This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Until a company comes out with a monitor that can, say, be inserted into the soundboard/rim/frame to monitor MC, controlling the RH is about all we have. Since the humidistat is available in different RH settings, it seems only reasonable that an adjustable one has its place. In Northern California, where the humidifying part of the DC system is rarely installed, an adjustable humidistat would be ideal. A simple monitoring over a period of time with a hygrometer with a min/max memory would give you the information needed to choose the setting that has the system cycling on for the minimum amount required. David Love davidlovepianos@comcast.net -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of David Patterson Sent: Sunday, April 24, 2005 7:30 AM To: richard.ucci@att.net; pianotech@ptg.org Subject: RE: humidistat Hi Richard, The adjustable humidistat idea has a few flaws, in my opinion. It implies that relative humidity is the key issue for the piano, and reinforces this focus on RH, instead of EMC. Technicians often ignore the end result [stability from Equilibrium Moisture Content] in favour of the current situation [relative humidity at this moment, what is the system doing right now?]. The "adjustable" idea plays to this misconception a bit. I have big question marks with: the amount of adjustment feasible, actual means of accurately triggering an adjustment to the cycling point within the device, and its ability to then achieve those cycling results within the whole system. Then, you gotta wonder whether we really want another variable in our "detective work". Sometimes stabilising an instrument is worked on over a long period of time. When we are baffled by our findings, we become suspicious of what happened while we were gone. Particularly in a grand, I see many points of trouble but not much gain to a tweakable control. As it is, it takes fully three spread-out visits to realise a single provable change on a piano -- one to change something, one for detailed tuning work at A440, and another to measure and see what happened. David Patterson, RPT Patterson and Company Exclusively Dampp-Chaser Piano Life Saver Specialists for 15 Years -----Original Message----- From: richard.ucci@att.net [mailto:richard.ucci@att.net] Sent: Saturday, April 23, 2005 7:44 PM To: pianotech@ptg.org Subject: humidistat List, Is Dampp-chaser planning on bringing out an adjustable humidistat like the one Moisture King has? Also , can theirs be used with a dc system? RU/UP ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/73/c0/aa/bf/attachment.htm ---------------------- multipart/alternative attachment--
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