SRM100

Solar Radiation Sensor

A first-level pyranometer that measures irradiance on the earth. The high-precision thermopile core is coated with an inorganic carbon film for high stability and absorption, and a two-layer quartz cover protects the sensing element from environmental influence.

First-level pyranometer285 ~ 3000 nmWRR traceable

The SRM100 radiation sensor is a first-level pyranometer that measures irradiance on the earth. Placed horizontally downward it measures reflected radiation, and a scattering shading ring can be added to measure scattered radiation. The sensing core is composed of a high-precision thermopile; the sensing parameter is coated with an inorganic carbon film for high stability and high absorption rate. A two-layer quartz glass cover made of precision optical cold-processing protects the sensing element from environmental influence.

SRM100 integrates the level reference, reusable dryer and white light shield in a single body. It can be widely used in meteorology, solar energy utilization, agriculture, building-material ageing and air-pollution departments to measure solar radiation energy, and pairs naturally with the OWS weather-station bus over RS485.

Specification

Technical parameters

Technical Parameters
Output
mV
Calibration uncertainty
< 1.2% (k=2)
Zero offset
< 5 W/m² (not ventilated)
Calibration traceability
WRR
Spectral range
285 ~ 3000 nm
Sensitivity (nominal)
15 µV / (W/m²)
Rated operating temperature range
−40°C ~ 80°C
Standard cable length
5 m
Temperature response
< ±1% (−10°C ~ −40°C); < ±0.4% (−30°C ~ +50°C); corrected during data processing
Temperature sensor
PT100 or 10 kΩ thermistor
Communication interface
RS485
Operating environment
−10°C ~ 40°C, 0%~95%RH (no condensation)
Power supply
7~24 VDC / 12~24 VDC (heating on)
Power consumption
< 0.5 W / 1.5 W (heating on)
Protection level
IP65
Dimensions
100 mm × 80 mm × 83 mm
Weight
1900 g
More from this family

Pairs well with

See all general models →