/ALARM STATUS LIST".

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C−102-1-E

PressandholdENT

Pressand

holdSEL

Started by "Press and hold ENT".

Measurement value and judgment result are displayed alternately at certain intervals.

Coil, exciting circuit abnormality diagnosis

No abnormality

Abnormal

"Press and hold SEL" restores original screen.

PressandholdENT

Pressand

holdSEL

"Press and hold ENT" lights all displays on the LCD.

LCD CHECK

"Press and hold SEL" restores original screen.

18.3 Diagnosing Self-diagnosis Items Individually

Individual self-diagnosis item can be selected from the menu by entering "mAnU" submenu under "CHECK" submenu.

If no abnormality is found, "Good" is displayed. If abnormality is found, "FAiL" is displayed. If any abnormality is present, please inform OVAL of the abnormal item with the measurement value for quick study of cause and countermeasure.

19. LCD CHECK

This function displays all segments of LCD for verifying the soundness of the display.

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C−102-1-E

(S.Out)

setting and

Depends on

status output

(St.SEL)

status output

item selection

or equiv.

Output with

flow rate 110%

(21.6mA)

Output 110%

Analog output Pulse output Status output

Display/Output

display

Total flow

Instant flow rate

or equiv.

Totalized with

flow rate 110%

display

or equiv.

displayed

Flow rate 110%

At the

occurrence of

At the

occurrence of

setting.

error, output is

output (Er.PLS)

subject to pulse

setting.

(Er.ANA)

subject to

analog output

error, output is

Stopped (0%) Not totalized

output

Normal

measurement

output

Normal

measurement

Normal

totalizing

operation

displayed

flow rate is

Normal instant

At the

occurrence of

At the

occurrence of

setting.

error, output is

output (Er.PLS)

subject to pulse

setting.

(Er.ANA)

subject to

analog output

error, output is

Stopped (0%) Not totalized

output

Normal

measurement

output

Normal

measurement

Normal

totalizing

operation

displayed

flow rate is

Normal instant

Set hysteresis value equal to or lower than the difference

Adjust flow so that % flow rate is less than 110% or increase

the setting of the measurement range.

Disconnection of exciting coil or transmitter failure (*2)

Trouble in data input to FRAM (memory) or faulty part (*2)

Failure in data communication with built-in CPU or faulty part

(*2)

Fault in probe or transmitter (*2)

Faulty transmitter (*2)

Set the measurement range within 0.5 to 10m/s in

conversion to flow velocity.

Analog output setting exceeds the limit. Set the output to the

value within the limit.

→ See "13. ANALOG OUTPUT FUNCTION".

Flow rate exceeds 110% of

measurement range.

Abnormality in probe exciting

coil or transmitter exciting

circuit (*1)

Abnormal data written in

FRAM (memory)

Abnormal update of internal

data

Transmitter amp.

compensation standard is

not appropriate and normal

flow rate calculation is not

available.

Abnormal circuit voltage in

transmitter *1

State where abnormality is

present in the setting of

measurement range.

Entered analog output high/

low limit alarm point setting

is not appropriate (exceeding

the limit).

CoiL.Cir Er-21

error

Coil excitation

Overflow error Overflow error OvEr.FLo Er-11

Category Error name Message Code Description Cause and Countermeasure

20. ERROR/ALARM STATUS LIST

20.1 Error/Alarm List

dAtA.updt Er-23

error

Amplifier

Internal data

Memory error PArA.FrA Er-22

Hardware

abnormal error

Error

Cir.voLt Er-25

HArd.Ap Er-24

hardware error

SEt.FL.Hi AL-31

SEt.FL.Lo AL-32

SEt.A.Out AL-33

error

range higher

Measurement

Circuit voltage

alarm

limit alarm

Measurement

range lower limit

alarm

Analog setting

alarm

Parameter

between High alarm and Low alarm points

Adjust the flow so that analog output is in the range of 4 to

20mA or change the high/low limit of analog output.

