Adreslenebilir Isı Dedektörü Isı Alarmı

Instruction Manual of CFT-920 Addressable Heat Detector
------ Please read this Manual carefully before installing and using the product.  -----
I. Product overview
CFT-920 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
It can realize electronic coding and rewrite the address via coder in situ.
Within a single-chip microcomputer, it can realize real-time data acquisition and processing, realize a curve tracing for the field situation.
It has a temperature compensation function and a sensor fault detection function (fault reporting  to fire alarm control panel).
Non-polarity, two-bus connection that ensures convenient installation and maintenance.
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
Executive standard: GB4716-2005
Operating voltage: 24V (pulse modulation)
Operating current: <300uA (monitoring status) or <1.5mA (alarm status)
Work indication: The red indicator will blink in the monitoring status or remain lit in the alarm status.
Weight: about 47g
Product class: A2
External dimensions: diameter: 100mm, height: 56mm (with the base)
Wiring method: non-polarity two-bus system (L1, L2)
Operating environment: Indoor, temperature: -10ºC~+50ºC; relative humidity: ≤95% (40ºC±2ºC, without condensation)
Coding mode: It can realize electronic coding via coder in situ. Address codes 1 to 324 are available for selection.
Installation height: ≤8m
Protection area: about 60m2. For details, see related provisions in GB50116-98 Code for Design of Automatic Fire Alarm System.
 Matched host machine: fire alarm control panel (such as CFT-MN300)
 
 
Definitions of terminals(non-polarity two-wire system):
1 --Signal terminal (L1)
2 -No Pin
3 --Signal terminal (L2)
4 -No Pin

2.    Wiring method: The detector is accessed through a compatible fire alarm control panel via a two-wire bus. It uses non-polarity connection. The terminals L1 and L2 of the two-wire bus are connected with the terminals 1 and 3 of the matched mounting base. Fig.3 is a schematic diagram of the connection between multiple detectors with a fire alarm control panel.


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.)
 
VI. Installation and debugging
Determine the location, mounting distance and numbers for mounting the detectors in the protection area according to relevant provisions and regulations of GB50116-98 Code for Design of Automatic Fire Alarm System and GB50166-2007 Code for Installation and Acceptance of Fire Alarm System.
A self-contained complete base is necessary during the installation of a detector. As shown in Fig.5, the model, the external dimensions, the mounting hole diameter and the mounting hole spacing of the base are DZ-910, 100mm×22mm (diameter×thickness), 5mm and 56mm~64mm respectively.