Door Closers Access Control Tutorial

By: Brian Rhodes, Published on May 02, 2019

Door Closers have an important job: automatically shut doors when they are opened, because an open door cannot control access.

In this note, we review Door Closers, examine how they are selected, and how to avoid misusing them:

  • Why closers are important for access control
  • Why using closers as barricade locks is often illegal
  • Applications other than security where closers help
  • What normal closer operation should look like
  • The 3 standard movement phases and configuring locks for them
  • How to properly size closers
  • Typical closer pricing

Finally, the 6 question quiz at the end will test your knowledge.

**** ******* **** ** important ***: ************* **** doors **** **** *** opened, ******* ** **** door ****** ******* ******.

** **** ****, ** review **** *******, ******* how **** *** ********, and *** ** ***** misusing ****:

  • *** ******* *** ********* for ****** *******
  • *** ***** ******* ** barricade ***** ** ***** illegal
  • ************ ***** **** ******** where ******* ****
  • **** ****** ****** ********* should **** ****
  • *** * ******** ******** phases *** *********** ***** for ****
  • *** ** ******** **** closers
  • ******* ****** *******

*******, *** * ******** quiz ** *** *** will **** **** *********.

[***************]

Crucial ******** ****

******* ******* * *********** access *******: ***** **** be ****** ****** **** can ** ******.

****** ****** *** ** the ***** ** ******* every **** ****** ****, there ** ** ********* it ** ****** ****** these ******* *** ****. Since ***** ****** ******* requires ******* ************ ****** out ** ***** **** do *** ******, ** open **** ****** ****** no ******** ** *** people ** ****** ******.

******: ******* *** ******** to **** ***** ****** every **** ** ********* can ************* **** *****, mitigating *** **** ** an **** **** ******** anyone **** ****** **** an ****.

Illegal *** ** ********* *****

* ****** ***** ** classroom ********* ***** ******** for ***** * ***** sleeve **** **** **** the ******'* **** **** closed, ********** ******* ******* of *** **** **** the **** ** *****. These ******* **** ** installed **** *** **** closed, *** **** **** protect ******** ** ******** from ******* ** ******** when ******:

*******, ***** ******* *** often ******* ******* **** risk ******** ********* ****** barricaded ***** **** **** might ** *******. **** local *********** **** ******* codes **** ******* ********* egress ** * ******, instinctual ******.

*** ***** **** *** most ** ***** ***** regulations ** ************* ******** Code (****) ****.*.* **** states:

"****** ** ************ ********* by **** ******* ****** doors ***** ** ******* openable **** *** ****** side ******* *** *** of * *** ** special ********* ** ******."

****** ****: *** ***** of ******** **** ******** must **** ********* ******, and ****** ********* ***** are ***** *** ********** lives ** **** ** keeping **** ****. ** examine ****** ********* ***** further *********** ****** **** ***********.

Other ******* *** ********** **** *******

*******, ******** ** *** the **** ******* ******* provide. **** *** ***** designed **** * ******** for ***** *******, *********:

  • **** **********: ******* *** ******** balanced *** ********** ************ cost ******** ******* ***** sealed. ** ***** ************* like************* ****** **** ***** heated/cooled ** ** ******** warehouse *****, **** ******* are **** ** **** the ***** ********.
  • ***** *********: ********, * ****** door ****** **** ***** isolation. ******* **** **** quiet ***** ***** ** keeping ***** ****.
  • **** **********: **** ** **** emphasis ** '******** ********' of ***** ** *******************, ******* **************** ** * **** factor ** ******** *** firewall ** ****'****. *** ******** **** Door ******* ************* **** open*************** ** *********, ********* triggered ** *** **** alarm.

Hydraulic ******* *** **** *******

**** ****** ******* *** a '*********' (*** ******) box **** *** ******* mounted ** *** ******* side ** *** ****. In ***** ** ******* occupant ******, ******* **** 'stages' ***** ********* ****** and ******* ***** ** the **** ** ****.

