System Sensor

• Low profile design
• Low current draw
• Backward compatible with Series 100 detector range of bases
• Wide operating voltage 8 to 30VDC
• Bi-colour LED detector status indicator
• Automatic drift compensation
• Programmable sensitivity
• Addressable feature
• Advanced maintenance features via remote hand-held test unit
• Range of detector bases available
• Tested and approved to EN54 – 7:2000 (Amendment 1)

Architect/Engineer Specifications
Each unit can be given a unique address that will be displayed on the S300ZDU whenever the detector is in alarm. All the features via the hand-held programming unit are achieved effectively and effortlessly without the need to remove the detector or having to gain direct physical access (other than by the use of ‘No Climb Products’ or similar servicing tool), saving valuable commissioning/maintenance time. They provide the end user with the confidence to know that his system is being regularly serviced and that it is operating at it’s optimum level, with minimum disruption to his own business activities.A variety of detector bases can be used with the 2351E detector, providing application flexibility and compatibility with aide range of Fire Alarm Control Panels. All bases are fitted with a shorting spring to permit circuit testing prior to fitting the detector and have a tamper resistant feature, which when activated prevents removal of the detector without the use of atoll.All System Sensor products are covered by our extended 3 year warranty.

Electrical Specifications

Operating Voltage Range 8 to 30VDC (Nominal 12/24VDC)
Maximum Standby Current  @25ÞC 50μA @ 24VDC (LED no blink)
Maximum Permissible Alarm Current 80mA @ 24VDC (Limited by panel)

Environmental Specifications

Application Temperature Range (see note) -30ÞC to +70ÞC
Humidity 5 to 95% Relative Humidity (non condensing)

Mechanical Information

Height 38mm (plus 9mm for B401 base)
Diameter 102mm
Weight 105g (plus 60g for B401 base)
Wire Gauge for Terminals 0.75mm2 to2.5mm2
Color Pantone, warm grey 1C
Material Bay blend FR110

Product Range

Bases B401 Standard Base B401SD Standard base with schotty diode
B401R Resistor base with 470 ohm resistor B401RSD Standard base with 470 ohm resistor and Schottky diode
B401RM Standard recess base with 470 ohm resistor B401DG Deep base
B401DGR Deep base with 470 ohm resistor B401DGSD Deep base with Schottky diode
B312NL 12V non-latching relay base B312RL 12V latching relay base
Accessories S300RPTU Remote Programming and Test Unit S300RTU Remote Test Unit
S300SAT Remote Programming Interface Unit S300ZDU Zonal Display Unit
Other Detectors 2351TEM, 4351E, 5351E, 535ITE