Hioki Power HiTester 3193, Instruction Manual

Page: 59 / 310

41
────────────────────────────────────────────────────
4.5 Setting the Scaling (PT/CT/SC Ratios)
────────────────────────────────────────────────────
NOTE
･ For channel combinations of 1P3W and above, the PT ratio, CT ratio, or SC
ratio must be the same for all channels in the combination.
･
When the channel identifies a CT6862, CT ratio of the channel is set to 2.5,
as default. In this state, the current ranges are configured and the measured
values can be read off directly.
Display ranges: 「 1.25(A) / 2.5A / 5A / 12.5(A) / 25A / 50A 」
The default CT ratio is changeable. If you want to change this, please set the
value calculated by the formula: (your desired CT ratio x 2.5). For example,
when you want to set 40 as CT ratio, please set 100(=40 x 2.5).
When CT ratio other than 2.5 (including OFF) is being set, the current ranges
to be displayed are below.
Display ranges:
「
0.5A / 1A / 2A / 5A / 10A / 20A
」
The actual current range configuration with the CT ratio other than 2.5 can
be calculated by multiplying the set CT ratio by each of 0.5A, 1A, 2A, 5A,
10A, 20A.
･ When a CT6865 is used, please set it to CT ratio 2.
The display ranges are [10A/20A/50A/100A/200A/500A], but the range
structure is actually configured to be double the CT ratio after internal
computation.