Model BSI-1
Description:
The Model BSI- 1 Biphasic Stimulus Isolator is totally battery powered
utilizing optimum packaging design to provide maximum isolation of stimulus
signals. This instrument is a truly linear device which will convert any
waveform from 0 to plus and minus 10 volts into a constant current or constant
voltage stimulus. It has a constant current range from +100 nanoamps to
t 10 milliamps with a compliance voltage of up to j 125 volts and a constant
voltage range between 0 and +125 volts. A four position front panel range
switch allows optimum resolution for selecting precise stimulus amplitudes.
A calibrated front panel control knob allows the investigator to apply
input signal levels which can then be attenuated to give continuously adjustable
output levels. A separate output jack is provided for monitoring current
levels through the electrode so that no connection need be made across
the electrode which could interrupt the stimulus current path.
The Model BSI-1 is a completely self-contained portable instrument with
adjustable handle for convenient placement near the preparation. It is
the logical companion to the BPG-1,2 Biphasic Pulse Generators.
| Constant Current | +/-100 nA to +/-10 mA |
| Constant Voltage | Zero to +/-125 volts |
| Linearity | 1% |
| Noise | 0.5% of full output range |
| Compliance Voltage In Constant Current Mode | +/-125 volts |
| Isolation | 1000 volts (photically isolated) |
| Input Voltage Range | 0 to +/-10 volts (will accept any waveform) |
| Range Adjust | 4 position switch and calibrated input attenuator knob (0-1.0) |
| Rise Time | 2 microseconds with 1 megohm source impedance |
| Slew Rate | 5 volts per microsecond |
| Current Monitor Output | 1 mv/uA |
| Power Supply | 4 - 8.4 volt batteries 4-6.75 volt batteries (life expectancy greater than 100 hours) |
| Package | Bench mount with supporting handle |
| Weight | 5 lbs. |
BPG-1 ,2 Biphasic Pulse Generators
