Hello Marcel, Allow me to clarify this a little. Bill is correct, but maybe I can add a bit more to this discussion. Our current supply of humidistats average 51% for wet, 45% for normal and 39% for dry. We feel 55% is a bit too wet for a piano. Moving the humidistat one way or another is for fine tuning. It is best to apply a wet to a gray market piano rather than try and "stretch" a normal humidistat. There is a bit of confusion in our literature about wet and dry settings. The actual averages are dependent on the characteristics of the switches we receive from our supplier. There is batch variability that cannot be completely managed through our calibration process. Thus older literature may have wet at 50% and dry at 40%, if I remember correctly. These modest changes really don't compromise our technical approach, but can lead to some confusion among technicians when comparing values we have listed in the literature. I hope this helps. All the best, Roger Roger Wheelock, VP Dampp-Chaser Corp. ISO 9001:2008 Certified ----- Original Message ----- From: Marcel Carey To: Pianotech List Sent: Monday, July 26, 2010 10:20 AM Subject: Re: [pianotech] "Gray Market" Kawai?? ------------------------------------------------------------------------------ Bill wrote <Paul, Use the "wet" humidistat to start. It's calibrated to achieve 51% RH (not 55%) and it is the best solution. Then, if that still doesn't achieve a high enough level for you, consider moving the humidistat slightly further from the humidifier. That adjustment is only meant for fine tuning, though, not a major change. That's why they have the wet humidistat. William R. Monroe> Isn't this the opposite??? The wet one would be made to keep humidity at 55% and the normal one at 50% ? Marcel Carey ------------------------------------------------------------------------------ Jeux Messenger : mettez vos amis au défi! Jeux Messenger! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100726/d0a6b932/attachment.htm>
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