Comments for Door Hardware Genius

Comment on Hinge Basics ‐ Architectural and Residential Hinges by WIDE THROW HINGE | Materials Find

WIDE THROW HINGE | Materials Find — Mon, 08 Aug 2011 12:16:15 +0000

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Comment on Hinge Basics ‐ Architectural and Residential Hinges by How to Choose a Door Closer » Door Hardware Genius

How to Choose a Door Closer » Door Hardware Genius — Fri, 08 Jul 2011 10:30:25 +0000

[...] the door closer closes the door by exerting force on a point about eight or ten inches from the hinge side of the door. To see what this means, go to a door with no door closer. Open it. Now put [...]

Comment on Exit Devices with Electric Latch Retraction by What’s Hot in Door Hardware » Door Hardware Genius

What’s Hot in Door Hardware » Door Hardware Genius — Sat, 18 Jun 2011 22:14:54 +0000

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Comment on About by weasel

weasel — Sat, 04 Jun 2011 16:32:44 +0000

Hi John, I don’t think there is a device specifically designed to monitor use of a key in an electrified mortise lock as an after market product. Some manufacturers offer mortise locks with a latch bolt monitor switch, but this will monitor the latch whether it is retracted from the inside or the outside. In a mortise lock with two switches – latch bolt monitor and request to exit – one could theoretically use the request to exit switch to shunt or nullify the signal from the latch bolt monitor switch, thus limiting the scope of its monitoring to retraction of the latch from outside.

Locknetics, now Schlage Electronics, used to offer an ATK (audit trail key) feature on their locks that allowed direct monitoring of key usage. Medeco offers “smart” keys that can have heads equipped with proximity chips that could be read and tracked by a proximity reader at the door. Also a retrofit company like Architectural Control Systems in St. Louis may offer some options as regards monitoring key usage.

I hope this is somewhat helpful.

Comment on About by weasel

weasel — Fri, 03 Jun 2011 02:48:21 +0000

Thanks very much! You encourage me to continue writing.

Comment on About by John

John — Thu, 02 Jun 2011 14:29:30 +0000

Hey Tom! I love your website and as a young engineer its helping me understand the ins and outs of the installations.

I was hoping you could help me to understand if an electrified lockset can be wired to a door contact. Can just the key being turned and unlocking the door also notify the door contact of an authorized ingress? And if the key is not turned and the door opened, or propped open for X amount of time, signal a breach?

Thanks and keep the articles coming!

Comment on Door Propped Alarm by weasel

weasel — Sun, 22 May 2011 22:34:20 +0000

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Comment on Door Propped Alarm by cybermagnetik

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Comment on Door Propped Alarm by Olevia Macaulay

Olevia Macaulay — Mon, 16 May 2011 16:25:36 +0000

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