The PR-524 is the next generation in portable, hand-held photometry. It combines illuminance and luminance measurement capabilities with cutting edge technology by featuring a 1.5" x 2.3" back-lit touch screen display, USB interface, Secure Digital (SD) card slot for measurement storage, multiple measuring head capability and rechargeable Li battery. The only button on the PR-524 is the Measure button.
Features
Back Lit / Touch Screen Display
All instrument set-up, measurement setup and file operations are performed via menus on the touch screen display. The built-in back light makes it convenient for working in dark ambient environments.
USB Interface
The PR-524 can be controlled from a PC over the built-in USB interface. We've also included an ASCII based Remote Mode control language and driver that emulates a serial (COM:) port. For example, the PR-524 you can control using Windows HyperTerminal.
Secure Digital Storage
Over 50,000 measurements can be stored on the 32 MByte Secure Digital (SD) card supplied with the PR-524.
Multiple Measuring Heads
If your application requires a multi-spot measurement such as projector uniformity, the PR-524 can be fitted with up to 15 remote measuring heads - all under the control of a PC communicating with the base unit over the USB interface. Each remote detector is individually addressed.
AutoSync� Source Rate Synchronization
For the measurement of non-DC sources, the PR-524 will automatically determine the source refresh or update rate and automatically adjust the PR-524 measurement parameters insuring accurate and repeatable measurements.
Remote Trigger
When it is necessary to either perform a hands off measurement or to measure a flashing source such as a camera flash, the PR-524 can be triggered remotely, and once triggered, will send a pulse to the remote source. Or, it can be used simply as remote trigger.
Luminance Measurements
For luminance measurements, the optional PR-522 SpotMate replaces the standard illuminance accessory. The PR-522 features true Pritchard Optics for unambiguous target alignment capability and can be provided with one of four measuring fields (apertures )- 2�, 1�, �� or ��. For luminance measurements that are inaccessible to line-of-sight measurements, an optional fiber probe accessory can be utilized and for applications where it is necessary to make measurements of self emissive devices in an environment where the ambient light cannot be extinguished, a contact measurement Micro Reader Probe accessory can be employed. The PR-524 and the PR-522 can be ordered as a system, the PR-520
Remote Mode
If you need to include the PR-524 into an ATE environment, we provide software that creates a COM port when the PR-524 is connected to your PC using the USB interface. Simply send a command string to the virtual COM port using ACII characters and the PR-524 will perform the measurement and return the data requested in the command string. This capability, unique among hand held portable photometers, gives you complete control of the instrument and data returned from the measurement.
Applications
- Area Illumination
- Projector Output
- Architectural Lighting
- Projector Uniformity
- Screen Brightness
Standard Equipment
- PR-524 with cosine corrected measuring accessory
- Lithium-ion battery (charges inside PR-524)
- AC Adaptor
- Carrying Case
- Multi Media Card (MMC)