Adjust the flow so that pulse output frequency is 10kHz or

less or change the pulse weight or frequency factor to the

appropriate value.

Fault is present in the measurement signal of transmitter.

Verify that flowmeter is grounded correctly or no object is

adhered on the electrode of the probe.

Perform air bleeding of the pipe under measurement and

always keep the pipe filled with liquid.

Adjust the flow to be lower than High alarm point or increase

the setting of High alarm point.

Adjust the flow to be higher than Low alarm point or

・Set High alarm point below measurement range setting

・Set Low alarm point below High alarm point

・

Entered alarm point setting is

not appropriate (exceeding

the limit).

Analog output reached the

low limit of 2.4mA or high

limit of 21.6mA.

Pulse output frequency

reached the high limit of

11kHz.

Abnormal transmitter

measurement signal (*1)

Pipe under measurement is

not filled with liquid

(electrode is exposed). *1

AL-41

SEt.ALAr AL-34

setting alarm

High/Low point

P.Out.SAtu AL-42

A.Out.SAtu

Pulse output

Analog output

saturation alarm

Output

saturation

Alarm

Measurement

saturation alarm

alarm

Measurement

E.PiPE AL-44

SiG.QuAL AL-43

alarm

signal alarm

Empty detection

alarm

signal abnormal

Empty detection

decrease the setting of Low alarm point.

Low limit alarm F.r.Lo AL-46 Low limit alarm occurring

High limit alarm F.r.Hi AL-45 High limit alarm occurring

alarm

High/Low limit

*2: If rebooting does not clear the trouble, contact OVAL representative you purchased the product, your nearest OVAL sales office, or service center.

NOTES: *1: Occurs when self-diagnosis setting is valid. Refer to "12.5 Display Transition (5) Setting Diagnosis and Maintenance Functions".

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20.2 Other Statuses

About measurement and output in individual status

Display status (*) Output operation

Instant flow

rate

Normal display

Total flow

Normal

totalizing

operation

Totalization

stopped

Normal

totalizing

operation

Analog

output

Simulating

output

Normal

measurement

output

Pulse output Status output

Normal

measurement

output

Simulating

output

Normal

measurement

output

Depends on

output setting

Simulating

output

Depends on

output setting

Loop test

Self-

diagnosis

Status

In analog simulating output

In pulse simulating output

In status simulating output

In circuit voltage monitoring

In coil exciting circuit

abnormality diagnosis

In measurement error signal

diagnosis

In empty detection diagnosis

In other mode display

Measurement

status

Normal

measurement

NOTE: * Even during loop test (simulating output), flow display shows actual flow rate measured.

About status display during external operation through communication

When special operation or processing is executed through communication (at the execution of individual functions, etc.), the following message or code is displayed on the LCD display of the transmitter. When the operation is stopped or cleared, the message will disappear.

Status Display

Status category

Simulating output

Self-diagnosis

Message displayed

on transmitter

A.Out.Fi St-60 Simulating output of analog output is in process.

P.Out.Fi St-61 Simulating output of pulse output is in process.

S.Out.Fi St-62 Simulating output of status output is in process.

SELF.d.VoL St-70 Self-diagnosis-circuit voltage diagnosis is in process.

SELF.d.CoI St-71

SELF.d.SiG St-72

SELF.d.PiP St-73

Error is a state where setting is inappropriate or normal flow measurement is not available due to occurrence of significant problem. Alarm is a state where measurement is executed but output or display is not available normally. Status is to report the specific processing or operation (self-diagnosis, etc.) is in process through communication (not affecting the measurement).

Status code displayed

on transmitter

Description

Self-diagnosis-exciting coil, exciting circuit diagnosis is in process.

Self-diagnosis-measurement signal diagnosis is in process.

Self-diagnosis-measurement pipe empty detecting function is in process.

Page 49

21. PARAMETER LIST

Major item Item on parameter sheet Parameter name

Device (transmitter)

information

Flow parameter

Transmitter setting

(Field device

variable)

Analog output

Pulse output

Status output

Status output item

selection

(Status output

select)

Error output

High/Low alarm

(H/L alarm)

Self-diagnosis

(Self diag)

Display setting

Security

Analog adjustment

(Trim Analog)

Tag

Descriptor

Message

Date

Device ID

Sensor serial No.

