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Emergency Service

For fast emergency service when locked out of a car or home, mobile locksmiths can often get the job done within the shortest time possible. For example, rather of making a car, getting found by a relative or friend, going home and risk getting the vehicle harmed or stolen, a specialist locksmith in Arthurs Seat can come to the rescue. These experienced locksmiths can offer emergency services to home and companies, saving both money and time.

Keypad Lock

Emergency Service

From re-keying ignition locks to helping house or business people enter into a locked building, a mobile locksmith is frequently the solution that is best. Why suffer the stress of leaving a motor car unattended or a home or business unsecured?

Instead of waiting days or much longer for a locksmith to arrive — or possibly even having to go to a store front side — customers can have the locksmith come to them. A mobile locksmith service can change or upgrade locks and restore peace of mind and home security if home keys have been stolen and the homeowner worries about possible break-ins or other dangers.

Keypad Door Lock

The homeowner doesn’t need certainly to leave home first. Any possible burglars is going to be foiled inside their attempts to use the key that is stolen open a door. Just What other types of services can a mobile locksmith offer? If price is an element, free quotes is provided before arriving to handle a car, home or business emergency. Even though there is not an emergency, a locksmith can assess home, business or car safety and also make guidelines about how to ensure the maximum safety.

 

 

A Brief History of the Locksmith

Electromagnetic LocksElectromagnetic locks are widely used in commercial and industrial applications. The lock is usually mounted on the header above the door and the armature is usually mounted on the door (see drawing below). Different arrangements can be made for inswing or outswing doors, and different holding forces, monitoring switches, and other variations and options are available. In this article I will discuss only the basics. As with any locking system, use of electromagnetic locks may be restricted by local authorities such as your local building inspector and/or fire marshall. It is wise to check with these authorities before installing an electromagnetic lock. System OverviewTo install the most basic electromagnetic locking system on an out-swinging hollow metal commercial door and frame you need the following: The electromagnetic lockA way inA way outA power supply The electromagnetic lock is an appliance. It unlocks when you shut off the power. Therefore the means of entry and egress will be swtiches of some form or other. Means of entry could be: A key switchAn access control device like a card reader or keypad A remote as for a garage door openerYour choices for means of egress are limited by national, state and local life safety code. They could be: A mechanical push bar with a mechanical switch insideA pushbutton with pneumatic time delay clearly marked "Push to Exit" right next to the doorAn exit sensor with redundant pushbutton Your local Authority Having Jurisdiction (AHJ) may require that your power supply be connected to the building fire alarm so that in the event of an alarm, the panel can unlock the electromagnet. In any case you need a power supply with sufficient capacity to power your electromagnet. System ExamplesA simple electromagnetic locking system using products by Schlage Electronics might include: 1 each M490 electromagnetic lock 1 each PS902 power supply 1 each 653-05 key switch 1 each 621RD EX DA exit pushbutton A simple electromagnetic locking system by Securitron might consist of: 1 each M62 electromagnetic lock 1 each BPS-24-1 power supply 1 each DK-26SS keypad 1 each XMS exit sensor 1 each EEB2 redundant exit pushbutton Wiring the Electromagnetic Locking SystemIn the simple diagram above, you can see that the electricity travels in an unbroken loop. It starts at the "+" (positive) terminal of the power supply, travels through the exit and entry switches, into the positive terminal of the magnetic lock, and out through the negative (-) terminal of the mag back in through the negative terminal of the power supply. Because the loop in unbroken, we know the magnet is locked. If the loop is broken anywhere along the line, the magnet will be unlocked. When either of the switches is activated it breaks the loop and deprives the magnet of power, leaving it unlocked. NOTE: ALWAYS turn the magnet on and off via the positive terminal. Using the negative terminal could cause residual magnetism, a situation where the magnet does not immediately release when powered down. The exit switch could be a palm button, touch bar or motion sensor. The entry switch could be a key switch, keypad or other access control device. You could also use a wireless receiver and transmitter to control break or make the loop. Controlling an Electromagnetic Lock WirelesslyIn the above illustration I have substituted a wireless receiver and transmitter for the exit and entry switches in the previous drawing. Following the loop that powers the lock, electricity travels from the positive terminal of the power supply to the Common (C) terminal on the wireless receiver, then out of the receiver through the Normally Closed (NC) terminal to the positive terminal of the magnet. ("Normally Closed" means that the switch is in the closed position unless it is told to open by the wireless transmitter.) The electricity completes its loop by exiting the magnet by the negative terminal (-) and making its way back to the power supply. Notice that an additional pair of wires is needed to power the wireless receiver. When the wireless transmitter is activated the state of the relay on the wireless receiver is changed - that is, the normally closed terminal is changed to open. NOTE: ALWAYS turn the magnet on and off via the positive terminal. Using the negative terminal could cause residual magnetism, a situation where the magnet does not immediately release when powered down. Asap Locksmith

