- Clockwork Aspirated Psychrometer Mk2
Archive
Bib No.:
- 631924
Level:
- Item
Archive Reference:
- MET/4/3/131
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 wooden box, in a rather battered condition, held closed with string. The box has written on it British Antarctic Survey, BAS Cambridge. The instrument has a metal plate on the top, by the hole for the key to wind it up, with the makers name, Casella, London, serial number 680/55. The Meteorological Office MO logo and the reference number MET REF 869.
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