61
6. Others
Instrument Operation
■
The
instrument operation in other than operating mode
Situation
Measurement
Display
For a few seconds just after turning on
auxiliary power
*The backlight is lit and the LCD is not lit.
Not measure
Not display
In the setting mode
In the setting confirmation mode
In the password protection screen
The action is the same
in the operating mode.
Not display a
measured value
Under power failure
Not measure
Not display
■
The
instrument operation under input
Measuring element
Instrument action
Current (A)
Current demand (DA)
The CT secondary current setting is 5 A.
When input current is below 0.005 A (0.1%), 0 A is
displayed.
When the upper limit of display range (9999)
is exceeded, the upper limit (9999) is
displayed.
The CT secondary current setting is 1 A.
When input current is below 0.005 A (0.5%), 0 A is
displayed.
Voltage (V)
When input voltage (Line voltage) is below 11 V, 0 V
is displayed.
・
For 1-phase 3-wire system, when the voltage
between P1 and P3 is below 22 V, 0 V is displayed.
・
For 3-phase 4-wire system, when phase voltage is
below 11 V or line voltage is below 19 V, 0 V is
displayed.
When the upper limit of display range (9999)
is exceeded, the upper limit (9999) is
displayed.
Active power (W)
Reactive power (var)
Apparent power (VA)
・
When each of three phases of current is 0 A or
when each of three phases of voltage is 0 V, 0W, 0
var, and 0 VA are displayed.
・
When current N-phase is 0 A or when voltage N-
phase is 0 V, 0 W, 0 var, and 0 VA are displayed for
each N-phase.
When the upper limit of display range (9999)
is exceeded, the upper limit (9999) is
displayed.
Power factor (PF)
・
When each of three phases of current is 0 A or when each of three phases of voltage is 0 V, 1.0
is displayed.
・
When current N-phase is 0 A or when voltage N-phase is 0 V, 1.0 is displayed for each N-phase.
Frequency (Hz)
・
When voltage 1-phase is low voltage, - - - - is
displayed.
Apply a voltage above approximately 22 V.
When frequency is below
44.5
Hz and
above 99.5 Hz,
- - - - is displayed.
Harmonic current
For RMS value measurement:
・
When current is 0 A, 0 A is displayed. (for each
phase)
・
When voltage 1-phase is 0 V or when frequency is
below 44.5
Hz,
- - - - is displayed for every phase.
For distortion ratio (content rate)
measurement:
・
When harmonic current 1
st
is 0 A, 0 A is
displayed. (for each phase)
・
When voltage 1-phase is 0 V or when
frequency is below 44.5
Hz,
- - - - is
displayed for every phase.
Harmonic voltage
For RMS value measurement:
・
When voltage is 0 V, 0 V is displayed. (for each
phase)
・
When voltage 1-phase is 0 V or when frequency is
below 44.5
Hz,
- - - - is displayed for every phase.
For distortion ratio (content rate)
measurement:
・
When voltage is 0 V, - - - - is displayed.
(for each phase)
・
When voltage 1-phase is 0 V or when
frequency is below 44.5
Hz,
- - - - is
displayed for every phase.
Operating Time
When the count exceeds 999999-hour, it is fixed at 999999-hour.
Note1: Current/voltage/active power input represents input to the instrument. It does not input to the primary side of VT/CT.
Note2: The expression of
‘When current is 0 A’ includes the case when the measured value described in the item of Current
(A) is 0 A.
Note3: The expression of
‘When voltage is 0 V’ includes the case when the measured value described in the item of
Voltage (V) is 0 V.
Note4: Use the instrument within the rating of the instrument.
