• The world's leading production experience and NIST standard calibration enable each instrument to have high repeatability and comparability.
• The analog voltage output of all radiometers is proportional to the measured ultraviolet radiation value. In addition, compared to other radiometers, all 501 radiometers have an internal temperature control system to ensure their high accuracy.
• The analog output type can output a voltage proportional to the measured UV radiation. In addition, the 501 radiometer has internal temperature control, which provides higher accuracy compared to other instruments
• All products undergo calibration traceable to NIST standards before leaving the factory
• One year warranty period
• Lifetime free telephone technical service
• Can extend the warranty period

501 UVA is a fully plug and play system that includes outdoor compatible detectors, computer-controlled data loggers, and connecting cables. Easy to install and use.

spectral range:320-400 nm, close to the spectrum of erythema effect

measuring range:0 to 10 mW/cm2 

angle responseIdeal cosine of incidence angle within 5%

response time1 second (0.1 second can be requested)

temperature correction1% per ° C

RAF>1 (radiation amplification factor, 30 degree zenith angle, and 0.27cm ozone column)

operate temperature-40 to+50 ° C ambient temperature

operating environmentOutdoor or underwater (maximum depth of 15 feet or 5 meters)

weight: 2 lbs (0.9 kg) without cable

size: 5.5" H x 5.9" Diam. (14 x 15 cm)

cableDetector bottom sealing connector; 50 feet standard length, with a maximum length of 200 feet Can be ordered; Approximately 0.1 lbs per foot in weight

equipmentThree leveling brackets are fixed on the base; The detector is equipped with a circular level

Main features:

>Output: Digital (UV signal and sensor temperature)

>Data acquisition: A dedicated computer processing data logger with a LCD display screen, keypad, serial communication port, and parallel printing port, capable of connecting two detectors simultaneously, with optional analog output

>Dose cycle: Choose from 1 minute to 1 hour

>Internal memory: The memory can store up to 6 months of complete one hour dose and sensor temperature information for two detectors

>Data integrity: non-volatile memory; Built in rechargeable backup power supply; If the ambient temperature exceeds the specified value or there is no AC power supply, automatic temperature compensation will correct the data

>Communication: Compatible with any computer and equipment with RS232 serial port; equipped with an RS232 serial port; menu organized remote setup and data retrieval; User selectable baud rate 300-9600 bps

>Power supply: Universal 90-250 VAC, 50-60 Hz or 12 VDC

>Model 501 Recorder

> Temperature range: 0 to +50C

> Operating environment: Indoor, without condensation of water vapor