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Pyranometer SR20


SR20 is a pyranometer of the highest category in the ISO 9060 classification system: secondary standard. This solar radiation sensor is used where the highest measurement accuracy is required. It measures the solar radiation received by a plane surface, in W/m2, from a 180o field of view angle. SR20 secondary standard pyranometer enables you to attain the highest measurement accuracy and excels in demanding applications. After a thorough programme of acceptance testing, SR20 was released February 2013.

IMPROVED MEASUREMENT ACCURACY

In order to improve overall measurement accuracy, Hukseflux effectively targeted two major sources of measurement uncertainty: calibration and “zero offset a”.
The initial calibration uncertainty is reduced to less than 1.2 %, an improvement of 15 % relative to competing models. The “zero offset a” specification of SR20 is 5 W/m2 unventilated.

Competing models state 12 W/m2 unventilated and 7 W/m2ventilated.


DATA UNITS
Measurand: Hemispherical solar radiation
ISO classification: Secondary standard pyranometer
Calibration uncertainty: < 1.2 % (k = 2)
Zero offset a: 5 W/m2 unventilated
Calibration traceability: to WRR
Spectral range: 285 to 3000 x 10-9 m
Sensitivity (nominal): 15 x 10-6 V/(W/m2)
Rated operating temperature range: -40 to +80 °C
Standard cable length: 5 m
Temperature response: <± 1 % (-10 to +40 °C)
+50 °C) with correction in dataprocessing
Can I connect a (thermopile) pyranometer directly to the EOL Zenith data logger?

Not directly. The output signal from this pyranometer is in milivolts and the input channels on the EOL Zenith ranges from 0-5 volts. You therefore need an amplifyer for this pyranometer. The amplifyer we supply is called AMPVAR. 


SR11 Pyranometer


SR11 is a high accuracy solar radiation sensor. SR11 pyranometer complies with the first class specifications of the ISO 9060 standard and the WMO Guide. It is the preferred instrument for outdoor PV system performance monitoring, according to the ASTM E2848 standard.

SR11 measures the solar radiation received by a plane surface from a 180o field of view angle. This quantity, expressed in W/m2 , is called “hemispherical” solar radiation. SR11 pyranometer can be employed outdoors under the sun, as well as indoors with lamp-based solar simulators. Its orientation depends on the application and may be horizontal, tilted (for plane of array radiation) or inverted (for reflected radiation).


DATA UNITS
Measurand: hemispherical solar radiation
ISO classification: first class pyranometer
Calibration uncertainty: < 1.8 % (k = 2)
Calibration traceability: WRR
Spectral range: 285 to 3000 x 10-9 m
Sensitivity (nominal): 15 x 10-6 V/(W/m2)
Rated operating temperature range: -40 to +80 °C
Can I connect a (thermopile) pyranometer directly to the EOL Zenith data logger?

Not directly. The output signal from this pyranometer is in milivolts and the input channels on the EOL Zenith ranges from 0-5 volts. You therefore need an amplifyer for this pyranometer. The amplifyer we supply is called AMPVAR. 


LP02 Pyranometer


LP02 is a solar radiation sensor / pyranometer that is applied in most common solar radiation observations. Complying with the second class specifications of the ISO 9060 standard and the WMO Guide, LP02 pyranometer is widely used in (agro-) meteorological applications and for PV system performance monitoring. LP02 is a very good alternative to silicon cell (photodiode-based) pyranometers, which do not comply to the ISO 9060 standard.

LP02 measures the solar radiation received by a plane surface from a 180o field of view angle. This quantity, expressed in W/m2 , is called “hemispherical” solar radiation. LP02 pyranometer can be employed outdoors under the sun, as well as indoors with lamp-based solar simulators. Its orientation depends on the application and may be horizontal, tilted (for plane of array radiation) or inverted (for reflected radiation).


DATA UNITS
Measurand: hemispherical solar radiation
ISO classification: second class pyranometer
Calibration uncertainty: < 1.8 % (k = 2)
Calibration traceability: to WRR
Non-linearity: < ± 1 % (100 to 1000 W/m2)
Spectral range: 285 to 3000 x 10-9 m
Sensitivity (nominal): 15 x 10-6 V/(W/m2)
Rated operating temperature range: -40 to +80 °C
Temperature response: < ± 3 % (-10 to +40 °C)

CMP10 Pyranometer


CMP10 is the secondary standard pyranometer with the best price-quality-performance ratio on the market. Based on the established CMP 11 technology, CMP10 extends this quality to applications where maintenance is difficult and/or forms a major part of the cost of ownership.

