High pressure sodium fixture
Was trying to figure out why my dusk to dawn light quit. Jumped the light
sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al |
High pressure sodium fixture
from buffalo ny: sometimes when the starter circuit fails in a 110v hps
35 watt light we can screw in a 110v regular incandescent bulb and it lights. subject to your socket size may need a mogul to standard adapter. an hps bulb will not light up in a standard socket. Big Al wrote: Was trying to figure out why my dusk to dawn light quit. Jumped the light sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al |
High pressure sodium fixture
if you screw a regular 110 incandescent (it's a 110 fixture ?) bulb in and
it lights, then the ballast is at fault "Big Al" wrote in message ... Was trying to figure out why my dusk to dawn light quit. Jumped the light sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al |
High pressure sodium fixture
So you need a new ballast, bulb, and meter:(
Your probably better off buying a whole new fixture, and meter with auto volt detect. it sets the meter to the range needed, no more blown meters |
High pressure sodium fixture
Big Al wrote:
Was trying to figure out why my dusk to dawn light quit. Jumped the light sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al Peek voltage necessary for starting High pressure sodium 35-100 watts: 2500 volts! High pressure sodium 150-1000 watts: 4000 volts! -- Joseph Meehan Dia duit |
High pressure sodium fixture
"Joseph Meehan" wrote in message . .. Big Al wrote: Was trying to figure out why my dusk to dawn light quit. Jumped the light sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al Peek voltage necessary for starting High pressure sodium 35-100 watts: 2500 volts! High pressure sodium 150-1000 watts: 4000 volts! -- Joseph Meehan Then I better follow the other poster's advice and get an auto ranging meter:) (And a 100 to 1 divider probe.) Thanks, Al |
High pressure sodium fixture
Big Al wrote:
"Joseph Meehan" wrote in message . .. Big Al wrote: Was trying to figure out why my dusk to dawn light quit. Jumped the light sensor and I could hear a slight buzz coming from the fixture. Unscrewed the 70 Watt lamp and put my DVM across the socket. Found out there is a heck of a lot of voltage there. The DVM made an arcing sound and quit. Display still comes on but no readings. Opened it and found the fuse blown. Thought that was it, but the meter is shot. How much voltage is in that socket anyway? Al Peek voltage necessary for starting High pressure sodium 35-100 watts: 2500 volts! High pressure sodium 150-1000 watts: 4000 volts! -- Joseph Meehan Then I better follow the other poster's advice and get an auto ranging meter:) (And a 100 to 1 divider probe.) Thanks, Al HPS has a starter to provide a narrow high voltage spike to initiate the arc. I don't think you want to measure it. bud-- |
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