ICP DAS Co., LTD
PM-4324 Series Quick Start V1.3
Page 2
2.
Installation
Please use the soft dry clothes to clean the instrument.
Please do not use any chemical or detergent or volatile solvents to clean
the instrument, in order to avoid any possibility of the cover damage.
Products come with external split type clip-on CT’s. Disconnect the CT’s
or use other CT’s is highly prohibited.
Please read this operation manual carefully before using.
Please re-confirm the measure position.
Reconfirm the RST (ABC) phase sequence of the power system.
Meter auxiliary power for PM-4324 series is AC +100V ~+240V.
2.1.
Voltage Input
1. PM-4324 series: Input Voltage up to 500V.
For any higher Input Voltage large than 500V, please add the PT (power
transformer), and Change PT RATIO setup.
2. Confirm the RST (ABC) phase sequence.
2.2.
Current Input
1. The external CT’s are fragile, please handle with care.
2. The current input of PM-4324 series is in mA 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)
3. When more than one smart meter (PM-4324 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-4324 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)
5. When measuring the current, the secondary circuit of a CT should
never be opened when a load is passing through its primary. Make
sure you always open the CT clip to detach the CT before removing
the terminal lines. Otherwise, it will cause severe injury.
6. Please handle with extra care, especially when the operation space of
CT’s is limited.
7. The current direction must follow K-L marked on CT’s.
8.
，
Φ16
～
Φ24 use 200A CT
，
Φ24
～
Φ36 use 300A CT or 400A CT
。
9. The maximum current value cannot exceed the CT rating.
