[Code of Federal Regulations]
[Title 16, Volume 2]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 16CFR1211.13]

[Page 335-336]
 
                     TITLE 16--COMMERCIAL PRACTICES
 
             CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION
 
PART 1211_SAFETY STANDARD FOR AUTOMATIC RESIDENTIAL GARAGE DOOR 
OPERATORS--Table of Contents
 
                         Subpart A_The Standard
 
Sec.  1211.13  Inherent force activated secondary door sensors.

    (a) Normal operation test. (1) A force activated door sensor of a 
door system installed according to the installation instructions shall 
actuate when the door applies a 15 pound (66.7 N) or less force in the 
down or closing direction and when the door applies a 25 pound (111.2 N) 
or less force in the up or opening direction. For a force activated door 
sensor intended to be used in an operator intended for use only on a 
sectional door, the force is to be applied by the door against the 
longitudinal edge of a 1\7/8\ (47.6 mm) diameter cylinder placed across 
the door so that the axis is perpendicular to the plane of the door. See 
Figure 6 of this part. The weight of the door is to be equal to the

[[Page 336]]

maximum weight rating of the operator.
    (2) The test described in paragraph (a)(1) of this section is to be 
repeated and measurements made at various representative points across 
the width and height of the door. For this test, a door sensor system 
and associated components shall withstand a total of 9 cycles of 
mechanical operation without failure with the force applied as follows:
    (i) At the center at points one, three, and five feet from the 
floor,
    (ii) Within 1 foot of the end of the door, at points one, three, and 
five feet from the floor,
    (iii) Within 1 foot of the other end of the door at points one, 
three, and five feet from the floor.
    (3) The cycles are not required to be consecutive. Continuous 
operation of the motor without cooling is not required.
    (b) Adjustment of door weight. (1) With the door at the point and at 
the weight determined by the tests of paragraphs (a)(2) and (b)(2) of 
this section to be the most severe, the door sensor and associated 
components shall withstand 50 cycles of operation without failure.
    (2) At the point determined by the test in paragraphs (a)(1) and 
(a)(2) of this section to be the most severe, weight is to be added to 
the door in 5.0 pound (2.26 Kg) increments and the test repeated until a 
total of 15.0 pounds (66.72 N) has been added to the door. Before 
performing each test cycle, the door is to be cycled 2 times to update 
the profile. Similarly, starting from normal weight plus 15.0 pounds, 
the test is to be repeated by subtracting weight in 5.0 pound increments 
until a total of 15.0 pounds has been subtracted from the door.

[65 FR 70659, Nov. 27, 2000]