2-Ch Sensor Amplifier


The SR-2210 sensor amplifier accepts constant-current line drive sensors and connects the signal to analyzers and recorders that would not otherwise be compatible with constant-current sensors.

The units connects directly with BNC connectors to ONO's model MI-3111 microphone preamplifiers and NP-3000 series of accelerometers.

With compact, light-weight, battery operation, it can save for preparation of measurement.

  • Two input channels.
  • Dual power source: Battery or AC adaptor (optional).
  • A, C, Flat weighting.
  • Stackable for multiple channels.

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Current Sensor Power 2.4 mA / applied voltage : approximately 18V
Number of Channels 2
Frequency Range 1 Hz to 20 kHz (±0.5 dB)
Gain -10, 0, 10, 20, 30, 40, 50, 60 dB in 10-dB step, selectable, ± 0.2 dB
Frequency Weighting A/C/FLAT (Conforming standards: IEC 651 Type 1, JIS C 1505-1988)
Power Supply Type AA battery x 4 / External power supply: PB-7090* AC adaptor (option)
Battery Life Approximately 20 hours minimum (with alkaline battery)
Operating Temperature Range -10 to +50°C
Operating Humidity Range 30 to 90 % RH (With no condensation)
Dimensions 140 (W) x 40 (H) x 125 (D) mm (Not including protruded section)
Weight Approximately 550 g (With batteries)
Accessories Instruction manual x 1 copy, battery (LR06) x 4 pcs


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