• Current opened records

  • Clockwork Aspirated Psychrometer Mk3

Archive
Bib No.:
  • 631922
Level:
  • Item
Archive Reference:
  • MET/4/3/129
Creator:
  • Casella
Date:
  • No Date
Extent of unit:
  • Box Length 58cm Height 13cm Depth 12cm
Description:
  • Made by Casella of London. This clockwork aspirated psychrometer is used to measure humidity. It consists of two ducts that contain the Assmann type thermometers and a detachable motor driven fan in a polished chrome case, which is wound up using the keys provided. The clockwork motor runs for at least 10 minutes when wound up. It has a grey painted wooden box with a metal plate with the makers name, Casella, London, serial number MO1133/71. The Meteorological Office MO logo and the reference number MET1709. It has a leather strap handle and metal fasteners.
Media Type:
  • Artefact
Language:
  • N/A
Conditions Governing Access:
  • Open
Conditions Governing Reproduction:
Owning Organisation:
  • Met Office
Location:
  • Archive Exeter
Collection:
  • Archive Collection
Status:
  • Reference Only
Location (Room/Bay):
  • W07.C2

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