Elektrometer

Elektrometer Impedance converter with high-resistance input for measuring extremely small charges and currents. The input signal is converted into a proportional voltage, which can then be measured with an external voltmeter. During the measurement the potentials of the electrometer and the experimenter must be matched by using a metal rod connected to earth. Includes a 12-V AC plug-in power supply. Please check the recommended and required tabs for additional supplies. Aplications: Measurement of charge and voltage in electrostatics Measurement of charge and voltage for a plate capacitor Ionisation of air by burning gases or a radiation Hallwachs effect (external photoelectric effect) Specifications: Electrometer gain factor: 1.00 Input resistance: >1012 ? Output resistance: <1 k? Input current: <10 pA Input capacitance: <50 pF Max. output voltage: ±8 V Resistance to excess voltage: 1 kV (from low-resistance sources), 10 kV (from high-resistance sources) Supply voltage: 12 V AC