In cases when very high accuracy is required in combination with the “zero” thermal expansion coefficient, the RESOLUTE encoders can be used with the absolute linear RELA scale <\/b>, this scale is made of Invar, an iron-nickel alloy with a low coefficient of expansion .\n<\/p>\n
\nDue to the unique accurate Renishaw grading process, the RELA range has a certified accuracy of \u00b1 1 μm for lengths up to 1.13 m, certification and calibration of the accuracy of each line is performed in accordance with international standards.\n<\/p>\n
\nThe invar thermal expansion coefficient is approximately 0.6 μm\/m\/\u00b0C within the temperature range from 0 to 30 \u00b0 C. In order to solve the problems with very high requirements for accuracy, one can take into account the influence of this small factor, for each ruler its exact value is determined, which is indicated in the calibration certificate.\n<\/p>\n
\nIn addition to the very low coefficient of thermal expansion, Invar products are exceptionally strong. This makes it possible to produce rulers with a much smaller cross-section as compared to brittle glass rulers. At the same time with invar rulers it is easier to handle during transportation and installation, without risking to break them.\n<\/p>\n
Specifications<\/b><\/p>\n In cases when very high accuracy is required in combination with a “zero” thermal expansion coefficient, the RESOLUTE encoders can be used with the absolute linear scale RELA (from Invar – an iron-nickel alloy with a low expansion factor). Due to the unique, grades by the Renishaw RELA range have a certified accuracy of \u00b1 1 μm for lengths up to 1.13 m! <\/p>\n","protected":false},"featured_media":26045,"template":"","meta":[],"product_cat":[1927],"product_tag":[],"producers":[2203],"_links":{"self":[{"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product\/26042"}],"collection":[{"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product\/26042\/revisions"}],"predecessor-version":[{"id":47017,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product\/26042\/revisions\/47017"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/media\/26045"}],"wp:attachment":[{"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/media?parent=26042"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product_cat?post=26042"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/product_tag?post=26042"},{"taxonomy":"producers","embeddable":true,"href":"https:\/\/test.koda.ua\/en\/wp-json\/wp\/v2\/producers?post=26042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
\n Built-in LED head position indicator <\/td>\n \t Yes<\/td>\n<\/tr>\n \n Measuring range, m:<\/td>\n from 0,07 to 1,12<\/td>\n<\/tr>\n \n Length, m:<\/td>\n \u2013 optic scale RELA \u2013 from 0,08 to 1,13<\/td>\n<\/tr>\n \n Resolution, nm:<\/td>\n \t1, 5, 50, 100<\/td>\n<\/tr>\n \n Scale step, μm:<\/td>\n \t30<\/td>\n<\/tr>\n \n Max speed, m\/s:<\/td>\n \t100<\/td>\n<\/tr>\n \n Clearance between reading head and optical scale, mm:<\/td>\n \t0,8 \u00b1 0,15<\/td>\n<\/tr>\n \n System accuracy at 20 \u00b0 C, μm:<\/td>\n \t\u2013 \u00b1 1 (on length up to 1,13 m) <\/td>\n<\/tr>\n \n Scale option:<\/td>\n \t\u2013 mechanically fastened – glued\n <\/td>\n<\/tr>\n \n Coefficient of thermal expansion, μm\/m\/\u00b0\u0421:<\/td>\n \u2014 0,6 (at temperature from 0 \u00b0C to 30 \u00b0C) \u2014 \u043c\u0435\u043d\u0435\u0435 1,4 (at temperature from 30 \u00b0C to 100 \u00b0C) <\/td>\n<\/tr>\n \n Supply voltage, V:<\/td>\n \t5 \u00b1 10 %<\/td>\n<\/tr>\n \n Current consumption (with load), mA:<\/td>\n \t250<\/td>\n<\/tr>\n \n Protocol:<\/td>\n BiSS, FANUC, Siemens DRIVE\u2013CLiQ, Mitsubishi, Panasonic\n <\/td>\n<\/tr>\n \n Material:<\/td>\n \u2013 optical scale RELA – highly stabilized, low-expansion iron-nickel alloy (ZeroMet. – Invar)
\n <\/tr>\n\n Cable, length, m:<\/td>\n \t0.5, 1, 1.5, 3, 5, 10 (connector type D\u2013sub (9\u2013 or 15\u2013PIN), free terminal (without connector), connector compatible with FANUC, connectors LEMO and S12 for interface DRIVE\u2013CLiQ)<\/td>\n<\/tr>\n \n Mass, g\/m:<\/td>\n \u2013 optic scale RELA \u2013 184
\n <\/tr>\n\n Temperature, \u00b0\u0421:<\/td>\n \u2013 process \u2013 from 0 to + 80
\n <\/tr>\n\n Degree of protection:<\/td>\n \tIP64<\/td>\n<\/tr>\n \n Impact (in non-operating state, 6 ms, half-sinusoidal impulse), m\/s 2:<\/td>\n \t1000<\/td>\n<\/tr>\n \n Vibration (in operation mode, at 55 – 2000 Hz), m\/s 2:<\/td>\n not more than 300<\/td>\n<\/tr>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"