Meco instruments has introduced the pha-5850 clamp-on power, leakage and harmonics analyser for single-/ three-phase power systems. The analyser has a recorder [capable of 17,000 records] and an auto trend feature. It is useful for analysing harmonics up to the 99* order and thd out- put of 50 harmonics in one screen with waveform. The analyser displays waveforms with peak values, power parameters and harmonics at the press of a but- ton, and can capture up to 28 tran- sient events with programmable threshold.