Pyranometer Delta-T SPN1

Pyranometer Delta-T SPN1

Order number

S65100

Availability

Usually in stock

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  • Measures global (total) and diffuse irradiance in W/m²
  • WMO sunshine threshold: 120 W/m² direct beam
  • No routine adjustment or polar alignment
  • No moving parts, shade rings or motorised tracking
  • Works at any latitude
  • Unique ground glass dome
  • Wideband thermopile sensors
  • Near ideal spectral and cosine response
  • Standard output sensitivity
  • Matches or exceeds the ISO Class B standard and the WMO Good Quality standard for a solar pyranometer in all respects apart from the spectral response - which is accurate to ±10% over 0.4 to 2.7 μm
Characteristic Description / Value
Spectral range 0 to > 2000 W/m²
Resolution 0.6 W/m² = 0.6mV
Analog output sensitivity 1mV = 1 W/m²
Analog output range 0 ... 2500 mV
Sunshine status threshold 120 W/m²
Sunshine status output No sun = open circuit
Sun = short circuit to ground
Accuracy: sunshine status ± 10% sun hours with respect to the threshold
Accuracy: cosine correction ± 2% of incoming radiation over 0 ... 90° zenith angle
Accuracy: azimuth angle ± 5% over 360° rotation
Quality Standard SPN1 matches or exceeds ISO First Class standard and WMO Good Quality standard for solar pyranometers in all respects apart from spectral response - which is accurate to ±10% over 0.4 to 2.7 μm
Overall Acuracy ± 5% daily integrals
Global (Total) ± 5% ± 10 W/m2 hourly averages
Diffuse Radiation ± 8% ± 10 W/m² individual readings
Accuracy figures give 95% confidence limits, i.e. 95% of individual readings will be within stated limits under normal climactic conditions.
Power requirements 2 mA (excluding heating power)
5 ... 15 VDC
Heating power 12 ... 15 VDC, up to 1.5 A
Heating control Continuously variable up to 20 W output for external temperatures below 0°C
Lowest snow & ice-free temperatures
(with heating in use)
-20°C at 0 m/s wind speed
-10°C at 2 m/s wind speed
Temp coefficient ± 0.02% per °C typical
(-20 ... +70°C)
Temperature range -40 ... +70°C
Recalibration / stability Factory calibration recommended every 2 years
Spectral response 400 ... 2700 nm
Spectral sensitivity variation 10% typical
Latitude capability -90 ... +90°C
Connection 8-pole plug (M12)
Cable 8-wire cable, length: 5 m
Environmental IP67 sealing
Mounting options 3 x M5 tapped holes in base; 108 mm pcd, 120° spacing
Size / weight 140 mm (diameter) x 100 mm (height), 940g
Manufacturer Delta-T Devices Ltd.

 

Function Plug
Pin No.
Sensor Cable Wire Colour Meteo-40
Analog Voltage / Digital
Supply Sensor
Global irradiance 1 white Ax a  
Diffuse irradiance 2 brown Ax+1 a  
Signal ground 3 green Ax b, Ax+1 b  
Sun status 4 yellow Dx  
Ground 5 grey   GND
Supply 6 pink   4 ... 15 VDC
Heating 7 blue   12 VDC
Heating 8 red   GND