The CMP10 has an internal drying cartridge that will last for at least 10 years if the housing is not opened. This minimizes maintenance significantly.

The interval for dome cleaning can be extended, and the quality of measurements maximized, by fitting CMP10 with the recently launched CVF4 ventilation unit.

Kipp & Zonen provides every CMP10 with a 5-year warranty as standard. This warranty applies provided that the CMP10 is used only under atmospheric conditions, that the housing is not opened and that the Kipp & Zonen cable and connector is correctly fitted.


DATA UNITS
Spectral range: 285 to 2800 nm
Sensitivity: 7 to 14 µV/W/m²
Response time: < 5 s
Zero offset A: < 7 W/m²
Zero offset B: < 2 W/m²
Directional error (up to 80° with 1000 W/m² beam): < 10 W/m²
Temperature dependence of sensitivity (-10 ºC to +40 ºC): < 1 %
Operational temperature range: -40 °C to +80 °C
Maximum solar irradiance: 4000 W/m²
Field of view: 180 °

Pyranometer CMP3


The CMP 3 pyranometer is an instrument for measuring the solar irradiance. The thermopile sensor construction measures the solar energy that is received from the total solar spectrum and the whole hemisphere (180 degrees field of view). The output is expressed in Watts per meter square. The CMP 3 pyranometer is designed for continuous indoor and outdoor use.
 

The CMP 3 pyranometer (ISO 9060:1990 Second Class) is intended for shortwave global solar radiation measurements in the spectral range from 300 to 2800 nm. The thermopile detector measures irradiance up to 2000 W/m² with response time <18 seconds and typical sensitivity 10 µV/W/m² that varies less than 5 % from -10 ºC to +40 ºC.

Operating temperature range is -40 ºC to +80 ºC and the stability is better than 1 % per year. 

The CMP 3 pyranometer features a snap-on white sun shield, integrated leveling and a weatherproof connector which is supplied pre-wired with 10 m of signal cable for simple installation. An optional mounting rod and longer cable lengths are available. Two CMP 3s can easily be mounted back-to-back to make a low-cost albedometer.

The Pyranometer does not require any power, it supplies a low voltage of 0-20mV in relation to the amount of incoming radiation. When a higher voltage level or a 4-20mA signal is required, the AMPVAR is the perfect solution.


DATA UNITS
Spectral range: 300 to 2800 nm
Sensitivity: 5 to 20 µV/W/m²
Response time: 18 s
Zero offset A: < 15 W/m²
Zero offset B: < 5 W/m²
Directional error (up to 80° with 1000 W/m² beam): < 20 W/m²
Temperature dependence of sensitivity (-10 ºC to +40 ºC): < 5 %
Operational temperature range: -40 °C to +80 °C
Maximum solar irradiance: 2000 W/m²
Field of view: 180 °
Can I connect a (thermopile) pyranometer directly to the EOL Zenith data logger?

Not directly. The output signal from this pyranometer is in milivolts and the input channels on the EOL Zenith ranges from 0-5 volts. You therefore need an amplifyer for this pyranometer. The amplifyer we supply is called AMPVAR. 


Pyranometer CMP6


The CMP 6 pyranometer is intended for routine global solar radiation measurement research on a plane/level surface.
 

Fully compliant with ISO 9060:1990 specification for a First Class pyranometer, the CMP 6 features a sixty-four thermocouple junction (series connected) sensing element. The sensing element is coated with a highly stable carbon based non organic coating, which delivers excellent spectral absorption and long term stability characteristics.


CMP 6 has a similar detector to the CMP 3, but has improved performance due to the increased thermal mass and the double glass dome construction. It is ideal for cost-effective, good quality, measurements in hydrological networks and agriculture.

The integral bubble level is raised to the top of the housing and can be viewed without removing the redesigned snap-on sun shield, which also covers the connector. The connector with gold-plated contacts allows for easy exchange and re-calibration.

The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets.

The Pyranometer does not require any power, it supplies a low voltage of 0-20mV in relation to the amount of incoming radiation. When a higher voltage level or a 4-20mA signal is required, the AMPVAR is the perfect solution.


DATA UNITS
Spectral range: 285 to 2800 nm
Sensitivity: 5 to 20 µV/W/m²
Response time: 18 s
Zero offset A: < 12 W/m²
Zero offset B: < 4 W/m²
Directional error (up to 80° with 1000 W/m² beam): < 20 W/m²
Temperature dependence of sensitivity (-10 ºC to +40 ºC): < 4 %
Operational temperature range: -40 °C to +80 °C
Maximum solar irradiance: 2000 W/m²
Field of view: 180 °
Can I connect a (thermopile) pyranometer directly to the EOL Zenith data logger?

