Introduction
Copyright © Itech Electronics Co., Ltd.
1
Chapter1 Introduction
1.1 Brief Introduction
The IT9121 power meter can provide the maximum input of 600Vrms and
20Arms and the measurement bandwidth of 100KHZ and thus can be easily
used for measuring the parametersincluding voltage, current, power, frequency
and harmonics. Standard configuration includes USB, GPIB, RS232 and LAN
communication interfaces and also the interface for USB peripherals. The user
can store the measured parameters in the external storage medium. The
voltage and current precision is 0.1%. The instrument also has many integral
functions, such as the active power. The product can be widely applied in
motors, household appliances, UPS and other test fields.
Features
4.3-inch color liquid crystal display (TFT)
The number of matrix columns to be displayed on the screen and the
commonly used measurement parameters can be set freely.
Input range:600Vrms/20Arms
The voltage, current, power, harmonics and other parameters can be
measured at the same time.
The precision of voltage and current measurement is up to 0.1%.
It has the harmonic measuring function and can measure 50-order
harmonic components at most.
With the interface for USB peripherals, the user can store the interface in
the external storage medium.
With many powerful integral functions, the bought/sold electricity can be
calculated.
Frequency measurement function
Built-in USB, GPIB, RS232 and LAN communication interfaces
Application advantages
Analysis of UPS power quality:
As an important backup power supply in the communication industry, the
steady-state characteristics, dynamic characteristics, power quality and
other parameters of UPS should be analyzed. With internal nonlinear
elements, the UPS power supply will generate a large number of harmonic
components during operation, which may affect operation of the
communication system. The IT9121 power meter can measure such
parameters as the AC/DC signal, power factor, harmonics, frequency and
distortion factor, and systematically and comprehensively analyze the
performance of the UPS power supply.
Test of performance of household appliances:
With promotion of the concept of using energy in a rational and
environmentally friendly manner, more and more household appliances
adopt the variable frequency control technology to reduce the power
consumption. The IT9121 power meter can measure the inrush current,
active power, crest factor, etc.
