Juno-RS
Virtual meter (PC-Interface) allowing connectivity of Ophir’s smart (DB-15) power and energy sensors to automation systems and computers using RS-232 communication
- Plug and play with all standard Ophir smart sensors
- Analog output in autonomous mode: Outputs voltage relative to measurement while connected standalone to a sensor.
- Robust connectors, suited for semi-industrial environment
- Advanced logging and data processing with included StarLab application
- Pulsed Power measurements with Thermopile detectors
- Low Frequency Power - power measurement from pulse cycle energy (for VCSEL)
Specification
- Yes
- Yes
- Yes
- Yes
- Yes
- Yes
- RS232
- No
- 12V Power Supply (Included)
- N/A
- 500Hz
- N/A
- N/A
- N/A
- No
- Yes
- No
- CE, UKCA, China RoHS
Catalog & Manuals
FAQ
How can I control Ophir USB speaking devices from the PC?
All USB speaking devices (EA-1, Juno, Juno+, Pulsar and USBI as well as the StarBright, Centauri, Vega, Nova-II, and StarLite Power and Energy Meters) can be controlled via our StarLab. This provides full remote control and measurement capabilities. In addition, system integrators can make use of the OphirLMMeasurement COM object for all of our USB speaking devices that are included in the application installation. Documentation and Examples in Visual Basic, LabVIEW are found in the "Automation Examples" sub-directory of your StarLab directory.
CloseWhat is the maximum number of sensors that can be connected via USB to one PC?
In theory USB supports up to 127 devices.
We recently had 12 sensors connected to StarLab, and it worked normally. The practical limitation is basically how many channels you can realistically see on the display (which would not be a limitation if you will only be logging the data), and of course the number of available USB ports/hubs.
What is the difference between the StarCom and StarLab PC applications?
StarCom is our legacy PC application which connects via RS232 (not USB), for old Ophir instruments having RS232 interface capability (Vega, Nova II, LaserStar and Nova). It performs all basic functions such as real-time data logging, saving data in PC file, off-line data viewing, printing, etc. For a relatively new computer, you'd have to check that it has a serial port to which to connect the meter. The last release of StarCom was in 2008, with all that this implies. StarCom should nevertheless be able to work on a Win7 32 bit PC. More information, including software download, is available at https://www.ophiropt.com/laser-measurement-instruments/laser-power-energy-meters/software/starcom.
StarLab is our full-featured PC application that connects via USB to all Ophir USB-speaking instruments (Centauri, StarBright, StarLite, Vega and Nova II meters, as well as Juno, Juno+, EA-1, Pulsar and the Bluetooth-enabled Quasar PC interfaces). In addition to all basic measurement and data logging functions, it also offers a wide range of special functions (including user-defined mathematical functions), multi-channel operation, COM Object for integration with external systems, etc. More information, and software download, is available at https://www.ophiropt.com/en/laser-measurement-instruments/laser-power-energy-meters/software/starlab.
CloseHow can I interface my Ophir Power Meter (Juno, Pulsar, NOVA II, Vega) to LabVIEW?
For customers using the new LabVIEW COM Demo, there is nothing additional to do. Just open it and get started. If writing your own LabVIEW application, make sure that the OphirLMMeasurement COM Object is included in your LabVIEW application
For customers using the legacy OphInstr LabVIEW package, here are additional clarification steps to assist establishing the interface to LabVIEW when connecting an Ophir meter such as the Juno/USBI/Nova II/Vega with the USB.
The sequence for preparing to interface the Ophir Juno (or meters connected through USB) with LabVIEW is generally as follows:
- Disconnect any Juno OPHIR Device from the PC
- Run SwapINF utility
- Set LabVIEW option On
- Press "Swap" button - You will be prompted to "Remove the Ophir Juno Devices before continuing"
- Press "OK" (you have already removed these)
- Press "OK" again (after SwapINF is done)
- Reconnect the Ophir Juno device to the PC that you wish to apply LabVIEW VI's on If asked by Wizard (i.e. in XP) to update software etc.
- Select "not this time" & press "next" button
- Again, press "next" (install software automatically)
From here on you may apply LabVIEW VI's on your device
CloseI see there is newer version of StarLab software available. Why should I upgrade?
Do I need to recalibrate my instrument? How often must it be recalibrated?
Logging data from multiple sensors: How “in synch” are the time stamps?
Sometimes an application requires logging power from multiple power sensors, and being able to compare readings from the different sensors; in such cases, it is necessary to know to what degree the time points of each “channel” are in synch with each other.
Possible solutions would be to use a 2-channel Pulsar, or for example 2 Juno/Juno+.
With Ophir power sensors, the logged data timestamps originate from the PC, with millisecond resolution, for both Pulsar’s and Juno/Juno+.
So basically there is no difference between a Pulsar and a Juno/Juno+ in that respect. They will perform the same.
Each measurement will have its own separate timestamp, and will not have the exact same zero point; however, they will be ‘synced’ to each other to within a millisecond or so. Keep in mind that with power measurements, the instrument’s A/D sampling rate of the power signal is 15Hz (i.e. every 66.67 msec), so for all practical purposes the 2 channels can be considered in synch with each other.
ClosePC 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.
User Commands
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.
Firmware - Juno-RS
Embedded Software for Juno-RS Interface
Latest Juno-RS firmware (version 1.04)
Use StarLab to upgrade the firmware of your device. Press Here for step-by-step instructions.
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
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.
- Juno-RS RS232 cable (P/N 7E11216) D9 Male/Female 1.8-2 meter cable (included with the Juno-RS).
Videos

