Sierra Safety Technology, Inc.
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radiant energy sources within the detector’s Field-of-View. Because
environments and conditions can impact the performance of the
detector, a trained technician or qualified P.E. should be consulted
before deciding on the location of the devices.
The RED1 may be interfaced to a computer using an interface box. If
there is a question with possible radiant energy sources in an
application, a technician can use a detector interfaced to a computer to
determine the real time radiant energy in the application. This will allow
the technician to determine any problem sources of energy so the
detector can be set properly.
2.5 Configuration
RED1 detectors have field adjustable configuration switches located on
the front face of the detector. The factory settings are shown in
italic
text.
2.5.1 Sensitivity
All models of the RED1 detector have several sensitivity settings
available. The sensitivity settings are 20, 40, 60, and 80 feet.
Each setting is optimized to alarm to a 1 sq. ft. gasoline fire within
5 seconds. Switches 1 and 2 are used to control the sensitivity.
The factory default is 80 feet. (SW1 and SW2 are off.)
Note: Different fuels emit energy at differing rates. For example;
a fire involving fuel oil does not emit energy at the same rate as
gasoline.
2.5.2 Verify Control
Models RED1-HE1 to -HE4 have a Verify Relay. The Verify
function is armed when the detector detects a fire and will trigger
when the Verify function has confirmed the fire.
The switches located on the face of the detector allow the user to
select the verify level (Levels 1 to 6), disable the verify function
(Level 7), or have the Verify Relay operate in parallel with the Fire
Relay (Level 0)
The factory default is level 0 (SW3, SW4 and
SW5 are off) where the Verify Relay operates in parallel to the
Fire Relay.
The verify level sets the degree of certainty required to declare a
verified fire. Level 1 is the lowest level with the quickest response
(nominally about 5 seconds) and least certainty. Level Six is the
highest level with the slowest response (can exceed 30 seconds)
and the greatest certainty. The verify function enables an
algorithm which evaluates the fire signature over time to
determine the degree of certainty.
2.5.3 Latching Control
The latching controls allow the detector, Fire Relay and Verify
Relay to be set to “Latching” or “Non-Latching”. “Latching” means
the detector/relay will remain on until power is removed from the
