Designed for ease of use and superior performance while used for measurement of small current, small charge or time constant for RC experiments. Rotary switch of extremely high insulation resistance (>500GΩ) is employed to select resistors or capacitors, to discharge the capacitor or leave them open.
Typical half times for this unit, for the built in 1nF 100GO or 100nF 1GO RC pairs, are from 67 to 71 seconds against theoretical values of 69.3 seconds. Charge or current is tabulated on a table on front panel for easy reference.
Measurement range from 1pA to 100nA, 0.1nC to 100nC
1V auxiliary output is provided for data-loggers
Complete with a UHF male to 4mm plugs lead
Professional electrometer IC
Input leakage current for amplifier guaranteed less than 25fA
Built in moving coil meter
Analogue outputs available for dataloggers or external meter
Input resistance over 1TΩ
Selection of 1nF 1% or 100nF 2% capacitors
Selection of 10MΩ 1%, 1GΩ 1% or 100GΩ 1% resistors
x1 and x10 gain switch provides the decades between the built-in resistors
