Oval SU1308 Instructions Manual

Ins. No.

PULSE DISTRIBUTOR

MODEL SU308

E-73-2-E

Every OVAL product is fabricated and shipped from our factory under stringent quality control
program. In order to maintain its design performance throughout the life of this distributor, this
manual o󱐯ers the operator the necessary installation, operation and maintenance information.
Be well familiar with these instructions before you place the distributor in service and keep
this manual for your quick reference. It is suggested that you also familiarize yourself with the
instruction manuals



E-73-2-E

2

CONTENTS

1.GENERAL .......................................................................................................................................................3

2. FEATURES ...................................................................................................................................................3

3. INSTALLATION ..........................................................................................................................................3

4. WIRING ..........................................................................................................................................................4

5. OVERALL BLOCK DIAGRAM ...............................................................................................................4

6. PREPARATION AND OPERATION ...................................................................................................5

7. QUICK TROUBLESHOOTING ..............................................................................................................5

8. INDIVIDUAL JUMPER SETTING .......................................................................................................6

8.1 ENCLOSURE REMOVAL ..................................................................................................................... 6

9. GENERAL SPECIFICATIONS ..............................................................................................................7

10. PRODUCT CODE EXPLANATION ..................................................................................................8

CONVENTIONS

Shown in this manual are the signal words NOTE, CAUTION and
WARNING, as described in the examples below:

NOTE: Notes are separated from the general text to bring

the user's attention to important information.

CAUTION: Caution statements signal the user about hazards

or unsafe practices which could result in minor
personal injury or product or property damage.

WARNING: Warning statements signal the user about hazards

or unsafe practices which could result in severe
personal injury or death.

E-73-2-E

1. GENERAL

This distributor accepts a train of incoming pulses from the owmeter of most kinds, or other sig­nal generating sources, shapes its wave form and, with desired pulse width, furnishes three sets
of mutually isolated outputs, isolated also from the input.

2. FEATURES

(1) Compactly built plug-in design. Easy to use and maintain.
(2) Provides a power supply to the pulse generator and preamplier (converter) of a variety of
owmeters.
(3) A free type power supply accepts 85-265VAC power source (or 20 to 30V DC in the DC version).

3. INSTALLATION

Installation Location

Select an installation location where

(1) Mechanical vibration, shock and corrosive　

gases least exist.

(2) Air is dry and temperature at room temperature

and stable.

➡

NOTE: Although the manufacturer guarantees
stated performance at ambient temperatures
from -10 to +50℃ , it is recommended that the

min.140

instrument be placed in service in a room
temperature environment.

(3) Potential sources of inductive interference,

such as electromagnetic contactors, are locat­ed su󱐰ciently away.

(4) A lightening arrestor is provided if incoming

Fig. 3.1 Socket Mounting Centers

signals are subject to potential influence of
lightening.

(5) In an application where two or more distributors are to be installed side by side, a su󱐰cient

working space is secured behind the instrument to facilitate wiring and maintenance (see Fig. 3.1).

(6) For use in an environment where noise level is high, we recommend to use commercially

available noise lters, isolation transformers, or similar devices.

Dimensions in millimeters

2-M4 Mounting Hole

min.

40 ± 0.240 ± 0.2

20

Fig. 3.2 Distributor Outline Dimensions

Lock Lever

Terminal Screw: 11-M3.5 × 7

Fig. 3.3 Socket Outline Dimensions

3

E-73-2-E



J2

J1 J4

J3

OPEN:0.3to12ms
CLOSE:5to250ms

1

2

P1

Pulsewidthadjust

(MM:Pulsewidthadjustcircuit)

1:1waveshape

circuit

MM

DCpowertopulsegenerator

DCpowertothelogics

2,3,4

11,1

FLOWIN

POWER

5,6

7, 8

9,10

OUT1

OUT2

OUT3

TP2

TP1

1

2

OPEN:One-shot
CLOSE:Uppercutoff

Generatorselect

circuit

Powersupply

circuit

4. WIRING

(1) Separate eld wiring from other power lines

or power circuits to minimize the possibility

of inductive interference.
(2) Terminal arrangement is shown in Fig. 4.1.
(3) M3.5 ×7 screws are used for terminals.
　　Ensure good electrical connections.
(4) Upon completion of wiring connections,

install the distributor body into the socket.

