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Solar Radiation and Light Sensors – Rika

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Solar Radiation Sensor

We offer two types of solar radiation sensor: silicon-cell and thermopile pyranometers, both types are now ISO 9060:2018 Class C rated (previously known as a second class). Silicon-cell solar radiation sensor model is excellent for applications that do not require high accuracy and with a limited budget. It is with faster response time and a more competitive price. But the solar pyranometer has higher errors under cloudy conditions. Our new cost-effective thermopile pyranometers feature a blackbody thermopile detector that provides a much broader and more uniform spectral response for better performance in all atmospheric conditions. Illuminance sensor for solar radiation measurement is widely used for shortwave radiation measurement in agricultural, ecological, and hydrological weather, and optimizing photovoltaic systems.

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Solar Radiation and Light Sensors – Rika

RK200-04 Solar Radiation Sensor

Used for measuring solar radiation within 300-3000nm wavelength. If the sensing face is downwards, it can test the reflected radiation and solar radiation on the incident to the inclined plane.
RK200-04 Solar Radiation Sensor
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RK200-04 Solar Radiation Sensor

RK200-04 Solar Radiation Sensor is designed on basis of optical principle. It is mainly used for measuring solar radiation within 300-3000nm wavelength. If the sensing face is downwards, it can test the reflected radiation and solar radiation on the incident to the inclined plane. If shad is added, it can test the scattered radiation. It is widely used to monitor the solar radiation in meteorology, solar energy, agriculture, construction materials aging and atmospheric pollution and etc..

Features:

  • Designed on silicon-cell principle
  • No moving parts, no maintenance, can work in any altitude
  • High sensitivity
  • Low power consumption
  • Light weight, long service life
  • Used as sunshine duration sensor

Applications:

  • Meteorology
  • Agriculture
  • Construction materials aging monitoring
  • Air pollution monitoring
  • Solar energy

Specifications:

Item

SPECIFICATIONS
Spectral range

300～1100nm
Supply

5V,12-24VDC
Range

0-1500W/m2
Resolution 1W/m2
Output

0-5V,4-20mA,RS485
Response time

≤5s
Cosine correction

≤±10%(Solar elevation angle=10°)
Non-linear

≤±3%
Temperature effect

±0.08%/℃
Stability

≤±2%/year
Operating Temperature

-40℃-+80℃
Ingress Protection

IP65
Weight(unpacked)

420g
Shell material

Aluminum alloy
Storage Condition

10℃-60℃@20%-90%RH
The product can be used as a sunshine time sensor
Sunshine hours is the sum of time periods that the sun direct irradiance intensity to reach or exceed 120W/m2 time , hour as a unit, a decimal. Sunshine-hours is also known as actual irradiance time.
 

Dimension:
RK200-04-Solar-Radiation-Sensor-Solar-Irradiance-Sensor-dimension

Unit:mm
In order to ensure measurement accuracy, please keep the horizontal installation.
 

Mounting & Maintenance:

  • The sensor should be installed in the open air without any shield above the sensing surface .
  • The sensor connector should be faced to the north, fix it after the horizontal position is well adjusted.
  • Please check the filter cover regularly & make sure it is clean.
  • Please do not remove or loose the filter cover, otherwise the accuracy will be affected.
  • Please make sure the desiccant to be dry (If the color of desiccant is changed from blue to red, it should be replaced)
  • Protection cover is not necessary in general rainfall, but if prolonged heavy rains or hail, the protective cover is recommended to be installed.
  • The sensitivity is recommended to be re-calibrated after two years use.

Product Details:

 
 
Part No Product Detail Price (ex-GST)
RK200-04 Solar Radiation Sensor
Housing Material: Aluminium alloy
Measure spectral range: 300-1100nm
Range: 0-1500W/m2
Sensitivity: 7-14UV/w/m-2
Output signal: 4-20mA/0-5V/RS485/SDI-12
Power supply: 5V/12-24VDC		 $371.94

Data sheet on RK200-04 Solar Radiation Sensor (pdf, opens in a new tab)

RK200-02 PAR Sensor

Used for measuring solar radiation within 400~700nm wavelength. It is easy installation and can work continuously in all weathers.
RK200-02 PAR Sensor
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RK200-02 PAR Sensor

The RK200-02 PAR Sensor is mainly used for measuring solar radiation within 400~700nm wavelength. It is easy installation and can work continuously in all weathers. When there is sunlight, voltage output proportional to incident light intensity will be generated by the silicon-photo detector in the sensor. Its sensitivity is proportional to the cosine of incident light direct angle. Each product is with one sensitivity coefficient respectively. It can directly output radiation value in unit of μ*mol/m2*s.

