Hioki 3286-20, Инструкция по эксплуатации

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Chapter 2 Measurement Procedure
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NOTE
2.4.4 Current (Frequency)
1. Press the
I/
key to activate current display mode.
In current display mode, the instrument will
indicate an effective value on Display 1, peak hold
value on Display 2, and frequency on Display 3.
2. Switch between Auto Range and Manual Range, as
needed. For details, see 2.3, "Range Setup."
3. Open the tip of the clamp core and clamp the
conductor roughly into the center of the clamp core.
4. Pressing the I/ key in current display mode resets
the peak hold value.
Be sure to clamp one conductor only. Measurement is not
possible for single phase or three phases when two or three
conductors are respectively clamped at the same time.
When only measuring current, there is no need to connect
the voltage cord.
Select the 1
φ
P meter, 1
φ
PF meter, or 3
φ
PF meter.
The instrument does not display polarities in a peak
measurement.
The peak hold value will not vary, unless a large value is
entered in the instrument. If the auto power-off function is
effective, the instrument will be shut down in about ten
minutes, causing the data to be lost. (See 2.11, "Auto
Power-Off Function.") One way to prevent data from being
lost is to disable the auto power-off function (see 2.9,
"SETUP Function") or to use the recording function.
For measurement extending the auto power-off time, use
the recording function.
To check variations in a peak value, enable the REC
function by pressing the
MAX/MIN
key, then activate peak
value display mode by pressing the I/ key.