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16 Channel Modbus® Master Display and Alarm Monitor / Controller
The Net Safety SafeGuard Alarm Controller is designed as a cost-effective mini-system controller
alternative to expensive PLC systems. The SafeGuard comes standard with a centralized, easy-to-read
LCD providing simultaneous status on 16 channel inputs as well as several expansion options including
Mimic Display capabilities and HMI software packages. The SafeGuard can be equipped for any application,
indoors or out, with your choice of a basic wallmount, a weather-proof fiberglass enclosure or
rackpanel mounting.
The SafeGuard is easy to configure and user friendly. Measurement ranges in engineering units,
adjustable alarm set-points, dual serial interfaces and many other features combine to allow the
SafeGuard to satisfy the needs of many demanding applications. It is widely used for centralizing
the display and alarm processing functions in critical flame and gas detection applications.
Analog inputs may be accepted and conditioned via sensor specific analog input cards. An RS-485
Modbus slave port allows up to 128 SafeGuard's to be multidropped onto a single data highway for
interrogation by another Modbus master. SafeGuard's may also be cascaded by connecting one unit's
master port to another's slave port. SafeGuard options such as discrete alarm relays per channel
or 4-20mA I/O are added by connecting appropriate 8 channel boards (2 required for more than 8
channels) to the economical I2C expansion bus. Familiar "telephone style" cables and connectors
interface to this bus. Versatile, expandable, and a wide range of system configuration options -
satisfying the most demanding user applications.
SPECIFICATIONS SHEET |
PRODUCT MANUAL
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- 8 channel display mode and boards allows for economical configuration for smaller systems.
- Dual Modbus RS-485 serial ports for simultaneous master / slave operation.
- Alarm Zoning feature available - target specific zones at the same time or entire areas. Relay Acknowledge feature allows silencing of external audible devices during alarm.
- Graphic LCD readout displays monitored data as trends, bar graphs and engineering units.
- Standard A SPDT common alarm relays for HORN, HIGH, WARN & FAULT. Optional discrete channel alarm relays also available.
- Alarm event printer interface, direct sensor inputs, 4-20mA outputs, discrete alarm relays and others supported via an I2C expansion bus.
- Cal Mode offers pushbutton zero /span calibration.
- Authorization Mode allows locking of critical configuration variables.
- Magnetic keypad available for nonintrusive operation in potentially hazardous locations.
- NEMA 4X enclosure wallmount, basic wallmount and rackmount options available.
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