CS300-L

Pyranometer
CS300-L

CS300-L

Retired

Pyranometer

No longer available to order

This product is retained for service, documentation, and compatibility information.

Replaced by

Model:
CS300-L
Item Number:
22118
Warranty:
4 years

Overview

The CS300, manufactured by Apogee Instruments, measures total sun and sky solar radiation for solar, agricultural, meteorological, and hydrological applications. Its spectral range of 360 to 1120 nanometers encompasses most of the short-wave radiation that reaches the Earth's surface. This pyranometer connects directly to our data loggers. Its output can be measured by our data loggers.

Key Advantages

Accurate and Dependable
Ideal for long-term deployment in harsh conditions

Technical Description

The CS300 uses a silicon photovoltaic detector mounted in a cosine-corrected head to provide solar radiation measurements. Its dome-shaped head prevents water from accumulating on the sensor head. To eliminate internal condensation, the sensor head is potted solid and the cable is shielded with a rugged Santoprene casing. The CS300 is calibrated against a Kipp & Zonen CM21 thermopile pyranometer to accurately measure sun plus sky radiation.

Product Notes

requires 18356 and CM225

Benefits

  • Compatible with most Campbell Scientific data loggers
  • Designed for continuous, long-term, unattended operation in adverse conditions
  • Measurement waveband of 360 to 1120 nm
  • Dome-shaped head prevents water from accumulating on the sensor head

Specifications

Spectral Range
360 to 1120 nm

(wavelengths where response is 10% of maximum)

Measurement Range
0 to 2000 W/m2

(full sunlight ≈1000 W/m2)

Absolute Accuracy
±5% for daily total radiation
Sensitivity
5 mV/Wm-2
Calibration Factor
5 W/m2/mV
Cosine Correction Error
±5% at 75° zenith angle; ±2% at 45° zenith angle
Temperature Response
0.04 ± 0.04% per °C
Response Time
< 1 ms
Long-Term Stability
< 2% per year
Operating Temperature Range
-40° to +70°C
Relative Humidity Range
0 to 100%
Output Sensitivity
0.2 mV/W/m2
Diameter
2.4 cm

(0.9 in.)

Height
2.5 cm

(1.0 in.)

Weight
65 g

(2.3 oz) with 2-m (6.6-ft) lead wire

Compatibility

Sensor Mounts

Accurate measurements require the sensor to be leveled using a 18356 leveling fixture. This leveling fixture incorporates a bubble level and three adjusting screws. The 18356 mounts to a crossarm or a tripod or tower mast using the CM225 mounting stand. The CS300 should be mounted away from all obstructions and reflective surfaces that might adversely effect the measurement.

Data Logger Considerations

One differential analog input channel per probe is required.

Related Resources