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SUNSHINE DURATION METER
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MS-093
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A high quality sunshine duration meter without a world-wide competitor The WMO has defined sunshine duration as the time interval when direct solar radiation exceeds 120W·m-2. The EKO MS-093 Sunshine Duration Meter utilizes a pyroelectric sensor, one type of thermal sensor, that outputs a time differential coefficient processed for reliable measurement of only the direct solar radiation, without being affected by the diffuse radiation, integrated over the period when it exceeds a threshold value of 120W·m-2. |
Output |
:100 pulses/hour in fine weather |
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Directional response |
:±5% (within latitude ±23.5°) |
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Temperature response |
:±5% / °C(within -20 to +40°C) |
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Non-linearity |
:±2.5% |
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Integration error |
:less than 10 min/day |
