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The COLUMBIA Model SI-701BC series are electronic tilt sensors based upon force balance accelerometer technology. They produce a high level, low impedance output proportional to the sine of the tilt angle. Unique electronic damping and desensitization circuitry allows tilt measurements in strong vibration and shock environments. The SI-701BHP uses the COLUMBIA HP suspension system and provides added accuracy and ruggedness. These devices are intended for applications such as platform stabilization, surface mapping and measuring tilt angles in remote locations and environments not permitting the use of more traditional methods. Specifications: SI-701BC Operational: Ranges Available - ±15, ±30, ±45, ±90 Deg. Output Voltage - ±5VDC @ F.R. Output proportional to the Sine of the Angle Output Impedance – Less Than 100 ohms Excitation - ±12VDC to ±15VDC Less than 15 mA Each Supply Accuracy - ±0.25% F.R. Repeatability – ±0.1% F.R. Orthogonal Sensitivity – Less Than 0.1% Frequency Response – 0 to 3 Hz-18 dB/Oct Rolloff Zero Bias – ±0.2% F.R. Bias Temp Coefficient – ±0.001% F.R./Deg C Scale Factor Temp. Coef. – ±0.02%/Deg C Threshold & Resolution – 0.001% F.R. Environmental: Temperature: Operating - -50 Deg C to +85 Deg C Storage - -50 Deg C to +100 Deg C Vibration Survival (2 to 2000 Hz) – 5 G RMS, 0.5" Disp D.A. Shock – 125 G, 1 ms Half Sine Humidity – 95% R.H. Physical: Weight – 4 Oz Max Size – 3.09" L x 1.38" W x 1.34" H Case Material - Anodized Aluminum Sealing – Environmental