MEMS Capacitive Accelerometer ► Uniaxial ► 4 Wire System ► Amplified Output ► Aluminium Housing / Stainless Steel Housing ► Made in Germany Features ► Range: ±1g to ±200g ► DC Response ► Gas Damped ► Excellent Bias and Scale Factor Stability ► Low Power Consumption ► Single Ended Mode Options ► Customised Cable Length ► Customised Connector ► TEDS Module Applications ► Structural Monitoring and Testing ► Endurance Testing ► Brake Test ► Vibration Monitoring ► Civil Engineering ► Modal Analysis ► Vehicle Testing ► Automotive Ride Quality & Comfort ► Railway Engineering ► Flutter Test Capacitive MEMS Technology The accelerometers are based on a capacitive MEMS technology and can be used in a low frequency response up from 0Hz. Inside the sensor element, the seismic mass is connected with two conductive capacitor plates. If the seismic mass oscillates between the two capacitor plates the capacitance will change. This capacitance change is converted via an ASIC (Application Specific Integrated Circuit) into an analog signal. Description The models ASC 4421 and ASC 4425 are uniaxial accelerometers based on capacitive technology. Both ASC accelerometers are manufactured with an improved chip technology. The ASC 4421 and ASC 4425 therefore benefit from the high stability of the new chip technology with a low noise level and a low bias and scale factor temperature coefficient. The sensor has been developed specifically for measuring relatively small accelerations, as required in the aerospace or automotive sector, for example. The ASC 4421 and ASC 4425 are shock resistant up to 5000g. Both versions require a supply voltage of between +8VDC to +30VDC. The ±2VDC is DC coupled at a DC bias of 2.5V. The amplified output is easy to use with all common data acquisition units. The stainless steel package of the ASC 4425 provides a high resistance to strong environmental influences. A very high flexible and rugged cable provides a simple mounting. The ASC 4421 and ASC 4425 are equipped with 6 meter cable as standard. ASC GmbH ■ Advanced Sensors Calibration ■ Ledererstra&e 10 ■ 85276 Pfaffenhofen ■ Germany ■ Tel. +49 (0) 8441 786 547 -0 ■

Typical Specifications DYNAMIC Range (±g) 1 2 5 10 30 50 100 200" Shock limit ±g 5000 (0.15ms, half-sine) ELECTRICAL Excitation voltage V DC 8-30 Zero acceleration output ±mV 100 30 30 30 30 30 30 30 Isolation Case Isolated Residual / Broadband noise (±5% frequency range) |jV 180 180 180 700 800 800 800 800 ENVIRONMENTAL Thermal sensitivity shift %/°C 0.01 Thermal zero shift mg/°C 0.05 0.1 0.25 0.5 1.5 2.5 5 10 Operating temperature range °C -40°C to +100°C Storage temperature...

FACTORY CALIBRATION (SUPPLIED WITH THE SENSOR) Range 1g 2g and 5g 10g 30g 50g to 200g CALIBRATION DIN ISO 17025 (ORDER SEPARATELY) Range 1g 2g and 5g 10g 30g 50g to 200g Cable Code/Pin Configuration Red Supply + Black Supply -Green Signal + White Signal -ORDERING INFORMATION ASC 4421 002 6 A Model number Range (Ex. 050 is 50g) Cable length (meters) Connector & Pinout ASC GmbH ■ Advanced Sensors Calibration LedererstraSe 10 ■ 85276 Pfaffenhofen ■ Germany ■ Tel. +49 (0) 8441 786 547 -0 ■ [email protected] All data, information, statements,...