Final assembly No.

Flange type

Flange material

Liner material

Electrode type

Electrode material

Hardware rev

Nominal diameter

Flow range

Flow rate unit

Total flow unit

Flow damp

Low cut

Low cut hys

I.F. suppress factor

Calibration zero

Calibration factor

Auto gain compensation

Flow direction

Conversion factor

Upper range value

Lower range value

Analog Low cut

Analog Damp

Pulse operation mode

Freq factor

Rate factor

Low cut

Pulse weight

Status output function

Status output mode

Overflow error

Hardware failure

Parameter alarm

Saturated alarm

Measurement signal alarm

Empty pipe alarm

Fixed output

Self diag in progress

Analog error output

Pulse error output

High alarm point

Low alarm point

H/L alarm hys

Circuit voltage

Exciting coil/circuit

Measurement signal

Empty pipe

Flow rate decimal

Total flow decimal

Variables display cycle

Back light set

Password option

Setting password

4mA adjust value

20mA adjust value

Tag number

Descriptor

Message

Date of manufacture

Device ID

Sensor serial No.

Serial No.

Flange rating

Flange material

Liner material

Electrode type

Electrode material

Hardware revision

Nominal diameter

Measurement range

Instant flow rate unit

Total flow unit

Flow measurement damp

Low cut

Low cut hysteresis

Noise trouble suppression

Zero point

Calibration factor

Auto gain compensation

Flow direction

Fixed conversion factor

Analog output upper limit flow

Analog output lower limit flow

Analog output low cut

Analog output damping

Pulse operation mode

Frequency factor

Flow rate factor

Pulse output low cut

Pulse weight

Status output function

Status output mode

Overflow error

Hardware failure

Parameter alarm

Output saturation alarm

Measurement error signal alarm

Empty pipe detection alarm

Simulating output state

Self-diagnosis in process

Analog output at error

Pulse output at error

High alarm point

Low alarm point

High/Low alarm hysteresis

Circuit voltage monitoring

Coil exciting circuit abnormality diagnosis

Measurement error signal diagnosis

Empty detection diagnosis

No. of instant flow rate digits below decimal point

No. of total flow digits below decimal point

Screen display update cycle

Back light setting

Password function setting

Setting password

4mA adjust value Factory set

20mA adjust value Factory set

C−102-1-E

Reference/setting on display

Reference to

setting

○ 04−02 ○ ○ 02−01 ○ ○ 01−02−01 ○ ○ 01−02−03 ○ ○ 02−02 0.50sec ○ ○ 02−03 5 % ○ ○ 02−04 OFF ○ ○ 03−01 OFF ○ 04−03 ○ 04−04 ○ ○ 03−02 OFF ○ ○ 03−03 Positive Flow ○ ○ 02−05 1.0000 ○ ○ 05−02 ○ ○ 05−01 00000E0 ○ ○ 05−04 0.0 % ○ ○ 05−03 0.0 sec ○ ○ 06−01 ○ ○ 06−02 ○ ○ 06−03 ○ ○ 06−04 ○ ○ 06−05 ○ ○ 07−01 No Function ○ ○ 07−02 On Active ○ ○ 08−01 OFF ○ ○ 08−02 OFF ○ ○ 08−03 OFF ○ ○ 08−04 OFF ○ ○ 08−05 OFF ○ ○ 08−06 OFF ○ ○ 08−07 OFF ○ ○ 08−08 OFF ○ ○ 09−01 Downscale ○ ○ 09−02 Zero ○ ○ 10−01 0.0000E0 ○ ○ 10−02 0.0000E0 ○ ○ 10−03 0.0000E0 ○ ○ 11−01 ON

