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£165.46  exc. VAT    
(£198.55 Inc. VAT)

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  • Impedance converter with high-resistance input
  • Useful for measuring extremely small charges and currents
  • Converts input signal into a proportional voltage
  • Includes a 12V AC plug-in power supply
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The Electrometer is an 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.

The Electrometer includes a 12V AC plug-in power supply.

Uses of the Electrometer

The Electrometer is suitable for various topics of investigation, such as:

  • Measurement of charge and voltage in electrostatics
  • Measurement of charge and voltage for a plate capacitor
  • Ionisation of air by burning gases or α radiation
  • Hallwachs effect (external photoelectric effect)

Specifications of the Electrometer

  • Electrometer gain factor: 1.00
  • Input resistance: >1012
  • Output resistance: <1kΩ
  • Input current: <10pA
  • Input capacitance: <50pF
  • Max. output voltage: ±8V
  • Resistance to excess voltage: 1kV (from low-resistance sources), 10kV (from high-resistance sources)
  • Supply voltage: 12V AC

Compatible Equipment

Required Equipment

Delivery Information

The Electrometer is usually delivered within 3 to 5 working days of ordering via UPS courier.

If you would like up to the minute delivery and tracking information for your order, please contact the Lab World Customer Care Team by telephone on 020 7501 1105 or by email using the form below. We look forward to helping you with your enquiry.


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