DESCRIPTION:

Megger CB101G is a 5 kV calibration checkbox designed to verify the accuracy of insulation resistance testers. The unit contains four precision high-voltage resistors that allow users to compare measured values against known resistance checkpoints, providing a quick functional check of tester performance.

The calibration box is rated for test voltages up to 5 kV DC, making it suitable for checking the operation of Megger insulation testers and similar high-voltage megohmmeters. Each unit is supplied with a calibration certificate showing the exact resistance values of the internal checkpoints, allowing users to confirm measurement accuracy without sending the instrument for full calibration.

The CB101G provides a convenient method for routine accuracy checks of insulation resistance test equipment used in electrical maintenance, commissioning and asset condition monitoring.

KEY FEATURES:

• 5 kV calibration checkbox for insulation testers
• Designed to verify insulation tester measurement accuracy
• Contains four precision internal resistors for resistance checkpoints
• Nominal resistance values: 10 megohm, 100 megohm, 1 gigohm and 10 gigohm
• Rated for test voltages up to 5 kV DC
• Supplied with calibration certificate showing actual resistor values
• Suitable for checking Megger insulation resistance testers and megohmmeters
• Compact enclosure for portable field verification of instruments