If the light does not come on, the photocell is defective and needs replacing. HPS bulbs should last four to six years, depending on the number of on/off cycles and hours of use. High-pressure sodium lamps are widely used in greenhouse production, but they require maintenance for peak efficiency. Turn off the power to the light at the switch or breaker box to prevent burns. Check the wire nuts connecting the electricity to the light. When a bulb begins to fail, it is off for about 10 percent of the time and increases to about 80 percent of off-time before it fails completely. High-pressure sodium lamps (also known as HPS Lamps or HPS lights) are a type of sodium lamp that is widely used in industrial lighting and many public outdoor areas. These lamps … Cover the eye with any other thick material to block light for this test. 3. 4. Pull out your owner's manual to make sure the accessories are appropriate for your lamp. The lifetime of a capacitor depends on how often the lamp is started and the temperature of the capacitor (the warmer the temperature, the shorter the lifetime). Metal halide lamps do not require an ignitor to start, so the test for a failed ignitor for an HPS lamp is to screw in a metal halide bulb of the same wattage and see if it starts. Failed IgnitorA less common problem is failure of the ignitor. An outdoor sodium light that does not illuminate may have a faulty bulb, wiring inconsistencies or need a replacement photocell. Grasp the wire nut with the other hand. Step 3 - Check Accessories. Some other critical factors at play here are things like: the size of the area … © Copyright 2020 Hearst Communications, Inc. In our experience, the partially failed capacitors have 50 percent of their rated capacity (13 microfarads instead of the normal 26). Fix your H.P.S. They lose roughly 15% of their heat emissions which adds to their inefficiency. Place a new bulb in the fixture and tighten it in a clockwise direction. Observe the two wires inside. An incorrect lamp-and-ballast combination will exhibit the same symptoms as a bad bulb. Be sure to cut off power to the lamps before working with them for safety reasons. I will still blow the water out of the conduit and try this but don't comprehend the center light without malfunction if water being the culprit. Hold a wire junction in one hand. In high pressure sodium, the dark gettering material in the neck of the bulb near the base will turn white or disappear. Fixtures with partially failed capacitors have a power factor of 0.70 to 0.80. Turn off the power to the light at the switch or breaker box to prevent burns. In fact, they're roughly as efficient as LEDs in terms of their light output for each watt of energy used. After visual inspection, many growers find that some lamps in their greenhouse either aren’t operating or aren’t doing so at full brightness. Operating HPS lamps at less than full output, however, produces color shift, changes in CRI, and reduced lamp efficacy. Each of the two wires should be wound tightly together with no signs of corrosion in the junction. Review the accessories on your lamp. Replace lamp. A leak in the outer bulb will cause oxidation of the metal parts inside. There are two kinds of sodium lights: Low Pressure (LPS) and High Pressure (HPS).These lamps are mostly used for street lighting as well as industrial uses. high pressure sodium ballast wiring: 1. All Rights Reserved. The door swings open in the opposite direction of the lock on hinges. The first course of action is to simply change the bulb. 2249 S. McDowell Ext. First, ensure that the lamp is receiving the desired voltage. High-pressure sodium lamps are widely used in greenhouse production, but they require maintenance for peak efficiency. Verify proper types and ratings. After visual inspection, many growers find that some lamps in their greenhouse either aren’t operating or aren’t doing so at full brightness. … If the sodium light does not include a photocell, ignore this step because the light should be in working order. Most of these lights last a long time, so 2-1/2 yrs is really nothing in the terms of how long they should go without a problem. The power factor of a normally functioning lamp with a new bulb is 0.97 to 0.98. Also works for Metal halide. Defective BallastIf a new bulb, ignitor, and/or capacitor do not make the fixture work, then the ballast is probably defective. Visually inspect the lamp for proper connections and contacts. High pressure sodium bulbs ("lamps") are an old standby for lighting that's still used today in spite of so much talk of LED lights. They are commonly used in public parking lots, roadways, and other security areas. It takes the same amount of time to replace the ballast as it does to replace the capacitor (40 to 60 minutes to take the lamp down, replace the components and rehang). Common high intensity discharge light wattages used for parking lot and area light fixtures range from 100 watts to 1000 watts. Outdoor sodium lights are either low-pressure or high-pressure lighting to illuminate large areas with bright light. So a higher wattage light is going to give you more light on your specified area than a lower wattage light. 