Output setting

PAR

Energy

Illuminance

Units

µmol.m^-2.s^-1

W.m^-2

klux

Overall accuracy: Total

±10 µmol.m^-2.s^-1 ±12%

±5 W.m^-2 ±12%

±0.600 klux ±12%

Overall accuracy: Diffuse

±10 µmol.m^-2.s^-1 ±15%

±20 W.m^-2 ±15%

±0.600 klux ±15%

Resolution

0.6 µmol.m^-2.s^-1

0.3 W.m^-2

0.060 klux

Range

0-2500 µmol.m^-2.s^-1

0-1250 W.m^-2

0-200 klux

Analogue output sensitivity

1 mV = 1 µmol.m^-2.s^-1

1 mV = 0.5 W.m^-2

1 mV = 0.100 klux

Analogue output range

0-2500 mV

0-2500 mV

0-2000 mV

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