KMF 3 Calibrator for Extensometers
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KMF 3 CALIBRATOR FOR EXTENSOMETERS Area of application The KMF 3 is an economical and universal instrument for checking a large variety of extensometers and for setting the gain of their measurement amplifiers. A linearity test of extensometers is possible only within the system accuracy of the KMF 3. For linearity checks of extensometers with the accuracy class between 0.2 and 1 the calibrator KMF 100 s necessary (according to European Norm EN ISO 9513). In the horizontal position of the KMF 3 even inductive transducers (e.g. LVDTs) can be clamped on through the base plate for testing. Its low weight and handy construction make it highly suitable for field work. Design and function On a stable frame a digital micrometer is fixed having a non-rotating spindle with a stroke of 50 mm. The micrometer can be set to zero at any desired position. The spindle is extended with a measuring pin (Ø 12 mm). Inside the frame the extensometer or inductive transducer can be affixed for testing. Holders with tungsten carbide plate for gauge heads and threaded holders (M4 x 0.5) can be attached instead of the upper measuring pin. The base supports of the instrument can be changed so that a 3 - or 4 - point support may be selected. All parts are made of corrosion resistant materials (hardchrome plated columns, coated aluminium and stainless steel). A data interface for the printer DP - 1DX is available with the digital micrometer Mitutoyo 164 - 161. The supply included : • Extensometer calibrator with digital micrometer Mitutoyo 164 – 161 • 2 Measuring pins Ø 12 mm • 1 Hexagonal screw driver 4 mm • 1 Hexagonal screw driver 1.5 mm Accessories on request Holder with tungsten carbide plate Threaded holder with M4 x 0.5 Columns extended by 50 mm Technical caracteristics : Stroke 50 mm System accuracy 4 µm Resolution 1 µm Measuring pin for clip onextensometers Ø 12 mm Movement of one turn 0.5 mm Digital micrometer Mitutoyo 164-161 Weight 2.5 kg LBG srl Via PETRARCA, 5 – 24052 AZZANO S. PAOLO (BG) – ITALY Tel. +39 035 536762 – Fax +39 035 536049 E-mail: info@lbgsrl.com URL: www.lbgsrl.com