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<td><h1>SR87</h1></td>
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<p>This robust type magnetic scale system that output position signals for machine tools and other equipment that require high precision positioning.</p>
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<li>Measuring length (ML): 140-3,040mm</li>
<li>Accuracy (20°C): 3+3ML/ 1000µm p-p 5+5ML/ 1000µm p-p</li>
<li>Minimum resolution: 0.01µm</li>
<li>Maximum response speed: 200m/min</li>
<li>Vibration resistance: 250m/s2</li>
<li>Impact resistance: 450m/s2</li>
<li>IP rating: IP54 (Air purge excluded) IP65 (Air purge included)</li>
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<div align=”center” style=”margin-top: 25px; margin-bottom: 10px;”>Specifications</div>
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<td width=”30%”>Model</td>
<td align=”center” width=”70%”>SR87</td>
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<td>Measuring length (ML)</td>
<td align=”center”>140-3040mm<br>
140, 240, 340, 440, 540, 640, 740, 840, 940, 1040, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840, 2040, 2240, 2440, 2640, 2840, 3040</td>
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<td>Thermal expansion coefficient (/°C)</td>
<td align=”center”>12 ± 1 x 10^-6 / °C</td>
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<td>Output signal</td>
<td align=”center”>Absolute serial bidirectional signal, compliant with EIA-485</td>
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<td>Accuracy (at 20 °C) ML:mm</td>
<td align=”center”>3+3ML/1000 µm p-p or 5+5ML/1000 µm p-p</td>
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<td>Resolution</td>
<td align=”center”>Selectable from 0.01, 0.05, 0.1, 0.5 and 1.0 µm (Set at factory shipping)</td>
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<td>Zero count position</td>
<td align=”center”>Center mark</td>
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<td>Power supply voltage</td>
<td align=”center”>DC 4.75 – 5.25 V (At cable connection end)</td>
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<td>Consumption current</td>
<td align=”center”>200 mA (at 120 Ω terminal) max.</td>
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<td>Imrush current</td>
<td align=”center”>2A max. (When the power supply rise time is 10ms)</td>
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<td>Maximum response speed</td>
<td align=”center”>200 m/min (User-selected resolution setting)</td>
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<td>Vibration resistance</td>
<td align=”center”>250 m/s² (50Hz~2kHz)</td>
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<td>Impact resistance</td>
<td align=”center”>450 m/s² (11ms)</td>
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<td>Protective design grade</td>
<td align=”center”>IP54 (Air purge not included), IP65 (Air purge included)</td>
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<td>Other protections</td>
<td align=”center”>Oil lubricant can also be used under severe enviromental conditions</td>
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<td>Power supply protection</td>
<td align=”center”>In the case of errors such as reverse connected power supply or over voltage, the internal fuse is cut to protect the power being supplied and wiring</td>
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<td>Safety standards</td>
<td align=”center”>FCC Part 15 Subpart B Class A. ICES-003 Class A Digital Device.<br>
EN55011 Gp1 Class A, EN61000-6-2. Safety standards not applicable (60 V DC or less)</td>
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<td>Operating temperature range (°C)</td>
<td align=”center”>0 ~ +50 °C</td>
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<td>Storage temperature range (°C)</td>
<td align=”center”>-20 ~ +55 °C</td>
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<td>Mass</td>
<td align=”center”>Approx. 1.24kg + 4kg/m</td>
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<td>Slider sliding resistance</td>
<td align=”center”>1N or less</td>
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