Shinko LV-300 Instruction Manual

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INSTRUCTION MANUAL

LEVEL SWITCH LV-300

No.LV31JE4 2015.01 To prevent accidents arising from the misuse of this instrument, please ensure the operator receives this manual.

Safety Precautions (Be sure to read these precautions before using our products.)

The safety precautions are classified into categories: “Warning” and “Caution”. Depending on circumstances, procedures indicated by Caution may be linked to serious results, so be sure to follow the directions for usage.

Warning

• To prevent an electric shock or fire, only Shinko or other qualified service personnel may

handle the inner assembly.

• To prevent an electric shock, fire or damage to the instrument, parts replacement may only be undertaken by Shinko or other qualified service personnel.

Safety precautions

• To ensure safe and correct use, thoroughly read and understand this manual before using this

instrument.

• This instrument is intended to be used for industrial machinery, machine tools and measuring

equipment. Verify correct usage after purpose-of-use consultation with our agency or main office. (Never use this instrument for medical purposes with which human lives are involved.)

• External protection devices such as overcurrent protection fuse, etc. must be installed, as

malfunction of this product could result in serious damage to the system. Also proper periodic maintenance is required.

• This instrument must be used under the conditions and environment described in this manual.

ShinkoTechnos Co., Ltd. does not accept liability for any injury, loss of life or damage occurring due to the instrument being used under conditions not otherwise stated in this manual.

Caution with respect to Export Trade Control Ordinance

To avoid this instrument from being used as a component in, or as being utilized in the manufacture of weapons of mass destruction (i.e. military applications, military equipment, etc.), please investigate the end users and the final use of this instrument. In the case of resale, ensure that this instrument is not illegally exported.

Installation precautions

Caution

This instrument is intended to be used under the following environmental conditions (IEC61010-1): Overvoltage category , Pollution degree 2 Ensure the mounting location corresponds to the following conditions:

• A minimum of dust, and an absence of corrosive gases

• No flammable, explosive gases

• No mechanical vibrations or shocks

• No exposure to direct sunlight, an ambient temperature of 0 to 55 (32 to 131 )

that does not change rapidly, and no icing

• An ambient non-condensing humidity of 35 to 85%RH

• No large capacity electromagnetic switches or cables through which large current is flowing.

• No water, oil or chemicals or where the vapors of these substances can come into

direct contact with the unit

Caution

Procedures which may lead to dangerous conditions and cause death or serious injury, if not carried out properly.

Procedures which may lead to dangerous conditions and cause

superficial to medium injury or physical damage or may degrade or damage the product, if not carried out properly.

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Wiring precautions

Caution

• This instrument has no built-in power switch, circuit breaker and fuse. It is necessary to install a power switch, circuit breaker and fuse near the instrument.

(Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)

Operation and maintenance precautions

Caution

• Do not touch live terminals. This may cause electric shock or problems in operation.

• Turn the power supply to the instrument OFF before retightening the terminal or cleaning. Working on or touching the terminal with the power switched ON may result in severe injury or death due to electric shock.

• Use a soft, dry cloth when cleaning the instrument.

(Alcohol based substances may tarnish or deface the unit.)

• Do not strike or scratch it with a hard object or put pressure on it.

1. Name of sections

(1): Cover (2): Case (3): Main unit mounting nut (4): Wing shaft fixing nut (5): Detector wing (6): Cabtyre cord (7): Solderless terminal (ring type)

(Fig. 1.1)

(2)

(1)

(5)

(3)

(4)

(6)

(7)

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2. Mounting to hopper

2.1 Site selection and precautions

Ensure the mounting location corresponds to the following conditions, and follow precautions below. (1) A minimum of dust, and an absence of corrosive gases

(2) Few mechanical vibrations or shocks (3) No exposure to direct sunlight, an ambient temperature of 0 to 55 (32 to 131 )

that does not change rapidly, and no icing (4) Mount the instrument at the position where granule level actually changes. (5) If the granule load is large, mount an adequate guard plate. (6) Avoid mounting the instrument under the falling point of granules as well as near the

outlet. (7) Mount the unit using the Main unit mounting nut.

When it is difficult to set or remove the wing in a hopper, use a flange (sold separately). (8) Do not push and insert wing shaft too hard.

Insert it up to the point carefully, and then revolve it manually.

2.2 Mounting examples [Good example]

• Horizontal mounting • Vertical mounting

(Fig.2.2-1) (Fig.2.2-2)

Empty room

Outlet

Inlet

Area where material tends to accumulate

Outlet

Inlet

Level changing

area

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• For large loading

(Mount the guard plate when the granule loading is large.)

