Performance Specifications - 3M DBI Sala Rollgliss R550 User Instructions

Performance Specifications:

Minimum Descent Load:
Maximum Allowed Descent Height:
Nominal Descent speed:
Maximum Consecutive Descents:
Maximum Descent Energy Rating:
Table 1 – Specifications
130 lb. (59 kg)
1 Person: 1,640 ft. (500 m) when system length permits
2 Persons: 574 ft. (175 m) when system length permits
1 Person: 2.0 ft/s - 3.0 ft/s (0.6 m/s - 0.9 m/s)
2 Persons: 2.0 ft/s - 4.0 ft/s (0.6 m/s - 1.2 m/s)
The Maximum Number of Consecutive Descents is equal to the Total
Cumulative Descent Distance divided by the Descent Height. Total
Cumulative Descent Distances for various weight limitations are as
follows:
2 Persons up to 620 lb. (282 kg)
1 Person up to 310 lb. (140 kg)
1 Person up to 220 lb. (100 kg)
1 Person up to 165 lb. (75 kg)
The Descent Energy Rating of your R550 Rescue & Escape Device is a
calculable measure of wear on your device. Factors influencing Descent
Energy Rating include user weight, descent height, the number
of previous descents, and the number of simultaneous users. The
Maximum Descent Energy Rating is the maximum allowable Descent
Energy Rating of your R550 Rescue & Escape Device. If your device
exceeds this number, it must be removed from service immediately
and managed according to the specifics of Section 4.1. The Maximum
Descent Energy Rating of your R550 Rescue & Escape Device is
determined by the number of users and the applicable standard for
use:
standard Number of
simultaneous Users
ANSI Z359.4 One or two users
CSA Z259.3-12 One user
(Type 1, Class A)
CSA Z259.3-12 Two users
(Type 1, Class C)
;
All users must weigh no more than 140 kg (310 lb.) each.
At any time, the Descent Energy Rating of your R550 Device must not
exceed this value. Descent Energy Rating can be calculated with the
following equation:
E = W x H x N
Where "E" is the Descent Energy Rating in foot-pounds (ft-lb), "W"
is the User Weight in pounds (lb.), "H" is the Descent Height in feet
(ft.), and "N" is the total number of descents your R550 Device has
experienced.
If, at any time, your R550 Device has a Descent Energy Rating (E)
equal to or greater than the Maximum Descent Energy Rating, it must
be removed from service immediately and marked "DO NOT USE".
For metric units, the following equation should be used instead:
E = W x H x N x G
Where "E" is the Descent Energy Rating in Newton-meters (N-m),
"W" is the User Weight in kilograms (kg), "H" is the Descent Height in
meters (m), "N" is the total number of descents your R550 Device has
experienced, and "G" is the acceleration due to gravity (9.81 m/s
9
1,148 ft. (350 m)
18,044 ft. (5,500 m)
25,443 ft. (7,755 m)
36,089 ft. (11,000 m)
Maximum Descent
Energy Rating
300,000 ft-lb
(406,750 joules)
5,531,700 ft-lb
(7,500,000 joules)
368,700 ft-lb
(500,000 joules)
).
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