Heart Monitor

Maker and role
Elema Jarhin, Manufacturer
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Object detail

Accession number
F473.2001
Maker
Elema Jarhin
Description
Rectangular cream coloured Heart Monitor with a hinged lid and metal clasps. Contains a pen recorder with roll of about 50 mm wide paper type visible through glass panels at front and at top. At the side there is a slots with a serrated edge for the paper to come through. Control panel knobs or switches at tophave no labelling (except for 1 switch which has abbreviated positions indicated, but none in English). The recorder ink bottle is labelled and has various installation and precautionary instructions. Inside cover/lid there is a lead selector switching diagram, which indicates the use of a Galvanometer for small currents.
Marks
Elema Jarnh / Stockholm Sweden Maker's Mark
GR Ltd Logo
General Radiological / Limited. / London Maker's Plate
Media/Materials
Processed Material/Metal/Alloy/Steel
Credit Line
Elema Jarhin. Heart Monitor, F473.2001. The Museum of Transport and Technology (MOTAT).

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