CWE Biomedical Amplifier BMA-200 AC/DC

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BMA-200

High-performance, battery-operated biopotential amplifier with built-in audio monitor

● High-performance portable extracellular amplifier
● Battery operated
● Amplifier for EEG, ECG, EMG, and other extracellular applications

 

The BMA-200 is a low-noise, portable, battery operated amplifier for EEG, ECG, EMG, and other extracellular applications. The BMA-200 features a wide gain range, sharp cutoff bandpass filters, an AC calibrator, and a built-in audio amplifier and speaker for monitoring the signal. Stimulus delivery to the electrodes is accomplished by a front-panel switch, or via an external logic signal. True DC response is switch-selectable, with a variable DC offset control. Low-power circuitry contributes to long operating time between charges, or the unit can be operated continuously with the included AC adapter. It can be used as a stable DC amplifier, and includes adjustable DC input offset controls.

 

Positive and negative DC voltages are provided at the input connector for bridge excitation or powering optional head-stage active probes. For human subject recording, the ISO-Z Isolation Amplifier head-stage should be used. Active probes are available for high-impedance microelectrode applications. The BMA-200 is fully compatible with the complete line of cables, electrodes, and other accessories available for the BMA-931 modular amplifier.

 

The BMA-200 is the latest in our line of high-performance preamplifiers. Its versatility and wealth of features make it equally at home in the laboratory or as a rugged field instrument. 

 

Options:
● 220V charger/adapter
● Pre-wired input cable
● ISO-Z Isolation head-stage
● Electrodes
● Spare connectors & pin plugs

 

Note: Not to be used for human life support applications.

Meer informatie
Art.nr.
BMA-200
Fabrikant
CWE
Country of Manufacture
Verenigde Staten
Specifications
Channels 1
Input Type Differential instrumentation amp
Impedance > 109 Ω
Wideband Noise, RTI <7μV P-P
Common Mode Rejection >95 dB
Gain Range 10X - 50,000X, 12-positions
Filter Type, Slope Butterworth, flattest response, -12 dB/octave
Coupling AC or DC, switchable
Input Offset Adjustment Ranges +2 mV, +20 mV, +200 mV, jumper selectable
Voltages at Input Jack for External Devices +7.2 V, 20 mA max current
AC Calibrator 1 mV P-P square wave, approx. 10 Hz
Low-pass Filter 100 Hz - 50 kHz, 6-positions
High-pass Filter DC - 300 Hz, 6-positions
Input Connector Amphenol 703-91T-3478-009 7-pin
Stimulus Record Input TTL negative logic, or switch closure
Stimulus Inputs (Rear Panel) 2 mm (0.080”) pin jacks
Audio Amplifier 200 mW, built-in mylar speaker
Audio Output Connector 3.5 mm stereo mini-phone jack
Output Connector (Rear Panel) BNC jack
Operating Time Between Charging Approx. 24 hours
Power Adapter/Charger 24 VDC
Size (W x H x D)
150 x 45 x 180mm
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