Home Products CHARGE UNIT 8947

CHARGE UNIT 8947

Instantly measure acceleration waveform with pick-up sensor

Discontinued

Key Features

  • 2 ch, Charge-output type piezoelectric acceleration pick-up sensor, Acceleration pick-up sensor with an internal preamp
  • 12-bit A/D resolution measurement
  • Buit in Anti-aliasing filter for FFT analysing
  • Isorated input, up to 30 V rms AC, 60 V DC (maximum rated voltage to earth)

Model No. (Order Code)

8947 Discontinued, For the 8860-50, 8861-50, and similar products
Note: Use with the Memory HiCorder. The charge-output type piezoelectric acceleration pick-up sensor, and acceleration pick-up sensor with an internal preamp is not provided by Hioki, and must be purchased from a separate vendor.

Basic specifications

Accuracy guaranteed: 1 year
Measurement functions Number of channels: 2, for acceleration measurement
Input connectors Voltage input/integrated preamplifier input: metallic BNC connector (for voltage input: input impedance 1MΩ, input capacitance 200pF or less)
Charge input: miniature connector (#10-32 UNF)
Max. rated voltage to earth: 30Vrms or 60V DC (with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage)
Suitable transducer Charge input: Charge-output type piezoelectric acceleration pick-up sensor
Internal preamp input: Acceleration pick-up sensor with an internal preamp
Measurement range
Charge input (miniature connector)
Internal pre-amp input (BNC connector)		 50m (m/s2)/DIV to 10k (m/s2)/DIV, 12 ranges × 6 types, charge input sensitivity: 0.1 to 10 pC/(m/s2), integrated pre-amplifier input: 0.1 to 10 mV/(m/s2), amplitude accuracy: ±2% of full scale, frequency characteristics: 1 to 50kHz, +1/-3dB, low-pass filter: 500Hz/5kHz, pre-amplifier drive power source: 2mA ±20%, +15V ±5%, maximum input charge: ±500pC (high-sensitivity setting, 6 ranges), ±50000pC (low-sensitivity setting, 6 ranges)
Measurement range
Voltage input (BNC connector)		 500μV to 2V/DIV, 12 ranges, DC amplitude accuracy: ±0.4% of full scale, frequency characteristics: DC to 400kHz, +1/-3 dB, low-pass filter: 5Hz/500Hz/5kHz/100kHz, input coupling: DC, GND, AC, Max. allowable input: 30Vrms or 60V DC
Measurement resolution 1/80 to 1/32 of measurement range (depending on measurement sensitivity; installed in 8860 series)
Highest sampling rate 1MS/s (2-channel simultaneous sampling)
Anti-aliasing filter Integrated filter for suppressing aliasing distortion caused by FFT processing (automatic cutoff frequency setting/OFF)
Dimensions and mass 170 mm (6.69in)W × 20 mm (0.79in)H × 148.5 mm (5.85in)D, 310 g (10.9 oz)
Included accessories None
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