KW8M Eco-POWER METER (1A/5ACT input type)
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4.2 Setting Mode Explanation
■
The value with under line is initial setting among each setting value.
☆
Set before measurement.
4.2.1 MODE1
(Mode for setting each parameter for power measurement.)
Phase/Wire system setting mode
SYST
Mode defines phase and wire system to measure.
・
Select from Single-phase 2-wire / Single-phase 3-wire / Three-phase 3-wire / Three-phase 4-wire.
*When 1P3W or 3P3W is selected, it doesn’t measure 1P2W system correctly. And when 3P4W is
selected, it doesn’t measure 1P2W, 1P3W, 3P3W system correctly. Select the accurate phase and wire
system according to the measured system.
CT type setting mode
CT-T
Mode defines input current type of CT.
・
Select from 1A / 5A.
・
When the secondary side current of CT is 5A, select “5A”.
Primary side current of CT setting mode
CT-1
Mode defines primary side current of using CT, its secondary side current of 1A or 5A.
It is necessary to set the primary side current of using CT.
・
Primary side current of CT can be set the range of 1 to 4000 (Initial 5).
・
When connecting 5ACT directly and measure with 5A range, set to “5”.
ex) If primary current of measured CT is 400A (secondary side is 5A), set to “400”.
Voltage range setting mode
VOLT
Mode defines voltage range of Eco-Power Meter.
・
Select from 400/200.
・
When it measures load of 400V system, select “400”.
When it measures load of 100/200V system, select “200”.
*In case measuring the load of 100/200V system with selecting “400”, the resolution will be down.
Select the correct voltage range.
VT setting mode
VT
Mode defines voltage input method to the main unit, input voltage directly or uses a voltage
transformer (VT) (over 440V system).
・
It can be set the range of 1.00 to 99.99.
“1.00” should be set when voltage input directly without connecting VT.
“1.01 to 99.99” should be set when VT is used to input voltage.
*When input voltage is under 5% of rating, it displays “0.0” and doesn’t measure. (“Under 5%” means
the value getting from this calculation “rated voltage 200(400) x 0.05 x VT ratio”.)
Current for time measurement setting mode
HM-A
Mode defines current ratio for time measurement. It measures ON-time and OFF-time according
to the setting.
・
It can be set the range of 1.0% to 100.0%F.S.
ex) When 10.0 is set, the current exceeds 10.0%F.S is measured as ON-time, the current under
10.0%F.S is measured as OFF-time.
*Measured current is the current of L1(CT1)-phase.
Cutoff current setting mode
CUTA
Mode defines load current that does not measure (Cutoff current).
Use to avoid miss-measurement by wiring or induction noise at no-load.
0.00kW is displayed for instantaneous electric power, 0.0A is displayed for current. Integral
electric power is not added.
・
It can be set the range of 1.0% to 50.0%.
ex) When set to 10.0, current under 10.0%F.S is not added.
