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What is the tranducer used in a smoke detector?
There are two types:ionization - a tiny piece of Americium ionizes air in the transducer. a tiny electric current passes through this ionized air. smoke deionizes this air, reducing the current and tripping the alarm.photoelectric - a light and photocell in the transducer looks for smoke. smoke reduces the light falling on the photocell, tripping the alarm.
How do you replace a photocell on your outdoor light post?
# Turn off the power to the lamppost circuit at the breaker box. # Unscrew the mounting screws holding the lamp in place, and pull the lamp fixture from the post. Remove the wire nuts, and use the circuit tester to be sure the power is off. # Disconnect the wires to the fixture and the photocell. # Disconnect the locking nuts that hold the existing photocell on the post, and remove the photocell. If your lamp doesn't have a photocell, you'll need to drill an access hole in the post to install one. # Install the adhesive foam ring (provided with the photocell) around the mounting hole. # Run a bead of silicone sealant around the photocell where it will press against the interior of the lamppost. # Push the sensor through the mounting hole, and secure it with a locking nut. # Add silicone sealant inside the lamp fixture at any point where moisture might leak through to the photocell. # Connect the white wires from the power supply, lamp, and photocell together. Secure the connection with a wire nut. Connect the black photocell wire to the black power supply wire in the same manner. Connect the black lamp fixture wire to the red photocell wire and secure the connection with a wire nut. # Reainstall the fixture on the lamppost.
Do air particles change size or shape when air is removed from a flask?
No.
How can carbon dioxide be removed from air?
by washing it idiot
What gas is removed from the air aerobic respiration?
Oxygen
How does a photocell convert light into electrical energy?
Light heats a photocell, and the difference in temperature creates an electric current(:
Where do you buy a 6 volt replacement photocell?
You can buy 6v photocell dusk to dawn switches from Acetek photocells
What is the tranducer used in a smoke detector?
There are two types:ionization - a tiny piece of Americium ionizes air in the transducer. a tiny electric current passes through this ionized air. smoke deionizes this air, reducing the current and tripping the alarm.photoelectric - a light and photocell in the transducer looks for smoke. smoke reduces the light falling on the photocell, tripping the alarm.
All of the air is removed from a sealed metal can After the air has been removed the can looks as if it were crushed Why?
It means that the air pressure that sealed the can - can not be removed
How does a roof affect the position of a photocell?
the roof is slanted so you will need to put your photocell on the side of the roof where the sun is shining
Is photocell used in calculator?
Yes
What does photocell mean?
light of a cell
What types of sensor used in smoke alarm?
some use a photocell looking for a light source thru the air some use a nuclear source of ionizing radiation to ionize the air then measure its conductivity
When light strikes a photocell does the resistance increase or decrease?
When light strikes a photocell, the resistance decreases, allowing current to flow more freely.
Air has been removed and electrons flow?
air has been removed and electrons flow
What chemical element is used in a photocell?
Silicon
How do you replace a photocell on your outdoor light post?
# Turn off the power to the lamppost circuit at the breaker box. # Unscrew the mounting screws holding the lamp in place, and pull the lamp fixture from the post. Remove the wire nuts, and use the circuit tester to be sure the power is off. # Disconnect the wires to the fixture and the photocell. # Disconnect the locking nuts that hold the existing photocell on the post, and remove the photocell. If your lamp doesn't have a photocell, you'll need to drill an access hole in the post to install one. # Install the adhesive foam ring (provided with the photocell) around the mounting hole. # Run a bead of silicone sealant around the photocell where it will press against the interior of the lamppost. # Push the sensor through the mounting hole, and secure it with a locking nut. # Add silicone sealant inside the lamp fixture at any point where moisture might leak through to the photocell. # Connect the white wires from the power supply, lamp, and photocell together. Secure the connection with a wire nut. Connect the black photocell wire to the black power supply wire in the same manner. Connect the black lamp fixture wire to the red photocell wire and secure the connection with a wire nut. # Reainstall the fixture on the lamppost.
