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1. Features
This instrument measures the load status by inputting the secondary side of the VT and CT, and
displays various measurement values.
In addition, telemonitoring can be done by a variegated output function.
■Various Measurement Parameters
Phase wire system
Current
A
Current demand
DA
Voltage
V
Active power
W
Reactive power
var
Apparent power
VA
Power factor
PF
Frequency
Hz
Active energy
Wh
Reactive energy
varh
Harmonic current
HI
Harmonic voltage
HV
Refer to the followings in this manual.
Average value: AVG
Total RMS
:
As for voltage, the phase to phase is described "L-L", the phase to neutral is described "L-N".
■Element simultaneous display of four measurements by large-scale bar graph and digital three-stage display.
With the combination of bar graph and digital three-stage display, four measurement items can be displayed
at the same time. Main measurements (A, V, W, PF) of the incoming panel can be displayed at the same time.
And A
, A
, A
and A
AVG
1
2
■Higher dimension measurement monitoring function by measurement ASIC of original our company.
Measuring elements are current, voltage, active power, reactive power, apparent power, power factor and
frequency. In addition, it can measure harmonics and count active energy (imported, exported) and reactive
energy (imported lag, imported lead, exported lag, exported lead).
■Conformity with the CE Marking standards.
This instrument conform with the EMC standard (EN61326-1:2006) and the LVD standard (EN61010-
1:2001).
■Small & Flexible.
Its dimension is 96 96mm of DIN size, the depth is 86mm, smaller than the previous model.
And, it does not need the onerous specification of phase wire system when it is ordered because three phase 3-
wire or the three phase 4-wire can be set in the set up mode.
In addition, because the output option can be installed later, it is possible to hold down initial investment to a
phased system expansion plan.
■Remote Input/Output Functions.
It can expand the remote input/output functions to the ModBus communication. It can observe the state of five
digital inputs and control two digital outputs with the electric power monitor. And, because the latch function
is provided in the remote digital input and the pulse signal of 30ms or more can be maintained, it is possible
to use it as an input monitor of the OCR alarm of ACB.
■Test Functions.
It can make sure the check of wiring and the check of monitor program of system with the test functions of
analog outputs, pulse outputs, alarm outputs and reply of communication data if there is no measurement
input at the start-up of the equipment.
Three phase 4-wire
A
, A
, A
, A
, A
1
2
3
N
AVG
DA
, DA
, DA
, DA
, DA
1
2
3
N
V
, V
, V
, V
12
23
31
LLAVG
or
V
, V
, V
, V
1N
2N
3N
LNAVG
W, W
, W
, W
1
2
var, var
, var
, var
1
2
VA, VA
, VA
, VA
1
2
PF, PF
, PF
, PF
1
2
Imported lag, Imported lead, Exported lag, Exported lead
HI
, HI
, HI
, HI
1
2
3
THD, h
HV
, HV
, HV
1N
2N
THD, h
ex) Average value of current : A
Three phase active power : W
ex) Phase 1 to phase 2 voltage: V
Phase 1 to neutral voltage : V
can be displayed at the same time, also.
3
AVG
3
3
3
3
Hz
Imported, Exported
N
, h
, h
, h
, h
, h
, h
(RMS, Distortion ratio)
1
3
5
7
9
11
13
3N
, h
, h
, h
, h
, h
, h
(RMS, Distortion ratio)
1
3
5
7
9
11
13
AVG
12
1N
Three phase 3-wire
A
, A
, A
, A
1
2
3
AVG
DA
, DA
, DA
, DA
1
2
3
AVG
V
, V
, V
, V
12
23
31
LLAVG
W
var
–
PF
HI
, HI
, HI
1
2
3
HV
, HV
12
23
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