Yokogawa

Yokogawa has been developing measurement solutions for over 100 years, consistently finding new ways to give R&D teams the tools they need to gain the best insights from their measurement strategies. As well as offering a wide ranging product lineup and an extensive range of calibration and other services, the company has pioneered accurate power measurement throughout its history, and is the market leader in digital power analyzers.

Yokogawa instruments are renowned for maintaining high levels of precision and for continuing to deliver value for far longer than the typical shelf-life of such equipment. Yokogawa believes that precise and effective measurement lies at the heart of successful innovation – and has focused its own R&D on providing the tools that researchers and engineers need to address challenges great and small.

Yokogawa takes pride in its reputation for quality, both in the products it delivers – often adding new features in response to specific client requests – and the level of service and advice provided to clients, helping to devise measurement strategies for even the most challenging environments.

Contact Details

North America Headquarters - Texas

Yokogawa Corporation of America

12530 West Airport Blvd.

Sugar Land, TX 77478

Phone: (281) 340-2800

Sales: (800) 888-6400

Technical Support and Service: (800) 524-7378

Fax: (281) 340-3838

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Products

Yokogawa - 1000 Amp Peak Current Transformer System IST

Yokogawa - 1000 Amp Peak Current Transformer System IST

The Current Transformer System consists of a 19 Inch Rack Mount Power Supply/Signal Conditioning unit, from one to six CTs, and a 5-Meter Signal Cable and for each CT. *1

Yokogawa - 200 Amp Peak Current Transformer System IST

Yokogawa - 200 Amp Peak Current Transformer System IST

  • 200 Amp Peak Current Transformer System consisting of a 19 Inch Rack Mount Power Supply/Signal Conditioning unit, from one to six CTs, and a 5-Meter Signal Cable for each CT. *1
  • Note: The Ct60, CT200 and CT1000 Current Sensors, along with the 751574 Current Transducers are not sold in North America. Select a Precision Current Transformer from the list below.

Yokogawa - 2000 Amp Peak Programmable Current Transformer System ITZ

Yokogawa - 2000 Amp Peak Programmable Current Transformer System ITZ

The Current Transformer System consists of a 19 Inch Rack Mount Power Supply/Signal Conditioning unit, one CT Head, 5-Meter Signal Cable and 10-Meter Connecting Cable. *1

Yokogawa - 2240 Current Transformer Series

Yokogawa - 2240 Current Transformer Series

The Model 2241-00 is a Precision Current Instrument Transformer for use with high accuracy Power Analyzers and Ammeters.

Yokogawa - 2553A Precision DC Calibrator

Yokogawa - 2553A Precision DC Calibrator

The 2553A Precision DC Calibrator, like our other Calibrators and Sources, offers users the simple operation and reliability they have come to trust from Yokogawa.
  • Digital Display of Output
  • High Basic Accuracy
  • High Stability and Low Noise
  • High Resolution
With output ranges of ±10 mV to ±30 V and ±1 mA to ±100 mA plus 10 different types of Thermocouples and Pt100 RTD, the 2553A can effectively solve the calibration requirements for DC Analog Meters and various temperature measuring instruments and controllers.

Yokogawa - 2558A AC Voltage Current Standard

Yokogawa - 2558A AC Voltage Current Standard

The 2558A AC Voltage Current Standard offers users the simple operation and reliability customers have come to trust from Yokogawa.
  • Sweep (Voltage/Current/Frequency)
  • Output Divider
  • Direct Readout of the Deviation
  • Digital Display of Output
  • Common Current Output Terminals
  • High Accuracy
  • High Stability
  • Wide Output Range
  • Wide Frequency Range
The wide output ranges of 1.00 mV to 1200.0 V AC and 1.00 mA to 60.00 A AC mean that the 2558A is the instrument of choice for the cost effective calibration of AC analog meters. Rotary controls and a range of computer interfaces enable the 2558A to be intuitively operated through the frontpanel or controlled by an ATE system.

Yokogawa - 2560A High Voltage and High Current Precision DC Calibrator

Yokogawa - 2560A High Voltage and High Current Precision DC Calibrator

The Model 2560A is a simple, precise and cost effective solution for calibrating DC measuring instruments such as analog meters, thermometers, temperature transmitters and data loggers
The 2560A Precision DC Calibrator offers high voltage and high current generation and intuitive operation for the analog meters calibration.
  • Wide output range of voltage and current generation
  • Dials and switches for each digit and function
  • High accuracy, stability, and resolution
  • Various effective functions for analog meters calibration.
With output ranges of 100 mV to 1000 V and 100 µA to 30A, plus 10 different types of Thermocouples and Pt100 RTD, the 2560A can effectively solve the calibration requirements for DC Analog Meters and various temperature measuring instruments and controllers.

