CHK Power Quality Pty Ltd, User Manual – Miro Power Quality Logger and Analyser, 15 August 2016
Website: www.chkpowerquality.com.au; Enquiries: sales@chkpowerquality.com.au; Page 19
Address: Unit 1, 3 Tollis Place, Seven Hills, NSW 2147, Sydney, Australia; ABN: 53 169 840 831; Telephone: +61 2 8283 6945;
Fax: +61 2 8212 8105; Website: www.chkpowerquality.com.au
The Miro is powered by the A phase voltage. You must connect this phase for the
Miro to begin logging.
Unused voltage clamps should be connected to neutral. (Do not leave the unit
unattended with unconnected voltage clamps).
Before leaving the installation site, check that the voltages and currents displayed on
the LCD are reasonable.
Check that the Miro is logging data by checking that ‘LOG: ON’ is shown on the
bottom right hand corner of the LCD. “Wait” indicates unit is waiting for configured
start time. “Fin” indicates that the configured stop time has already passed and unit
will not log until reconfigured.
4.7 Disconnecting the Miro
When any voltage clamp/plug is connected to a hazardous live conductor, the other voltage
clamp/plugs should also be treated as live, due to the internal measurement impedance of
the Miro.
PQ25/35
Disconnect the voltage leads in the following order:
PC4: Switch off the GPO and remove the plug;
VL4: Phase A, Phase B, Phase C, Neutral; and
VL6: Phase A, Neutral A, Phase B, Neutral B, Phase C, Neutral C.
PQ45
Disconnect the voltage leads in the following order:
PC5: Switch off the GPO and remove the plug;
VL5-C and VL5-B: Phase A, Phase B, Phase C, Neutral and Ground;
VL8-B: Phase A, Neutral A, Phase B, Neutral B, Phase C, Neutral C,
Neutral, Ground.
Disconnect the current probes.
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