SCX Controller
The SCX is a scalable gas detection controller engineered for continuous monitoring and measurement of toxic and combustible gases across local and distributed environments. Featuring multi-screen navigation and configurable alarm logic, the controller supports both digital and analog architectures - managing up to 32 digital channels and 8 to 16 analog (4–20 mA) inputs. Compatible with SA-220 and SA-220B transmitters, depending on the application. The system features automatic detection and configuration for Safeguard Analytics smart sensor modules, an intuitive full-color HMI, and rapid parameter setup via the Safeguard Configuration App. The system features automatic detection and manual configuration for Analog devices. Enclosures are available in Polycarbonate or Stainless Steel.
- SCX-3200M: Up to 32 Modbus digital channels
- SCX-4000MA: Hybrid digital/analog support (32 Modbus + 8 Analog)
- SCX-4800MA: Hybrid digital/analog support (32 Modbus + 16 Analog)
Where this product is deployed
- Fixed gas monitoring solutions
- Food and Beverage monitoring
- Safety applications
- Industrial manufacturing plants
- Mixed analog and digital sensors
Features & Capabilities
System Controller
- Up to 32 digital channels plus options 8 to 16 analog devices
- Compatible with SA-220 and SA-220B transmitters, depending on the application
- Color LCD HMI with green, amber, red, and blue status indicators
- Serial RS-485 Modbus RTU output
- Optional relay output
Electrical
- Standard: 10-30 VDC
- Optional: 90-240 VAC line power
- Alarm relays: Level 1, 2, 3 + Fault (Form C 5 A contacts)
Environmental & Enclosure
- -40 °C to +60 °C (-40 °F to +140 °F)
- 15% to 95% RH non-condensing
- NEMA 4X weatherproof enclosure
- Enclosure material options: Polycarbonate or Stainless Steel
- Non-hazardous locations
Technical Specifications
SCX Documentation
Product data sheet and instruction manual for the SCX Controller - available to view inline or download.
Full specifications, features, and applications in a printable PDF.
Installation & Service Manual (Rev 2)
SCX ManualInstallation, wiring, configuration, and service procedures for the SCX Controller - available to view inline or download.
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