Yokogawa aims to simplify calibration of power meters and analysers
- Release on:2017-12-06
Unlike Yokogawa’s existing AC calibrator, the 2558A, which required two separate 2558A instruments plus a reference power meter. This new calibrator combines these functions in a single instrument.
The LR3300 provides an output up to 1250V and 62.5A with an accuracy of 450ppm or 0.045%) and stability of 100 ppm or 0.01% for one hour.
For larger current outputs, up to 180 A can be obtained by synchronising the outputs of multiple units.
For the calibration of 3-phase power meters, it is possible to synchronise the outputs of two or three LS3300 instruments using master/slave connections.
Other features include the capability for direct calibration of the current sensor inputs of a clamp-on power meter using the instrument’s auxiliary output, and notification of when the output becomes stable to maximise the accuracy of the measurement.
All power meters and analysers need calibrating to confirm their performance and to satisfy the requirements of quality systems such as ISO9001.