Megger 6311-077 CB101 Calibration Box + Cal Cert

The Megger CB101 (6311-077) is a calibration box suitable for checking the accuracy of insulation testers. Four resistors are connected in the unit to enable a wide range of values to be checked. The high quality resistors, rated to high voltage, can be used to check resistance readings with test voltages up to 5 kV DC. A calibration certificate is provided with the CB101 showing the actual value of each resistance checkpoint.

Product Features:

• Provides quick check of insulation tester calibration
• Contains high quality resistors for checking wide range of values
• Suitable for checking resistance readings with test voltages up to 5 kV DC
• Supplied with calibration certificate

Specifications:

• Nominal resistance values: 10 MΩ, 100 MΩ,1 GΩ, 10 GΩ
• Calibration accuracy: 1%
• Nominal value accuracy: 2%
• Voltage coefficient: 1ppm/V
• Calibration temperature: 20°C (68°F)
• Temperature coefficient: 250 ppm/°C (139 ppm/°F)
• Shelf stability typically: 0.5% per year
• Operating temperature: 5°C to 40°C (41°F to 104°F)
• Storage temperature: -20°C to 60°C (-4°F to 140°F)
• Operating humidity: 60% RH maximum
• Dimensions: 130 x 68 x 68 mm (5.1 x 2.7 x 2.7 in.)