Impedance Tester
Precision Instrument for microelectrode quality control
Impedance Tester
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.
Key features:- 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
| Dimensions and Weight | |
| Length (mm) | 250mm |
| Width (mm) | 180mm |
| Height (mm) | 74mm |
| Weight (kg) | 1kg |
Impedance Test | |
| Impedance test range 1 | 100kΩ…1MΩ |
| Resolution | 1kΩ |
| Impedance test range 2 | 1MΩ…10MΩ |
| Resolution | 10kΩ |
| Test Signal Frequency | 1kHz |
| Test Signal Waveform | Sine wave |
Enviromental condition | |
| Operating temperature range | +10°C to +40°C |
| Transport temperature range | +10°C to +40°C |
| Humidity | 20% – 80% RH (non-condensing) |
Power Supply | |
| Supply voltage (V AC) | 100 – 240 |
| Frequency [Hz] | 50 – 60 |
Overview
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.
Figure 1: Electrode-Impedance-Tester (EIT-201) with steel laboratory stand
Questions? Please don’t hesitate contacting us!
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