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Metal microelectrode amplifier
Two amplifiers in one instrument
Two head stage probes
Low cost
Recording gains: x100, x1000 or x10,000
Low noise (25 µV peak to peak 10 Hz -10 kHz)
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High common-mode rejection (>70 dB @ 60 Hz)
High line frequency rejection with notch filter
(>110 dB @ 60 Hz) (50 Hz optional)
High input impedance (100,000 MOhm )
Low input bias current (100 pA
typical; 300 pA maximum)
Adjustable low and high frequency filters
Power: 110 VAC @ 60 Hz (220 VAC @ 50 Hz)
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MODE
SELECTION This switch
allows the user to select one of three Modes for each channel of the amplifier: IMP Mode (Impedance Check), REC Mode (Record), and STIM Mode (Stimulate). During Impedance Check, an internal 1 kHz oscillator
automatically applies a calibrated current through the electrode and the amplifier monitors the voltage in order to check impedance. CAPACITY
This control is used to neutralize capacitance during the electrode impedance check. The output signal is 100 mV per MOhm . In the Record
Mode, the Instrument amplifies the differential input signal by an amount selected by the GAIN switch. In the Stimulate Mode, a stimulus is applied directly to the electrode through the STIMULUS connector, and the
amplifier monitors the current passing through the electrode. Output signal is 100 mV per µA. GAIN
SELECTION In the Record Mode, the gain of each amplifier may be independently set by
adjusting the GAIN switch to x 100, x 1000, or x 10,000.
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Physical
Dimensions: 43.2 cm x 12.1 cm x 28.6
cm
AC Power:
This is the standard power source. Either 110 V/AC or 220
V/AC may be used.
Line frequency:
60 Hz standard, 50 Hz optional (no extra cost).
These are set at the factory and must be indicated at the time the order is
placed. HEAD
STAGE Input:
2.0 mm female pin connector. Body:
1.36 cm diameter x 4 10.2 cm length., Mounting Rod: 4.7
mm diameter x 9.5 cm length.
Input Cable:
1.5 m Superflex silicone jacketed cable.
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