Centauri Laser Power Meter & Energy Meter Ophir
Centauri Laser Power Meter & Energy Meter Ophir
Centauri back panel

Одноканальный измерительный прибор Centauri

Современный измеритель мощности и энергии лазера
  • Совместим со всеми стандартными датчиками Ophir: тепловыми, BeamTrack, пироэлектрическими и фотодиоднымиs
  • Большой полноцветный сенсорный экран с диагональю 7 дюймов
  • Доступны модели с одним и двумя каналами
  • Возможность выбора следующих вариантов дисплея: цифровой с гистограммой, аналоговый игольчатый, линейный график, диаграмма «Пульс», удача/неудача, расположение, устойчивость, статистика в режиме реального времени.
  • Двухканальные приборы поддерживают функцию разделения и объединения графических экранов
  • Усовершенствованная регистрация мощности и энергии, включая регистрацию каждой точки при частоте до 10 000 Гц с использованием пиродатчиков
  • Математические функции для расширенной обработки, например плотность, коэффициент масштабирования, нормализация относительно базовой линии и т. д. Возможность совместного использования нескольких функций и графического отображения результатов. Результаты выполнения функций также можно регистрировать в журнале
  • Функция «Математический канал» позволяет сравнивать измерения, полученные с помощью двух каналов
  • Обновление встроенного программного обеспечения в условиях эксплуатации с помощью USB-накопителя
  • USB-накопитель большого объема для хранения данных
  • измерения мощности импульсов с помощью термоэлектрических датчиков
  • Измерение экспозиции (суммирование энергии) с помощью фотодиодных и пироэлектрических датчиков
  • Компактный настольный корпус с прорезиненными амортизаторами и оптимизированной откидной опорой
  • Подсветка и перезаряжаемый аккумулятор
  • масштабируемый аналоговый выход, выходные сигналы от транзисторно-транзисторных логических схем и вход внешнего триггера
  • Динамик для звукового оповещения


  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • 1V,2V,5V,10V
  • RS232, USB, Ethernet*
  • Yes
  • Yes*
  • Yes
  • N/A
  • Yes
  • N/A
  • As per USB Flash Drive used
  • Yes for USB
  • Yes
  • CE, UKCA, China RoHS
*Ethernet communication with Centauri will be available in a future release.
Need help finding the right sensor? Try our Поиск датчиков


Will the Centauri meter work with old pyroelectic sensors that are not the C style?

No. The pyroelectric sensors must be the PE-C type sensors to work with the Centauri meter.

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Will the Centauri meter work with PD300RM and BC20 sensors?

No the Centauri meter will not work with PD300RM and BC20 sensors.

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I purchased a Single Channel Centauri, yet it has an additional sensor input socket labelled Channel B. How do I get this second input to work so that I can attach, measure and compare with two sensors simultaneously?

The Single Channel Centauri is actually a Dual Channel Centauri with the second Channel B disabled.
You can field upgrade a Single Channel Centauri to a Dual Channel Centauri by purchasing a Dual Channel Activation Code, ordering P/N 7Z11056.
The code number received is then entered by the user in the Instrument Settings to enable the second channel.

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I don't see my exact wavelength in the wavelength option for my Ophir sensor. I only see several wavelength ranges. What should I do?

Select the range that contains your wavelength. The sensors have coatings on them that have been characterized and for any wavelength within that range the sensor will be within calibration tolderance including variations in sensitivity within that range. When there is a difference in sensitivity that exceeds the allowable tolerances, a new wavelength range is created and a calibrated for.

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I can understand why a power meter sensor needs to be recalibrated, but why do I have to have my Power and Energy Meters recalibrated?

Think of it like a voltmeter or ammeter, these have to be recertified/recalibrated as well like most other pieces of test equipment. In general, our instruments are unlikely to drift or fail over time like a sensor might that is constantly exposed to laser energy. But the possibility exists. So the general practice in our industry is to have Power and Energy Meterss recalibrated and recertified as well. ISO standards and FDA, as well as other agencies, require both be recalibrated and recertified.

