Addressable heat detector Intelligent fixed temperature heat alarm

I. Product overview

CST-AD920 addressable heat detector (Detector hereunder) is a mated product of the 9000 series fire alarm control panels. It uses a two-bus work mode. With an internal microprocessor, it supports electronic coding. The detector realizes real-time acquisition of the in situ temperature data and sends back the data to a fire alarm control panel. It can also receive and execute the control commands given by a fire alarm control panel. When in a routing inspection, the detector indicator will blink. When there is a fire in the monitored area and the temperature has reached the alarm threshold, the fire alarm control panel will confirm a fire alarm according to the received message sent from the detector, and the detector indicator will light at the same time to indicate a fire alarm.

The detector is suitable for such industrial and civil buildings that have a great deal of heat when fire takes place, such as kitchens, boiler rooms, generator rooms, drying workshops and smoking rooms and is not suitable for places with a great deal of smoke but little heat.

II. Product features

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

ü Within a single-chip microcomputer, it can realize real-time data acquisition and processing, realize a curve tracing for the field situation.

ü It has a temperature compensation function and a sensor fault detection function (fault reporting to fire alarm control panel).

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

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

III. Technical parameters

1. Executive standard: GB4716-2005

2. Operating voltage: 24V (pulse modulation)

3. Operating current: max300uA (monitoring status) or max1.5mA (alarm status)

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

5. Weight: about 47g

6. Product class: A2

7. External dimensions: diameter: 100mm, height: 56mm (with the base)

8. Wiring method: non-polarity two-bus system (L1, L2)

9. Operating environment: Indoor, temperature: -10 to+50; relative humidity: ≤95% (40±2, without condensation)

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

11. Installation height: ≤8m

12. Protection area: about 60m². For details, see related provisions in GB50116-98 Code for Design of Automatic Fire Alarm System.

13. Matched host machine: fire alarm control panel (such as CST-MN300)

3. Coding address: As shown in Fig.4, detector is accessed via the detector mounting base on the coder, non-polarity connection is adopted for the terminals L1 and L2, set the coder with the coding function, select the correct address number and press the RUN key to complete the address code setup. (Note: See the User’s Manual of the coder for the detailed operation.)

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