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Detector unit |
UD-T25T2 |
UD-T36T2 |
UD-T40T2 |
UD-T3040T2 |
Detector element |
Silicon photodiode |
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Diameter of detector window |
φ5mm |
φ3mm |
φ3mm |
φ3mm |
Measurement wavelength range |
230 ~ 280nm |
300 ~ 390nm |
350 ~ 490nm |
290 ~ 430nm |
Peak sensitivity |
約255nm |
約355nm |
約410nm |
– |
Irradiance display |
Range1: |
Range1: |
Range1: |
Range1: |
Irradiance |
Range1: |
Range1: |
Range1: |
Range1: |
Integral |
Range1: |
Range1: |
Range1: |
Range1: |
Analog output |
Range1: 0.015 |
Range1: 0.03 |
Range1: 0.015 |
Range1: 0.03 |
Data |
■ Sampling time (The following table shows the Integral irradiance mode.) 50Hz -> 10ms, 60Hz -> 8.33ms |
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Angular incident light characteristics |
30º -> Within ±5%, 60º -> Within ±25% |
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Calibration accuracy(*1) |
±2% |
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Linearity(*2) |
±3% |
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Analog output |
0 – 2.0Vmax. (Common to each range.) |
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Interface |
USB2.0 (USB A connector – USB Micro B connector) |
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Power supply |
LR03 (Alkaline dry battery) 3 pcs. (not included in the price) / USB bus power |
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Operating conditions |
Temperature 10 – 60ºC / Humidity 85% R.H. or less (No dews) |
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Dimensions (W×D×H) (*3) |
75×201×16mm |
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Weight (*3)(*4) |
Approx.320g |