400w, 600w, 1000w. Refer to wiring diagram on ballast label for proper component connections (typical connections illustrated above). A box from a macaroni-and-cheese kit or other dinner side dish works well. Step 2 Check the specifications on the ballast. PARsource offers CSA, UL & ETL listed products, Phantom Commercial DE Attached Light System, PARsource SE Commercial Electronic Ballast, GE Arize™ Greenhouse Pro Photoperiod LED Lamp, T5 FLT Commercial Fluorescent Lighting Systems, SE Hortilux Premium Horticultural HID Lamps, SE GE Lucalox PSL Premium Horticultural HID Lamps, PARsource Color Correcting Safety Glasses, Autopilot PX2 Digital Lighting Controller, Autopilot Analog to Digital Conversion Module V2, Supplemental Lighting Guidelines for Young Plants. A magnetic ballast, in series with an AC current voltage source, supplies the lamp with a near-constant stream of current.Sodium ballast lamps are widely used in streetlights and security lighting, as well as applications requiring high color rendering. light fixture high pressure sodium, I've change 3 different light bulbs, but non of them comes on, tester sounds that has power. This type of lighting is effective as a security light with a photocell to illuminate at dark and remain on until daylight. Wait about 10 minutes to see whether the light illuminates. The HPS light fixture was developed by General Electric and made its debut in 1964. Observe the interior gas tube for any signs of discoloration. … HPS lamps may be dim if the supply voltage is low. While upgrading to LED provides a lot of benefits, high pressure sodium (HPS) lamps still provide some of the most efficient lighting available. The fixture lock may be on either side of the fixture depending on the brand and model of light. A very first appearance at a circuit diagram could be confusing, however if you could review a subway map, you can check out schematics. With your hand, press the fixture lock on the side of the fixture and swing the door open. I purchased and installed a new 100-watt high-pressure sodium lamp (and left the new sensor in) and it was like a new light … Wrong Ballast Like Metal Halides, High Pressure Sodium lights are omnidirectional, which wastes light and makes them less efficient. Capacitors also can partially fail. I'd try cleaning the sensor with a damp cloth and see if that gets you going again. High-pressure-sodium lamps and metal-halide lamps do not exhibit obvious symptoms when power is off. 2. If you’re not electrically inclined, work with your lighting manufacturer or an electrician to diagnose problems and replace component parts. If the bulb is black inside the glass or broken, you need to replace the sodium bulb. Sunlite 03620-SU LU150/MED High Pressure Sodium Light Bulb, 150 Watts, ED17/MED, Medium Base (E26), ANSI Code S55, 15000 Lumen, 20000 Life Hours, Clear, 2100K 4.4 out of 5 stars 424 $15.99 $ 15 . Defective Ballast Failed CapacitorThe second most common failure is the capacitor. The door will make an audible snapping noise when it closes fully. For safe operation: These lamps reduce growth and increase electric consumption. Since high-pressure sodium lamps have mercury and sodium inside it needs to utilize a high-voltage pulse to ignite the lamp, which the ignitor provides. How to repair 1000w High pressure sodium discharge light. Provides focused illumination for outdoor use in residential and light commercial applications. HPS fixtures with a partially failed capacitor have a lower light output, a lower power factor and reduced efficiency. Dimming is limited to about 50% of full light output. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.. Two varieties of such lamps exist: low pressure and high pressure.Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are widely used. high pressure sodium light fixture troubleshooting, has power but light bulb doesn't come on? Place a ladder or step stool near the light, if need be, to acquire height to reach the light fixture. HPS fixtures quickly picked up speed and by 1970, many parking lot lights and street lights were adopting the new lighting technology. She loves writing about careers for busy families as well as family oriented planning, meals and activities for all ages. If you’ve invested in the lamps, you should be sure they are running effectively. Replace sodium bulbs with either the same type of bulb, which is either low-pressure or high-pressure. This failure cannot be measured with a standard volt-ohm meter. High Pressure Sodium Applications HPS lamps, unlike most metal halides, do not require enclosure except to prevent moisture from accumulating on the lamp. Sunlite 03620-SU LU150/MED High Pressure Sodium Light Bulb, 150 Watts, ED17/MED, Medium Base (E26), ANSI Code S55, 15000 Lumen, 20000 Life Hours, Clear, 2100K 4.3 out of 5 stars 287 $13.91 $ 13 . HPS light costs differ based on the particular fixtures, but are cheap compared to