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What is the Ophir meter zeroing and when should it be performed?

In all Ophir instruments, all adjustments, including zeroing internal circuits, are done from the software. This ensures simple and accurate realignment. The zeroing process helps eliminate internal biases in the unit which could affect accuracy of measurements. It is recommended to re-zero the instrument every 2 months for best performance. Specific instructions for doing this are found in the relevant User Manual for each instrument.

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Do I need to recalibrate my instrument? How often must it be recalibrated?

Unless otherwise indicated, Ophir sensors and meters should be recalibrated within 18 months after initial purchase, and then once a year after that.

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How do I use the Analog Output of a meter to get a reading of power? And how accurate is it?

The analog output of the meter - using the mating connector provided – gives a voltage signal proportional to the actual reading (it is in fact just a D/A translation of what is being displayed), so it represents a fully calibrated reading. The full scale value is a function of the meter being used and the power range it is on. With the StarBright, Vega and Nova II, for example, the user can select full scale analog output voltage ranges of 1v, 2v, 5v or 10v, and the 100% level of the chosen power scale is scaled to the full scale voltage. For example: if you choose 5V full scale analog voltage range, and your sensor is set to a 50W full scale power range, then you will have 5V = 50W or 0.1 V/W. It will vary according to the chosen power range and chosen full scale voltage range. The electrical accuracy is stated in the specification (see the User manual) as ±0.2% (of reading) ±0.3% of full scale volts (in addition to the calibration accuracy of the sensor’s reading itself).

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How often should I zero my power meter?

For the best accuracy and repeatability, each Ophir meter should be zeroed with no sensor connected periodically. It would not hurt to zero the meter each time it is used, but we recommend to zero the meter at least once a month. See your meter User Guide for the zeroing procedure particular to your meter. To view or download a copy of the meter User Guides, follow this link: https://www.ophiropt.com/laser-measurement-instruments/laser-power-energy-meters/services/manuals.


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Why wasn’t the firmware upgraded to the latest version when the meter was sent in for recalibration?

Our recalibration process is to not automatically upgrade the firmware in meters when they are sent in for recalibration, unless specifically requested to upgrade it. The reason for this is that we support many companies, such as medical companies, that have equipment validation processes that don’t allow changing the firmware version from the currently validated version. If you do want the latest firmware version installed, we will do that at no additional charge (for meters which are upgraded electronically) if it is specifically requested on the RMA request checklist form. For older meters (such as the Nova) that are upgraded through changing the EEPROM, a nominal fee is added, if firmware upgrade is requested. Note; upgrading the firmware does not affect the calibration.

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Can I buy a universal power adapter/charger for my Ophir display?

Yes. We now offer a switching universal power adapter/charger for the Ophir displays. It is part number 7E05029.

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My meter seems to be charging normally, but it lasts for less than an hour on battery power. Does the battery need to be replaced?

Yes, the battery needs to be replaced. A new battery should last 8 hours per charge. We recommend that you send the meter back for battery replacement and recalibration. User battery replacement is possible. For battery part numbers and ordering information, go to https://www.ophiropt.com/laser--measurement/spare-parts.

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Which types of USB Flash Drives are suitable for use with the Centauri?

For firmware upgrade and logging purposes, use USB Flash Drives of up to 32GB storage capacity, formatted as a FAT32 file system only. (Not exFAT nor NTFS).
Larger capacities, or differently formatted USB Flash Drives will not work with the Centauri.

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I cannot have any type of battery operated units in my facility. Can I use my Centauri meter without the battery installed?

Yes. The meter will then come on automatically when the power supply is connected, without pressing the ON button. The idea is intended for when a meter is integrated into a larger machine, so that when the machine is powered up, the meter also comes on without having to have physical access to the buttons on the meter.

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  • PC Software & Drivers

    This section describes various ways to interface the Ophir meter to your PC as well as the software options available.


