Yueng shing Products
Categories
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●Three-piece full-bore threaded ball valve AV-232T / Socket-welded ball valve AV-232S
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●Three-piece full-bore high-platform butt-weld ball valve AV-233B
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●Three-piece full-bore high-platform threaded ball valve AV-233T / Socket-welded ball valve AV-233S
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●Three-Port (L-Port & T-Port) High-Platform Threaded Ball Valve AV-32T
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●Four-way (L-port, T-port, and X-port) threaded ball valve AV-44T
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●Two-piece German-standard high-platform flanged ball valve AV-223F
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●Three-Port (L-Port & T-Port) High-Platform Flanged Ball Valve AV-32F
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●Electrical control components
1. Introduction
Many thanks for purchasing our ITS300 or ITS500 series Limit Switch Box!
For safe and proper operation, please read this manual carefully before using it and save it for reference.
- The Installation & Operation Manual should be provided to the end-user.
- The Installation & Operation Manual is subject to change due to quality improvements, without notice.
- The Installation & Operation Manual should not be duplicated or reproduced for any purpose without written approval from I-Tork Controls Ltd.
2. Manufacturer Warranty
- For safety, it is imperative to follow instructions in the manual. It is not the manufacturer’s liability for any damages which are caused by the users’ negligence.
- It is not the manufacturer’s liability for any damages for accidents which are caused by any alteration or modification of the product and parts. If alteration or modification is necessary, please contact the manufacturer in advance.
- Manufacturer warrants the product from the date of original retail purchase of the product for One year, except as otherwise stated.
- Manufacturer warranty will not cover the products if the products have been subjected to abuse, accident, alteration, modification, tampering, negligence, misuse, faulty installation, lack of reasonable care, repair or service in any way that is not contemplated in the documentation for the product, or if the model or serial number has been altered, tampered with, defaced or removed; damages that occurs in shipment, due to act of God, failure due to power surge, and cosmetic damage. Improper or incorrectly performed maintenance or report voids this Limited Warranty.
- For detailed warranty information, please contact the corresponding local I-Tork distributors or main office in Korea.
Safety Precautions
- ITS300/500 is designed for use in explosive gas atmosphere. The user must follow explosion proof procedures and safety precautions.
- For unused power connectors, please make sure to use blind plugs which are explosion proof certified.(Ex d II C )
- If cover must be opened for any reason, the power must be turned off and wait for at least 30 seconds.
- When applying power, please make sure to use flame proof proven sealing fitting and/or cable glands.(Ex d II C) (It is the user’s responsibility to ensure appropriate Explosion proof fittings/cable glands are used)
3. PRODUCTION DESCRIPTION
- ITS300/500 position monitoring switch is used for the valve and actuators which rotate 90 degree’s quarter turn. The first function of ITS300/500 is to provide visual indication of current position of valve and actuator. Dome indicator unit shows current position by color indication. If there is full red color indication, current position of valve or actuator is fully closed position, and yellow is on fully open position. Different Color indication combination can be provided to suit customer’s specific requirement .
- Secondly, ITS300/500 provides electrical signal at the fully open or closed position by activating mechanical switches (SPDT and DPDT), or Proximity sensors and other magnetic sensors which independently makes function. Switches vary in a wide range and construction to meet customer’s requirement.
- ITS300/500 has the function of a direction free installation on different valves, and generally no need to adjust position of the internal cams to activate the switches as long as 0 at close and 90 at open because of adjustable cam. If it is required, customer can adjust it easily with finger or hand watching its movement. Red is for close position and Yellow is for open position.
- Enclosure is Certified to IEC 60079-0 and IEC 60079-1 and so can be used in Zone 1, 2, gas group IIA , IIB and IIC without any problem.
4. Label Description
Model: Indicate the model number
Enclosure: Indicate the explosion proof grade
Switch: Indicate the switch or sensor type
Rating: Indicate the allowable input rating
Lot no.: According to purchase order
Connection: Indicate the cable entry size
5. Suffix Symbols
6. Specification
7. Parts and Assembly
8. Dimensions
9. INSTALLATION
Saftey Warning
- All input and supply pressure to valve, actuator, and other related devices must be turned off when installing.
- Please check the switch type and rating on the label on ITS300/500 enclosure, and be careful not to electrically exceed the switch rating.
- All installation and maintenance should be done by authorized personnel only.
- ITS300/500 is designed for use in explosive gas atmosphere. The end-user must follow the explosion proof procedures and safety precautions.
- Please make sure there is no explosive gas or material present before the installation.
Caution : In order to avoid unexpected accident, serious injury and property damage, make sure to cut all
power supply to the actuator and valve before inspection, maintenance and repair , Ambient temperature :
-20o C ~+60o C
Direction and positioning of installation: No limitation excluding hazardous area.
ITS300/500 Installation
Proper size of Mounting bracket is required for mounting ITS300/500 on valve or actuator. Standard Mounting bracket is supplied together with ITS, but in case of requirement by customer for special application, please refer to the drawing inside of the body. The most important thing in mounting is to align the shaft of valve (or actuator) with ITS’ shaft. ITS’s shaft is done according to NAMUR standard, so that it may suitable for various applications without further modification.
10. Connection – Power
Safety Warning
- Please make sure there is no explosive gas or material present before the installation.
- While the cover is open, the power should be turned off and wait for at least 30 seconds.
- For unused power connectors, please make sure to use the blind plugs which are explosion proof certified.
- When connecting power, please ensure the use of flameproof proven sealing fitting and/or cable glands.
- Please make sure the polarities are correct.
- Don’t use too much force when pulling the cable, and make sure the cable doesn’t peel off.
- Electrostatic Hazard: Clean Cover indicator only with a damp cloth. Do not clean with solvents.
- Ground Connection: Ground Connection is provided on the external surface. This Connection should be used to connect the enclosure metal work to the Equi-potential Bonding System/Earth. This is in addition to any Protective Earth Terminals provided inside the enclosure.
It must be sized in accordance with local rules for electrical installations and not be smaller than 4㎟. - Electrical wiring must be done according to the specification of international standard or local specific regulation.
ITS300/500 provides 2 - PF3/4” (Other thread sizes are optional) conduits for the wiring and by using approved explosion proof couplings, ensures tight sealing and explosion proof function.
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