Precision Instrument for microelectrode quality control
The impedance value of a metal microelectrode for neurophysiological research is a very important parameter to characterize the recording performance of the microelectrode.
The Metal Electrode Impedance Tester Model EIT-201 is a precision instrument for measuring metal electrode impedance at a frequency of 1kHz. It is designed as a bench-top model.
- Metal microelectrode impedance test
- Impedance range from 0-1MΩ and from 1-10MΩ
- Testing frequency: 1kHz, sine wave
- Save to use nanoampere test current
- Digital displayed impedances values
- Easy to use labstand with electrode holder and preamplifier
- Low cost, high precision instrument
|Impedance test range 1||100kΩ...1MΩ|
|Impedance test range 2||1MΩ...10MΩ|
|Test Signal Frequency||1kHz|
|Test Signal Waveform||Sine wave|
Dimensions and Weight
|Supply voltage (V AC)||100 - 240|
|Frequency [Hz]||50 - 60|
|Operating temperature range||+10°C to +40°C|
|Transport temperature range||+10°C to +40°C|
|Humidity||20% - 80% RH (non-condensing)|
The model EIT-201 will measure electrode impedance in the two ranges 100kΩ ... 1MΩ and 1MΩ ... 10MΩ and displays the impedance value on an easy to read high quality digital liquid-crystal-display (LCD).
The EIT-201 has its own sine wave oscillator integrated which generates a very stable 1kHz sine wave test signal. The electrode impedance is measured with a constant current of 5nA. The EIT-201 measuring circuit is largely unaffected by microelectrode offset or tip junction potentials.
A special designed stainless steel laboratory stand is provided with the system.