  • StarLab

    The StarLab application together with an Ophir meter turns your PC or laptop into a full-fledged laser power/energy meter. Supports most Ophir laser power/energy sensors. Up to 8 sensors can be displayed at once on one PC. By using the Ophir COM Object, you can control the device from your own application. Supports the Ariel, Centauri, StarBright, StarLite, Juno, Juno+, Juno-RS, Nova II, Vega, Pulsar-1/2/4, Quasar, EA-1 and IPM sensor devices.

  • LabVIEW

    Library supplied for a complete measurement interface with most of our USB speaking devices (Centauri, StarBright, StarLite, Juno, Juno+, Nova-II, Pulsar, Vega). Makes use of our new COM object.


  • Simple Measurement.vi

    Program for those who want to use Centauri connected to IS1.5-VIS-FPD-800 or IS1.5-IRG-FPD-800 integrating spheres with LabVIEW 2017.
    Note: In order to work with the application example, it is necessary to install the LabVIEW runtime engine 2017, downloadable from the National Instruments website.

  • Firmware - Centauri

    Embedded s/w for Centauri Laser Power / Energy Meter
    Latest Centauri firmware (version 2.11)

    : Firmware update is performed by downloading the files into a USB Flash disk from Ophir website and connecting it to the Centauri (see link above).
    The firmware can't be updated via StarLab.

System Integrators

Besides their use as stand-alone, fully featured laser power/energy meters, Ophir devices are easily incorporated into larger end-user applications. This allows system integrators to leverage Ophir’s excellence in measurement capabilities with legacy analysis packages.
RS232 communication is the simplest to integrate into your OEM application. Integrated Development Environments (IDE’s) such as Microsoft Visual Studio provide functions and methods for accessing the PC’s com port.
The following is all that you need to get your RS232 applications up and running

  • User Commands contains an alphabetical listing and detailed description of all commands available with the Juno, Juno+,  Juno-RS, Pulsar, Centauri, Nova-II, Vega, StarLite, and StarBright devices.
  • Centauri RS232 cable (P/N 7E01213). Included with the Centauri.

Ophir provides a common interface for communication and control of all of our USB speaking devices. OphirLMMeasurement is a COM Object that is included as part of the StarLab installation (StarLab 2.10 and higher) that allows the system integrator to take control of the Juno, Juno+, Nova-II, Pulsar, Vega, Centauri, StarBright and StarLite devices; integrating them into his in-house measurement and analysis package.

System Integrators will need the following components:

  • OphirLMMeasurement COM Object.pdf lists and describes the methods and events available for configuring, controlling and uploading measurements from Ophir devices.
  • OphirLMMeasurement.dll. COM object component developed and supplied by Ophir for communication with the Juno, Juno+ Nova-II, Pulsar, Vega, Centauri, StarBright and StarLite devices. The COM object is registered when the application is installed.
  • OphirLMMeasurement COM Object.pdf describes how to register it on another PC where the Ophir application has not been installed.
  • Standard micro-B USB cable (P/N 7E01279) for use with the Centauri device (included).
  • Ophir provides example projects of COM Object clients in VC#, VB.NET and LabVIEW. These are found in the Automation Examples subdirectory of our StarLab PC Application.
  • For direct control of the device, refer to User Commands.


Centauri: A new experience in laser measurements - Narrated Centauri: A new experience in laser measurements - Narrated
Video Series: Centauri Video Series: Centauri Video Series: Centauri

This series of short videos will help you learn to use the Centauri, Ophir's New Advanced Touch-Screen Laser Power Meter.

Part 1 - Using the Centauri Meter: Overview Part 1 - Using the Centauri Meter: Overview Part 1 - Using the Centauri Meter: Overview

This series of short videos will help you learn to use the Centauri, Ophir's New Advanced Touch-Screen Laser Power Meter.

