Det-Tronics U7602B-P Unitized UV Flame Detector/Controller - Manual (Page 4)

SYSTEM APPLICATION
The Det-Tronics U7602 Unitized Detector/Controller
model is an ultraviolet (UV) flame detector and con-
troller housed in a single, explosion-proof enclosure.
It provides fast, reliable flame detection in a wide vari-
ety of applications. The U7602 uses the Automatic
Optical Integrity (
oi) feature, which provides a contin-
uous check of detector optical surfaces and detec-
tor/controller circuitry. The oi test is automatically
performed once each second, for assurance that the
entire fire detection system is operating.
The U7602 Detector/Controller responds instantly to
the ultraviolet radiation that is emitted by a flame. It is
designed for use in hazardous locations and is partic-
ularly suitable for use in outdoor applications because
it is not affected by wind or rain, and is insensitive to
solar radiation. In addition, the detector does not
respond to normal artificial light.
Typical applications for the Det-Tronics ultraviolet fire
detection systems are:
— Wherever highly combustible materials are
involved
— Where there is a need for instantaneous response
to flame
— Wherever unsupervised areas require automated
fire protection.
— Where there is a large capital investment to be
protected.
Examples of actual installations using Det-Tronics UV
detectors in automated fire protection systems include:
• Gasoline transport loading terminals
• Offshore drilling and production platforms
• Pipeline pumping stations
• Tank farms
• Refineries
• Marine engine rooms
• Jet engine test cells
• Butane and propane loading and storage
• Pipeline compressor stations
• Pipelines in highly populated areas
• Gas gathering facilities
• LNG loading, transfer and storage facilities
• Hydrogen and ammonia production and refinery
reformers
• Electrostatic powder coating booths
• Outdoor storage of plastic packaging materials.
FEATURES
• Fast response. Typical response to an intense ultra-
violet source is less than 25 milliseconds.
• Automatic oi feature provides automatic self-check-
ing of circuitry and optical surfaces.
• Time delayed fire relay (field adjustable from 0.025
to 30 seconds) and fault relay.
• Operates under adverse weather conditions such
as wind, rain, snow, high humidity and extremes of
temperature or pressure.
• Current output for indication of fire and fault condi-
tions.
• Insensitive to solar radiation and normal artificial
lighting.
• Low power consumption — standby condition 1.5
watts typical, alarm condition 5.0 watts maximum.
©
Detector Electronics Corporation 1995 7/95 95-8239-03
* oi is Detector Electronics' Trademark for its patented Optical
Integrity Systems, U.S. Patent 3,952,196, United Kingdom Patent
1,534,969, Canada Patent 1,059,598.
INSTRUCTIONS
Unitized Ultraviolet Detector/Controller
U7602