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UVA Meter Solarmeter Model 4.0 Standard

SKU: 810705

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Short Description

Solarmeter 4.0

  • Compact

  • Handheld

  • Durable

  • Simple Single-Button Operation

  • NIST Traceable Accuracy

  • LCD Display

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Solarmeter® Model 4.0 Standard UVA Meter

Handheld Digital UVA Radiometer with Integral Sensor

Monitoring UV Lamp Intensity and Aging
Measuring Outdoor UVA
Testing Acrylic Shield Transmission
Testing Eyewear UVA Blocking Capabilities
Testing Window Film/Tint Transmission

The sensor consists of a GaAsP photodiode and a UV filter. It is completely insensitive to visible light longer than 400nm and infrared radiation, because its spectral response only covers the UVA region from 320-400nm.

Meter Operation
To operate your Solarmeter, aim the sensor window located on the top panel of the meter directly at a UV source. Press and hold the push-button switch on the face of the meter. Reading represents IU/ min D3 on 10% body surface.
Battery operation voltage is viable from 9V down to 6.5V. Below 6.5V, the numbers on the LCD display will begin to dim, indicating the need for battery replacement. Under typical service load, a standard 9V battery will last approximately 2 years.

Proper Usage of Solarmeter® Ultraviolet Radiometer
• Wear eye protection when checking UV lamps. Glasses that provide wrap around protection are ideal.
• Allow lamps to warm up prior to taking readings (at least 5 minutes).

Lamp Aging
• When checking lamp aging, make sure to use the same location and distance to ensure accurate readings.
• Lamps should be replaced when output drops to about 70% of their original (new) readings.

Curing Lamps
• For curing lamps, hold the meter at the distance you intend your work piece to be cured.

Tanning Lamps
• To take the overall reading at the center of the tanning bed, place meter pointing up with canopy closed.
• To take individual lamp readings, hold the meter against the acrylic with canopy open.
• This meter is “seeing” the UVA “browning” rays. For erythemal readings use Model 7.0 MED/hr meter.

Sunbed Acrylic Testing
• For acrylic testing, take readings with and without acrylic at a fixed distance.
• When comparing different types of lamps consider readings to be relative rather than absolute.
• Lamps that peak near 365nm (newer designs) will read higher than lamps that peak near 350nm.

• Do not subject the meter to extremes in temperature, humidity, shock or dust.
• Use a dry, soft cloth to clean the instrument. Keep sensor free of oil, dirt, etc.

spectral response solarmeter 4.0

Solarmeter Specifications




Irrad. Range

0-199.9 mW/cm² UVA


320-400 nm UVA


0.1 mW/cm²

Conversion Rate

3.0 Readings/Sec


3.5 Digit LCD

Digit Size

0.4 (in) / 10.2 (mm) high

Operational Temp

32°F to 100°F / 0°C to 37.8°C

Operational Humidity

5% to 80% RH




4.2L x 2.4W x 0.9D (in) / 106.7L x 61W x 22.9D (mm)


4.5 (oz) / 128 (g) Including Battery

Power Source

9-Volt DC Battery


UV Glass



Agency Approval

CE Mark

Additional Information

Additional Information

Manufacturer No
Custom leasing months N/A


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