position indicator - SIKO - #11

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1 [A] [B] 2 mm inch 1 2 3 4 1.2 1.3 1.4 1.5 1.6 1.1 1.0 1.7 1 PositionLine | 1.1 Mechanical digital position indicators www.siko.de Mounting torque support The radius of the shaft is added to the space measurement between the hollow shaft and torque shaft. This measurement is marked on the mounting surface with a slide gauge and scriber [1], then center-punched [2] and drilled (for the drilling diameter and depth refer to the technical drawings). After correct pre-drilling, stress-free mounting of the position indicator must be possible [3, 4]. Locking on the shaft The set screw is screwed in and tightened for reliable locking on the shaft. If axial seals are used, the set screw must be screwed in until it is flush (if necessary provide a recess in the shaft). Torque support (2 versions) You have the choice between the pin [A] or umbrella [B] versions on almost all position indicators. The umbrella type torque pin is the optimum solution for compensating for installation tolerances. Changing the counting direction The counting direction can be subsequently changed on the position indicators DA05/1 and DA08. To this purpose carefully open the housing. Slacken the clamping screws of the bevel gears on the shaft, so that they can be moved. These must be subsequently firmly re-tightened. When moving the gears, ensure correct meshing and smooth running. If the left gear wheel is engaged [1], the counting direction is positive in a clockwise direction; if the right gear wheel is engaged [2], the counting direction is positive in an anti-clockwise direction. The diagram shows a view from the rear. Inch display: Advantages of the analog principle While digital principles depend on the resolution, axial rotation has an infinite resolution. Theoretically the smallest of rotation dimensions can be divided into any required number of intermediate steps. This means that loss-free display of metric pitches is also possible in inches. The gear unit makes the conversions. Example: 4 mm in inches; display value is 4/25.4 = 0.15 (748). Although the last 3 digits “748” are not shown, they are “carried along” in the gear unit due to the analog measuring principle. 11