ICP DAS Co., LTD
PM-3133i Quick Start V1.00
Page 4
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. Please select the right size CT’s for different size of monitoring
equipment cables:
power cable diameter
＜
Φ10 use 60A CT
，
Φ10
～
Φ16 use 100A
CT
，
Φ16
～
Φ24 use 200A CT
，
Φ24
～
Φ36 use 300A or 400A CT
。
9. The maximum current value cannot exceed the CT rating.