Then engage the locking levers on the

socket assembly with the distributor body.
(5) For incoming signal cables from the owme-

ter or other signal sources, cables recom-

mended for the instrument of interest must

be used. Transmission length also depends

on the specication of that instrument.

For ot her s i gnal c ables, e l ectros t ati-

c a l l y - shielded, poly ethylene-insulated,

vinyl-sheathed control cables (CEVS 1.25

to 2.00mm2, 2- or 3-conductor), or equiv-

alent, must be used. With a conductor area

2 mm2, the maximum transmission length is

one kilometer.

　Wiring Connections

● FLOW IN terminals

2-wire sig. 3-wire sig.

● OUT1, OUT2, OUT3
Polarity observation

is not required.

Fig. 4.1 Terminal Identication

CAUTION

Make electrical connections upon conrmation of validity of owmeter (pulse gen­erator) and receiving instrument combination by their model No., serial No., etc.

5. OVERALL BLOCK DIAGRAM

● Description of Individual Circuits (by block)

● Pulse generator select circuit　
　　　………Selects the acceptable signal type of pulse generator and shapes the waveform.

● Power supply circuit……………Furnishes power of required voltage to individual circuits.

● Pulse width adjust circuit ……Selects the “ON” duration of output pulse signals OUT 1, 2, and 3.

●

1:1 waveshaping circuit………Adjusts the ON/OFF ratio of output signals OUT 1, 2, and 3 to 1:1.

Fig. 5.1

E-73-2-E

PowerIndicatorLED(red)

PL1

P1

0VA

0VB

CLK

TP2

TP1

J1

1

2

J5

1J42

J2

J3

Selectorboard
45590 1□0□

Powersupplyboard
45500 4□01

Distributorboard
45500 4603

◆InternalComponentLocations

6. PREPARATION AND OPERATION

(1) Ensure that the pulse distributor and related equipment are correctly installed and wired with

no place left unnished.

WARNING

Make sure to see that the power terminals are connected to a power source of the
rated voltage. Applying a power of incorrect voltage could ruin your instrument.

(2) Supply power to this instrument and make sure to see that the power indicator (red LED)

comes on.

(3) Initiate operation by allowing the uid to run.

7. QUICK TROUBLESHOOTING

● If the trouble is suspected to be internal to the distributor, seek our service.

Symptom Check Possible Causes

Power indicator lamp
(LED) fails to come on.

No pulse output. 1. Input signal line correctly wired?

1. I nspe ct the p ower sup p ly b oard .
Is p owe r s our ce type (AC /DC ) i n
co nformit y with the p ow er supply
board?

2. Make sure of power source voltage. Is
an 85 to 246VDC (50/60Hz) power or
20 to 30V dc power Impressed across
terminals 11 (+) and 1 ( − )?

2. Input signal coming in?

3. Pulse generator valid on the pulse
generator select board ?

1. Power supply board is improper.

2. Line voltage is improper.

3. A fault In the internal power
board.

1. Input wiring is incorrect.

2. Pulse generator is at fault.

3. Pulse generator select board is
incorrect.

4. Power supply boa rd or p ulse
g e n e r a t o r s e l e c t b o a r d or
distributor board in the internal
assembly is at fault.

Fig. 7.1

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

8. INDIVIDUAL JUMPER SETTING

● Input Setting: Establish input pulse mode.

Jumper Input pulse mode (pulse generator)

J1 Voltage pulse (Code 3 only): 2 Others: 1

● Output Setting: Establish output mode.

Output mode

Jumper

One-shot output Upper cuto󱐯 output

J2 OPEN CLOSE OPEN
J4 ２ ２ １
J5 OPEN CLOSE

● Output Pulse Width Setting and Adjustment:

Establish parameters such as “ON” width or cuto󱐯 width of output pulse signal.