Not directly. The output signal from this pyranometer is in milivolts and the input channels on the EOL Zenith ranges from 0-5 volts. You therefore need an amplifyer for this pyranometer. The amplifyer we supply is called AMPVAR. 


DR01 Pyrheliometer


DR01 is a high-accuracy direct (normal incidence) solar radiation sensor. The scientific name of this instrument is pyrheliometer. DR01 complies with the first class specifications of the ISO 9060 standard and the WMO Guide. The pyrheliometer has a heated window, which helps reduce the need for cleaning. DR01 is used in tracker-mounted operation.

DR01 is a solar radiation sensor that is applied in high accuracy observations. It measures the solar radiation received by a plane surface from a 5° full field of view angle. This quantity, expressed in W/m2 , is called “direct” solar radiation or direct normal irradiance (DNI). Pyrheliometers are generally employed outdoors under the sun. It is necessary to keep the instrument pointed at the sun by using a two-axis tracker. Typical DR01 applications include solar energy resource assessment, system performance monitoring (in particular for concentrated solar energy) and scientific solar climate observations.


DATA UNITS
Measurand: direct solar radiation
ISO classification: first class pyrheliometer
DR01 response time (95 %): 12 s (nominal)
Full field of view angle: 5 °
Slope angle: 1 °
Calibration uncertainty: < 1.2 % (k = 2)
Calibration traceability: to WRR
Measurement range: 0 to 4000 W/m2
Spectral range (50 % transmission points): 200 to 4000 x 10-9 m
Sensitivity (nominal): 10 x 10-6 V/(W/m2)
Rated operating temperature range: -40 to 80 °C
Temperature response: < ± 1 % (-10 to +40 °C)

STR22G Sun Tracker


The compact sun tracker are perfectly suited to support all kinds of Global, Diffuse and Direct Radiation measurement sensors. Besides the standard EKO sensor mounts various mountings are available. EKO Instruments improved STR-22G Sun Tracker with fully automated set up procedure through a GPS receiver providing increased reliability and enhanced functionality. 

From sun rise to sun set the compact Sun-Tracker guarantees accurate sun tracking and pointing of the attached solar sensors. The 2-axis tracker automatically adjusts to the sun’s position by the sun sensor closed-loop control system, even if the tracker is not oriented or leveled properly.

The Sun Tracker comes with a small tripot that offers a stable surface for the measurement equipment. When AC power is not available on site a 24 VDC low power version can be used to run the EKO Sun-Tracker from a solar powered battery system.


DATA UNITS
Motor: Stepping motor
Driving technology: Harmonic Drive
Pointing accuracy: < 0.01° (Solar Elevation: 0 to 87°)
Angle resolution: 0.009°
Rotation angle: Azimuth-angle(0° to +/-180°)
Torque: 24 (12+12) Nm
Payload: 15kg balanced
Tracking mode: Sun-sensor mode and Calculation mode are automatically switched.
Tracking accuracy of Sun-sensor mode: +/- 0.01°
Sun-sensor field of view: +/- 15°

SPN1 Sunshine Pyranometer


The SPN1 Sunshine Pyranometer is a meteorological class solar radiation measurement instrument with a built-in heater, and is designed for long-term outdoor exposure. It is an affordable and effective alternative to shade-ring pyranometers, pyrheliometers and traditional sunshine recorders. The SPN1 Sunshine Pyranometer is exceptionally easy to use; it needs no routine adjustment or polar alignment and works at any latitude. 

An internal heater keeps the pyranometer dome clear of dew, ice and snow down to -20°C (in still air conditions), ensuring reliable readings in difficult climatic conditions.


DATA UNITS
Resolution: 0.6 W.m-2 = 0.6mV
Range: 0 to >2000 W.m-2
Analogue output sensitivity: 1mV = 1 W.m-2
Analogue output range: 0-2500mV
Sunshine status threshold: 120 W.m-2 in the direct beam
Accuracy (sunshine status): ± 10% sun hours with respect to the threshold
Accuracy (cosine correction): ± 2% of incoming radiation over 0-90° Zenith angle
Accuracy (azimuth angle): ± 5% over 360° rotation
Temp coefficient: ± 0.02% per °C typical (-20 to +70°C)