I. Product overview

930E Addressablesmoke detector (Detector hereunder) is a kind of photoelectric smoke detector. Withan internal microprocessor, it supports electronic coding and is accessed through a compatible fire alarm control panelof MN300 via a two-wire bus. The detector realizes real-time acquisition of the in situ smoke concentration data and sends back the data to a fire alarmcontrol panel. It can also receive and execute the control commands given by afire alarm control panel.

The detector is suitable for such industrial and civilbuildings that have a great deal of smoke during fires but no smoke undernormal circumstances, such as restaurants, hotels, teaching buildings, officebuildings, computer rooms, communication machine rooms, libraries and archives.It is not suitable for  places with agreat deal of retained dust and water mist, places where steam and/or oil mistmay be generated and places with retained smoke under normal circumstances.

II. Product features

ü   It can realize electronic coding and rewritethe address via coder in situ.

ü   Within a single-chip microcomputer, it can process thesampling data in real-time, save the latest 144 historical data and realize acurve tracing for the field situation.

ü   It has a temperature, humidity and dust accumulation driftcompensation function and a sensor fault detection function (fault reporting tofire alarm control panel).

ü   Non-polarity, two-bus connection that ensuresconvenient installation and maintenance.

ü   Designed with an upper cover and a lower cover and installedon an independent base, it can be installed, debugged and maintained conveniently.

III. Technical parameters

1.     Executive standard: GB4715-2005

2.     Operating voltage: 24V (pulse modulation)

3.     Operating current: ＜300uA(monitoring status) or ＜1.5mA(alarm status)

4.     Work indication: The red indicator will blink in themonitoring status or remain lit in the alarm status.

5.     Weight: about 70g

6.     Externaldimensions: diameter: 100mm,height: 55mm (withthe base)

7.     Wiring method: non-polaritytwo-bus system (L1, L2)

8.     Operating environment: Indoor, temperature: －10℃～+55℃;relative humidity: ≤95% (40℃±2℃, withoutcondensation)

9.     Coding mode: It can realize electronic coding via coder in situ. Address codes 1 to 324 are available forselection.

10.   Installation height: ≤12m

11.   Protection area: about 60m². For details, see related provisions inGB50116-98 Code for Design of AutomaticFire Alarm System

12.   Matched host machine:fire alarm control panel (such as MN300)