○ ○ 11−02 ON

○ ○ 11−03

○ ○ 11−04 ON

○ ○ 01−02−02

○ ○ 01−02−04

○ ○ 01−04 500ms ○ ○ 01−03 Auto ○ ○ 01−01−01 OFF ○ ○ 01−01−02 0000

Setting change

Layer code of

display

transition table

Subject to measurement

Default

As specified

Factory set

As specified

OFF

range

Page 50

C−102-1-E

22. GENERAL SPECIFICATIONS

Item Description Nominal size (mm) 3, 6, 10, 15 25, 40, 50, 80, 100 150 Connection Screw-in type (G male thread) Wafer type (Sandwich design for installation between flanges) Applicable liquids Liquids (water, industrial water, slurries, chemical liquids, solutions) * Only conductive liquids Flow range See the table on the next page.

Operating temp. range

Max. operating pressure Depending on connection standard (Max. allowable pressure for flowmeter: 2.94MPa)

Accuracy

Repeatability ±0.1% of full scale

Materials

Excitation A square wave excitation is used. Minimum conductivity 10μS/cm

Display (LCD digital display)

Output

Alarm/Error detecting function

Communication function

Power supply AC spec.: 85 to 264VAC 50Hz, 60Hz or DC spec.: 20 to 30VDC (to be selected) Power consumption 20VA max. Cable entry G1/2 X 2 places Power cord Shielded cable for general instrumentation 1.25mm2 or less Mounting structure Probe and transmitter built in one (Nominal size 3, 6mm is to fix the transmitter using dedicated mounting bracket) Straight pipe length

required

Physical orientation

Enclosure protection Dust tight/watertight enclosure: IP66 Explosionproof rating: Non-explosionproof

Finish

Fluid -10 to +130°C Ambient -20 to +60°C

Nominal size

* In case of analog output, ±0.2% of full scale is added.

Probe Flow tube: Stainless steel (SUS304 or equiv.) Probe housing: Steel plate Lining Fluorocarbon polymers (PFA) Fluorocarbon polymers (PTFE)

Electrodes

Earth electrode Transmitter Aluminum die-cast

Analog

Pulse

Status

Probe Phthalate resin finish Color: Munsell N1.5 (black) Transmitter Baked melamine finish Color: Body: Munsell 10B8/4 (Light blue) Lid: Munsell 2.5PB4/10 (Blue)

・SUS316L ・Alloy C276 (equiv. to Hastelloy C) ・Tantalum ・Platinum

Same as electrode SUS316 (Earth ring system)

・5 digits of 8 segments + 8 digits of 7 segments + Unit indicator (with backlight) ・Top row (5 digits): (1) Instant flow rate

(2) % instant flow rate Switching among these items is available with a selector magnet. (3) Flow velocity Unit of flow rate can also be selected by parameter setting.

・Bottom row (8 digits): (1) Total flow (Display can be rotated by 90° steps over 360°.)

(2) Resettable total flow

・Operation switch (magnet switch type): 2 pieces

4 to 20mA Load resistance 510Ωmax. Operation at the occurrence of abnormality: Down scale 2.4mA (default)

・Signal form: Either open drain pulse output or voltage pulse output is selected.

(1) Open drain pulse output Capacity: 30VDC 50mA max. ON resistance 1Ω max. (2) Voltage pulse output Low level: 1.5VDC max., High level: 15VDC min, Output impedance: 2.2kΩ

・Pulse type: Either factored pulse or frequency pulse is selected.

(1) Factored pulse Pulse frequency: 0.01 to 10000Hz Pulse width: Pulse width changes as follows in accordance with the frequency of

In case Pulse frequency > 1Hz : Pulse ON/OFF duty ratio 50 to 50 In case Pulse frequency ≦ 1Hz : Pulse ON width fixed at 500ms (2) Frequency pulse Upper limit frequency: 10000Hz

・Signal form: Open collector output

Capacity: 30VDC 50mA max. Voltage at ON: 1.5VDC max. One among alarm/error detection, forward/backward flow direction, and upper/lower limit alarm is selected. (Default: No assignment)

・Alarm detecting function

Upper/lower limit flow detection, Empty pipe detection (in measured pipe), Abnormal measurement detection, Parameter setting abnormality detection, etc.

