UV Radiometer / Photometer (ASTM)

Readout Unit Specifications

• Display: 4.5 digit LED
• Conversion Rate: 3 readings per second nominal
• Resolution: 1 part in 1,999
• Temperature Coefficient: ±(0.025% of reading +0.1 digit)/°C (0 to 50°C)
• Case Dimensions: 7.25L x 3.5W x 2"H (18.4L x 8.9W x 5.1cmH)
• Total Net Weight: 1 lb. (0.45kg)

Sensor Head Specifications

• Overall accuracy: Better than ±5% with reference to NIST standards
• Spectral Range: 320-400 nanometers (nm)
• Measuring Range: 0-19,990 µW/cm2
• Resolution: 10µW/cm2
• Filter: High quality, vacuum-deposited, interference type
• Angular Response: Cosine
• Temperature Coefficient: ±0.20%/°C (0 to 50°)
• Power requirements: 4 non-rechargeable "AA" size alkaline battery cells are included as standard. 4 rechargeable "AA" size nicad battery cells and a recharger are available as an option

Reference Conditions:

• Temperature: 23°C ± 1°C
• Relative Humidity: 30 to 60%
• Atmospheric Pressure: 575 to 800mm Hg to 7,500 ft. (2,286m) altitude
• Sensor Head Dimensions: 3L x 2W x 0.7"H (7.6L x 5.1W, 1.8cmH)
• Sensor Cord Length: 3 ft. (0.9m)

• Calibration: Certified to NIST (National Institute of Standards and Technology) standards.
• Complies With: ASTM specifications for MPI and FPI applications.

• Precision Measurement: Measures UV-A irradiance with an accuracy of ±5%, eliminating infrared interference.
• User-Friendly Design: 4½-digit LED display with auto-zeroing and a battery-level indicator for hassle-free operation.
• Rugged Construction: Sealed photodiode and baffle design prevent light leakage, ensuring reliable readings in harsh conditions.
• Portable Power: Operates on four AA batteries, enabling field use without the need for external power sources.

• DM-365XA UV Radiometer Photometer readout unit
• Sensor Head with a special diffuser-sensor window for cosine response
• 4 x AA Alkaline Batteries (pre-installed)
• User Manual for easy setup and operation