UTC Fire and Security Det-Tronics X Series Instructions Manual page 3

automatic Oi
The detector includes the Automatic Optical Integrity
(o i ) feature — a calibrated performance test that is
automatically performed once per minute to verify
complete detector operation capabilities. The detector
automatically performs the same test that a maintenance
person with a test lamp would perform — once every
minute, 60 times per hour.
The detector also incorporates both magnetic o i and
manual o i features that provide the same calibrated
test as the automatic o i , and in addition actuates the
Alarm relay to verify output operation for preventive
maintenance requirements.
performed at any time and eliminate the need for testing
with a non-calibrated external test lamp.
Data Logging
Data logging capability is also provided.
conditions such as normal, faults and alarms are
recorded. Each event is time and date stamped. Event
data is stored in non-volatile memory when the event
becomes active, and again when the status changes.
Data is accessible using the RS-485 port. The RS-485
supports MODBUS protocol.
Integral wiring Compartment
All external wiring to the device is connected within the
integral junction box. The detector is furnished with
four conduit entries, with either 3/4 inch NPT or 25 mm
threads.
R7404 CONTROLLER
Each standard R7404 Controller monitors up to 8
X-Series Pulse Output Flame Detectors. The R7404/X-
Series flame detector systems feature automatic optical
integrity (o i ), which provides a continuous check of
detector optical surfaces, detector sensitivity, and
electronic circuitry of the detector/controller system and
automatic fault identification, which monitors the system
for proper operation and provides a digital display of
system status using a numerical code. Other features
include individual zone identification and "voting"
capability, as well as manual o i testing. See Figure 2.
Voting of 2 or more UV flame detectors is required for
compliance to ANSI/NFPA 72 to maintain ground fault
monitoring integrity.
1.3
These features can be
Status
R7494 CONTROLLER
The R7494 Controller is also used with all X-Series
Pulse Output Flame Detectors. Up to 8 detectors can
be used with each controller, with up to 4 controllers
for the system. The microprocessor based controller
provides features such as front panel LEDs and digital
displays, automatic o i , count test mode and voting
capability.
R6006 RELay OUTPUT mODULE
The R6006 Relay Output Module receives inputs from
solid state switching devices and provides load relay
switching in response to the input signals. The R6006
has as many as eight relay output circuits that can be
programmed for instant or time delayed operation. The
relays have Form C contacts which can operate alarms,
solenoids or other equipment that draw 3 amperes or
less at up to 30 vdc or up to 250 vac. Each relay is
represented on the R6006 front panel by an LED, which
indicates whether or not it is activated. Four different
models are available, each with a different relay output
configuration. See Figure 3.
R1425 DETONaTOR mODULE
The R1425 Detonator Module is used with a flame
detector and R7404/R7494 Controller to provide
a high speed response for explosion suppression
systems in hazardous applications such as munitions
manufacturing. The R1425 provides two independent
zones of protection. Each zone has one output circuit
that can be used "as is" with internal capacitors
providing one joule of energy. For continuous output
DETECTOR SELECTION
AMBER LED
GREEN LED
Figure 2—R7404/R7494 Flame Controller Front Panel
3
RED LEDS
RED LEDS
TEST/ACCEPT
AMBER LED
LAMP TEST
KEYLOCK SWITCH
E0235
95-8574