Author Topic: Weird HPS lamp behavior  (Read 595 times)
Burrito
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Weird HPS lamp behavior « on: January 12, 2023, 08:18:52 PM » Author: Burrito
There is this General Electric M400R2 (250 watt HPS) fixture that started cycling a few months back. Weird thing is, sometimes the lamp not illuminate for hours at all then suddenly start cycling. It can sometimes hold the arc for long periods of time.
Anyone know what causes this?
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dor123
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Re: Weird HPS lamp behavior « Reply #1 on: January 13, 2023, 02:49:43 AM » Author: dor123
I've seen a behavior like this. HPS lamps that begins to cycles, initially cycle only seldom, and as the lamp gets older, it cycles more frequently until it cycles continuously.
Also, when the lamp is turned on, there is a period that it won't cycle for several mins.
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Re: Weird HPS lamp behavior « Reply #2 on: January 13, 2023, 03:41:07 AM » Author: AngryHorse
Anti-cycling ignitor could cause this?
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dor123
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Re: Weird HPS lamp behavior « Reply #3 on: January 13, 2023, 04:23:05 AM » Author: dor123
He don't wording well. He means that the HPS lamp inside the GE M400R2 lights for hours than suddenly cycles. Anti-cycling ignitors aren't common in the US.
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Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the international date format (dd.mm.yyyy).

I lives in Israel, which is a 220-240V, 50hz country.

flyoffacliff
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Re: Weird HPS lamp behavior « Reply #4 on: January 14, 2023, 02:03:58 AM » Author: flyoffacliff
I have seen anti-cycling HPS lamps here in the US. They turn bluish MV color near EOL.
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dor123
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Re: Weird HPS lamp behavior « Reply #5 on: January 14, 2023, 02:15:21 AM » Author: dor123
AngryHorse talked about anti-cycle ignitors, which are ignitors that stop working after few cycles, or not cycles at all, if they detects that the lamp is about to extinguish like this: https://www.lighting-gallery.net/gallery/displayimage.php?pos=-210767
« Last Edit: January 14, 2023, 02:19:47 AM by dor123 » Logged

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the international date format (dd.mm.yyyy).

I lives in Israel, which is a 220-240V, 50hz country.

AngryHorse
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Re: Weird HPS lamp behavior « Reply #6 on: January 14, 2023, 06:17:38 AM » Author: AngryHorse
Yeah, I keep forgetting US control gear is totally different from European gear!  ;D
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