Owner’s Guide
29
Specifications
Input
Connection type: 2 × 4 mm shrouded sockets. Custom cable with two
shrouded banana plugs and terminated with two
dry, bright-plated, bipolar electrodes with Velcro™
attachment strap suitable for adult fingers.
Excitation: Constant-voltage AC excitation
(22 mV
rms
@ 75 Hz)
Current density: 0.5 µA .cm
–2
Safety: Approved to IEC 60601-1 Standard (BF rating)
EMC: Approved to EN61326-1:2006 Standard
Configuration: Transformer isolation (AC bridge operation)
Isolation rating: 4000 V AC
rms
for 1 minute
Input ranges: 1–40 µS full scale in 6 steps
(combined PowerLab and GSR Amp)
0–40 µS
0–20 µS
0–10 µS
0–4 µS
0–2 µS
0–1 µS
Frequency response: –3 dB at 1 Hz
Accuracy: ±5%
Input leakage current: < 3 µA
rms
at 240 V, 50 Hz
< 2 µA
rms
at 120 V, 60 Hz
Zeroing and o set: Automatic so ware-controlled fast zeroing, controlled
by internal 12-bit DAC; resolution = ±0.2 µS
Output
Signal: ±2.0 V full scale: suitable for PowerLab
Control Port
I
2
C port: Provides control and power. Interface communications
rate of ~50 kbits/s.
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