Humidistat Accuracy

[Don]

Hi Terry,

D.C. does suggest that the humidistat be placed as close to the sound board
as possible. I don't ever run into a situation where I do a "rods only"
install, so obviously I have little expertise in that area. In my regular
full system installs I tend to get the controller within 1/4 inch of the
sound board (or closer if I can). I would tend to use a bottom cover in
your situation however, and drop the number of rods down.

Terry how far from the controller to the "nearest" rod?

Long shots follow:

1. I hate to say it--but....is it plugged in the "right way"? *grin*.

2. Is it possible that the controller you are using was once used to
control the room dehumidifier you mentioned? It's possible it is damaged. 

At 09:40 PM 12/2/02 -0500, you wrote:
>Boston GP-178 grand. No bottom cover. Six rods totalling 195 watts. Top of
humidistat is 2" below soundboard panel. No humidifier (room never gets
below 40% RH. No light kind. Left probe on humidistat for 20 minutes or so
- plenty of time for full equalization No, I am not aware of barometric
pressure influence on RH.
>
>Checked RH this evening. Right at 58% RH. Rods stone cold.
>
>Terry Farrell
>  
>----- Original Message ----- 
>From: "Don" <pianotuna@accesscomm.ca>
>To: "Pianotech" <pianotech@ptg.org>
>Sent: Monday, December 02, 2002 6:22 PM
>Subject: Re: Humidistat Accuracy
>
>
>> Hi Terry,
>> 
>> Please give us a bit more information. I think you have a Boston Piano?
>> Grand? Upright? Bottom Cover (or back cover)? How many dehumidifier rods?
>> How far from soundboard is Humidistat? How far is hum from humidifier? How
>> far is hum from drier bar(s)? Three light kind? Smart Bar? How long did you
>> leave your probe on top of the humidistat? Did you chart against barometric
>> pressure for a true R.H. reading?
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives
>
>

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Center of
the Arts

mailto:pianotuna@accesscomm.ca

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