** *** *** *****, a ********* ****** ******** the ***** ********* ****** of ******* ** *** fluid ********:

*** ********** ** ***** positions *** ***** *** explained ** *** ********* section.

Standard ******** *********

*** ***** ******* ****** are ***** ** *** top-view **** ***** *****:

  1. **** *****:**** ***** ** ******* to ** '****-******' **** allows *** **** ** open *****, **** ****** 90 *******, ** **** wide ***** *** **** through. *** **** ***** phase ********* ****** *** closer ** * ********** disadvantage *** ******** **** directional ***** ** * leverage ************, ******* ******** the **** ** *** closer.
  2. *****:**** ** *** '*******' phase ** *** ******, that ****** *** **** closed. * ******* ** closers******** ****, ****** ********* like**** ******* / ***** Direction*** **** ***** **** account.
  3. *****:*** ****, **** ****** stage *** ** *** most *********: '********' ***** the ***** ****** **** and ***** *** ******** much **** ****** *** rigid ** *** ************ door ***** *** ***************. ******* ** * door ******** **** *** bouncing *** *** *****, the ***** ***** ** a ********** *****.

**** ** *** '*****' phase, ***** ****** ** adjusted ** *********** *** delayed ****** ** ****** times ** ******, *** while *** ******* ********* of * ***** *** take ** *******, *** 'latch' ***** ***** *** account *** * - 7 ******* ******* **** moving * *** ******.

Timing ********** ******** *** ****** *******

*********** *** ****** *******, modern ********** ******* ********* have ******** ****** **** tweak ****** ** **** travel **** **** *** tightened ** ********. *** exact ******** *** ****** of ********** ****** ****, but **** ********* *** found ** *** ********* of *** **** *** can ** ******** **** small ******** *** **** or*************:

* ****** ** ******** adjusted **** ***** ** no ******** *** ******** positive ******** ** *** companion *****. ******* ******** ten ** ******* ******* adjusting * ****** ***** three ** **** ***** of *** ** ******, but ** *** ** critical *** ******* *** door ** **** **** electronic ****** ******* ********.

Other ******** ****** *****

***** ********* ******* *** the **** ******, ***** are **** ********* ***** used ** * ****** of ************:

  • *****************: **** ******** **** Door ******* (******* **** keep ***** ****), *******-********** devices *** ***** **** that ****************** **** **** ******* in ** *********** ****.
  • **** *********/*********: ***** ************* ****** and ********** ******, ******* that *** ** ****** inside *****, ******, ** hinges/pivots *** ***** ****. Unlike ***** *****, ***** are ***** ******* *** installed ** *** ******* and *** *** ** field *********** ***************************.
  • **********: ** ********* ** contaminate-sensitive ************, ********* ******* may *** ** *********. While ******** ** ********** openings, ***-******* ******* (***** with ************ ********** *****) are **** ** ********* the **** ** ***-***** units.

Sizes ***** ** ****** **** ****** *** **** *****

**** ****** **** **** not ******* ********** *** door *******, ******* ********* worn ** ****** **** may ** ****** ******. Additionally, ********** *** ******* on ***** ********** ***** to ** **** **** can ******* ** ****** in ********** *****.

*** ****** ********** ******** replacement ******** *****, ****** the ******* **** ** closer *** *** **** the **** ********* ** is ******** ******* *** right *********** *** ******** new *******. *** ***** basic ****** **** ******* are:

*** ***** **** ** use ** ********* ******* by**** ******** ** *** ********* appearance ** *** *******. In *******, ******* ** Top **** ***** *** used ****** *** *** their **** ******* *** considered *********. ** **** case, ******** *** ***** are **** ** **** as *** **** ***** is *** **** **".

*** ******** ** *** closer ** ********** ** standard '****', **** ****** 'spring ****' ******* **** applying ** ***-******, ********** hydraulic *****. ** *******, the ******* *** '****' number, *** ******** *** physically ****** *** **** is **** ******* **** the *******:

***** ***** ********* *** their ***** *** ******, Parallel *** ******* *** often *** ************ **** to ***** ***** ***** than **", *** ***** action ***** **** **** mechanical ******** **** ** used.

Closer ****

** **** *****, *******/*** Jamb ********** ********* ******* should ** ********* *** access *******, *** ***** types *** *** ********, too *********** ********, ** too ********** ** ** retrofitted ** ******** *****.

*** **** *** **** be ********* ** *** most ********, *** ********** them *** ** **** with ***** *****, *** units *** ** ******* for *** ******** *******, and *** **** ****** door ****** ***** #* or #* **** *****, pricing **** **** $*** - $*** **** ******** distributors.

*** **** *****, ******* sized #* - #*, the **** ** ~$***. For **** **** ** atypically ***** ********, ***** can ** ****** ~$*,*** or **** *** ********* training ** ******* *** adjust *** ** ********.