This video explains the various items on the StarLab screen, and shows you how to perform basic laser measurements.
Part 1 of a series of video segments teaching you how to use StarLab.

If all your laser measurement work involves a laptop or a PC, rather than a stand-alone meter, one of Ophir’s direct-to-PC interfaces could be an ideal solution. These are full-fledged Laser Power and Energy meters, but instead of having a separate on-board display, the PC becomes your display. In this video you will learn about the range of PC Interfaces available from Ophir.

The new Ophir Juno+ enables you to connect your Ophir “Smart Sensor” to your PC via USB. Your PC then becomes a full-featured laser power meter, either running Ophir’s StarLab software application, or perhaps communicating with your own system via our “COM Object”. Get a glimpse of its capabilities in this overview video.
The new Ophir Juno+ enables you to connect your Ophir “Smart Sensor” to your PC via USB. Your PC then becomes a full-featured laser power meter, either running Ophir’s StarLab software application, or perhaps communicating with your own system via our “COM Object”. Get a glimpse of its capabilities in this overview video.
Tutorials
Power and Energy Meters: From Sensors to PC
Installing LabVIEW support for Ophir Power Meters and PC Interfaces
Longer Length Sensor Cables
The Ophir sensors are provided with a 1.5m cable between the sensor and the smart head connector. When a longer length cable is needed it can be provided, as long as it is within operational limits. However it is not possible to add an extension to the cable, because that moves the smart head connector away from the meter or interface unit which can degrade the smart head functionality or disable it.
 Прочитать подробнее…When you log energy from multiple sensors in parallel using StarLab, the time stamps in the various channels are synchronized with each other
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
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
Pulse Power Measurement: Measuring Instantaneous Power of a Short Pulse
5 Situations Where Laser Performance Measurement is Necessary
Specification
- Yes
- Yes
- Yes
- Yes
- Yes
- Yes
- RS232
- No
- 12V Power Supply (Included)
- N/A
- 500Hz
- N/A
- N/A
- N/A
- No
- Yes
- No
- CE, UKCA, China RoHS
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.
User Commands
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.
Firmware - Juno-RS
Embedded Software for Juno-RS Interface
Latest Juno-RS firmware (version 1.04)
Use StarLab to upgrade the firmware of your device. Press Here for step-by-step instructions.
Accessories
-
RS-232 Cable
7E11216D9 Male/Female 1.8-2 meter (1 unit supplied with the product)
-
Juno-RS Power Supply
7E05093Power Supply for Juno-RS (1 unit supplied with the product)
-
Juno-RS Analog Output Cable
7E01541Analog output cable for Juno-RS
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Extended Warranty for Power Meter
XWAR-METEROphir-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