GSR AMPLIFIER

GSR AMPLIFIER .
a) Technical specification

Input

• Connection type: 2 × 4 mm (0.16") shrouded banana plugs to custom cable. Two dry, bright-plated, bipolar electrodes with Velcro™ attachment strap suitable for adult fingers.
• Excitation: Constant-voltage AC excitation (22 mVrms @75 Hz)
• Current density: ≤0.5 μA cm–2
• Safety: Approved to IEC60601-1 BF (body protection) standard
• Input isolation: Transformer isolation (AC bridge operation)
• Isolation rating: 4000 V ACrms for 1 minute
• Amplification ranges: 1 to 40 μS full scale in 6 steps (combined Power Lab and GSR Amp)
• Frequency response: –3 dB at 1 Hz
• Accuracy: ±5 %
• Input leakage current: <3 μArms at 240V, 50 Hz <2 μArms at 120V, 60 Hz
• Zeroing and offset: Automatic software-controlled fast zeroing, controlled by internal 12-bit DAC; resolution = ±0.2 μS