User Manual
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Product Features Functions/Displays Applications Software Comparisons Explanations Specifications
Up to the 500th order harmonic can be measured at
a 400 Hz fundamental frequency. Also, up to the
255th order harmonic can be measured at 1 kHz. Up
to 150 kHz harmonic measurements are supported
for aircraft testing that requires high order harmonic
measurements.
WTViewer is application software that allows you to read
numerical data measured with a WT1800 Precision Power
Analyzer to a PC via Ethernet, GP-IB, or USB communication,
and display and save the numerical values.
Up to 12 power inputs can be measured simultaneously in
synchronized measurements between two units. Also, the
ability to collect data of up to four WT1800 units allows you
to measure the conversion efficiency, power, and power loss
of up to 24 power inputs.
n Integrated Power and Harmonic Distortion Factor
Measurements
The WT1800 is capable of measuring long hours of integrated current (Ah) and power (Wh) in
order to understand the amount of power consumption. It is not only possible to measure
50/60 Hz AC signals, but also perform high precision DC measurement indispensable for the
DC power supply evaluation. Also, the /AUX option input allows you to monitor heat
generation, etc.
In addition, a DA output function (/DA option) allows you to output analog signals to an
external recorder (ScopeCorder, etc.) and perform long hours of monitoring of current and
power along with the temperature and other data.
n Multi-channel synchronized measurements using
WTViewer
WT1
800
-ID
2
Synchronization cable
(BNC-BNC cable)
Note: Make sure the model and suffix codes of the two units are the same.
ID2P1ID1P1
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* Memory media (USB storage device) is required.
Measurable number
of units
FTP server
function
GP-IB connection
Ethernet
communication
USB communication
1 to 4 units
1 to 4 units
1 to 4 units
×
×
760122 WTViewer Software760122 WTViewer Software
COMING SOON
Harmonic Measurements
of Aircraft Power Systems
Harmonic Measurements
of Aircraft Power Systems
Power Measurements of
Green IT Data Center Servers
Power Measurements of
Green IT Data Center Servers
P
G
G
s#OMPUTATIONSETTINGEXAMPLES
Inverter discharge efficiency ID1P
∑
A/ID1P1×100[%], Converter charge efficiency ID2P1/D2P
∑
A×100[%]
Inverter charge efficiency ID1P1/ID1P
∑
A×100[%], Motor efficiency ID1Pm/ID1P
∑
A×100[%]
Up to 20 inverter/converter efficiency
computations can be set.
Overview
N
ew
l
arge
d
ata centers
b
ase
d
on c
l
ou
d
comput
i
ng are
b
e
i
ng constructe
d
w
hil
e
the importance of ener
g
y conservation is
g
rowin
g
. Since the WT1800 is
capable of measuring up to 6 power inputs, the current and power
consumption of up to six servers can be measured with a single unit. The
s
tandard
G
P-IB, U
S
B, and Ethernet communication functions allow the o
p
erator
to monitor data in multiple locations by collecting data via communication.
Overview
High order harmonic measurements are important in the aircraft industry.
The WT1800 provides a function to measure up to 150 kHz harmonics and
all
ows
y
ou to measure u
p
to t
h
e 500t
h
or
d
er
h
armon
i
c.
Advantages of WT1800 Advantages of WT1800
*An external input terminal (EX) allows you to measure both direct input measurement and clamp measurement.
*Direct input and current sensor input cannot be connected simultaneously.
*For detailed specifications, see the page on the specifications. You need to provide a cable for voltage measurements when wiring.
WT1805-50-H-HE/G5/MTR × 2 units: 5 power inputs, current input range 100 μA to 5.5 A (using a current sensor), or clamp measurement (with a clamp input terminal), harmonic measurement
Typical Product Configuration
*For detailed specifications, see the page on the specifications.
You need to provide a cable for voltage measurements when wiring.
WT1806-60-H-HE/G6/DA: 6 power inputs, current input range 100 μA to 5.5 A (measurement
using a current sensor), dual harmonic, DA output
Typical Product Configuration
*For detailed specifications, see the page on the specifications.
You need to provide a cable for voltage measurements when wiring.
WT1806-06-H-HE/EX6/G6/DA: 6 power inputs, current input range 10 mA to 55 A, or clamp
measurement (with a clamp input terminal), dual harmonic, DA output
Typical Product Configuration
150 kHz
harmonic
150 kHz
harmonic
Harmonic
distortion factor
Harmonic
distortion factor
Integrated power
DC current ±0.05%
Integrated power
DC current ±0.05%
Integrated
current
Integrated
current
12-power
measurements
12-power
measurements
400 Hz
fundamental wave
Up to the 500th order
400 Hz
fundamental wave
Up to the 500th order
1 kHz
fundamental wave
Up to the 255th order
1 kHz
fundamental wave
Up to the 255th order
Two-unit
synchronized
operation
Two-unit
synchronized
operation
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n Measurement of up to the 255th order component
even at a 1 kHz fundamental wave
(/G5 and G/6 options)
11