You are watching: How to tell if a high pressure sodium bulb is bad
Step 1 - eliminate the Lamp
Remove the lamp. Make certain you rotate off every power an initial to safely eliminate the desk lamp from the location.Step 2 - Visually inspect the Lamp
Visually check the lamp for ideal connections and also contacts. This will certainly eliminate any kind of visual or connection worries with your high-pressure sodium ballast.Step 3 - examine Accessories
Review the equipment on her lamp. Verify proper species and ratings. Pull out your owner"s manual to make certain the equipment are proper for your lamp. Generally, girlfriend should examine the choke, the starter, and also the phase correction capacitor.Step 4 - test the Voltage
Using your voltmeter, check the voltage. Test the input terminals for each lamp. (Refer to your diagrams. Often you can uncover the diagram on the ballast or the underbelly of the lamp. For recommendation purposes, deliver the diagram making use of a pen and piece the paper). Test the ballast intake side and then the ballast desk lamp side. These types of test can injury your voltmeter. Make certain you are using the appropriate high voltage probe once testing.Step 5 - check the Ballast
Remove the starter. Insert a brief circuiter into the lamp holder. Now you will need to turn the system on. Her ballast is working appropriately if you perform not see any type of signs of smoke or any humming and also buzzing sounds. You should perform this test for a minimum of one to two minutes.Step 6 - inspect the Short-circuit Current
Pull out the AC ammeter and also check the quick circuit present of the ballast. Throughout the test, the fuse have to resist the quick circuit current. Also, check the choke form and rating used. It should be proper for the ballast. If during the check you uncover the fuse blown, then you know that over there is a brief in the ballast.Step 7 - Reassemble
If everything tests out perfectly, reassemble the ballast and the desk lamp or lamp cover. Place your lamp ago in the initial housing and turn the electricity back on.
Tips and Warnings
If you room uncomfortable around electronic diagrams and devices, the is best to seek the advice the a professional.
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Proper safety and security precautions must always be adhered to when trial and error high-pressure salt ballasts. Constantly perform tests v the electrical power turned off.