Teledyne Test Tools T3RC Rogowski Current Probes offer broad current measurement ranges and a wide frequency span. Five models are available, providing measurement capabilities up to 6,000 A and with the capability to connect around the leg of a small T0-220 device. The probes connect to any standard oscilloscope via a conventional BNC connection.

The flexibility of the probe sense coil means that measurements can usually take place without modification to the circuit under test, giving more accurate electrically-isolated results with a low insertion load (a few pH). Being designed for either battery power or wall plug operation, these Rogowski Current Probes are equally suited to field work or benchtop measurements.

The T3RC0300-UM version features the smallest cross-section sense coil at only 1.7 mm to allow probing around the leg of small power components such as inductors, capacitors or even switching devices as small as a TO-220 MOSFET. The T3RC0600-HF and T3RC3000-HF models cover applications up to 600 A and 3,000 A respectively. With extended high-frequency coverage, 5 kV peak insulation and wide operating temperature range from -40 to +125°C, these probes are candidates for use in both industrial temperatures and general environments. The T3RC3000-LF and T3RC6000-LF versions offer an extended low frequency performance down to less than 1 Hz. The low-frequency performance means the maximum droop on low-frequency pulses is typically 0.1%/msec or less, while offering the highest level of peak insulation of 10 kV and an operating temperature range of -20 to +100°C.

Applications include current measurements in R&D, motor drives, power converters, system maintenance, etc.

The Teledyne LeCroy T3RC probes are available now from their authorized North American distributor Saelig Co., Inc. Fairport, NY. For detailed specifications, free technical assistance, or additional information, contact Saelig at 888-7SAELIG, via email: info@saelig.com, or http://www.saelig.com/category/teledyne-lecroy-current-probes.htm.