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DETCON> CONTROLLER
CARDS
Model Series
12
Single Sensor Control Card Systems
• Modular Front Panel Plug-in
Design
• Standard Outputs: 4-20mA, RS-485 Modbus
• Programmable Relay Outputs: 3 Alarms plus Fault
• Control Module Status Accessible via RS-485
• Alarm Reset & Alarm Silence
• Alarm Disable for Calibration
• Full Diagnostics for Sensor Inputs & Field
Wiring
• Test Function Simulation for Verifying Operation
• Five Year Fixed-Fee Service Policy
Detcon Model Series 12 gas detection
and alarm systems consist of single sensor control cards
that can be integrated into one system design to create
multi-function monitoring and control of a wide range
of field devices. Field devices include gas detection
sensors, flame and fire detection devices and process
sensors. Each control card is capable of supervising
a single field device, displaying the current status
of that device and providing alarm relay outputs once
user-configured limits are detected. Gas detection control
modules display the real time concentration of a wide
range of toxic gases, combustible gas, and oxygen sensors
that output a 4-20 milliamp signal. The flame detection
module displays the real time status of any flame detector
with a 4- 20 milliamp output signal. The alarm annunciator
module can be used to monitor smoke and thermal detectors,
pull stations, and dry contact closure devices.
Model Series 12 single sensor
control cards feature four alarm relays. Three relays
are used as active alarm control outputs and the fourth
relay is a fault condition relay. Each alarm relay is
adjustable in single digit increments across the range
of sensitivity. Alarm relays can be user-configured
as latching, non-latching, normally energized or normally
de-energized via simple onboard programming jumpers.
Front panel indicators include alarm status LEDs and
a 7-segment LED digital display of the real time concentration
of a field device when applicable. Each module is addressable
via RS-485 serial communication.
Detcon manufactures a variety
of pre-engineered Model 12 Series mainframe hardware
assemblies including NEMA 1 panel mount, standard 19”
rack mount, NEMA 4X weather-proof and NEMA 7 explosion-proof.
Engineering services for high density integrated fire,
gas and process control systems are available from the
factory.
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