The high accuracy and measuring steps of 10 nm and less permit use of the CT 2501 in gauge block calibration. Thanks to its generous measuring range — much larger than with inductive length gauges — the number of reference standard blocks required can be reduced significantly.
A CERTO length gauging system comprises:
- CT 2501 Length Gauge - ND 281 Display Unit - Control box - Gauge stand - Ceramic suction plate as support surface
Accuracy The total error of the CT 2501 over the entire measuring range of 25 mm lies within ± 0.1 µm at ambient temperatures between 19 and 21 °C and with temperature fluctuations of ± 0.1 K during measurement.
When the CERTO is used with length error compensation, e.g., in conjunction with the ND 281 Display Unit, HEIDENHAIN guarantees a total error of ± 0.03 µm over the 25 mm measuring range.