Albin O. Kuhn Library & Gallery - Staff Wiki

Procedures - Hygrothermograph Monitoring

Temperature/ Humidity

Aim points: 70 degrees F, 45% Relative Humidity.  Notify Chief Curator of divergence from aim points, especially large variations of instability.

Locations of monitors:

  • Gallery

  • Reading Room (104)

  • 103/scanning room 

  • 038/Basement compact shelving

Charts: Change once a week.  File used sheets in cabinet.

Calibrate: With sling psychrometer, calibrate hygrothermographs monthly (see:

Hygrothermographs: 5020 Hygrothermograph with battery operated 1-7-31 day clock


  • Charts: Order on annual supply request from Scientific Sales:

  • Order blue pens through a regular supply request to Christina.

  • Order AA batteries through Christina as well.

  • Order green and red pens through Graphic Controls (item numbers 30683828 and 30683851)

Cold Storage Vault & Antechamber:

The cold storage in managed by a campus contractor called Siemans.  They are in charge of ordering the pens.  If there is any problem with the machines call the physical plant at:  x52550 and they will contact Siemens.  There are pens and charts located below the machines, you can change both of these yourself.  Set points are written on the meters.

Albin O. Kuhn Library & Gallery . University of Maryland, Baltimore County . 1000 Hilltop Circle . Baltimore MD 21250
(410) 455-2232. Questions and comments to: Web Services Librarian