EA-1 Ethernet Adapter
EA-1 Ethernet Adapter


Ethernet Adapter

The EA-1 Ethernet Adapter turns your sensor into an Ethernet Laser Power Meter. Features include:

  • From sensor direct to Ethernet with no PC connection
  • Power direct from the Ethernet bus
  • Supports thermopile, photodiode and pyroelectric smart sensors
  • PC application software package included
  • Allows remote monitoring via Telnet, HTTP and UDP protocols
  • Log power and energy, average, statistics, histograms and more with included StarLab application
  • New: Low Frequency Power on Photodiode sensors - power measurement based on pulse cycle (for VCSEL)


  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • No
  • Ethernet, USB
  • No
  • Via Ethernet or included Power Supply
  • Yes
  • N/A
  • N/A
  • Yes
  • N/A
  • No
  • Yes
  • No
  • CE, China RoHS
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How is the EA-1 Ethernet Adapter powered?

The EA-1 can be powered directly from the Ethernet bus if PoE (Power over Ethernet) is available. If not, it can use a 12 24 VDC standard Ophir power supply.

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What is included in the box with the EA-1?

Besides the Ethernet Adapter itself, the package also includes:

  • Ethernet cross cable
  • USB-A to USB-Mini-B
  • 12 VDC power supply
  • CD (for PC application, manual, and drivers for using USB virtual COM port)
  • Brackets, screws, and an Allen wrench for mounting
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How can I control the sensor via the EA-1 device?

There are three ways to connect to the EA-1 adapter:

  1. Telnet:
    Establish a connection using the IP address of the EA-1. The host (e.g., PC) is considered the “client,” while the EA-1 is the “server.”
  2. HTTP:
    The IP address of the EA-1 should be entered into a regular web browser. This will show a top-level “web-page” with several buttons for accessing lower level pages. Commands can also be sent directly with the HTTP protocol. Client and server status are the same as above (Telnet).
  3. USB virtual COM port:
    For configuration and initialization only. This can be used to set the IP address for the first time or switch between dynamic and static IP address modes.

More details can be found in the EA-1 manual.

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Can I write my own software to work with EA-1 Adapter?

Yes. See chapter 6 of the manual.

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What sensors does the EA-1 Ethernet Adapter work with?

Thermal, photodiode, and BeamTrack (power/position/size) sensors; pyroelectric and photodiode energy sensors; standard and smart plug (“-SH”) OEM sensors. (Note that the OphirEthernetApp PC Application does not support BeamTrack, but BeamTrack can be controlled by using commands.)

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How do I set the IP address of the EA-1 Ethernet Adapter?

The device is shipped with these defaults:

IP Address ....................................
Subnet Mask .................................
Default Gateway ............................
User Device Name ......................... (blank)
IP Address allocation ...................... static (DHCP disabled)

The IP address can be set via HTTP, Telnet, USB virtual COM port, or the “OphirEthernetApp” software. See Chapter 2 of the manual for step-by-step instructions for each method.

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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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What is Ophir Statement of Volatility of Memory for EA1- Ethernet Adapter

See attached

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I need to embed the EA-1 Adapter into my laser system; can it be controlled from a PLC?

Yes it can. You can find a good set of guidelines in the following article: Tips using the EA-1 with a PLC. Complete instructions can of course be found in the EA-1 User Manual.

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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.


Ophir provides all the details for integrating the EA-1 device in the EA-1 user manual.


System Integrators will need the following components:

  • Standard mini-B USB cable (P/N 7E01217) for use with the EA-1 device (included).
  • Ethernet Cross Cable (P/N 7E01192) for use with the EA-1 device (included).



Product Feature: EA-1 Ethernet Adapter Product Feature: EA-1 Ethernet Adapter

Laser measurement over Ethernet…
The EA-1 Ethernet adapter enables you to connect an Ophir “Smart Sensor” to your Ethernet network.
In this video, you’ll get an overview of how you can integrate the EA-1 into your system, and use it to monitor and control your laser sensor remotely.


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


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? Read more...


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.
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    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)

  • USB MINI-B cable

    USB MINI-B cable


    Cable USB2.0 A MINI-B (1 unit supplied with the product)