1. Introduction
The SMP10 pyranometer, manufactured by Kipp & Zonen and cabled by Campbell Scientific,
measures solar radiation with a high-quality blackened thermopile protected by two glass domes.
Its flat spectral sensitivity makes it ideal for applications in natural sunlight, under plant canopies,
and in greenhouses or buildings. Communications to on-site RTUs, SCADA systems, or other data
acquisition systems are simplified with the industry-standard Modbus RTU communications
protocol. Typical uses include environmental monitoring, solar resource assessment, and solar
power performance applications.
Typically, this pyranometer is oriented perpendicular to the Earth’s surface to measure global
horizontal irradiance (GH). Diffuse sky radiation can also be measured with the use of a shade
mechanism.
2. Specifications
class A (secondary standard)
Modbus over 2-wire RS-485 or 0 to 1 V
ISO
9060:2018
classification:
Output:
Analog
ue
output
range:
0 to 1600 W/m²
Modbus output range:
–400 to 4000 W/m²
Zero offset A:
< 7 W/m²
Zero offset B:
< 2 W/m²
Spectral range:
285 to 2800 nm
Operating temperature range: –40 to 80 °C
Temperature response:
< 1% (–20 to 50 °C); < 2% (–40 to 70 °C)
Operating voltage range:
5 to 30 VDC
Power consumption:
<55 mW at 12 VDC
Weight without cable:
0.6 kg (1.3 lb)
SMP10 Pyranometer
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