LEDs. Look for broken arc tube or loose metal parts. Repeat this process for the additional connection in a wire nut. Field wiring connections should only be made by qualified personnel. If the tube is black, the bulb is definitely burned out. If the MH lamp starts and a new HPS lamp does not start, the ignitor probably needs to be replaced. AgeOld bulbs fail by cycling on and off. A less common problem is failure of the ignitor. It’s easy to screw a new bulb into the fixture. Confirmation of a partially failed capacitor can be made by measuring it with a capacitance meter ($20 to $80). New capacitors are about $25. Some models do not include a photocell and switch on and off manually. High Pressure Sodium Bulb has Short Life or otherwsie is Not Quite Right: You can have the right wattage but still have the wrong bulb for the ballast. An ignitor is used when high pressure is necessary to strike an arc through certain materials and get the temperature up very quickly inside it. This meter must be connected in line with the lamp, and the light should be at full brightness before you take the measurement. Metal halide lamps do not require an ignitor to start, so the test for a failed ignitor for an HPS lamp is to screw in a metal halide bulb of the same wattage and see if it starts. These ballasts use compressed high-pressure sodium to produce an arc to generate heated energy to for the lamps fixtures and enable lighting of High-Pressure Sodium Lamp derived installation. I have a high pressure sodium vapor lamp that is going onand off. If it is, use a meter capable of measuring the power factor of the lamp, such as the Kill-A-Watt meter (about $30). High-pressure sodium lamp based ballasts are a great way of limiting or controlling the amount of input that is consumed by the lighting installation of high-pressure sodium lamps it's fixed to. If screwing in a new bulb does not solve the problem, the lamp must be taken down and disassembled. Close the fixture door. High pressure sodium ballasts for lamps provide stable current use of the inductive reactance of the ballast, and other pipe lit work. If the light comes on and then goes off a few minutes later, first replace the lamp. Clean any corrosion off connections with a wire brush, twist the wires together and replace the wire nut. Turn off supply voltage at breaker before accessing fixture Wiring Compartment. Mary Lougee has been writing for over 10 years. Placing a cardboard box over a photocell eye blocks light from the eye to trick it into assuming it is dark. Twist the wire nut counterclockwise while pulling it out to remove it. For any school, hospital, or retail facility, energy is a huge cost driver. Here, the fixture starts and runs continuously but comes up to only 10-60 percent of its maximum brightness. Ideal for walkways, yards, patios, play areas and driveways creating an inviting exterior … 2. Observe the sodium bulb for darkness inside or breakage. If the capacitor is enlarged, it has failed and needs replacement. Sodium Lamps were first produced commercially by Philips in Holland in 1932. high pressure sodium ballast wiring diagram – A Beginner s Overview of Circuit Diagrams. Here’s a list of the most common HPS lamp failures — and a little technical savvy to diagnose and repair them. Five to 10 percent of the HPS lamps we’ve purchased in the past 25 years have had partially failed capacitors. Petaluma CA 94954       P: 855-727-5483 | F: 877-262-6050 |  Email Us. High Pressure Sodium Flood Light General Purpose Outdoor HPS by Lithonia Lighting. Place a ladder or step stool near the light, if need be, to acquire height to reach the light fixture. High pressure sodium continued If water is the culprit, why then the center light stays eluminated and the left and right mounted lights from center are the only lights turning off and on. Copyright © 2020 PARsource - Commercial Greenhouse Lighting Solutions. Fixtures with bulbs nearing the end of their lifetime have power factors of 0.90 to 0.94. Turn on the power at the switch or breaker box. ballast. Ballast replacement kits cost $130 to $150, and it can be cost effective to replace the ballast rather than purchase a new lamp. A big driver behind their use is their… Ballast for the lamp to provide a high starting voltage, lamp conduction. How to Install a Shower Light Replacement, How to Replace Recessed Residential Lights, How to Check If Garage Door Sensors Are Working, How to Replace a Bulb for Frigidaire Ice Maker in a Door. high pressure sodium ballast output voltage use high pressures of sodium, in an excited state, to generate light. This action enacts the transformer to illuminate the bulb as it does at dark. Place a small cardboard box over the photocell eye so the box rests on the top of the fixture. Update: is not in a photo cell, just in a clock, She holds a Bachelor's Degree with a major in Management and a double minor in accounting and computer science. It this doesn't correct the problem, then the sensor would need changing. 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