CAT NO: DIDACTICNLE-Export-220298
Recording Thermograph- Engineering Lab Training Systems.
For accurately measuring and recording room temperature by means of pen on
printed chart. Chart may be retained as record.
Consists
of bimetallic coil of non-rusting material exposed to atmosphere at end
of a ventilated metal case, and connected to recording pen. As
temperature rises and falls, coli unwinds or winds, causing arm to move
vertically across chart which Is attached to metal drum with which is
fitted a seven days winding clock. It completes one revolution twenty
four hours. Charts are divided horizontally into hours sub divisions of
fifteen minutes and vertically Into degrees converting range of 10. to
50.C. Top of case is hinged at one end and is fastened at opposite end
by metal hasp. Case is finished in pleasing colour and has clear glass
window for observlnd temperature chart. Furnished with 50 charts, bottle
of special recording ink and directions for use.