**** **********, **** ******, hinge ****, *** ******** uses *** **** *** play * *** **** in ********* *** ***** unit. **** ****** ************* provide * ************* ***** to **** **** ** on *** *********** ****.

Quiz ********

**** *** *** ************ ******* *** ****** Control *******.

[******: **** ******** *** originally ********* ** **** and ************* ******* ** 2019]

Comments (1)

Avatar

Aaron Verzotti

05/03/19 04:29pm

***** ****

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Genetec Synergis Cloud Link - Complex, Costly and Confusing on Jun 18, 2019
Genetec's Synergis Cloud Link is complex, costly and confusing compared to competitor access control architectures. Inside this note, we examine...
Biometrics Usage Statistics 2019 on Jun 17, 2019
While face and fingerprint recognition are used regularly for smartphones, it is not as common in physical security. In this note, we examine...
Farpointe Data Conekt Mobile Access Reader Tested on Jun 13, 2019
California based Farpointe Data has been a significant OEM supplier of conventional access readers for years to companies including DMP, RS2, DSX,...
Dumber Techs, Bad Box Movers, Says Australian Distributor on Jun 10, 2019
Techs today are "dumber" than they used to be, despite better education and training and that makes a typical day "frustrating" for one...
OSDP Access Control Guide on Jun 04, 2019
Access control readers and controllers need to communicate. While Wiegand has been the de facto standard for decades, OSDP aims to solve major...
Vidsys New President Interviewed on May 31, 2019
A decade ago, PSIM was hot with projections then of a billion dollar market by now. This has not come close to happening. However, Vidsys, one of...
Access Control Job Walk Guide on May 22, 2019
Significant money can be saved and problems avoided with an access control job walk if you know what to look for and what to ask. By inviting...
Facial Recognition Systems Fail Simple Liveness Detection Test on May 17, 2019
Facial recognition is being widely promoted as a solution to physical access control but we were able to simply spoof 3 systems because they had no...
Maglock Selection Guide on May 16, 2019
One of the most misunderstood yet valuable pieces of electrified hardware is the maglock. Few locks are stronger, but myths and confusion surround...
Milestone XProtect 2019 R1 Tested on May 15, 2019
For the past few years, Milestone has released quarterly software updates XProtect VMS platform. What is new and how much impact do the updates...

Most Recent Industry Reports

Risk of Amazon Alexa Guard: No Battery Or Cell Backup on Jun 20, 2019
Amazon positions its Alexa Guard Service as a "smart home security system" and says it can help you "keep your home safe". However, the...
Exacq Remote Cloud Access Tested on Jun 20, 2019
Remote cloud access has been missing from most VMSes (including Exacq and Milestone). Now, Exacq, after releasing Cloud Drive Storage earlier in...
Briefcam Buys Frost Award* on Jun 20, 2019
Frost 'awards' are well-known and widely disrespected. Now Briefcam is touting their win. The way it has worked for many years is that Frost...
IFSEC 2019 Show Report on Jun 19, 2019
The UK's largest trade show, IFSEC, is underway and IPVM has been examining what is new and happening at the show. Inside, we cover: Huawei...
Repositionable Multi-Imager Camera Shootout - Avigilon, Axis, Dahua, Hanwha, Hikvision, Panasonic, Vivotek on Jun 19, 2019
Repositionable multi-imager cameras are one of the fastest growing segments in video surveillance, with a slew of new offerings being recently...
Genetec Synergis Cloud Link - Complex, Costly and Confusing on Jun 18, 2019
Genetec's Synergis Cloud Link is complex, costly and confusing compared to competitor access control architectures. Inside this note, we examine...
Startup Vaion Launching End-to-End AI Solution Backed with $20 Million Funding on Jun 17, 2019
An EU / USA video surveillance startup, Vaion, founded by ex-Cisco Senior Directors is launching an end-to-end VSaaS platform with $20 million in...
Biometrics Usage Statistics 2019 on Jun 17, 2019
While face and fingerprint recognition are used regularly for smartphones, it is not as common in physical security. In this note, we examine...
The Scheme Hikvision and China Importers Use To Avoid Tariffs on Jun 17, 2019
Hikvision and numerous China importers are avoiding 25% tariffs by including an SD card slot in their IP cameras to claim they are 'digital still...
Sighthound Transforms Into Enterprise AI Provider Profile on Jun 14, 2019
Sighthound is now rapidly expanding its R&D team, building an enterprise AI service. This may come as a surprise given their origins 6 years...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact