PM
-
3133 User
’s Manual v1.09
Last Revised: Jun. 2021 Page: 64
Copyright © ICP DAS Co., Ltd. All Rights Reserved.
E-mail: service@icpdas.com
Q6. PC and meter cannot make the connection with RS-485
？
(1) Confirm the Modbus Address, default is 1.
(2) Confirm the Band Rate, default is 19200.
(3) Confirm the stop bit, default is 1.
(4) Confirm the RS-485 connection, make sure the D+/D- is right.
(5) Confirm the RS-485 master have to provide the bias for PM-3133 series. Otherwise,
the tM-SG4 or SG-785 should be added to provide the bias. All ICP DAS controllers
and converters provide the bias.
Q7. What the power cable diameter (mm) of the monitoring equipments should be for
the various CT’s?
Power cable diameter
＜
Φ10 use 60A CT
，
Φ10
～
Φ16 use 100A CT
，
Φ16
～
Φ24 use
200A CT
，
Φ36 use 300A CT
，
Φ36 use 400A CT
Q8. Regarding to the split type clip-
on CT’s, if the wire is not long enough?
Φ10, Φ16, Φ24 split type CT
，
the standard length is 1.8M.
Φ36 split type CT
，
the standard length is 4M.
For special length, please contact ICP DAS.
Q9. How to measure the current large than 400A?