・Error detecting function

Transmitter abnormality diagnosis, probe abnormality diagnosis, memory abnormality diagnosis, etc.

・Communication signal form (physical layer) : RS-485 ・Baud rate : 9600, 19200, 38400bps ・Host for communication (PC communication software) : Communication software for Model EL2310 "LinkTop" is

・Communication interface : General-purpose interface for RS-485 communication (sold

5D min. upstream of meter. No limit for downstream of meter. 10D min. if devices to disturb flow pattern exist upstream of probe.

No principle restrictions for installation if the flow tube is filled. However, keep electrode axis on a level plane in a horizontal run; orient cable entry pointing downward in a vertical run.

Full scale flow velocity (FS)

15 to 150mm

3 to 10mm

±0.5% of reading (25 to 100% FS) ±0.125% of full scale (0 to 25% FS)

±1.0% of reading (20 to 100% FS) ±0.2% of full scale (0 to 20% FS)

1 to 10m/s 0.5 to 0.99m/s

±1.0% of reading (25 to 100% FS) ±0.25% of full scale (0 to 25% FS)

±2.0% of reading (20 to 100% FS) ±0.4% of full scale (0 to 20% FS)

Selected among these.

｝

SUS316L

｝

output pulse.

used (To be purchased separately) Operating system: Windows XP, Windows Vista, Windows 7

on market) shall be used.

Page 51

23. FLOW RANGE

20000

150

100

10000

5000

1000

500

100

0.5

0.1

0.25 0.5 1 2.5 5 10

Flow velocity (m/s)

Nominal size (mm)

Flow rate (L/min)

C−102-1-E

● Flow range and nominal size selection

Flow range can be selected between 0 to 0.5m/s and 0 to 10m/s, common to all nominal sizes. Determine the nominal size that best suits your application using the flow velocity, flow rate, and nominal size selector nomograph. We suggest flow velocity of 2.5m/s or less for flows with ab r asi v e slu r rie s an d 2.5m/ s or more f o r fl ows wi th suspended solids.

●Flow range

Nominal

Size

(mm)

(Max. flow velocity 0.5m/s)

Min. range

L/min m3/h L/min m3/h

3 0 to 0.22 0 to 0.013 0 to 4.24 0 to 0.25

6 0 to 0.85 0 to 0.5 0 to 17 0 to 1

10 0 to 2.4 0 to 0.14 0 to 47 0 to 2.8

15 0 to 5.3 0 to 0.32 0 to 106 0 to 6.3

25 0 to 15 0 to 0.9 0 to 295 0 to 17.7

40 0 to 38 0 to 2.3 0 to 754 0 to 45.2

Max. range

(Max. flow velocity 10m/s)

●

Flow velocity, flow rate, nominal size selector nomograph

50 0 to 59 0 to 3.5 0 to 1178 0 to 70.6

80 0 to 150 0 to 9 0 to 3015 0 to 181

100 0 to 236 0 to 14 0 to 4710 0 to 283

150 0 to 533 0 to 32 0 to 10667 0 to 640

NOTE: Be aware that accuracy varies with nominal size and

full-scale flow velocity.

Page 52

C−102-1-E

24. PRODUCT CODE EXPLANATION

Item

(1) (2) (3) (4)−(5) (6) (7) (8) (9)

Model

M G MAG-OVAL III ○ ○ ○

Body style

Configuration 1 − Integral with transmitter ○ ○ ○

Nominal size

Process connection (pressure rating)

Lining material T Fluorocarbon polymers ○ ○ ○

Electrode material

Power source

Transmitter type E − Always "E" (PA28) ○ ○ ○

Earth ground electrode material (identical with electrodes material)

Additional specifications (*2) 1 RS-485 communication ○ ○ ○

Version A ○ ○ ○

S Screw-in type ○ × ×

W Wafer type × ○ ○

Product Code

(10) (11) (12)−(13) (14) (15)

