Sanwa DCL1000, Инструкция по эксплуатации, Страница: 12 / 23

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Remove the test leads from the measuring terminals to avoid electric shock.
WARNING
5-2 Current (ACA) Measurement
Function Max rated input value Range
ACA AC 1000A 400.0A, 1000A
Remarks:
• This meter is of average value response.
Frequency range: 50/60 Hz (Sinusoidal wave AC)
• If vibration noise occurs in the clamp sensor (CT) part when
measuring a large current above 100 A, it is not a failure.
• For accuracy when the indicated value is 15% of the range or
less, 8 dgt is added to the accuracy shown in 8-2.
• An induction error below 0.06 A/A may occur due to influence of
current flowing in adjacent conductors.
• It may malfunction when measuring voltage/current in the inverter circuit.
A guide for a range of conductor positions for accuracy
guarantee
When an object is measured at the center of the clamp sensor
(CT), the specified accuracy (see 8-2) can be obtained. In other
places of conductors to be measured, the accuracy is as follows:
A area: 4% is added to the specified accuracy.
B area: 1% is added to the specified accuracy.
Center
A
B
ACA measurement
SW position
Accuracy
guaranteed area
DCL1000_英本文_三 06.4.14 6:55 PM ページ 9