UVX Radiometer 5
General Instructions
Introduction
Your new UVX Digital Radiometer from UVP allows measurement of UV intensities quickly and easily.
The digital readout is in radiometric units with a broad dynamic range from 0.1 µW/cm
2
to 20 mW/cm
2
with
accuracy and precision traceable to the National Institute of Standards and Technology (NIST). The
sensors, for measuring UV radiation at 254, 310 and 365nm, are cosine corrected. Each sensor is also
pre-calibrated and quickly interchangeable with any other sensor without affecting the overall system
accuracy.
Designed for simplicity and durability, the UVX is built with the latest in solid state electronics, has a
rugged housing, over-ranging, and low battery indicators. By using circuitry that is powered by a single 9V
transistor battery, UVX is completely portable. It can be used in a wide variety of research and industrial
applications. Some typical applications using UV light sources are: genetic experiments, photochemical
reactions, sterilization procedures, optical lab measurements, experimental biology, dermatology
research, NDT techniques, and graphics procedures.
The UVX Series Sensor that is supplied with this unit, as well as all other UVX Series Sensors, is
designed and calibrated for measurement of radiant incidences from line type and phosphor coated
mercury arc sources. There are several parameters including calibration, spectral response and sensor
field of view which users should understand to insure accurate measurements. Refer to the Applications
Techniques section of this manual, which addresses these subjects.
Features
The following is a list of features provided by the UVX Radiometer and Sensor:
• Three sensitivity ranges covering the span from 200 µW/cm
2
to 20 mW/cm
2
• 3-1/2 digit liquid crystal display readout
• Sensitivity down to 0.1 µW/cm
2
• Outstanding ruggedness and reliability
• Negligible sensitivity to infrared
• Linearity of
± 1% over the total range, ± one digit
• Readout and sensor are stored in their own storage and carrying case with room for
one additional sensor
• Light weight
• Powered by a single 9V transistor battery
• Long battery life (more than 120 hours of continuous operation with a single alkaline
battery)
• Automatic low voltage battery indication
• Not sensitive to capacitive or AC pick up
• Fully interchangeable sensors for full UV band coverage
• Automatic circuit that tests the display each time the unit is turned on
• Read/Hold switch that allows holding any reading indefinitely
• Automatic reverse battery connection protection circuit
• Calibration of sensors is traceable to NIST through a standard lamp and proven
laboratory techniques
• Independent calibration of all sensors and digital radiometers allowing complete
interchangeability without reference to individual calibration factors
• Remote sensor of small size permitting measurements to be taken in constricted
areas
• Three foot long electrically shielded connecting cable
•
1/4-20 UNC-2B threaded mounting hole compatible with standard tripod mount screws
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