Accession No

5981

Brief Description

portable temperature indicator, by Cambridge Instrument Company Ltd., England, circa 1948

Origin

England; Cambridge

Maker

Cambridge Instrument Company Ltd.

Class

electrical

Earliest Date

1948

Latest Date

1948

Inscription Date

Material

metal (cast metal alloy, brass, copper; steel); glass; plastc; rubber

Dimensions

length 200mm; width 200mm; height 170 mm

Special Collection

Provenance

Donated on or before 05/11/2003.

Inscription

Batch No. 6845 DEGREES CENTIGRADE Res. 132.6 OHMS
Ext. 2.5 OHMS
AUTO COMPENSATED COLD JUNCTION
CAMBRIDGE INSTRUMENT CO. LTD. ENGLAND

Description Notes

black cast alloy tempertature indicator with pivoting metal handle. There is a glazed window at the front of the instrument to reveal the pointer and marked scale. There are two terminals with screw caps on each side of the instrument. There is no zero adjustment on this model.

This instrument dates from around 1948, this is evident in its lighter cast alloy case and inclusion of the Auto compensated cold junction, which on later models than this was abreviated to ACCJ. Aquired in conjunction with Wh. 5979 and wh. 5980 to illustrate the instruments development.

Condition good

References

Events