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PR-655 SpectraScan® Spectroradiometer
Unique Design
For nearly 15 years, the PR-650 SpectraScan has been the most widely used spectroradiometer in the world - the workhorse of the industry. The new PR-655 replaces the world renowned PR-650 with a plethora of enhancements. This unique, portable battery powered instrument utilizes a fast-scanning 128 detector element spectrometer with a spectral resolution of 3.12 nm per pixel and is supplied with an automated measure shutter. A 1° aperture is standard equipment with the PR-655 - an optional ½° aperture can be ordered. Other hardware features include AutoSync® for automatically synchronizing to the source refresh rate insuring the utmost accuracy, an external trigger port allowing remote measurement activation from either a push button or perpherial device, a Secure Digital (SD) port for measurement storage, and a long lasting rechargeable Lithium-Ion (Li-Ion) battery.
Easy to Use
The PR-655 menus are accessed via the on-board, 2.25" x 3" high resolution, full color touch screen LCD display and 5-way navigation keypad. Following a measurement, the PR-655 displays data and color spectral graphs on the system display. The PR-655 design provides stand alone operation - no PC required. The PR-655 can be also controlled via the world famous SpectraWin 2 software or the using text based commands (Remote Mode). All communications are visa the standard USB interface or the optional Bluetooth or RS-232 interface.
Flexibility
The unique design of the PR-655 makes tasks such as spectrally based photometric and colorimetric measurements, source spectral power distribution, dominant wavelenth and correlated color temperature quick and simple.

For applications other than radiance or luminance the PR-655 can be supplied with optical accessories such as a cosine receptor for irradiance / illuminance, LR-127 LED Analyzer for testing LED's to CIE 127, fiber probe for remote non-line-of-sight luminance testing, and a series of magnification lens for small spot size analysis. In fact, all of the accessories available for the PR-650 SpectraScan can be used on the PR-655. An RGB option is available that provides an interactive method for display white point calibration based on spectral measurements.
Wide Dynamic Range
The PR-655 provides a dynamic range of 0.2 fL to 30,000 fL, without the need for any external neutral density filters. Ideal for contrast and brightness measurements of display panels and a wide spectrum of other target devices.
Connectivity
It's easy for the PR-655 to talk to the outside world - it comes equipped with USB and Bluetooth® (optional) wireless interfaces. It is supplied with text based, Remote Mode syntax and a driver that emulates an RS-232 interface (COM: port) making it a simple task to generate custom programming to perform specific tasks or for inclusion in an ATE environment. If required, an optional traditional RS-232 Interface can be added.
In this page
Overview
Typical Applications
Specifications
Measurement Spot Size & Luminance Range
Software Options
System Options
Optical Accessories
Miscellaneous Accessories
Printer Friendly Page
PR-655 Brochure
PR-655 Dimensions
Information Request
Product Registration
* NEW * The patented LR-127 LED Analyzer is an optical accessory designed to test discrete LEDs to CIE 127 Technical Report - Measurement of LEDs.
PR-655 / PR-670 / PR-680 Product Comparison
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