– Measuring the current UV index – Measuring solar intensity in the form of the UV index – Tracking the UV index over time – Measuring UV lamp intensity and aging
Modell: | 6.5 |
Output range: | 0-199.9 UV Index |
Measurement range: | 280-400 nm Diffey Erythemal Action Spectrum |
Resolution: | 0.1 UV Index |
Conversion speed: | 3.0 displays /Sek. |
Display: | 3.5-digit LCD |
Digit size: | 10,2 mm high |
Operating temperature: | 0°C – 37,8°C |
Operating humidity: | 5% – 80% |
Accuracy: | ±10% REF.NIST |
Dimensions: | L: 61 x B: 22 x H: 108 mm |
Weight: | 150 g |
Operating Voltage: | 9 V (Block Battery) |
Lens: | UV Glas |
Diffusor: | Teflon |
Sensor: The sensor consists of a silicon carbide (SiC) photodiode. It is located under UV glass with a hermetically sealed Eeff (erythema-effective) filter and a diffuser cap. Operation/Use of the device: To operate the Solarmeter®, position the sensor window on the top of the device, in front of your body (perpendicular to the flat surface), facing upward toward the sky. Press and hold the pressure switch on the front of the device. The displayed value represents the current UV index. The highest UVI values typically occur when the sky is deep blue, and sometimes when the sun is between scattered white “cotton-like” clouds. Be especially cautious under these conditions to avoid the risk of sunburn. Keep in mind that different cloud and haze conditions can reduce the UV index. During partial cloudiness, take frequent measurements and average the clear and cloudy readings to determine the actual UV index. Be cautious in hazy or slightly cloudy conditions, as although direct UV radiation is lower than under clear skies, diffuse UV radiation can be higher, as you may notice when holding the meter in different directions. The battery operating voltage is adjustable from 9 V down to 6.5 V. Below 6.5 V, the numbers on the LCD display begin to fade, indicating the need for a battery replacement. With typical usage, a standard 9V battery lasts about 2 years.
Skin type
|
Typical characteristics
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Tanning ability
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I
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Pale white skin, blue/hazel eyes, blonde/red hair | Burns always, never tans. |
II
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Fair skin, blue eyes | Burns easily, tans poorly. |
III
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Darker white skin | Tans after initial burning |
IV
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Light brown skin | Burns minimally, tans easily. |
V
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Brown skin | Rarely burns, tans quickly to a dark color |
VI
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Dark brown or black skin. | Never burns, always tans dark |
For untanned skin type II, the time until sunburn begins, a minimal erythemal dose (MED) at 210 J/m² per MED, can be calculated from the UV index value as follows: Divide the UVI value by 2.33 to obtain MED/hr. Then divide MED/hr by 60 minutes. Example for a UVI value of 8.5: 8.5 ÷ 2.33 = 3.65 MED/hr. Then 60 ÷ 3.65 = 16.4 minutes. Care and maintenance: • Do not expose the device to extreme temperatures, humidity, shocks, or dust. If the device is accidentally exposed to excessive humidity or wet conditions, unusually high readings may occur. If you allow the device to dry naturally or place it in a bag with silica gel, normal function will be restored. • Use a very soft cloth to clean the device. Keep the sensor free from oil, dirt, etc.