Who used selenium photocells?

Who used selenium photocells?

Selenium photocells are commonly used in photographic-exposure meters, burglar alarms, electronic-door opening and counting devices, electronic control systems in factory assembly lines, and industrial colour perceptors.

How do selenium cells work?

A selenium photocell produces more or less electric power when exposed to more or less light. Its output of electrical current is connected an indicator, typically a pivoting electromagnetic coil with a lightweight needle attached.

How long do selenium cells last?

Up to 50 years, sometimes significantly more, depending on manufacturing quality and storage (especially exposure to light). Sometimes 5 years or less, ditto.

What kind of meter does a Weston Master use?

That meter is the old standby Weston Master II. This meter uses a seleium cell and has two ranges. The door on the back pops open for low light and is closed in bright light. All in all the meter works very well.

Where does the city of Weston get its water from?

Water service accounts are opened and billed by the City of Sunrise, as Weston purchases its water from the City of Sunrise Utilities Department. Details on the water meter reader service. For New Water Connections/Disconnections and account billing and payments: 954-746-3232.

What kind of dust is on Weston light meter?

(10 times magnification showing ameter coil with metalic dust drawn to the magnetic coil centre of a Weston ‘V’ meter). The meter mechanism is guaranteed to be restored and cleaned and unclogged of ferrous dust and with a new selenium cell fitted. Tested in excellent working order.

Where is the garbage collection in Weston Florida?

Garbage & recycling collection fees are placed onto your annual tax bill. On the east side of Weston Road, 1 block south of State Road 84, behind Westgate Square. The Broward Water Partnership can help you conserve water by offering rebates and other incentives for replacing older, water-wasting toilets, shower heads and faucet aerators.

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