ASC 4221MF
3Pages

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Catalog excerpts

ASC 4221MF - 1

MEMS Capacitive Accelerometer ► Uniaxial ► MF (Medium Frequency; DC to 2.5 kHz ► 4 Wire System ► Amplified Output ► Aluminium Housing ► Made in Germany Capacitive MEMS Technology Features ► Range: ±2g to ±200g ► DC Response ► Gas Damped ► Excellent Bias and Scale Factor Stability ► Low Power Consumption ► Differential 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 ASC's Medium Frequency (MFseries) capacitive accelerometers are based on the capacitive sensing technology and produce an analog voltage proportional to the input acceleration. The accelerometers can measure both static (gravity) and dynamic accelerations. ASC's MF series can be used for very low to medium frequency vibration measurements from 0Hz to 2.5kHz. The MF series features a MEMS sensor element where the seismic mass is connected between two conductive capacitor plates. When subjected to an input acceleration, the seismic mass oscillates between the two capacitor plates and there is a change in the capacitance. This change in capacitance is converted via an ASIC (Application Specific Integrated Circuit) into a low impedance analog voltage output signal. Description ASC's 4221MF capacitive accelerometer is an analog voltage output sensor. The sensor can be powered by a DC power supply (+5V to +40V) where the output voltage is independent of the supply. The sensor operates in a differential configuration with ±2.7V full-scale output. For the full-scale acceleration range, the output swings between 0.3V and 3V. The differential configuration results in an improved S/N ratio and a better performance. ASC Type 4221MF features a small and lightweight Aluminium housing and provides simple mounting. The sensor is supplied with 6m integral cable as a standard. positive Direction ASC GmbH ■ Advanced Sensors & Calibration ■ Ledererstra&e 10 ■ 85276 Pfaffenhofen ■ Germany ■ Tel. +49 8441 786547-0 ■

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ASC 4221MF - 2

Typical Specifications DYNAMIC Range (±g) 2 5 io 3o 5o Too 2oo" Shock limitgpK6000 (0.1ms, half-sine) Recovery time ms 1 ELECTRICAL Excitation voltage V DC 5 to 40 Zero acceleration output ±mV 50 Isolation Case Isolated ENVIRONMENTAL Temperature coefficient of sensitivity %/°C 0.01 (Thermal sensitivity shift) Temperature coefficient of bias mg/°C 0.2 0.5 1 3 5 10 20 (Thermal zero shift) Operating temperature range °C -20 to +80 Storage temperature range °C -40 to +100 PHYSICAL Sensing element Case material Connector Mounting Weight (without cable) Cable MEMS Capacitive Aluminium Optional...

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ASC 4221MF - 3

FACTORY CALIBRATION (SUPPLIED WITH THE SENSOR) Range 2g and 5g 10g 30g 50g to 200g CABLE CODE / PIN CONFIGURATION Red: Supply + Green: Signal + Black: Supply - White: Signal - asc Model number Range (Ex. 050 is 50g) Cable length (meters) Connector & Pinout A: no connector Example: ASC 4221MF-002-6A QUALITY 1) ASC is ISO 9001:2015 certified 2) The Deutsche Akkreditierungsstelle GmbH (DAkkS) has awarded to our calibration laboratory the DIN ENISO/IEC 17025:2005 accreditation for calibrations and has confirmed our competence to perform calibrations in the field of mechanical acceleration...

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