ISCO unit group

Precision-instrument makers and repairers

Precision-instrument makers and repairers make, calibrate, repair, maintain, adjust and install mechanical watches and clocks, and nautical, meteorological, optical and other precision instruments and equipment, and set them for correct performance. Tasks include - (a) repairing, cleaning and adjusting mechanisms of timing instruments such as watches and clocks; (b) adjusting timing regulators, using calipers, watch-rate recorders and tweezers; (c) cleaning, rinsing and drying timepiece parts, using solutions and ultrasonic or mechanical watch-cleaning machines; (d) testing timepiece accuracy and performance, using meters and other electronic instruments; (e) testing accuracy of meters, gauges, indicators, or other recording or controlling instruments to locate defective components and for conformity with standards; (f) calibrating instruments or scales, using hand tools, computer or electronic devices; (g) inspecting components, connections and drive mechanisms to detect defects; (h) assembling instruments and devices such as barometers, control valves, gyroscopes, hygrometers, speedometers, tachometers and thermostats; (i) testing, calibrating and adjusting electronic, mercurial, aneroid and other types of meteorological instruments for compliance with printed specifications and schematic diagrams, using voltmeters, oscilloscopes, tube testers and other test instruments; (j) adjusting and repairing masts, supporting structures, clearance lights, control panels, control cabling and wiring, and other electrical and mechanical devices; (k) repairing and setting optical instruments such as microscopes, telescopes, theodolites and sextants; (l) checking whether assembled units conform to specifications and ensuring stipulated performance and sensitivity by standard tests. Examples of the occupations classified here: - Instrument/meteorological maker - Photographic equipment repairer - Surgical instrument maker - Watchmaker Some related occupations classified elsewhere: - Orthopaedic appliance maker - 3214 - Locksmith - 7222 - Machine tool operator - 7223 - Watch assembler - 8212

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