- OUTPUT WAVEFORM FOLLOWS INPUT (LINEAR)
- CONSTANT CURRENT AND CONSTANT VOLTAGE
- PLUS AND MINUS 125 VOLTS COMPLIANCE
- BATTERY OPERATED
- PHOTICALLY ISOLATED
| Model BSI-1
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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 ±10 milliamps
with a compliance voltage of up to ±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 - 9 volt lithium batteries 4-67.5 volt batteries (life expectancy greater than 100 hours) |
| Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | Bench mount with supporting handle |
| Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 5 lbs |
BPG-1 ,2 Biphasic Pulse Generators
