PLUGSYS Microelectrode Amplifier Module (MEA)

PLUGSYS Microelectrode Amplfier Module (MEA)

Permits direct measurement of intracellular or extracellular potentials (with the aid of an included preamplifier headstage)

Item# Description U.S. List Price Quantity
73-1773 Microelectrode Amplifier Module (MEA), including Headstage 73-2665
73-2665 Headstage Preamplifier for Microelectrode Amplifier Module (MEA)
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The Microelectrode Amplifier Module (MEA) is a universal single-channel, easily operated microelectrode amplifier for physiological and pharmacological research. With the aid of the separate preamplifier (headstage) it permits direct measurement of intracellular or extracellular potentials.

The compact MEA module incorporates extensive technology and offers, in addition to its excellent amplifier performance, modern extra facilities such as adjustable output filter, calibration generator, audio monitor and LED bar graph for audible and visual signal monitoring, microelectrode function test (resistance measurement), adjustable buzz frequency, capacity compensation and zero balance. Optionally the MEA can be provided with special headstages.

Headstage Preamplifier for Microelectrode Amplifier Module (MEA) 73-2665

Important Note for Ordering: The Headstage Preamplifier (73-2665) can only be used in conjunction with the  HA-HSE Microelectrode Amplifier (73-1773).The headstage comes with the amplifier and does not need to be ordered separately.

Headstage Specifications

Construction                         
Shielded metal case with microelectrode holder
integral and mounting rod, 2 mm socket for bath
reference and screen connection for central ground;
headstage is independent of MEA amplifier used and
does not require adjustment
Mounting  By 8 mm dia. support rod and integral microelectrode
holder suitable for mounting of conventional
micromanipulators as replacement against standard
microelectrode holder
Microelectrode Resistance       
Suitable for microelectrodes in range of 1 to 100 MΩ
Input Circuit Fully integrated electrometer amplifier with driven
screen, boot-strapped supply and capacity
compensation
Input Current  Compensated to zero
Coupling Resistor 1 GΩ
Capacity Compensation Adjustable over 0 to 8 pF
Frequency Range DC to 75 kHz (-3dB)
Connecting Cable Signal and supply cable 1.95 m long with 8-pin binder
or Amphenol-Tuchel plug to suit MEA microelectrode

Specifications

PLUGSYS MEA Module

Input Through separate preamplifier (headstage) for direct
intracellular or extracellular potential recording
Input Socket 8-pin binder or Amphenol-Tuchel socket
with screw lock

Input Capacity

compensation

Continuously adjustable between 0  and 8 pF
Signal Output Filtered output signal ±10 V corresponding to ±1 V
input signal (gain 10x)
Internally On PLUGSYS system bus, assigned via jumper to one
of signal lines AV-1 to AV-16.
Externally By BNC socket on front pane
Amplifier Bandwidth          
DC to 30 kHz (-3dB)
Output Filter Low-pass in 7 steps covering 30 Hz to 30 kHz (-3dB)
Gain 10x (fixed)
Gain 10x (fixed)
Zero Balance Compensation of input offset in range ±400 mV
Buzzer AC feed through microelectrode to assist piercing
cell membrane during microelectrode insertion; buzz
frequency adjustable with 16-position switch
between 10 Hz and 10 kHz to suit actual requirements
Calibration Signal Generator for signal adjustment to computing
amplifier or recorder; pressing CAL key injects
complex calibration signal consisting of values 0 V, -
100 mV and ±50 mV referred to input
PLUGSYS Width 3 slot units

Headstage Preamplifier for MEA Module

Construction                        
Shielded metal case with microelectrode holder
integral and mounting rod, 2 mm socket for bath
reference and screen connection for central ground;
headstage is independent of MEA amplifier used and
does not require adjustment
Mounting  By 8 mm dia. support rod and integral microelectrode
holder suitable for mounting of conventional
micromanipulators as replacement against standard
microelectrode holder
Microelectrode Resistance      
Suitable for microelectrodes in range of 1 to 100 MΩ
Input Circuit Fully integrated electrometer amplifier with driven
screen, boot-strapped supply and capacity
compensation
Input Current  Compensated to zero
Coupling Resistor 1 GΩ
Capacity Compensation Adjustable over 0 to 8 pF
Frequency Range DC to 75 kHz (-3dB)
Connecting Cable Signal and supply cable 1.95 m long with 8-pin binder
or Amphenol-Tuchel plug to suit MEA microelectrode



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DOCUMENT DESCRIPTION
73-1773_MEA_BA1E.pdfPLUGSYS Micro Electrode Amplifier (MEA) & Headstage User's Manual, Version 1.1