dimmer switch voltage readings


Old 12-28-11, 07:08 PM
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dimmer switch voltage readings

I've installed a lutron dimmer switch for a ceiling fixture (fixture not yet installed) and i'm getting a voltage reading at the point of use of 32 when the switch is off and 98 when the switch is on. is this low reading typical for dimmers? with a regular switch installed i get the usual 0 when switch is off and 119 when switch is on.
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Old 12-29-11, 03:41 AM
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You are getting "phantom" voltage reading from a digital meter, which is normal. Get an analog meter and the readings will be accurate. Is this a 3 way set up? where are you touching your probes? You should be using line to neutral or ground.
Old 12-29-11, 03:50 AM
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Try setting your meter to direct current.
Most dimmers output a modified sine wave and play havoc with digital meters which is why chandler's suggestion is a good one.

Also, some dimmers don't have an actual switch for the off position and may bleed some voltage when in the "off position.
Old 12-29-11, 08:21 AM
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thanks for the responses guys...
It's a single pole setup, and i'm taking the reading between line and neutral. I will try a dc reading and report back.
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