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air shower controller

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Kemas & Pengiriman	germany worldwide quality
Negara Asal	Jerman

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Keterangan

SMART MATIC®
Air Showers are self-contained air chambers installed at the entrance to cleanrooms in order to minimise the amount of particulate contaminants entering the cleanroom. Personnel move through the air shower while particulate contaminants are washed off with high velocity HEPA-filtered air jets. The high air velocity of 20-22m/ s ensures efficient scrubbing action necessary to remove particulate matter. Contaminated air is then taken in through the base of the unit, filtered, and recirculated into the chamber.

FEATURES

EAS features a programmable microprocessor control, giving users a great extent of self-customization and autonomy. Because all processes are controlled by the microprocessor, there is a high level of precision with regards to the functions of the EAS.

Unlike conventional air showers which come with a pre-programmed mode of operation, EAS allows users a choice of all three modes just by the touch of a button.

THREE MODES OF OPERATION :

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One-Way : Door at cleanroom interior is locked at rest, door at cleanroom exterior is unlocked. Person enters and door at cleanroom exterior locks. Air shower cycle starts. At end of cycle door at cleanroom exterior stays locked. Door at cleanroom interior unlocks. Person exits via the door at cleanroom interior. When door at cleanroom interior closes, it locks. Door at cleanroom exterior unlocks.
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Two-Way One-Way : Only one door at a time can be opened. Both doors are unlocked at rest. Person enters door at cleanroom exterior. Air shower cycle starts. At end of cycle person exits via door at cleanroom interior. Alternatively, person can enter via door at cleanroom interior, proceed through unit and exit via door at cleanroom exterior without initiating the blowers.
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Two-Way : Cycle runs in both directions. Only one door at a time can be opened. Person can go in either direction and the air shower will cycle.

CONSTRUCTION FEATURES

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The body of the EAS is constructed from rigid and rust-proof electro-galvanised steel sheets. These sheets have an abrasion-resistant oven-baked powder-coated finish.
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Adjustable stainless steel nozzles are durable and electrolytic zinc-coating on the electro-galvanized steel provides and additional barrier of protection against corrosion and rust as compared to convential uncoated cold-rolled steels.
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Heavy-duty, durable aluminium framed door assemblies with clear glass windows. The doors are fitted with indicator lamps. The flooring is constructed using abrasian-resistant stainless steel which facilitates cleaning.
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Industrial-grade electromagnetic locks have no moving parts and will not fail.
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Emergency stop button mounted on both sides of the shower allows all doors to be unlocked instantly.
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Convenient mains breaker switch mounted inside the work zone allows rapid shutdown and all doors to be unlocked instantly.
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Indicator lights mounted on both sides of the air shower unit exterior regulate traffic flow in and out of the cleanroom.
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Electronically ballasted lighting reduces energy costs compared to conventional electromagnetic ballasts. Diffusers ensure even and uniform lighting throughout the chamber.
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Permanently lubricated direct drive centrifugal blowers are used in conjunction with stainless steel air nozzles. Together they provide high velocity air jets for an efficient scrubbing cleaning action.
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Resettable circuit breaker for both the blower circuit and electronics boards for increased electrical safety.
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> All electrical components are UL listed / recognised.

FILTRATION AGENTS

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Contaminated air is filtered through secondary filters and HEPA filters featuring 99.99% efficiency in the removal of particles to 0.3 microns in size.
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A disposable pre-filter with 85% arrestance extends the life of the main filter.

OPERATING FEATURES

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Depending on the mode of operation currently in use, indicator lamps at the doors will be lit red or green according to accessibility based on the stage of shower. A red light will bar personnel from opening the door and entering / exiting while a green light gives clearance to enter/ exit.
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Besides choosing the mode of operation, users also have the autonomy to set the pre-purge time, shower time and reset duration.
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To enhance cleanroom integrity, there is a pre-purge period set to activate the blowers when the air shower is just turned on. Users can choose to bypass the pre-purge by setting the duration to 0. The default duration is 10s while the maximum duration is 3 min.
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Interlocking system prevents both doors from being opened at the same time, thus preserving cleanroom integrity.
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The duration of shower is programmable from a minimum of 5s up to a maximum of 3 min. The default duration is 12s.
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If the air chamber is idle it will reset to standby mode. During standby mode, blowers run at a lower speed at minimal energy while keeping the chamber clean. Ceiling lights are turned off if energy saving mode is chosen. The time that is taken to switch to standby mode is the reset duration. Users can choose from a duration of 5s up to 1 min. The default period is set to 10s.
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The EAS is also orientation independent. Users are able to change the location of gray and clean sides without reprogramming the air shower or rewiring the doors.
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The reset default option allows users to reset the shower period, pre-purge period and reset duration to default values. It also activates the energy saving mode. But for safety reasons, the mode of operation and the orientation of the air chamber are unchanged in the event of a reset or power failure.
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The above mentioned options and customization can be conveniently deployed by accessing the menu. To prevent unauthorised access, an Administrator Password and PIN can be configured to prevent unauthorised modification to operation parameters.
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To enhance safety, EAS has a function to detect illegal operation. Clear error messages will be displayed on a LCD screen should safety or cleanliness of the air chamber be violated. The LCD screen will also display a countdown of cleaning / shower period.
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One key attraction of the EAS lies in the wide range of options it provides to its users as well as its decreased dependency on service engineers. The options are easy to customise with the user friendly interactive interface. Personnel using the air shower will also find the instructive message display and indicator lamps at doors easy to understand.

MICROPROCESSOR CONTROL FEATURES

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Easy-to-clean soft touch control pad mounted centrally inside air shower chamber ( no relays or switches which may corrode) .
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Backlit LCD display reports air shower cycle progress and operational status.
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Clearly visible LEDs on the touch control and display pad indicate door interlock and shower sequence
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24 hour clock display on the LCD. Users are also able to customise the time setting according to their geographical locations.
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The air shower sequence may be adjusted via the soft touch control pad. Any of the 3 standard Esco air shower sequences may be chosen ( refer to catalog for description of 3 standard shower sequences) . Shower duration is also easily adjusted via the control keypad using the intuitive menu interface.
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ADMIN PIN feature restricts access and ensures unauthorised personnel are not able to change any operating parameters on the microprocessor control menu
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Watchdog timer resets microprocessor in case of any internal failure, thus restoring the air shower to a safe state
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All doors are unlocked automatically in case of a power failure for safety reasons
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Special mode in which the fan may be operated continuously for service and air velocity checks
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Optional energy saving mode may be enabled via the keypad to automatically turn off the lights in the air shower when no personnel are inside
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Auto reset unlocks doors in case personnel open the air shower door but do not actually enter thus preventing accidental lock-outs
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Customised sequence programming is available on request from WITH HIGH QUALITY AND COMPETIVE PRICE CALL NOW PT WEST STAR 08121831578 UNTUK DISKON SPESIALNYA DAN DGN PRODUK BERKUALITAS DUNIA