Ophir’s new high-end, 7" color touch-screen dual channel laser power/energy meter


Tutorials and Articles

Ophir Power/Energy Meter Calibration Procedure and Traceability/Error Analysis

This document discusses the interpretation and basis for stated measurement accuracy of Ophir Laser Power/Energy meters.
1. General Discussion
2. Combination of Errors and Total Error
3. Analysis of Power and Energy Calibration Errors
4. Detailed Analysis of Power and Energy Calibration Errors

 Прочитать подробнее…

Laser Measurements in Materials Processing: How and When They Absolutely, Positively Must Be Made

19th century British physicist and engineer William Thomson, 1st Baron Kelvin, was the first to say, “If you can’t measure it, you can’t improve it.” When applying this principle to improving laser-based processes, there are a variety of parameters that must be measured. Given the continuously rising power of laser systems in material processing, the requirements for measurement systems are more challenging than ever. Which technologies are available to measure high-power lasers? How often should they be measured? What measurements should be tracked? When this data is collected, what should be done with it? Прочитать подробнее…

How do I know what range, or scale, to set my power/energy meter to? And what happens if I go over range?

Each given range represents one level of gain of an internal amplifier. The electronics, as always, have a limited Dynamic Range. If the measured signal is too low, in other words near the bottom of the range, then it may be lost in the noise and the reading will be inaccurate and noisy. If it’s too high – there may be saturation issues. To give an instrument a usefully wide dynamic range, multiple scales or ranges are used. Switching from range to range can be automatic (“Autorange”), or manual. Autoranging simply starts automatically at the least sensitive range and works its way down the ranges, sampling the signal as it goes, till it finds a range at which the signal is properly detected. Note, by the way, that only in POWER mode is Autoranging available. If we are working in Single Shot Energy mode, there is no Autoranging – simply because when we are measuring a single pulse, the instrument has no opportunity to work its way down the ranges as in Power mode.

 Прочитать подробнее…

White Paper – Low Frequency Power Mode

AbstractThis document describes the inherent problems involved with measuring average power for low frequency pulsed laser sources, and describes the new “Low Freq. Power Mode” being offered on many Ophir devices and meters to solve these problems. It describes how to use the new mode and mentions some tips for obtaining best results. Прочитать подробнее…

Pulse Power Measurement: Measuring Instantaneous Power of a Short Pulse

You can now measure high average powers using moderate power sensors, using a new feature in the StarBright meter called “Pulse Power Measurement”. Thermopile sensors are often used to measure single shot pulse energy; the instrument can easily calculate instantaneous pulse power from this if it knows the pulse width (since power = pulse energy / pulse width). With the StarBright set to “Pulse Power” mode (supported from StarBright firmware version 1.30), the user enters the length of the pulse, fires the pulse, and StarBright then displays the instantaneous power Прочитать подробнее…

5 Situations Where Laser Performance Measurement is Necessary

Measuring the performance of a laser has possible for a number of years and is accomplished with a variety of techniques. These electronic laser measurement solutions give the laser user more relevant, time-based data that shows trends in laser performance rather than single data points. While these solutions have provided laser users with the ability to present data in a simple and easy to understand manner, the application of the data still seems to be unclear to many laser users. Прочитать подробнее…

Power and Energy Meters: From Sensors to PC

From the time of its invention, more than 30 years ago, the laser power meter was generally comprised of two parts: a measurement sensor and a display meter. It was always considered better to have such an arrangement with a cable connecting the two because of the hazardous nature of the laser beam. As the display of the results is separated from the measurement sensor, so are the eyes of the operator separated from the laser beam. Прочитать подробнее…


Customers that purchase the above items also consider the following items. Ophir-Spiricon meters and sensors include a standard manufacturers warranty for one year. Add a one year Extended Warranty to your meter or sensor, which includes one recalibration.
  • N Polarity Power Supply/Charger

    Power Supply/Charger for Centauri, Vega, Nova II, LaserStar, Nova, EA-1, Pulsar, Quasar, 6K-W, 120K-W and fan cooled sensors (1 unit supplied with these products)

  • Standard Analog Output Connector

    Used as analog output plug for Centauri, StarBright, StarLite, Vega, Nova II, Nova, and Juno+ (1 unit supplied with these products).
    For Centauri Only – 2 additional units are supplied to be used for external trigger and TTL output.

  • Extended Warranty for Power Meter


    Ophir-Spiricon meters and sensors include a standard manufacturers warranty for one year. Add a one year Extended Warranty to your meter or sensor, which includes one recalibration. More info