Check the listing for details. keuffel esser compensating polar planimeter . Planimeter PPr - 1. Condition: Used. Listed at 21.40 USD. Planimeter Proportional ( PPr - 1 ) Designed to process variable value recording on chart disks of recording devices of the DR type . Due to which the average value radius is given .In principle , the devaice belongs to the type of rolling mathematical devices. Technical characteristics : Radius of the circle of the referenceline of the measuring parameter : Inital -22,5 ,Final - 115 .Arc radius of the time reference line 170 . Division planimetric drum - 0,01 rev . Dividing the price by lambda - 1 . Indoor operation with relative humidity up to 80% . Indoor operation at temperatures from 10 to 35 degrees . I will add aditional photos , write .
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