System Sensor BS5839 manual B500 Series Bases

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24

B500 SERIES BASES

A range of detector bases and accessories are available for use with Series 200 plus plug in detectors to suit the requirements of varying applications. All bases are 102mm in diameter.

B501 Standard Base:

For normal applications.

Height:20mm

Weight:53g

B501DG Deep Base:

For use when cabling in surface mounted conduit.

Height:26mm

Weight:57g

B524HTR Heater Base:

Includes an anti-condensation heater for use in cold applications where condensation may be expected. The B524HTR uses heater resistors to provide an element of heating to reduce condensation.

Height:	36mm
Weight:	92g
Power supply:	Up to 125mA; up to 32VDC
Temperature:	-30°C to 60°C

B524RTE Relay Base:

Relay base which follows alarm status of detector, used to control external devices such as fire shutters.

Height:	36mm
Weight:	100g
Contact Rating:	2A at 30VDC no/nc
Temperature:	-10°C to 60°C

B524IEFT-1 ISOLATOR BASE

The B524IEFT-1 isolator base monitors the loop on either side of the base, and if it detects a short circuit, it isolates that side. As a result, when used in conjunction with other isolator bases or modules, short circuits can be isolated from the remainder of the loop, thus minimising the effect of the fault. Once the short circuit is removed, the isolator will automatically restore the loop.

Height:	26mm
Operating Temperature: -30°C to 70°C
Standby Current:	100µA
Max ON resistance:	0.2 Ohms at 24V

Note: This document is based on the recommendations of BS5839 Part 1: 2002. It is intended only as a guide to the application of fire detection systems.

Reference must be made to relevant national and local standards.