CS301
CS301
OrderablePyranometer
Overview
The CS301, 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. Because the CS301 connects directly to Campbell Scientific data loggers, the output of this pyranometer can be collected on site, as well as remotely.
This pyranometer features an IP67-rated, marine-grade 316L connector that allows the user to easily swap sensors for recalibration or to replace damaged cables.
Key Advantages
Ideal for long-term deployment in harsh conditions
Technical Description
The CS301 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 CS301 is calibrated against a Kipp & Zonen CM21 thermopile pyranometer to accurately measure sun plus sky radiation.
Product Notes
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
- Sensor
- Silicon photovoltaic detector mounted in a cosine-corrected head
- Measurement Description
- Measures sun plus sky radiation
- ISO Classification
- Class C (second class)
- Light Spectrum Waveband
- 360 to 1120 nm
(wavelengths where response is 10% of maximum)
- Measurement Range
- 0 to 2000 W/m2
(full sunlight ≈1000 W/m2)
- Output Range
- 0 to 400 mV
(full scale output)
- Absolute Accuracy
- ±5% for daily total radiation
- Spectral Range
- 360 to 1120 nm
- 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%
- 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
Accessories
(6)CM226
Solar Sensor Mounting Stand with Level and Base
OrderableCABLE6PIN-LITE
26 AWG Three-Conductor Cable with M8 Six-Pin V-Coded Pin (Male) Connector
Orderable18356
Apogee Pyranometer Leveling Base
OrderableCM225
Solar Sensor Mounting Stand
OrderableCM255
Solar Adjustable-Angle Mounting Stand
Orderable39112
DIN Rail Terminal Kit with 1 Terminal and 3 Wires
Orderable
Common Accessories
(4)CM226
Solar Sensor Mounting Stand with Level and Base
One of two mounting options is needed per sensor. The CM226 is one of the options. The CM226 is a mount for Apogee solar sensors that integrates both the leveling and mounting hardware into one unit.
Orderable18356
Apogee Pyranometer Leveling Base
One base is needed per sensor. The 18356 provides several functions:It provides a secure, stable mount for the CS301. A bolt secures the pyranometer to the leveling base.The bubble level and three leveling screws allow the pyranometer to be adjusted to level for accurate solar radiation measurements. The base can be attached to a CM225 Solar Sensor mount using three mounting screws which allows the pyranometer to be deployed on a variety of instrument mounts.
Orderable39112
DIN Rail Terminal Kit with 1 Terminal and 3 Wires
The 39112 provides the needed DIN rail terminals, separator, and wires to connect any product to a data logger or other peripheral that requires three wires for connection. This kit provides the following wires: black, white, and clear. The color-coding of these wires matches the wire coloring of the product for ease in connection, maintenance, and troubleshooting.
OrderableCABLE6PIN-LITE
26 AWG Three-Conductor Cable with M8 Six-Pin V-Coded Pin (Male) Connector
The CABLE6PIN-LITE is a cable assembly with an M8 six-pin V-coded connector on one end and flying leads on the other end. Three of the pins and the shield are presented as flying leads with ferrules. The six-pin connector is weatherproof and suitable for harsh environmental conditions.
Orderable
Services
(2)30008
CS300/1, CS305, CS320, SP230/SS, or CS310 Calibration with Data
The 30008 provides a calibration of the CS301 pyranometer with a certificate. An RMA (Return Material Authorization) from Campbell Scientific is required.
Orderable33476
Solar Sensor ISO 17025 Accredited Calibration to ASTM E824 with Data
The 33476 calibration service is performed using a reference group of pyranometers traceable to World Radiometric Reference (WRR). This calibration is ISO 17025 accredited to ASTM E824 standard.
Orderable
Ships With
(1)- Mounting Screw from original mfg
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 CS301 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.
