DESCRIPTION
Wall-mounted, NEMA 4X standalone ventilation
controller with one, two, or three high-performance
SC2-Series gas sensor modules.
Intuitive, menu-driven setup allows on/off, multi-speed,
and variable speed control of ventilation equipment in
response to user-specified gas concentration levels.
Multi-color LCD and standard horn/light module for
local annunciation of escalating alarm levels.
Conforming to Safety Integrity Level 2 (SIL 2) and
rigorous international standard EN 50545-1 for parking
garages and tunnels, PolyGard ® 2 monitoring and
control systems utilize advanced self-diagnostics and
flexible ventilation control functions to ensure maximum
human safety without compromising energy efficiency.
Advanced, microprocessor-based X-Change sensor
modules meet or exceed the EN 50545-1 self diagnostic standards including notifying the controller
when calibration is due. Although field calibration is
possible, X-Change technology allows fast and cost effective sensor module swaps minimizing field service
time, eliminating system downtime and ensuring peak
system performance for many years.
APPLICATION
To detect and control levels of toxic and combustible
gases in a wide variety of commercial applications
such as carbon monoxide and nitrogen dioxide levels
in parking structures, package sorting hubs, vehicle
repair shops, tunnels, and equipment rooms. Although
typically operating as a standalone controller directly
activating ventilation equipment in response to rising
gas levels, the SGC6 can also work in conjunction
with building management systems via Modbus
serial communications, analog (gas value) or binary
(threshold / relay) output signals.
FEATURES
- 1 or 2 on-board SC2-Series gas sensor modules
- Optional 3rd gas sensor input with DR6 Digital Remote sensor
- 2-Line, 16-character LCD display with dual color background
- Two (2) SPDT alarm relays, 30 VAC/VDC, 0.5 A
- One (1) 4-20mA analog output
- Audible / visual alarm annunciation
- RS-485 serial communications to DGC6-Series Digital Gas Controllers or other Modbus controllers
- 24 VAC/VDC powered
- Menu-driven controller setup
- X-Change sensor technology for low-cost life cycle maintenance
- Digital measurement processing with temperature compensation
- Internal diagnostics including integrated hardware watchdog
- High-impact polycarbonate enclosure, NEMA 4X (IP65)
- Software conforms to SIL 2 standard
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