Oak Bluffs, MA old classifieds archive and funnies > By Year
> 2008
> Friez 594 hygro thermograph
Friez 594 hygro thermograph
Friez Instrument 594 Recording Hygrometer/Thermograph
* Recording Thermometer/Hygrometer
* Records temperature (from 10-110F) and relative humidity (from 0-100%) on a drum mounted chart
* Wind-up Clock mechanism may need repair
* Friez/Bendix Aviation Corp
Familiar unit seen in many museums. Records temperature (from 10-110F) and relative humidity (from 0-100%) on a drum mounted chart. Both scales can be fully calibrated by adjusting the mechanical linkages. This unit runs a bit slow, about 1/2 day on the week, so the clock mechanism may need lubrication.
We have ink, but no original charts. There are photocopies of the lightly used original 7 day chart that was found with the unit.
Unit is 12" wide, 9" high, 6" deep.
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