Here is a fun one.
TLDR: How dangerous is it for a Christie CP2200 to lose CP power (but not lamp power) when the unit is on?
We have two Middle Atlantic MA-UPS2200R that service the booth. One for the DCinema audio rack (minus the surround amps), and one in the Christie CP2200 pedestal for Doremi + Christie CP etc.
I learned of a really nasty failure mode in the audio rack when we would arrive to work and the UPS and rack was off. For a few days we did not know the cause cause the UPS did not complain when turned back on, but within 24h it would fail to off again. Never was in the booth to witness and luckily happened during non-film events, so unsure if it threw any alarms before doing so.
In the end it was of course a dead battery pack and the replacement resolved it. But I'm very uneasy about this NO NOTICE ups failure mode. I would have thought it should fail to bypassing the batteries and just performing power distribution alone (while blaring an alarm).
I tested the cells in the UPS in the projector stand, they are on their way out and showing some physical signs of age too, but it hasn't quit on us yet.
I requested 2 replacement battery modules from mangement at the time but only got 1 for the actual failed UPS. I've made them promise to get me the other before SXSW, but how worried should I be until then?
I'm tempted to buy 4 cells myself and refurb the old module, just to have it in the booth just in case, use it until I get the replacement and then take the cells home for my own UPS servicing next time.
TLDR: How dangerous is it for a Christie CP2200 to lose CP power (but not lamp power) when the unit is on?
We have two Middle Atlantic MA-UPS2200R that service the booth. One for the DCinema audio rack (minus the surround amps), and one in the Christie CP2200 pedestal for Doremi + Christie CP etc.
I learned of a really nasty failure mode in the audio rack when we would arrive to work and the UPS and rack was off. For a few days we did not know the cause cause the UPS did not complain when turned back on, but within 24h it would fail to off again. Never was in the booth to witness and luckily happened during non-film events, so unsure if it threw any alarms before doing so.
In the end it was of course a dead battery pack and the replacement resolved it. But I'm very uneasy about this NO NOTICE ups failure mode. I would have thought it should fail to bypassing the batteries and just performing power distribution alone (while blaring an alarm).
I tested the cells in the UPS in the projector stand, they are on their way out and showing some physical signs of age too, but it hasn't quit on us yet.
I requested 2 replacement battery modules from mangement at the time but only got 1 for the actual failed UPS. I've made them promise to get me the other before SXSW, but how worried should I be until then?
I'm tempted to buy 4 cells myself and refurb the old module, just to have it in the booth just in case, use it until I get the replacement and then take the cells home for my own UPS servicing next time.
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