0 0 3 3mm

0 0 6 6mm ○ × ×

0 1 0 10mm ○ × ×

0 1 5 15mm

0 2 5 25mm

0 4 0 40mm × ○ ×

0 5 0 50mm × ○ ×

0 8 0 80mm × ○ ×

1 0 0 100mm × ○ ×

1 5 0 150mm × × ○

0 Always "0" for MGS type ○ × ×

1 JIS 10K × ○ ○

2 JIS 20K × ○ ○

3 JIS 30K × ○ ○

4 ASME 150, JPI 150 × ○ ○

5 ASME 300, JPI 300 × ○ ○

9 Other than above ○ ○ ○

1 SUS316L ○ ○ ○

5 Tantalum ○ ○ ○

7 Platinum ○ ○ ○

6 20 to 30VDC ○ ○ ○

7 85 to 264VAC 50Hz ○ ○ ○

8 85 to 264VAC 60Hz ○ ○ ○

1 SUS316L ○ ○ ○ (*1)

5 Tantalum ○ ○ ×

7 Platinum ○ ○ ×

Description

Screw connection G1

Screw conn. G1・1/4

Wafer type

Alloy C276 (HAST-C equiv.)

Combination

Screw-in

3 to 15 A

○ × ×

× ○ ×

○ ○ ○

○ ○ ×

Wafer

25 to 100A

Wafer

150A

NOTES: *1: For nominal size 150mm, earth ring (SUS316) is attached between the joint face and the flange

instead of earth electrode.

*2: Special product is also available with Bell 202 communication. If you prefer, contact OVAL.

Page 53

2″pipe

Adapter

Sec. A-A

181.6

A A

When installed on a horizontal pipe

C−102-1-E

145

130

253

283

240

Adapter

13356

Transmitter

Selector magnet

Transmitter

Selector magnet

240

145

Adapter

Electrodes

13356

Cable entries G 1/2

Electrodes

GND electrodes (2 places)

131

G male Screw

Flow dir. arrow Std.: Left → right

Probe

●Nom. sizes 25 to 150mm (water type)

GND terminal (M5)

Cable entries G 1/2

Flow dir. arrow Std.: Left → right

Probe

Nom. Size 150mm is provided with grounding rings (without GND electrodes)

● Nom. sizes 3 to 15mm (screw type)

GND electrodes

4-φ15

Screw-in flange

Protector (wetted parts)

With fluorocarbon polymers coating

143

φD2

● Screw-in flange for nom. sizes 3 to 15mm piping (option)

4-φ15

Screw-in flange

Protector (wetted parts)

141

φD2

Wetted parts: SUS316 Wetted parts: Coated with fluorocarbon polymers

Gasket

Fitting nut

Dimension with fittings installed

●

Pipe union for nom. sizes 3 to 15mm piping (std. accessory)



Wetted parts: SUS316 (std.)

25. OUTLINE DIMENSIONS

Nom. size

● Nominal sizes 3 to 6mm Transmitter 　 hold-down hardware

Screw conn.GApprox. Weight

3 G1 5.7

6 G1 5.7

10 G1 5.7

G1・1/4

5.8

All dimensions in millimeters

Nom. size mm L A B φD

25 100 293 258 70 5.8

40 100 309 266 80 6.5

50 100 323 273 100 7.1

80 150 353 288 130 9.8

100 150 374 303.5 161 12.4

150 210 441 332 218 21.9

Approx. Weight

Nom. size mm L1 L2 S G' R

3, 6

10 Rc 3/8

15 50

Nom. size mm D1 L2 Remarks

3, 6

15 70 95 Nom. Size 15 mm JIS 10K equivalent

65 90 Nom. Size 10mm JIS 10K equivalent

172 20

41 G1

G1・1/4

Rc 1/8

Rc 1/2

Page 54

C−102-1-E

All speciﬁcations are subject to change without notice for improvement.

2016.06 Revised

2014.04 Released C-102-1-E (2)