From my experience, an increasing number of doors are suffering from sagging, settling, poor construction methods, HVAC systems and just plain wear. Also, let’s not forget about east facing heat warpage. And that is sometimes the good news.
Many of these structural problems are continuing and just about any fix can unfix itself over time. Problem doors require creative thinking and solutions to ensure they are able to close and latch. The real problem with doors that do not close and latch easily is they are prime targets for being left open, thereby eliminating any form of access control.
However, in addition to the hammer and adjustment tools, using an electric strike to control access can resolve these problems, providing the building owner is willing to make reasonable repairs, and have periodic inspections and maintenance.
The HES 7000 Series is special among electric strikes by having horizontal adjustment and preload handling. Horizontal adjustment allows the electric strike mechanism to move out or in to accommodate the position of the latch. Horizontal adjustment includes movement of the lip to increase the adjustment and installing an optional shim onto the keeper to reduce the adjustment. The 7000 Series preload allows a Fail Secure configured electric strike to release even though latch pressure is being exerted against the keeper. The modular design 7000 Series provides 1/4” horizontal adjustment, with the ability to open electrically under 15 pounds of preload.
This stainless steel construction electric strike keeper is positioned along the centerline of the electric strike body. The 7000 Series operates with cylindrical locks outfitted with up to a 5/8” throw latch and rim exit devices equipped with up to a ¾” throw pivoting style latch.
For cylindrical locks, the 7000 Series electric strike uses the 791 and 792 faceplates meeting ANSI/BHMA A156.31, Grade 1 requirements. The HES 791 faceplate conforms to the ANSI Strike Plate prep. The 792 faceplate is 7-15/16” tall with four mounting holes. For rim and some surface-mounted exit devices equipped with up to a ¾” Pullman style latch, the 7000 Series electric strikes equipped with the 783S, 786S or 789S faceplates meet ANSI/BHMA A156.31, Grade 2 requirements. The electric strike body depth is 1-11/16”.
The 7000 Series is UL 1034, burglary-resistant listed electric strike. The non-handed HES 7000 Series electric strikes have an electrical draw of .45A @ 12VDC and .25A @ 24VDC. The 7000 Series electric strike ships as either 12 or 24VDC and is not field selectable. Both configurations operate with continuous duty solenoids. The operation is field selectable Fail Safe or Fail Secure.
Integrated Prox Products
HES Integrated Prox Products combine an HES electric strike with latchbolt monitor capability with an HID® Prox reader or iClass reader in one package. Twelve electric strike models are available with the integrated Prox HID 125KHz or iClass (smartcard) 13.56MHz card readers. The smartcard reader supports HID iClass credentials, plus CSN read only credentials including MIFARE®, DESFire®, and Sony FeliCa™. Both of the readers interface with Weigand output compatible access control systems. The Prox reader products require 10 to 14VDC and the iClass reader products require 12 to 24VDC. The readers can be located up to 500 feet from the controller.
SMART Pac III
To extend operational life and the warranty, HES offers the SMART Pac III™ in-line power controller. The SMART Pac III provides operational protection for the electric strike and the HES electronics between the power supply and the electric strike. Since most electric strikes are equipped with a solenoid to release or secure the keeper, they can require a significant amount of inrush current to get the solenoid armature and locking/release mechanism moving. Once the armature has moved, less current is required to keep it in the locked/released position.