PHOTO RESEARCH®, Inc. The PR-810 / PR-805 Pritcharcf® and Spotmeter® New Instrument, Traditional Excellence For over 60 years, Photo Research has had a rputation of manufacturing world class photometers that serve mar- kets ranging from aerospace to agriculture. The new PR-810/805 are one in a new family of filter photometers that further extends and enhances our reputation. As with all our photometers, the PR-810/805 feature the Pritchard optical system for unparalleled target alignment. With the Pritchard system, the alignment and measuring optics are one in the same, so there is no misrepresentation of what is being measured. New Design The PR-810/805 is unlike any of our previous photo-multiplier tube (PMT) based photometers - it's bat- PR-810 Pritchard Photometer tery powered! The Lithium-ion battery provides more than 12 hours of continuous operation provid-ing the ultimate in portability. It also features a full color touch screen display, and 75 mm objective focusable from 14" (355 mm) to infinity (see lens specifications on following page). Sensitivity Measurement Low light applications are no problem for thePR-810/805. Using the 03-21-2008 03:48:34 pm largest of the 4 fully automated apertures, the PR-810 can measure 1E-4 (0.0001) footlamberts, the PR-805 can measure down to 9E- 4 (0.0009) footlamberts with the standard 1° aperture . A fully auto-mated Neutral Density (ND) filter turret provides 3 decades of source atenuation (10X, 100X and 1000X attenuation) resulting in 9 Million:1 dynamic range in any aperture - wide enough for any Luminance 10.60 cd/m' contrast measurement task. Connectivity For help in communicating with the outside world, the PR-810/805 are supplied with a USB interface and driver. The driver establish- Back Abort Line es a virtual COM port making control of the PR-810/805 as easy as Measurement Result Screen communicating over RS232. If a traditional RS232 interface is a must, it can be supplied to complement the USB I/F. Want to go wireless? A Class 1 Bluetooth interface can be added for control of the PR-810/805 up to 100 meters away. For control of the PR-810/805, an on-board protocol - Remote Mode Software - allows you to make measurements and get the data you need by sending and receiving simple ASCII text commands making integration into an ATE or other environment a snap. Applications Features Benefits Full Color Touch Screen Display Easy-to-use menu based software Wide Dynamic Range Address almost any display measurement requirement USB Interface Connects to virtually any PC Bluetooth ready (optional) Wireless, remote data transfer Long lasting rechargeable Li-Ion battery Excellent for field use SD Card Storage Save thousands of measurements Display luminance and color Medical / dental color testing Contrast Reflectance / transmittance Automotive and Aerospace Display Testing Human factors