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<br />Chapter 2. Specifications <br /> <br />Charging An internal charging circuit allows charging with the supplied plug-in <br /> wall mount charger or any 10 to 15 volt DC supply. Power supplies <br /> for international use are available. <br />Operating Temperature 0 to 130 degrees F (-18 to 54 degrees C) <br />Case Heavy gauge aluminum for effective electrical shielding and rugged <br /> protection. A stainless steel case is optional. The case is sealed <br /> allowing shallow burial. <br />Size Approximately 7.5 in. x 4.5 in. x 2.5 in. <br />Weight - Aluminum Case Approximately 3.5 lbs. (1.6 Kg.) without accessories. <br />Weight - Stainless Steel Adds 2 lbs. (.9 Kg.) above the aluminum case weight. <br />Weight - Accessories Approximately 6 lbs. (2.7 Kg.) including the storage case. <br />Waveform Data Mini-Seis: The full waveform signature is stored in solid state <br /> memory for up to 340 events. <br /> Mini-Seis II 1/8M: Approximately 10 to 20 typical blast events. <br /> Mini-Seis II 1/4M: Approximately 50 to 100 typical blast events. <br /> Mini-Seis II 1/2M: Approximately 150 to 250 typical blast events. <br />Summary Data Summarized data include the event time, date, battery voltage, peak <br /> measurements, unit serial number and frequencies. The <br /> summarized data are stored in solid state memory for the last 341 <br /> events. <br />Sample Rate Mini-Seis: From 2048 samples per second per channel down to 32 <br /> samples per second per channel. <br /> Mini-Seis II: 1024 or 512 samples per second per channel. <br />Recording Units English (U.S.) or metric. <br />Seismic Recording Ranges Standard (x2) <br />0.005 IPS to 2.5 IPS (0.125 to 64 MMPS) <br />0.01 IPS to 5.0 IPS (0.25 to 127 MMPS) <br />0.02 IPS to 10.0 IPS (0.50 to 254 MMPS) <br />Optional (x1 - accelerometers) <br />0.01 IPS to 5.0 IPS (0.25 to 127 MMPS) <br />0.02 IPS to 10.0 IPS (0.50 to 254 MMPS) <br />0.04 IPS to 20.0 IPS (1.00 to 508 MMPS) <br />Optional (x4) <br />0.0025 IPS to 1.2 IPS (0.063 to 30.5 MMPS) <br />0.005 IPS to 2.5 IPS (0.125 to 64 MMPS) <br />0.01 IPS to 5.0 IPS (0.25 to 127 MMPS) <br />Optional (x8) <br />0.0013 IPS to 0.6 IPS (0.033 to 15.2 MMPS) <br />4