Posted in | News | Control Systems

New Precision AC Voltage Instrument by Yokogawa

The Yokogawa 2558A is a new precision AC voltage/current standard that offers a simple stand-alone solution for the calibration of measuring instruments and power sensing devices including power meters, clamp meters and current transformers.

The 2558A offers exceptionally high accuracy – 0.04% on AC voltage and 0.05% on AC current – and a choice of wide output ranges from 1.00 mV to 1200.0 V AC and 1.00 mA to 60.00 A AC (expandable to 120 A by using two units in parallel).

Operation is intuitive, with front-panel rotary dials and switches for each function and each digit of the 4½-digit display. A sweep function, output divider and internal phase shifter are incorporated, and a range of computer interfaces enables the 2558A to be incorporated in an automatic test system in a production environment.

Yokogawa 2558A precision AC voltage/current.

The instrument operates over a wide frequency range from 40 to 1000 Hz with a frequency accuracy of: ±50 ppm, including the provision of fixed frequencies of 50/60 Hz (commercial) and 400 Hz (marine and aviation). The high frequency accuracy also enables it to be used to calibrate frequency meters.

Multiple 2558As can be synchronised using the internal phase shifter, allowing two instruments to be used as accurate sources of voltage and current for calibrating power meters. An output divider enables linearity tests to be carried out efficiently.

Dials and switches are provided for each digit and function, and traditional 7-segment LEDs provide clear visibility. When the deviation dials are adjusted to check the full scale value on the meter, the deviation from the main output setting is displayed as a percentage of full scale.

With the sweep function, the output (voltage, current or frequency) can be swept from 0% to 120% of the main set value with sweep times of 16, 32 or 64 seconds. This function is particularly useful for carrying out “sticking” tests on analogue meters and indicating instruments. Using the internal phase shifter, a complete power calibration system can be assembled using two 2558A units and one power meter.

Typical users include calibration laboratories as well as suppliers of panel meters, indicating instruments, analogue testers, clamp meters, protection relays and current and power transducers.

The Yokogawa 2558A is a compact bench unit measuring 132 high × 426 mm wide × 400 mm deep and weighing approximately 20 kg.

About Yokogawa Test & Measurement

Yokogawa Test & Measurement Division is a major worldwide force in the test & measurement market, with products that include oscilloscopes, power meters and optical communications test equipment, portable test instruments, recorders and data-acquisition systems.

About Yokogawa Electric Corporation

Yokogawa's global network of 88 companies spans 55 countries. Founded in 1915, the US$4 billion company conducts cutting-edge research and innovation. Yokogawa is engaged in the industrial automation and control, test and measurement and other business segments.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Yokogawa Test & Measurement. (2019, February 24). New Precision AC Voltage Instrument by Yokogawa. AZoSensors. Retrieved on February 21, 2024 from https://www.azosensors.com/news.aspx?newsID=6755.

  • MLA

    Yokogawa Test & Measurement. "New Precision AC Voltage Instrument by Yokogawa". AZoSensors. 21 February 2024. <https://www.azosensors.com/news.aspx?newsID=6755>.

  • Chicago

    Yokogawa Test & Measurement. "New Precision AC Voltage Instrument by Yokogawa". AZoSensors. https://www.azosensors.com/news.aspx?newsID=6755. (accessed February 21, 2024).

  • Harvard

    Yokogawa Test & Measurement. 2019. New Precision AC Voltage Instrument by Yokogawa. AZoSensors, viewed 21 February 2024, https://www.azosensors.com/news.aspx?newsID=6755.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit
Azthena logo

AZoM.com powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Azthena logo with the word Azthena

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from AZoNetwork.com.

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.