1862C General Radio Insulation Meter

Additonal Features:

• Consists of a regulated power supply
• A complement of resistance standards
• A balanced, DC, vacuum-tube voltmeter with very high input resistance
• Test voltages available are:
• 100 VDC and 500 VDC
• Resistance range:
• 0.5 Mohm to 2 Tohm at 500 V
• 0.5 Mohm to 0.2 Tohm at 100 V
• 6 decade ranges
• Accuracy is:
• ±3% of indication at low resistance of each decade to ±12% (accuracy to which scale can be read) at high resistance end up to 50,000 Mohm
• possible additional ±2% error at top decade. Voltage can be removed from terminals by setting of either switch to discharge position