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Sigma Enterprises, Noida is a renowned dealer and distributor of ATEX Reed Sensor in Noida , Elevator Limit Switch in Noida , Level Sensor in Noida , Water Flow Switch in Noida , Metal Keyboard with Trackball, Panel Mount Switches in Noida, Greater Noida, Ghaziabad.

ATEX Reed Sensor

ATEX approved reed sensors are tested to carry out switching functions in potentially explosive atmospheres such that they will not become an ignition point when subjected to short circuits or adjacent component failures. They must also switch to a defined state when subjected to overload conditions. Reed sensor products meeting these requirements are generally referred to as intrinsically safe.

Features
  • ATEX approved - Intended for use in potentially explosive atmosphere
  • Hermetically sealed Contacts for Long Life
  • Available in SPST-NO
    • Magnetically Operated Sensor
    • Available in SPST NO Version.
    • Choice of cable length and Termination is possible
    • Magnet is available sealed with housing

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Elevator Limit Switch

Limit switches as a special type of position switches are available to suit different functions. Here the emergency limit switch has of course the highest significance, because in every elevator there must be used one or two emergency limit switches. For the actuation of the limit switches there are sliding cams and throw-over cams available as accessories.

The small shaft limit switch TSW is a safety switch with forced actuation. It is used as limit switch in the highest or lowest landing of lifts. On other moving parts predetermined positions may be registered as well. The switch may be actuated to the left or right direction and is equipped with a spring return to the centre position. The limit switch is actuated by fixed operating ramps.

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Level Sensor

Liquid level sensors and switches provide high-reliability monitoring and detection of a wide range of fluid media. Requirements can range anywhere from the sensing of cooking oil, to hydraulic fluids, to diesel fuel tanks (gas level indicator), to water and wastewater, to biohazards, to even deionised or potable water.

To effectively address such a wide variety of measurement challenges, We offers a broad range of contact, non-contact, and non-intrusive liquid level sensors and switches. These are available in multiple technology types, including magnetic reed switch-based floats, solid-state electro-optical, conductivity, capacitive, ultrasonic ect. Multiple liquid level sensing technologies may also be incorporated within a single application. Sometimes, more than one “best fit” solution may also exist, with the ultimate decision simply a matter of customer preference.

Application of these sensors for level measurement of engine oil, brake / power steering fluid, cooling water, windshield cleaning liquid, etc. Industrial applications include liquid level sensing in water treatment tanks, transport and storage tanks, in the petrochemical industry for liquids such as petrol, etc. Liquid level measurement is important in household applications for devices such as automated coffee machines, water dispensers, juice squeezers, water evaporators, steamers, fridges and freezers, boilers, heating systems, dishwashers, washing machines, steam irons, etc.

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Water Flow Switch

The paddle type SPDT WFS series are designed to provide excellent performance where accuracy, reliability, and rugged construction are required used in liquid flow lines carrying water or any fluid neither harmful to brass and phosphor bronze nor classified as hazardous fluids.

The WFS series are recommended for liquid pressure and temperature as mentioned below and must not be used on lines carrying liquids below 0 degree C. These series may be used on liquids with high salt or chlorine content but is not for use in hazardous atmospheres. They may be also used outdoors but must be protected from weather or splashing water. All series WFS flow switches are designed for use only as operating controls. Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of user to add safety devices that protect against, or supervisory systems that warn of control failure.

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Metal Keyboard with Trackball

This Compact Format IP65 Static Vandal Proof Stainless Steel industrial Keyboard with full keyboard functionalities, with 38.0mm stainless steel trackball module for fast and accurate cursor position with extremely smooth operation without any noise, function keys F1, F2..F10, F11, F12 are on the top line for easy operation, numeric keypad (optional PINPAD with Encryption Electronics Controller supporting DES/TDES), industrial metal dome PCB with gold-on-gold key switch technology with short stroke 0.45mm with excellent tactile feeling for stable and accurate data input, stainless steel top plate with threaded bolts for top panel mounting solution. P68 dynamic trackball module with direct drain pipe is optional, no rust risk and anti-salt spray corrosion.

Stainless steel fascia and key-tops guard wilful destruction, vandal-proof, against corrosion, weather-proof especially under extreme climatic conditions, water proof/dirt proof, operation under hostile environments. Waterproof execution according to IP65 protection from top panel, top stainless steel plate with flat keyboard surface for easy cleaning & threaded bolts for easy tightly mounting to enclosure or panel. An excellent tactile feel with short stroke switches and allow users to achieve stable and accurate data input, with firm tactile perception for comfortable operation

APPLICATION: This Keyboard is mainly targeted for use for unsupervised or semi-supervised positions of varied access applications, internet terminals and information kiosks at universities, shopping malls, hotels, banks, airports, railway-stations and other public areas, ticket vending machines, gas stations, cash machines (ATMs/CDM), Internet public phones etc.

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Panel Mount Switches

Cherry Panel Mount Pushbutton E/F switches are double-pole switches with a long-life coil spring,          snap-action mechanism.
Widely used in application of Panel Doors , Vending Machines , Oven Doors ect.

  • Single-pole panel mount pushbutton switch
  • Momentary, Push-Pull (reset) and Cheat Interlock versions
  • Long-life coil spring, snap-action mechanism
  • Agency approved extended-life versions available
  • VDE approval available on select models (F Series)
  • Snap-in panel mounting

Electrical Ratings

 


 

Switch Series

UL 1054 Rating

 

E65

16amp, 125/250VAC; 1/3HP, 125/250VAC

 

E/F68

0.1amp, 125VAC

 

E/F69

10amp, 125/250VAC; 1/3HP, 125/250VAC

  • Small Server Rack
  • Ticketing Window

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