Ionic Systems GmbH

Electrometer EM 2.0

The electrometer is a very precise voltage measuring device with an extraordinarily high input resistance (impedance), which is required for many experiments in the field of ionics and conventional electrochemistry. It is preferably used to measure a voltage with the lowest possible electrical current, which could cause polarization effects and without disturbing the balance within and between different phases, for example between electrodes and electrolytes. The internal resistance of our electrometer EM 2.0 is > 10¹⁴Ohm. Special precautions were taken by insulating the connections and cables with Teflon. The measuring range is -10 to 10 V.

The EM 1.0 electrometer can also be used as an impedance converter, for example for impedance measurements on samples with high resistance. In this case it is important that no phase and amplitude changes are caused by the electronics and cables. Our electrometer has been specifically designed to avoid possible interference with the meter and to allow frequencies up to 1 MHz. Teflon-insulated and electrically shielded triax cables (length 1 m) are used.

An absolutely feedback-free isolated voltage output for the recorder and computer connection is located on the back of the device.

Specifications

Internal resistance: 10¹⁴ohm

Insulation: Teflon

Frequency range: DC - 1 MHz

Display: LED

Output: isolated without feedback

Dimensions

Width: approx. 23.5 cm (1/2 19" including housing)

Height: approx. 13.5 cm

Depth: approx. 26 cm