Locksmiths Tools of the Trade - In the Field - Safes

Electromagnetic LocksElectromagnetic locks are widely used in commercial and industrial applications. The lock is usually mounted on the header above the door and the armature is usually mounted on the door (see drawing below). Different arrangements can be made for inswing or outswing doors, and different holding forces, monitoring switches, and other variations and options are available. In this article I will discuss only the basics. As with any locking system, use of electromagnetic locks may be restricted by local authorities such as your local building inspector and/or fire marshall. It is wise to check with these authorities before installing an electromagnetic lock. System OverviewTo install the most basic electromagnetic locking system on an out-swinging hollow metal commercial door and frame you need the following: The electromagnetic lockA way inA way outA power supply The electromagnetic lock is an appliance. It unlocks when you shut off the power. Therefore the means of entry and egress will be swtiches of some form or other. Means of entry could be: A key switchAn access control device like a card reader or keypad A remote as for a garage door openerYour choices for means of egress are limited by national, state and local life safety code. They could be: A mechanical push bar with a mechanical switch insideA pushbutton with pneumatic time delay clearly marked "Push to Exit" right next to the doorAn exit sensor with redundant pushbutton Your local Authority Having Jurisdiction (AHJ) may require that your power supply be connected to the building fire alarm so that in the event of an alarm, the panel can unlock the electromagnet. In any case you need a power supply with sufficient capacity to power your electromagnet. System ExamplesA simple electromagnetic locking system using products by Schlage Electronics might include: 1 each M490 electromagnetic lock 1 each PS902 power supply 1 each 653-05 key switch 1 each 621RD EX DA exit pushbutton A simple electromagnetic locking system by Securitron might consist of: 1 each M62 electromagnetic lock 1 each BPS-24-1 power supply 1 each DK-26SS keypad 1 each XMS exit sensor 1 each EEB2 redundant exit pushbutton Wiring the Electromagnetic Locking SystemIn the simple diagram above, you can see that the electricity travels in an unbroken loop. It starts at the "+" (positive) terminal of the power supply, travels through the exit and entry switches, into the positive terminal of the magnetic lock, and out through the negative (-) terminal of the mag back in through the negative terminal of the power supply. Because the loop in unbroken, we know the magnet is locked. If the loop is broken anywhere along the line, the magnet will be unlocked. When either of the switches is activated it breaks the loop and deprives the magnet of power, leaving it unlocked. NOTE: ALWAYS turn the magnet on and off via the positive terminal. Using the negative terminal could cause residual magnetism, a situation where the magnet does not immediately release when powered down. The exit switch could be a palm button, touch bar or motion sensor. The entry switch could be a key switch, keypad or other access control device. You could also use a wireless receiver and transmitter to control break or make the loop. Controlling an Electromagnetic Lock WirelesslyIn the above illustration I have substituted a wireless receiver and transmitter for the exit and entry switches in the previous drawing. Following the loop that powers the lock, electricity travels from the positive terminal of the power supply to the Common (C) terminal on the wireless receiver, then out of the receiver through the Normally Closed (NC) terminal to the positive terminal of the magnet. ("Normally Closed" means that the switch is in the closed position unless it is told to open by the wireless transmitter.) The electricity completes its loop by exiting the magnet by the negative terminal (-) and making its way back to the power supply. Notice that an additional pair of wires is needed to power the wireless receiver. When the wireless transmitter is activated the state of the relay on the wireless receiver is changed - that is, the normally closed terminal is changed to open. NOTE: ALWAYS turn the magnet on and off via the positive terminal. Using the negative terminal could cause residual magnetism, a situation where the magnet does not immediately release when powered down.

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