• Monitoring UV Lamp Intensity and Aging
• Testing Acrylic Shield Transmission
• Measuring Outdoor UVA
• Testing Eyewear UVA Blocking Capabilities
• Testing Window Film/Tint Transmission
Choose Standard Model 4.0 For Outdoor / High Intensity Applications
Choose Sensitive Model 4.2 For Indoor / Low Intensity Applications
| Model: | 4.0 |
| Irradiation Range: | 0-199.9 mW/cm² UVA |
| Response: | 320-400 nm UVA |
| Resolution: | 0.1 mW/cm² |
| Conversion rate: | 3.0 Readings/Sec |
| Display: | 3.5 digit LCD |
| Digit Size: | 0.4 (in) / 10.2 (mm) high |
| Operational Temperature: | 32°F to100°F / 0°C to 37.8°C |
| Operational Humidity: | 5% – 80% |
| Accuracy: | ±10% REF.NIST |
| Dimensions: | 4.2L x 2.4W x 0.9D (in) / 106.7L x 61W x 22.9(D) (mm) |
| Weight: | 4.5 oz / 128 g (including battery) |
| Power Source: | 9-Volt DC Battery |
| Lens: | UV Glas |
| Diffusor: | Teflon |
Sensor:
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.
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. For best results take note of the distance the reading was taken from the UV source in order to ensure repeatable results.
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 tinted eye wear when checking intense light sources. (Glasses that offer all-round protection are ideal.)
• Allow lights to warm-up prior to taking readings (at least 15 min).
• When checking aging of lamps, keep measuring distance and locations constant.
• Lamps should be replaced when output drops to about 70% of their original (new) readings.
• For curing lamps, hold the meter at the distance you intend your work piece to be cured.
• 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.
• 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.
Maintenance and care:
• Do not expose the meter to extreme temperatures, humidity, shocks or dust. If the meter is accidentally exposed to extreme humidity or damp conditions, unusually high readings may occur. Allowing the meter to dry naturally or placing it in a bag of silicate will restore normal function.
• Use a very soft cloth to clean the meter. Keep the sensor free of oil, dirt, etc.
