325, 325Q Hygrograph

A hygrograph uses a length of hair to record changes in air humidity.
Operating range: 0 to 100% RH at an accuracy of +/- 3% between 20 and 100% RH
It is fitted with either a quartz clock  or clockwork motor.

Mechanical drum clock  acc. to Din 58658
revolution cycle           Model 325             day 25.6h
                                                         week 176h
Electronic Quartz clock
revolution cycle            Model  325Q         day 25.6h
                                                         week 176h
                                                         month 783h
Please specify clock type when ordering.

Recording drum
drum material: plastic
chart paper holder material: brass nickel plate
diameter 93.3mm
high       93mm
write range 80mm for each measuring element.
Accessories:
60 sheets of week chart paper
2 fibre pens
Battery Mignon (AA) 1.5V (R6) (for electronic quartz clock)

Dimensions
Length 290 x breath 145 x height 190mm
Weight 3kg
Please Contact us for Price