Dan,
Have you contacted Cole-Parmer to see if they have replacement hair
bundles for your unit?  Our museum does not have the model you speak of
but we purchased a few extra bundles in the past.  It is a pretty
straight forward task to replace them.  Most bundles are attached to a
bar at top & bottom that are then attached to the machine by screws.  It
is most important to make sure the the bundle is not touched by exposed
hands since transferred oils, dirt, etc. can effect the readings.  Also,
I beleve the hair they use is treated in some way so to use a co-workers
hair most likely would not give you correct readings.
That all being said I would also recommend that you might want to change
to electronic dataloggers.  You can find good ones for much less money
then a new mechanical hygrothermograph.  About three years ago I
purchaced 20 ONSET "Hobo" brand dataloggers for the price of two
mechanical ones & have been very happy with them.  The ones I bought
also have the added feature of recording light levels.  Their choice in
models has improved since.  There are other good brands out there if you
google dataloggers.
Peter Lundskow 
Chief Conservator
Indiana State Museum
Indianapolis, IN

-----Original Message-----
From: Museum discussion list [mailto:[log in to unmask]] On
Behalf Of Dan Bartlett
Sent: Tuesday, December 13, 2005 3:22 PM
To: [log in to unmask]
Subject: [MUSEUM-L] Rogaine for Hygrothermograph?


Our Cole-Parmer model 8368-00 hygrothermograph has lost almost as much
hair as I have.  Can I just ask one of my collegues to donate some
strands of hair, install them and then calibrate the thing with a
psychrometer, or is it really more involved than that and I need to send
it off somewhere (like the dumpster)?  If I need to send it somewhere,
can someone make a suggestion?

Thanks,

Dan Bartlett
Curator of Exhibits
Midway Village & Museum Center
Rockford, IL

=========================================================
Important Subscriber Information:

The Museum-L FAQ file is located at
http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed
information about the listserv commands by sending a one line e-mail
message to [log in to unmask] . The body of the message should
read "help" (without the quotes).

If you decide to leave Museum-L, please send a one line e-mail message
to [log in to unmask] . The body of the message should read
"Signoff Museum-L" (without the quotes).

=========================================================
Important Subscriber Information:

The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes).

If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).