Jumper Pulse width adjust range (adjustable with P1) Location

Duty sync with input

1:1 output

J3 OPEN：0.3 to 12ms　CLOSE：5.0 to 250ms TP1and 0VB

(If output mode is “Duty sync with Input 1:1”, it adjustment is correct at 1 ms. )

8.1 Enclosure Removal

(1) Unlatch the locks of socke t ass embly ,

separate the distributor body and remove
the enclosure (see Fig. 8.1).

(2) Referring to the pictorial drawing showing

component locations (Fig. 7.1) on page 5,
make adjustments required.

Enclosure

Fig. 8.1

Lock Lever

Surface Mount
Socket

9. GENERAL SPECIFICATIONS

Item Description

Pulse Type

8V 2-wire current pulse OPTO 01, 02 8.5VDC

Contact-closure pulse PG20 13.5VDC

2-wire, 12VDC 3-wire
voltage pulse

Input signal

24VDC 2-wire current pulse
(4/20mADC)

12VDC 2-wire current

Open collector pulse

32VDC 3-wire open
collector pulse

Frequency response 500Hz Max. (50Hz max. with PG20)

Companion Pulse

Generator

PG30, NPG60A（F） 13.5VDC

PA14, 15, 25, NPG60A（E） 24.0VDC

pulse PG30S 13.5VDC

FLOWPET-EG, NPG60A (E3),
MOS-FET

PA11 32.0VDC

Power to Pulse

Generator

13.5VDC

E-73-2-E

Current
capacity
40mA max.
approx.
(Shortcircuit
protection
circuit
provided)

Signal Open MOS-FET, 3 outputs

Capacity

Output pulse

Output signal

width

Power source 85 to 264VAC 50/60Hz or 20 to 30VDC

Power consumption 8VA approx.

Ambient temperature － 10 to ＋ 50℃

Insulation resistance

Withstanding voltage

Mounting Plug-in type

Enclosure Plastic molding, black

Weight 0.5 kilogram approx.

Accessory furnished 11-pin surface mount socket, quantity one

230VAC/340VDC 0.2A
Resistance during ON: 16 Ω max. Leakage current during OFF: 1 μ A max.

One-shot 1ms, 50ms
Upper cuto󱐯 in width of pulses sync with input 10ms, 100ms
Duty sync with input 1:1
(Corresponds to output frequency range 4 to 200Hz. Below 4Hz,
100ms one-shot)

Across power terminals tied together and output terminals tied together:
10M Ω min. (500VDC insulation resistance tester)

Across power terminals tied together and output terminals tied together:
1500VAC for one minute. With DC power: 1000VAC for one minute

7

E-73-2-E

Allspecificationsaresubjecttochangewithoutnoticeforimprovement.

OVAL Corporation

Head Office: 10-8, Kamiochiai 3-chome, Shinjuku-ku, Tokyo, Japan

Phone. [phone] Fax. [phone]

2011.01 Revised

2009.12 Revised

2006.03 Revised△

2004.08 Released
E-713-2-E

（3）

10. PRODUCT CODE EXPLANATION

Item

① ② ③ ④ ⑤ ⑥ － ⑦ ⑧ ⑨ ⑩ ⑪ ⑫

Model Ｓ Ｕ １ ３ ０ ８ － Pulse Distributor

Power

Flow Input

Output Pulse Width

Product Code

６ 20 to 30VDC

７ 85 to 264VAC 50/60Hz

１ 8VDC 2-wire current pulse

２ Contact-closure pulse

３

４ 24VDC 2-wire current pulse (4/20mADC)

５ 12VDC 2-wire current pulse

６ Open collector pulse

８ 32VDC 3-wire open collector pulse

９ Other than above

１ Pulse width 1ms

２ Pulse width 50ms

３

４

５

９ Other than above

2-wire voltage pulse and 12VDC 3-wire voltage
pulse

Sync with input
Upper cuto󱐯 in width of pulses 10ms

Sync with input
Upper cuto󱐯 in width of pulses 100ms

Sync with input
Duty 1:1 output (Response 200Hz max.)

Description

０００ Always“000”