| Accuracy : Sunshine hours |
±10% compared to the WMO definition |
| Accuracy : Cosine correction |
±10% of incoming radiation over 0-90° Zenith angle |
| Accuracy : Azimuth angle |
± 5% over 360° rotation |
| Temperature coefficient |
± 0.15 % /°C (typical) |
| Temperature range |
-20 to + 50°C with Alkaline batteries
-20 to + 70°C with Lithium batteries |
| Stability |
Recalibration recommended every 2 years. |
| Response time |
< 250 ms |
| Spectral response |
400-700 nm |
| Latitude capability |
-90° to + 90° |
| Environmental |
IP65 ( shower and dust proof) |
| Sunshine status : contact closure |
No sun = open circuit
Sun = short circuit to ground |
| Internal battery |
2 x 1.5 V AA alkaline batteries |
| Power requirement |
2 mA (awake ), <30 µA (asleep) |
| Heater power |
12 V – 15 VDC, up to 1.5 A |
| Battery lifetime |
1 year (typical) |
| Input voltage range – powered from internal battery |
1.4 to 3.6 VDC |
| Input voltage range – external power |
5 to 15 VDC |
| Fuse trip point, on sunshine status signal, (when in switch-closure mode) |
0.5 A, 30 V (self-resetting) |
| Max applied voltage to sunshine status output, in contact closure mode |
0 to 24 V |
| RS232 connector |
5-pin M12 |
| Signal output & power-in connector |
8 pin M12 |
| Mounting options: |
Camera tripod socket (¼ inch Whitworth). Holes for 4 x M4 bolts at corners of box. |
| Size & Weight |
120 mm x 122 mm x 95 mm, 635 g |