ICP DAS Co., LTD
PM-3133i Quick Start V1.00
Page 3
2.2. Voltage Input
1. PM-3133i series: Input Voltage up to 600V.
For any higher Input Voltage large than 600V, please add the PT
(power transformer), and Change PT RATIO setup.
2. Confirm the RST (ABC) phase sequence.
2.3. Current Input
1. The external CT’s are fragile, please handle with care.
2. The CT input of PM-3133i-xxxP series is in mV range.
Only the ex-factory attached CT’s can be used. The other CT’s, for
example, from panel will damage the instrument due to its large
current (around 5A or mA).
3. When more than one smart meter (PM-3133i series) are installed,
please do not disconnect the CT with its original meter and mix use
with each other. Since each set of smart meter (PM-3133i series)
and its attached split type clip-on CT are calibrated set by set. The
mix use may cause wrong measurements.
4. To install CT’s correctly, please ensure the CT lines sequences is
right before clip the CT’s onto the power cable of the monitoring
equipment. (Detail will be found in next section)
