The IP 212-45 connection diagram will help you mount the instant fire response device yourself. Owners of private properties and commercial facilities are confident that a fire alarm will pick up even a small amount of smoke.
Functional specifications
The device reacts to the proportion of smoke in the air. This uses the effect of scattering fire radiation by gray smoke.
When measuring the level of smoke, the indicator is set to switch to the "Fire" state. In this case, the internal resistance decreases to 1 kΩ. The indicator glows bright red, solid in fire mode and intermittent in normal conditions.
The performance of the signaling device is checked by a special device in test mode.
Design and operating procedure
Fire smoke detector IP 212-45 is an optical electronic device. In standby mode, the signaling device indicator flashes at a frequency of 12 times per minute. When there is smoke, the internal resistance of the device decreases, the signal is transmitted via a two-wire loop, the indicator glows brightly and constantly.
Complete set of fire detector IP212-45 contains two detachable elements: a signaling device and a socket.
Structurally, the device consists of a 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 maintenance of the device.
The connection diagram for IP 212-45 must be placed in the product passport. In the device - the consumer of electricity, the reliability of electrical contacts is required. The detector has screwless contacts, which adds safety in operation and reduces assembly time.
Removing the device from the socket is accompanied by the formation of a "Fault" signal in the daisy chain connection. Technically, signaling is achieved by the designed short-circuited contacts 3 and 4.
The alarm operates 24 hours a day without interruption.
The fire smoke detector IP 212-45 is configured to work with control and receiving devices that respond to a decrease in the internal resistance of IP 212-45 and provide voltage in the loop in the range of nine to thirty volts.
Installing the appliance
One fire detector serves 80 square meters of premises with a ceiling height of 3.5 meters. But according to fire safety rules, even in a ten-meter room, sensors are installed in duplicate.
The IP 212-45 sensor is connected on the ceiling, on the wall and in the space between the suspended and base ceilings. The signaling device is attached to the false ceiling with a mounting ring. The standards for the location of devices are as follows:
- nine meters between adjacent ceiling sensors;
- between the walls the distance is no further than 4.5 meters;
- the geometry of the room is required to be rectangular, without differences in ceiling heights over 0.4 m and without appendices in the contour; 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 scheme.
The detector block contains four contacts:
1 - For remote indicator.
2 - Positive voltage output.
3 - Negative voltage output.
4 - To generate a "Fault" signal.
The cable for connecting one or a group of sensors is chosen as non-combustible, for example, a low-toxic copper cable with a non-combustible mica barrier KPVVng(A)-FRLSLTx 1 x 2 x 0, 5.
The IP 212-45 fire detector connection diagram is designed for single and group cases. When connecting a group, a resistor is soldered into the far sensor block.
Mounting fasteners demonstrate the ability to slip out of hands and roll into inaccessible places. The developers of IP 212-45 provided for a connection without screws. There are 4 holes in the device block. 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 by one and a half centimeters. The prepared core is inserted into the hole, the flag is moved with a screwdriver toterminal. If the installation operations are carried out correctly, the master will hear a click - this is the core fixed in the terminal.
After the installation of the four terminals according to the connection diagram IP 212-45 is tested for performance.
Technical parameters
The device is small in volume - diameter is 9.3 centimeters, and height is 4.6 cm. The weight of the assembly is 210 grams. If the structure falls from the ceiling, physical injury is excluded.
Manufacturers guarantee a ten-year life of the alarm.
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 fire propagation speed both in a residential building and in an industrial building.
The disadvantage of IP 212-45 is that the device reacts to both smoke and dust. To avoid false operation of the device, the chamber is cleaned with a vacuum cleaner. Electronic equipment is vacuumed in the "blowing" mode. The frequency of preventive measures is once every six months.
