The Neuroprobe Amplifier
Model 1600 is a precision-crafted microelectrode amplifier designed
especially for the exacting requirements of intracellular neurological
studies. It is a self-contained unit with many built-in features
that reduce the need for additional instrumentation and provides
the research scientist with versatility, accuracy, and ease
of operation. The Digital Panel Meter produces a highly accurate
display of membrane potential, injected current, or electrode
resistance.
The internal Dual-Function Transient Control and the DC balance Control
assure extremely precise recordings during current injection without requiring
an external bridge or a differential input oscilloscope. The ten-turn potentiometers
used for the DC Offset, DC balance, Current Injection, and dual Capacitance
Compensation Controls allow high resolution. And internal square-wave generator
supplies 100Hz current to test electrode resistance and to adjust capacitance
compensation, with the resistance values directly displayed on the Digital
Panel Meter.
The Neuroprobe Amplifier's advanced current injection system, adjustable
to 0.1nA resolution, allows external switching of both internal and external
current sources. The total current from all sources can be displayed on
the Digital Panel Meter prior to injection. This capability allows the
user to inject the exact amount of current desired. Depending upon the
requirements of the experiment, the user can also select either momentary
or continuous injection. The Model 1600 has been carefully engineered
to eliminate noise that might adversely affect test results. The user
has a choice of either AC or battery power. The internal battery offers
10 hours of operation before recharging and isolates the instrument from
power-line frequency interference while the floating ground helps to eliminate
ground-loop noise.
The Neuroprobe Amplifier can be used with computer equipment or a standard
chart recorder to generate a permanent record of injected current and
neurological response. It has a direct input for use as a Digital Volt
Meter and is also adaptable as a general purpose electrometer, with outputs
displayed on the Digital Panel Meter.
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