Megger TOS1 Transformer Ohmmeter Standard

This instrument is essentially the same as the PAT320 but includes a flash-test capability, making it ideal for environments like manufacturing, production, or tool-hire shops. Besides automatic testing, it can perform each test individually, which is particularly useful for service and repair organizations engaged in fault diagnostics.

The TOS1 is mainly intended for use in calibration facilities where precise resistance measurements are necessary. It is compatible with both single-phase and three-phase ohmmeters. For testing three-phase ohmmeters with the TOS1, employ the instrument’s single-phase excitation method.

Megger TOS1 Key Features

• High accuracy ±0.1 % ohmmeter standard
• Rugged design for field use
• Designed to be used with large test clips or banana jack inputs
• Four terminal Kelvin – no lead compensation
• Universal standard for use with all ohmmeters

Megger TOS1 Specifications