(Fig.2.2-3)

[Bad example]

• Under the inlet • Near the outlet

(Fig.2.2-4) (Fig.2.2-5)

Outlet

Inlet

Area where material tends to accumulate

Empty room

Guard

plate

Empty room

Outlet

Inlet

Area where material tends to accumulate

Outlet

Inlet

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Nut and flange mounting

[Nut Mounting] [Flange Mounting]

(Fig.2.2-6) (Fig.2.2-7)

When using the LV-300 with a flange, make a hole on the hopper which enables the wing to enter.

2.3 Mounting of wing shaft

(Fig.2.3-1) (Fig.2.3-2) (Fig.2.3-3)

Insert the wing shaft up to the point where it can be inserted fully to the end position. When it is difficult to insert the wing shaft to the end, revolve the wing shaft manually clockwise or counterclockwise. See (Fig.2.3-2). Tighten the wing shaft with the fixing nut. See (Fig.2.3-3).

Hopper

Main unit mounting nut

Flange

Hopper

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Notice

Tighten the Wing shaft fixing nut and Main unit mounting nut with the specified torque as shown below, otherwise the screws will be damaged.

(Table 2.3-1)

Appropriate torque Maximum torque Wing shaft fixing nut 15 N•m Within 30 N•m Main unit mounting nut 20 N•m Within 30 N•m

2.4 External dimensions (Scale: mm)

Detector length (L) Mounting direction

85mm 100mm 150mm 200mm Vertical mounting 250mm Vertical mounting

(Fig 2.4-1) Please specify the detector length when

ordering.

2.5 Hopper cutout (Scale: mm)

(Fig 2.5-1)

Detector length (L)

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ＡＣ１２３

3. Terminal arrangement

Warning

Turn the power supply to the instrument OFF before wiring and checking. Working on or touching the terminal with the power switched ON may result in severe injury or death due to electric shock.

Caution

This instrument has no built-in power switch and fuse. It is recommended that power switch or fuse be set at the external circuit near this instrument.

Solderless terminal for the cabtyre cord

Use a solderless terminal (ring type) in which

an M4 screw fits as shown in (Fig. 3-1).

4. Operation and action

4.1 Operation

When mounting to the hopper and wiring are completed, check the action as follows. (1) Turn the power supply to this instrument ON. (2) Detector wing starts to revolve with no load.

Between terminals

and2: Conductive

Between terminals

and3: Open

(3) When the load is added to the detector wing, the wing stops rotating.

Between terminals

and2: Open

Between terminals

and3: Conductive

Terminal code Lead wire color

A White C Orange 1 Black 2 Brown 3 Green

8mm

4.3mm

(Fig. 3-1)

Power supply Load

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SHINKO TECHNOS CO., LTD.

OVERSEAS DIVISION

Head Office: URL: E-mail:

2-5-1, Senbahigashi, Minoo, Osaka, Japan http://www.shinko-technos.co.jp

overseas@shinko-technos.co.jp

Tel : Fax:

+81-72-727-6100

+81-72-727-7006

4.2 Action explanation

When granule resistance is applied to the detector wing, the wing stops because the granule resistance keeps it from revolving.

Micro switch between terminals

and

for internal load is conducted by the bar fixed on the motor. When the granule resistive load is given, power supply for the motor is disconnected because the micro-switch for the motor operates. When the granule level lowers, the detector wing is exposed, granule resistance does not work and the detector wing starts to revolve with the motor.

Micro switch between terminals

and

for internal load is conducted at this time.

5. Specifications

Name : Level switch Model name : LV-300 Torque : Detecting torque: 0.049N•m (0.5kg•cm) or more (fixed) Number of revolution : 1min-1(60Hz) Supply voltage : 100V, 110V, 115V, 200V, 220/230V, 240V AC (Must be specified)

50/60Hz

Allowablevoltage fluctuation range : 15% of the Supply voltage

Contact capacity : 3A 250V AC (resistive load) Ambient temperature : 0 to 55 Detector length : 85, 100, 150, 200, 250mm (Must be specified)

Mounting : Nut screwing

(Mounting part thickness: Maximum 7mm)

Material

Case, Cover : Aluminum die-cast Detector shaft : Stainless steel 8.0mm

Detector wing : Stainless steel t1.5mm Lead wire : 5-core cabtyre cord, Length: 2m Weight (Including cabtyre cord 2m)

Detector

length

85mm 100mm 150mm 200mm 250mm

Weight

Approx. 645g Approx. 650g Approx. 670g Approx. 690g Approx. 710g

Color

Case, Cover : 7.5BG4/2.5 (Munsell value)

Drip-proof/Dust-proof structure : IP66 (excluding parts from the Main unit mounting nut to

detector wing)