JD20 0.2µ m Precision Optimeter

Features

->JD20 adopts new screen technology, equipped with reading magnifier to get uniform field brightness and clear image;

->JD20B adopts CCD digital image processing technology,display measuring value in digits with high measuring resolution;

->High measuring accuracy, stable and reliable data, realize convenient and quick measurement for precision parts with small dimension;

->Optimized structure design, small overall dimension, convenient for transportation.

Technical Parameters
Range of measurement: 0-180mm
JD20 Minimum graduation: 0.2 µ m
JD20B Resolution : 0.02 µ m
Indication range: ± 0.02mm
Indication error
± (0.05+0.0025A) µ m (of which, A= Indication.unit:µ m)
Indication iterancy: 0.02 µ m
Measurement force: 1.20N ± 0.2N
JD20 Fine tuning range of graduation image: ± 5 graduations
JD20 View width of every graduation: 1. 7 mm
Fit outside diameter of measuring lever and measuring cap:
¢6g6
Fit inside diameter of measuring cap: ¢ 6h7
Ambient environment of the instrument service
Room temperature: 20°C ± 3°C
Relative humidity: Not more than 60%
Overall sizes of the instrument (mm):
JD20 230 x 320 x 820
JD20B 230 x 320 x 750
Mainframe weight: 30 kg
Worktable
Seven-grooved worktable: used for verification of thick block gauges and workpieces
Spherical grooved worktable: used for verification of thin block gauges and workpieces
Plane worktable: used for measurement of sphere diameters Moving bracket of block gauge: used for laying and moving the standard and the measured block gauges.