Built upon Yokogawa’s history of developing superior sourcing instruments, the LS3300 is an AC signal generator capable of outputting both current and voltage simultaneously, thus allowing it to calibrate power measurement instruments such as current clamps/transformers, panel meters, RMS multimeters, and power meters. The LS3300 boasts 78.5kW per unit, with user-configurable current, voltage, frequency and phase settings. New features include a high definition LCD display, a vector diagram, and the ability to synchronize up to three units to emulate anything from single phase two wire to three phase four wire systems.
Your go-to solution for accurate and reliable calibration of AC power measurement devices
The LS3300 features ease of use, powerful dedicated functionality, and high precision sourcing capabilities.
Ease of Use
- Featuring an intuitive interface, users can quickly and easily adjust the voltage, current, frequency and phase values to suit their application.
- A high definition LCD display allows for clean and clear data visualization
Dedicated Functionality
- Armed with various functions perfectly tailoried for power measurement verification ranging from signal ramping, stepping, and triggering to synchronization for multi-phase power generation
- Vector display for tracking current/voltage phase relationships
- DC output for testing shunt inputs on power meters
- Software to automatically verify economy-class power meters and generate calibration reports
High precision sourcing capabilities
- Independently source voltage and current sine waves into the kilohertz range with a high degree of accuracy and resolution
- High test uncertainty ratio with most economy class power meters and measuring devices make it a trusted reference for instrument verifiication and callibration
24 Hour Stability Chart
The LS3300 is a single-phase AC power calibrator that can generate highly accurate, stable, and wide range output current and voltage. New features include an LCD display and a “STABILIZING function” which shows that the output signal is stabilized for calibration efficiency.
Guaranteed accuracy for every situation
V/I/P Accuracy
AC Voltage: ±350 ppm
AC Current: ±450 ppm
AC Power: ±450 ppm
At 1 year, 10 ppm = 0.001%
Phase Accuracy
±0.03º at 50/60 Hz
Between the Voltage and current outputs when used alone.
High Stability
AC voltage, current: ±50 ppm/h
AC power: ±100 ppm/h
From 1 minute to 1 hour after the output is turned on.
Wide generation range
AC voltage: 10 mV to 1250 V
AC current: 0.3 mA to 62.5 A
Frequency: 40 to 1200 Hz
Support for any and all types of power measurement devices
Single to three phase power calibration
A single LS3300 AC Power Calibrator unit supports 1P2W, and multiple LS3300 units support 1P3W, 3P3W and 3P4W. It can calibrate AC voltage/ current, active/reactive power, power factor and phase angle.
Wiring system setting
Current value setting
Synchonization for multi-phase calibration
Control and output of three phase power
Multiple LS3300 AC Power Calibrators can be synchronized through BNC cables. The host can then connect all units to the master unit via a USB cable and adjust settings simultaneously through the master/slave communication. Users can set the values of voltage, current, power, power factor, wiring, and phase from the front panel of the master unit and view each phase in a phase chart in the LCD. Checking the output of each unit from the master unit during three-phase output is done by navigating to [CONFIG] > [Unit] key > menu.
Example of 1P3W and 3P3W
Example of 3P3W (three voltage three current) /3P4W
(1) Outputting balanced three-phase signals
In the case of balanced phase signals, when users modify settings on the master unit, values on the slave units are set accordingly. Synchronous communication allows output setting changes on the master unit to be migrated to the slave unit. If a fault such as an overload occurs in the slave unit, this information will be conveyed to the master unit, and a shutdown of the output is initiated.
(2) Outputting unbalanced three-phase signals
In the case of unbalanced phase signals, users set the conditions of a balanced state for the slave units on the master unit. Then they change the phase setting into single phase and manually set conditions of the unbalanced phase state of each phase on the slave side.
On-Site calibration service
Other power calibration systems in the market utilize a master/slave interface where-in the slave units cannot be operated standalone for single phase output. Each LS3300, on the other hand, is capable of both independent single phase output, as well as synchronized three phase output. Its excellent portability enables feasible on- site calibration service.
Large current output up to 180 A
When users synchronize three units and connect their output in parallel, the system can output up to 180 A, when [Hi Current] is specified in the Wiring menu. LS3300 supports devices requiring large current such as a current sensor, smart meter, etc.
Support calibration of shunts and DC inputs
Diversification of the calibration equipment by AUX output
A large current sensor used for industrial equipment and a clamp-on power meter used to monitor energy-saving are widely used in the power measurement market. When a clamp-on power meter unit or external current sensor input (voltage output) is calibrated, an AUX terminal is used. The voltage output range of the auxiliary output is 0 to 6.25 V.
Users can select either the 500 mV or 5 V range according to the range of a current sensor input.
Endless array of features to simplify calibration of power measurement devices
LCD for enhanced viewing capabilities
The LS3300 is equipped with a 5.7-inch color LCD. It shows the wiring and power settings, as well as the phase chart of the generated waveforms, allowing users to quickly and easily view the instrument settings (as seen below). Users are also able to view the unit information such as the serial number, firmware version information, and communication settings in the UTILITY menu.
The values of voltage, current, active power and reactive power specified according to the level, level ratio and power factor are displayed as output values.
Reduced calibration times
(1) Notification of output stabilization
To improve working efficiency, the LS3300 is equipped with a function for notifying the user that the output is stable. When the STABILIZING indicator disappears from the LCD (two seconds later), it means that the output has stabilized. This reduces time spent working with transient signals that affect measurement accuracy.
Safety features during calibration
(1) High voltage notification
This function notifies users of dangerous high voltage conditions when using high voltage ranges (300 or 1000 V). When the voltage output is set to 150 V or higher, the device beeps intermittently to notify users.
(2) Trip detection
If a connected load causes the output range to be exceeded, the Yokogawa LS3300 detects the abnormal load conditions to protect itself. This function monitors the error of overcurrent, overvoltage, oscillation, fan malfunction and temperature.
(3) LINE synchronization
The output frequency of this product can be synchronized with commercial power frequency. This feature is useful in verifying interferences from the power source.
(4) Calibration software
The LS3300 calibration software allows a user to automatically run through the quality inspection standards tests for WT series power meters, as well as generate a report indicating PASS/FAIL, tolerance levels, and percentage error
Support for all commonly used communication interfaces
Communication interface
The LS3300 AC Power Calibrator is equipped with USB, Ethernet and GP-IB as standard communication interface to control external devices remotely.
