Sanjing Electronics A9020T Instruction Manual

Instruction Manual of A9020T Point-type Heat Fire Detector
------ Please read this Manual carefully before installing and using the product. -----
I. Product overview
A9020T point-type heat fire detector (Detector hereunder) is a mated product
of the SEC3002 fire alarm control panel. 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.
ü Built-in remote indicator output terminal, drive remote indicator lit when fire alarm。
III. Technical parameters
1.
Executive standard: EN54-5
2.
Operating voltage: 24V (pulse modulation)
3.
Product class: A2
4. Standby current: ＜300uA;
5. Alarm current: no remote indicator ＜1.5mA , has remote indicator ＜3.5mA
6.
Work indication: The red indicator will blink in the monitoring status or remain lit in the alarm
status.
7.
Weight: about 115g(with the base)
8.
External dimensions: diameter: 100mm, height: 60mm (with the base)
9.
Wiring method: non-polarity two-bus system (L1, L2); the terminal 2 and 4 can connect with
the remote indicator.
10. Operating environment: Indoor, temperature: － 10 ℃ ～ +50 ℃ ; relative humidity: ≤ 95%
(non-condensing)
11. Coding mode: It can realize electronic coding via coder in situ. Address codes 1 to 324 are
available for selection.
12. Matched host machine: SEC3002 fire alarm control panel.
IV. Appearance and dimensions (see Fig.1)
Fig.1(unit:mm)
Version: 106200171009
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V. Use and engineering application
1. Fig.2 is the schematic diagram of the matched mounting base.
Fig.2
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.
L2
Intelligent
two-bus
controller
L1
3. Remote Indicator connection: the negative and positive of remote indicator should respectively
connect on terminals 2 and 4,as shown in Fig.4.
4. Coding address: As shown in Fig.5, 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.)
Definitions of terminals(non-polarity
two-wire system):
1 --Signal terminal (L1)
2 – Negative of remote indicator
3 --Signal terminal (L2)
4 – Positive of remote indicator
Fig.3
Fig.4
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