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The Ando VMG-1000 Highmegohm Meter is designed to measure the insulation resistance of high-insulation materials, Up to 2 x 10^10 M-ohm of insulation resistance can be measured. This instrument can also be used as a highly sensitive ammeter to measure current in the range of 5 x 10^-14 to 2 x 10^-5 A. The VMG-1000 incorporates a timer for setting a specific amount of absorption current (charging current, etc.) after the measurement voltage has been applied, and also a GO/NO-GO decision function by means of a comparator, which enables initial setting of a measured value. This facilitates repeated measurements under the same conditions, convenient for component inspection. Use of this instrument will greatly raise efficiency not only in research and development work, but also in assembly line inspections. Specifications. Insulation resistance measurements: 5 M-ohm to 2 x 10^10 M-ohm, in 8 ranges. Accuracy: Meter needle range at 1/3 to 3/4 of full scale (Current scale is 7 to 15 uA), ± 4.5 % for 10^2 to 10^7 M-ohm range, ±8% for 10^8 M-ohm range, ± 10% for 10^9 M-ohm range. Short circuit current: Less than 1 mA. Current measurement: 5 x 10^-8 uA to 20 uA, in 8 ranges. Accuracy for full scale: ± 2 % for 1 to 10^-4 uA range.
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