Photoelectric smoke detectors are suitable for places where there is a lot of smoke during fires and smoke-free under normal circumstances, such as: restaurants, hotels, teaching buildings, office buildings, computer rooms, communication rooms, book banks, archives and other industrial and civil buildings. However, it is not suitable for places where there is a large amount of dust and water mist; it does not apply to places where steam and oil mist may be generated; it does not apply to places where smoke stays under normal conditions.
Precautions
1. Press the test button for at least 3 seconds and a clear and loud pulsating alarm signal will be sent out.
2. This means that the detector is actually working. At the same time as the alarm, the LED flashes quickly.
3. The detector can also be tested by blowing smoke into the detection chamber. (Do a test once a week to get reliable work of the detector)
4, can not be installed above the temperature, high humidity, otherwise it will affect the sensitivity;
5, in order to keep the sensor work well, need to clean the sensor every six months, first turn off the power, then use a soft brush to sweep the dust can be, and then start the power supply.
BN-701 photoelectric smoke detector uses the principle of particles in smoke to refract infrared light to detect fire. The circuit is mainly composed of an infrared emitting part and a receiving part. The transmitting tube and the receiving tube are placed in an optical labyrinth, and the optical labyrinth can shield the external stray light. T-interference, but does not affect the entry of smoke. In the smoke-free state, only weak infrared light is received. When smoke enters, the received light signal is enhanced due to scattering. When the smoke reaches a certain concentration, an alarm signal can be output. In order to reduce r interference and reduce power consumption, the transmitting circuit operates in pulses, which can increase the service life of the launch tube.
<br> <br> technical parameters Operating voltage: DC 9V 35V?
Standby current: 16mA (relay normally closed)
3mA (relay normally open)
Alarm current: 8mA (relay normally closed)
19mA (relay normally open)
Alarm indication: Red LED is always on Sensor: Infrared photoelectric sensor Operating temperature: -10°C~+50°C
Ambient temperature: up to 95% RH (no condensation)
Anti-RF interference: 10MHz-1GHz20V/m
Report output: Normally open/closed selectable, contact capacity DC28V100mA
Reset method: Automatic reset/power off reset Optional coverage area: When the space height is 6rn—12m, the protection area of ​​a detector is 80m2 for a general protection site, and the protection area is 60m for a space height of 6m or less. Square meters. The specific parameters shall be based on the design specification of fire automatic alarm system GB50116-98.
Implementation standards: GB4716-2005, EN54-7
Sensitivity: 0.5db/m (±0.ldb/m)
Dimensions: 104mm (diameter) * 51 painting (height)
Precautions
1. Press the test button for at least 3 seconds and a clear and loud pulsating alarm signal will be sent out.
2. This means that the detector is actually working. At the same time as the alarm, the LED flashes quickly.
3. The detector can also be tested by blowing smoke into the detection chamber. (Do a test once a week to get reliable work of the detector)
4, can not be installed above the temperature, high humidity, otherwise it will affect the sensitivity;
5, in order to keep the sensor work well, need to clean the sensor every six months, first turn off the power, then use a soft brush to sweep the dust can be, and then start the power supply.
BN-701 photoelectric smoke detector uses the principle of particles in smoke to refract infrared light to detect fire. The circuit is mainly composed of an infrared emitting part and a receiving part. The transmitting tube and the receiving tube are placed in an optical labyrinth, and the optical labyrinth can shield the external stray light. T-interference, but does not affect the entry of smoke. In the smoke-free state, only weak infrared light is received. When smoke enters, the received light signal is enhanced due to scattering. When the smoke reaches a certain concentration, an alarm signal can be output. In order to reduce r interference and reduce power consumption, the transmitting circuit operates in pulses, which can increase the service life of the launch tube.
<br> <br> technical parameters Operating voltage: DC 9V 35V?
Standby current: 16mA (relay normally closed)
3mA (relay normally open)
Alarm current: 8mA (relay normally closed)
19mA (relay normally open)
Alarm indication: Red LED is always on Sensor: Infrared photoelectric sensor Operating temperature: -10°C~+50°C
Ambient temperature: up to 95% RH (no condensation)
Anti-RF interference: 10MHz-1GHz20V/m
Report output: Normally open/closed selectable, contact capacity DC28V100mA
Reset method: Automatic reset/power off reset Optional coverage area: When the space height is 6rn—12m, the protection area of ​​a detector is 80m2 for a general protection site, and the protection area is 60m for a space height of 6m or less. Square meters. The specific parameters shall be based on the design specification of fire automatic alarm system GB50116-98.
Implementation standards: GB4716-2005, EN54-7
Sensitivity: 0.5db/m (±0.ldb/m)
Dimensions: 104mm (diameter) * 51 painting (height)
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