THE BODY OF THE INSTRUMENT IS ?XED, WITH A LEANING OF 60°. CORRECT REFRACTED INDEX

AND SUGAR PERCENTAGE CAN BE READ DIRECTLY IN THE ?ELD. IT CONSISTS OF ABBE'S DOUBLE

PRISMS WITH THE THERMOSTAT, COMPENSATOR, TELESCOPE MIRROR, LIMB, GRADUATED

SECTOR, READING MAGNI?ER AND RADICAL ARM WHICH SPACE (ABOUT 0.1 MM ) BETWEEN

THE ADJOINING FACES OF THE PRISMS. COMPENSATOR CONSISTS OF THE AMICI PRISMS WHICH

SERVE FOR READING THE LINE OF ACH. SEPARATION.

TECHNICAL DATA

 MEASURING :   ND. 1.3000 TO 1.7000 (RE?ECTING INDEX)

 MEASURING ACCURACY  :  +0.001 BY DIRECT READING +0.0001 BY ESTIMATION

 SUGAR % IN SOLUTION  :  0 TO 95% (+ 0.5 %)

 DISPERSION :  N.D. 0.0005%