The IP 212-45 connection diagram will help to independently mount a device for instant response to fire. Owners of private estates and commercial properties are sure: a fire alarm will catch even a small smoke.
Functional characteristics
The device responds to a fraction of smoke in the air. Here, the effect of dispersing fire radiation by gray smoke is used.
When measuring the level of smoke, the indicator is configured to switch to the "Fire" state. In this case, the internal resistance decreases to 1 kOhm. The indicator glows with a bright red light, continuous in the "fire" mode and intermittent in a normal environment.
The operation of the signaling device is checked by a special device in test mode.
Device and operating procedure
Fire smoke detector IP 212-45 - optical electronic device. In standby mode, the indicator light flashes 12 times per minute. With smoke, the internal resistance of the device decreases, the signal is transmitted via a two-wire loop, the indicator glows brightly and constantly.
The complete set of the fire detector IP 212-45 contains two detachable elements: a signaling device and a socket.
Structurally, the device consists of a circuit board with radio components mounted in a plastic case and a removable smoke chamber.
Removable - detachable design is effective and time-saving during installation and technical preventive maintenance of the device.
In the passport of the product, the connection diagram IP 212-45 is necessarily posted. In the device - the consumer of electricity, reliability of electrical contacts is required. The detector contacts without the use of screws, which adds safety in operation and reduces assembly time.
The removal of the device from the outlet is accompanied by the formation of a “Fault” signal in the loop connection of the loop. Technically, the signal is achieved by the designed short-circuited contacts No. 3 and No. 4.
The alarm operates 24 hours a day without interruptions.
The smoke smoke detector IP 212-45 is configured to work with monitoring and receiving devices that respond to a decrease in the internal resistance of IP 212-45 and provide voltage in the alarm loop in the range of nine to thirty volts.
Instrument Installation
One fire detector serves 80 square meters of the room with a ceiling height of 3.5 meters. But according to the rules of fire safety, even in a ten-meter room, the sensors are installed in two copies.
The IP 212-45 sensor is connected on the ceiling, on the wall and in the space between the suspended and the base ceiling. The indicator is mounted on a suspended ceiling with a mounting ring. The standards for the location of the devices are as follows:
- there is a distance of nine meters between adjacent ceiling sensors;
- between walls the distance is not further than 4.5 meters;
- the geometry of the room is required rectangular, without differences in ceiling heights of more than 0.4 m and without appendixes in the circuit; if the conditions are not met, the number of sensors is increased.
Installation of the device is simplified due to the versatility of the IP 212-45 connection diagram.
The detector block contains four contacts:
No. 1 - For the portable indicator.
No. 2 - Positive voltage output.
No. 3 - Negative voltage output.
No. 4 - To generate a “Failure” signal.
The cable for connecting one or a group of sensors is selected as non-combustible, for example, a low-toxic copper cable with a non-combustible barrier from mica KPVSVng (A) -FRLSLTx 1 x 2 x 0.5.
The connection diagram of the fire detector IP 212-45 is designed for single and group cases. When the groups are connected, the resistor is soldered into the block of the distant sensor.
Mounting hardware demonstrates the ability to slip out of hands and roll into inaccessible places. The developers of IP 212-45 provided a connection without screws. In a block of the device 4 openings are equipped. The cable core is stripped to the length of the upper phalanx of the index finger. If the installer has a ruler in his pocket, then the wire is stripped one and a half centimeters. The prepared core is inserted into the hole, the screwdriver moves the flag to the terminal. With proper installation operations, the master will hear a click - this core is fixed in the terminal.
At the end of the installation of the four conclusions according to the connection diagram, IP 212-45 is tested for operability.
Technical specifications
The device is small in volume - 9.3 centimeters in diameter and 4.6 cm high. The assembly weight is 210 grams. If the structure falls from the ceiling, physical injuries are excluded.
Manufacturers guarantee a ten-year life of the detector.
The interval between the moment of smoke and the operation of the device does not exceed nine seconds. This time is 4-6 times less than the linear horizontal speed of fire propagation both in a residential building and in a production building.
The disadvantage of IP 212-45 is that the device responds to smoke and dust. To avoid false alarms, the camera is cleaned with a vacuum cleaner. The electronic equipment is vacuum cleaned in “blowing” mode. The frequency of preventive measures is once every six months.