Yokogawa - 257875 RJ Sensor

Yokogawa - 257875 RJ Sensor

For reference junction compensation sensor. Pt100, 1.95 m

Yokogawa - 322610 Leakage Current Tester (Analog)

Yokogawa - 322610 Leakage Current Tester (Analog)

Handy Universal tester for checking electrical appliance
Leakage Current Tester (AC/DC)

Yokogawa - 400 Amp Peak Current Transformer System IST

Yokogawa - 400 Amp Peak Current Transformer System IST

400 Amp Peak Current Transformer System consisting of a 19 Inch Rack Mount Power Supply/Signal Conditioning unit, from one to six CTs, and a 5-Meter Signal Cable for each CT. *1

Yokogawa - 5000 Amp Peak Current Transformer System ITZ

Yokogawa - 5000 Amp Peak Current Transformer System ITZ

The Current Transformer System consists of a 19 inch Rack Mount Power Supply/Signal Conditioning Unit, one CT Head, 5-Meter Signal Cable and 10-Meter Connecting Cable. *1

Yokogawa - 51000 Series Digital Lux Meters

Yokogawa - 51000 Series Digital Lux Meters

  • Wide measurement range, high accuracy
  • Spectral response characteristics for visible range
  • Good oblique incident light characteristics
  • USB communication and USB power supply
  • Recorder output

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  • Three-phase power quality recorder fully compliant to IEC 61000-4-30 Class-A and consistent with compliance testing
  • Uses GPS time synchronization to correlate data with events or datasets from other instruments with precision
  • Offers flexible and fully configurable thresholds and scale factors to allow users to define detailed criteria for detecting and recording disturbances


  • Optional magnetic hanger for easy set-up and viewing while freeing your hands for other tasks
  • Large digit display with bright, two-level backlight makes the 83V significantly easier to read than older models
  • 6000 counts, 3-3/4 digits
  • Measure up to 1000 V AC and DC
  • Measure up to 10 A, 20 A for up to 30 seconds
  • Frequency to 200 kHz and % duty cycle
  • Resistance, continuity and diode test
  • 10,000 µF capacitance range for components and motor caps
  • Min/Max-Average recording with Min/Max Alert to capture variations automatically
  • Relative mode to remove test lead interference from low ohms measurements
  • Auto and manual ranging for maximum flexibility
  • Touch Hold to capture stable readings avoiding noisy signals
  • Large display digits and two-level bright white backlight for increased visibility
  • Analog bargraph for fast changing or unstable signals
  • Input Alert provides audible warning against wrong use of input jacks
  • Improved selectable sleep mode for long battery life
  • Access door for fast battery changes without breaking the calibration seal
  • "Classic" design with new removable holster with built in test lead and probe storage
  • Lifetime warranty
Electrical safety
All inputs are updated to the 3rd edition of ANSI/ISA S82.01 and EN61010-1 CAT IV 600 V and CAT III, 1000 V. They can withstand impulses in excess of 8.000 V and reduce risks related to surges and spikes.
  • Measure AC current with an optional current clamp accessory


  • Fully Class-A compliant: Conduct tests according to the stringent international IEC 61000-4-30 Class-A standard
  • GPS time synchronization: Correlate data with events or datasets from other instruments with precision
  • Flexible and fully configurable thresholds and scale factors: Allows user to pinpoint specific issues by defining the detailed criteria for detection and recording of disturbances.
  • Uninterrupted power supply (40 minutes): Never miss important events - even record the beginning and end of interruptions and outages to help determine the cause
  • 10 MHz, 6000 Vpk waveform capture: Get a detailed picture of even the shortest event
  • 2 GB data memory: Enables detailed, simultaneous recording of numerous power parameters for long periods of time
  • Comprehensive software included: Provides trend diagrams for root cause analysis, statistical summaries, report writing and real-time data monitoring in the online mode
  • Plug and play: Allows quick setup with automatic sensor detection; sensors are instrument powered, eliminating the need for batteries
  • Rugged field design: Insulated housing and a solid state design with no rotating components enable reliable testing under nearly any conditions


  • 320 x 240 resolution
  • 2 meter drop test
  • IR Fusion™ technology for context
  • Fixed focus
  • Measure up to 400 °C


  • Power quality statistics according to EN50160
  • Voltage event list (dips, swells and interruptions)
  • Continuous recording of:
    • Voltage
    • Current
    • Power P, Q, S
    • Power factor
    • kWh
    • Flicker
    • Unbalance
    • Frequency
    • Voltage and current harmonics to the 50th / Interharmonics
    • THD
    • Mains signaling
  • Triggered recordings
  • Online mode (Oscilloscope, transients and events)
  • 2 GB Flash memory