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    AMTLighting
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Sensor Classic - Lights go out, then come back

Hi folks, been having a weird issue that i suspect might be one of my Sensor Classic racks that controls the house lights in my venue.... This occurs when the lights in that rack have been off for a period of time, and then are brought  back up to full. The lights will go out for a second, then come back up. The first time I really noticed was when a guest LD had taken control of my system from a GrandMA2 via sACN, to an ETC 4-port gateway (firmware version 7.1.0.9.0.5). I was able to recreate the issue multiple times, both from own console (Eos Ti v3.1.3 b8) via Net3 through the same gateway, and my DMXcat (bypassing the gateway). I have also noticed the same thing happening when I take control of the house lights from our Unison wall stations. I haven't had a chance yet to watch the dimmer rack at the time the issue occurs.

Has anyone experienced something like this before? Any thoughts on what else I might be able to check or look for? The dimmer racks here are 25 years old, so I suppose it's not out of the realm of possibility that the control electronics are starting to fail just from age.

Thanks in advance for your help!

Parents

  • I’d start with air flow to the rack. Lights might come on and then blink off and back on if: 

    filters not clean

    CEM air flow sensor falling out of calibration slowly 

    rack fan delay in spinning up to speed

    you could try to test by putting a fan in front of the rack with the door open and blowing into the CEM. Then bring the house up and see if you still have the same issue

Reply

  • I’d start with air flow to the rack. Lights might come on and then blink off and back on if: 

    filters not clean

    CEM air flow sensor falling out of calibration slowly 

    rack fan delay in spinning up to speed

    you could try to test by putting a fan in front of the rack with the door open and blowing into the CEM. Then bring the house up and see if you still have the same issue

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