Installing Your Membrane Switch – All The Key Steps

Membrane switches are touch-sensitive devices. They’re manufactured by printing, clipping, and laminating extremely thin-film plastic materials. That’s why even applying fingertip force on the front surfaces of these switches triggers momentary electrical contacts. A membrane switch manufacturer is essential in various industries. Most medical equipment, electrical appliances, communication tools, and microprocessor-based control systems feature this switch technology. It’s the most reliable front panel solution in the market. These switches offer amazing flexibility. They’re sealed, so cleaning them is also easy. However, you need to install these switches correctly to get the best results. Here are all the key steps for installing membrane switches.

Preparing for Installation

After bringing your membrane switch home, review its bottom side. It should have an adhesive liner. Cut a small portion of the adhesive liner. Turn the switch over and locate the exit slot. You’ll find this slot at the tail end of the switch unit. This slot will be used to mount the switch. Pass your cable through the tail exit slot. Make sure the flex cable passes completely through this slot. Now, locate the back-support indentation on your appliance. Position your switch on this indentation. Use the exposed region of the adhesive liner to stick the switch to your unit’s surface.

Installing the Switch

After sticking the membrane switch to your unit’s surface, hold it at an angle of 45-degrees. While holding the switch in this position, peel off the remaining portion of the adhesive liner. You may need a soft roller for this next step. Gently laminate the switch with the soft roller. Apply very little pressure when rolling the soft roller across the switch’s top surface. Start this step from the side where the adhesive liner is already removed. Roll gently and gradually reduce the angle at which the switch is positioned on the unit.

Finishing Up

After some minutes of gradually lowering the angle of the switch, the lamination process will be complete. Avoid pressing the circuits or domes on the switch during this process. There’s a risk of air bubbles forming in-between the different switch layers. To avoid this, use the soft roller at the lowest possible angles. This will help avoid air bubbles. Now, start bending and pressing your circuit (very gently) - the lamination is done. However, make sure no damage is caused to the switches in the first few minutes of use. Be extra careful to ensure the buttons or the metal domes on the switch don’t invert or bend. Or else the switch may not function properly.

Final Take

Once you’ve completed the installation, avoid lifting the switch at all costs. Even slightly repositioning the switch could invert the domes or the buttons. The installation process is critical to ensuring you make the most out of your purchase. Every membrane switch manufacturer recommends it. Follow every step to ensure you don’t accidentally damage your switch during installation. Use this step-to-step installation guide if you’re installing your membrane switches on your own. If an engineer or electrician is taking care of your installation process – make sure they exercise utmost care. For more information visit here: CSI Keyboards, Inc.

Unique Features of Different Types of Domes Used In A Tactile Membrane Keypad

 A membrane keypad may be made up of tactile and non-tactile switches. The tactile switches are fitted with metal domes and provide the users with tactile feedback after pressing a key. The non-tactile switches may not provide the users with tactile feedback. However, the entire keypad or each non-tactile membrane key is backlit using LED, LGF, EL or a combination of fiber-optic films and LED. The backlit keys become illuminated after being pressed. Thus, tactile and non-tactile membrane keypads can both provide the users with feedback.

It is possible to add the metal domes of varying sizes and shapes when manufacturing a tactile membrane keypad. The metal domes are fitted to the underside of the graphic interface. They are open contacts that complete the circuit once a membrane key has been pressed. The metal domes can provide the users with consistent tactile response alongside enabling the manufacturing companies to create durable switches that can be used in any type of environment. The metal domes are made of stainless steel. The performance of a tactile keypad depends largely upon the venting of metal domes. In tactile keypads, the air moves in and out from under a metal dome and the phenomenon is known as venting.

A tactile membrane keypad has to be adequately vented in order to perform properly. The absence of venting or inadequate venting may have adverse effects on the function and feel of a tactile switch. The metal domes fitted to a membrane keypad may be four-legged, round, triangular, oval or square in shape. Their size varies depending upon the size of the user-interface. A manufacturing company may customize the shape of metal domes based upon the specifications of different clients alongside customizing their size. The four-legged metal domes are also known as cross metal domes. They are integrated to silver-flex membrane switches, single-sided or double-sided PCB switches and FPC circuits.

The four-legged metal domes last longer than the triangular domes and produce better ‘snap feel’ than a circular or oblong dome. The lifecycle of this type of metal dome is usually higher than one-million. The circuit boards of some of the membrane keypads are made up of two or more layers. The circular/round metal domes are integrated into this type of circuit board. It is also possible to fit this type of metal dome to a precision switch. The circular metal domes are smaller than the four-legged domes and are ideal for a smaller user-interface.

The triangular metal domes are used on a single-sided or double-sided PCB, silver-flex membrane keypad or FPC circuits. The triangular domes can be used with small user-interfaces, such as user-interface of small handheld devices. They can generate a click feel once a switch has been pressed. The triangular metal domes have two legs and can handle up to 6,000 gram-force. For more information visit here: CSI Keyboards, Inc.

Top Membrane Switch Manufacturer - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

Switch Membrane - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

Membrane Keypad - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

Membrane Switch Manufacturer - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/

Membrane Switch - CSI Keyboards, Inc. (978) 532-8181

 

CSI Keyboards, Inc.
56 Pulaski Street
Peabody, MA 01960
(978) 532-8181
http://csikeyboards.com/membrane-switches/