Specifications
BRM2 Brain Monitor Reference Manual | 37
Data Acquisition Unit specifications
Low pass filter: -3 dB at 122 Hz
High pass filter: -3 dB at 0.5 Hz
Analogue to digital converter: 4 channel successive-approximation type
Sampling rate: 512 samples/sec
Resolution: 12 bits at 512 samples/seconds
Input impedance:
33 MΩ in parallel with 4.7 nF
Allowed DC offset:
±0.75 VDC at input
Noise: < 1 μVp-p
Common mode rejection: >135 dB
Bandwidth: 0.5 - 122 Hz
Environmental specifications
The following environmental conditions must be maintained to avoid damage to the BRM2 Brain
Monitor.
Operation (all components)
Temperature: 0 to 40 °C (32 to 104 °F)
Relative humidity: 25 to 95% at 40 °C (non-condensing)
Shipping and storage (all components)
Temperature: -20 to 60 °C (-4 to 140 °F)
Relative humidity: 25 to 95% at 40 °C (non-condensing)