Chino KP 2000 Series, Instructions Manual

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④ Setting the span correction value
･ Output, output value 100%.
･ If maximum value is positive as compared to ideal value, set the span correction value less than 1.0 and if
the value is negative, set the span correction value as 1.0 or more.
･
By referring to the digital multi-meter, set the span correction value such that it matches the ideal value.
⑤
Readjustment
･
Repeat the adjustment mentioned in clauses
③
and
④
a number of times till the indicator value is in the
permitted range.
⑥
Indicator check after correction
･
Perform this check in the same way as the indicator check (3 places) before correction and confirm that
there is no problem.
⑦
Precautions during scale correction of current output/voltage output
･
Current output and voltage output that exists in MV (output value) are adjusted such that they can be
output in a range slightly broader than the factory shipping status. In other words for current output, at the
time of 0% current is 4.0mA, adjusted to approximately 3.5 to 3.9mA and at the time of 100% current is
20.0mA adjusted to approximately 20.1 to 20.5mA. Normally in case of current output it is connected to
the operation terminal like thyristor regulator, but in order to operate it as operation terminal in a certain
range of 0-100%, eliminate the input error of those operation terminals. and make it such that it outputs in
some broader range.
･ Accordingly, we recommend that you adjust current output and voltage output which is MV (output value)
can be adjusted to some low value for 0% and some high value for 100%. However adjust the
transmission output exactly to the standard value without considering such things.