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General description : Mechanism machined & fabricated from high quality brass, polished and lacquered. Supplied with fabricated, vented sheet steel cover finished in white enamel with convenient carrying handle.
Humidity section :
Range : 0 to 100%
Accuracy : +/- 3% between 20 & 80%
Sensing element : Specially treated human Hair
Recording section : (Either)
Battery operated quartz clock with simple mechanism for changing rotation from daily to weekly or, Clockwork clock - Daily or weekly rotation
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Recording is effected by easily changed fibre tipped pen.
Temperature section :
Range (either) :
0 to 50 degrees C
or
-5 to 55 degrees C
Accuracy : +/- 0.5 degrees C
Sensing element : Bi-metalic coil (corrosion protected)
Ordering Information:
FM6500 Thermohygrograph (add Daily, Weekly and specify desired temperature range and clock type at time of placing order).
FM6500/1 Pack of 100 daily charts
FM6500/2 Pack of 100 weekly charts
FM6190 Humidity Pen - Red Ink - Long
FM6195 Temperature Pen - Black ink - Short
Other ranges and types made to order.
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Fairmount thermohygrograph with lid open showing the quality of the mechanism - double click on image for high resolution picture.
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This comapct single height instrument neatly combines both temperature and relative humidity records on one standard height chart thereby allowing installation inside a standard size Stevenson Screen if required.
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