Features:

  • Metal construction
  • Harsh environment workable
  • High sensitivity
  • No power supply measurement
  • Compact size for easy use

Applications:

  • Agrometeorological research
  • Crop growth monitoring
  • Ecological research
  • Environment surveillance
  • Greenhouse control

Specifications:

Item

Specifications

Spectral range

400～700nm

Supply

5VCD,12V-24VCD

Accuracy

±5% rdg

Range

0-2500μ*mol/m2*s or 0-2000W/m2

Output

0-2000mV

 4-20mA(2-wires) RS485
Sensitivity 0-2500μ*mol*m2*s  800μv/μ*mol*m2*s  6.4μA/μ*mol*m 2 *s /
0-2000W/m2

1000μV/W/m 2

 8uA/W/m 2 /

Response time

＜1s（99%）

Temperature effect

＜0.05%/℃

Cosine correction

＜10%（until 80°）

Non-linearity

<±2%

Operating temperature

-40-+80℃

Shell material

Aluminum alloy

Storage Condition

10℃-60℃@20%-90%RH

Output Characteristics:

0-2000mV

  • Range:0-2000W  PAR values(W)= Voltage output value(μV)/1000
  • Range:0-2500μ*mol/m2*s  PAR values(μ*mol/m2*s)= Voltage output value(μV)/160

4-20 mA

  • Range:0-2000W  PAR values(W)=(I(μA)-4000μA)/0.8 (Where I is output current value,unit:μA )
  • Range:0-2500μ*mol/m2*s  PAR values(μ*mol/m2*s)= (I(μA)-4000μA)/6.4(Where I is output current value,unit:μA )

RS485

  • MODBUS-RTU
 

Dimension:

RK200-02-PAR-Sensor-PD-ESIS-AU-dimension

Unit:mm

In order to ensure measurement accuracy, please keep the horizontal installation.

 

Product Details:
RK200-02 PAR Sensor parts details

 
Part No Product Detail Price (ex-GST)
RK200-02 PAR Sensor
Spectral range:400～700nm
Range: 0-2500μ*mol/m2*s
Accuracy: ±5% rdg
Output signal: 0-2V/0-5V/4-20mA/RS485
Power supply: 12-24VDC		 $479.24

Data sheet on RK200-02 PAR Sensor (pdf, opens in a new tab)

RK200-03 Pyranometer Radiation Monitor

Based on thermopile principle; sensing elements are made by winding – plated thermopiles with multi contacts. Its surface is coated by black coating with high absorption rate.
RK200-03 Pyranometer Radiation Monitor
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RK200-03 Pyranometer Radiation Monitor

The RK200-03 Pyranometer is produced based thermopile principle; sensing elements are made by winding – plated thermopiles with multi contacts. Its surface is coated by black coating with high absorption rate. Hot contacts on the sensors surface, while the cold junction is located within the body, temperature difference between the hot and cold junction generates electromotive force, the thermoelectric effect is proportional to the solar radiation. In order to reduce the ambient temperature effect ,temperature compensation circuit designed here to reduce the effects to products properties.

Features:

  • Conform to the WMO standard
  • Suitable for harsh environment
  • With horizontal bubble
  • High sensitivity
  • Double transmission glass
  • Visual desiccant window
  • Easy installation

Applications:

  • Solar energy & photovoltaic power generation
  • Agriculture and forestry monitoring
  • Crop growth monitoring
  • Tourism eco
  • Weather stations

Specifications:

Item

Specification
Spectral range

300-3200nm
Supply

5V,12-24VDC
Range

0-2000W/m2
Output

0-20mV,0-5V,4-20mA,RS485‚
Sensitivity

7-14μV*W-1*m2
Internal resistance

350Ω
Non-linearity

<±2%
Measuring angle

2π solid angle
Response time

≤35s(99%)
Zero drift (temperature drift:5k/h) ±5W/m2
Stability

±2%/year
Cosine correction

≤±7%(Solar elevation angle=10°)
Temperature effect

±2%(-10℃-+40℃)
Operating temperature

-40℃-+80℃
Recalibration interval 2 years
Desiccant Silica gel desiccant
Weight(unpacked)

2.5kg
Pack

Aluminum alloy instrument box
Dimension

ø165*120mm
Installation bracket(optional) Horizontal bracket or adjustable angle bracket
Ingress Protection

IP65
Storage Condition

10℃-60℃@20%-90%RH

If you choose 0-20mv signal output, without power supply.
If you choose RS485/0-5V/4-20mA output signal, the external signal conversion module(98*66*49mm) will be additional.

Output Characteristics:

0-20mV

  • Solar radiation values(W/m2)= Voltage output value(μV)/sensitivity coefficient(μV*W-1*m2),
  • Each product is with one sensitivity coefficient respectively (It is mentioned on the product’s label)

0-5V

  • Solar radiation values(W/m2)=(V/5)*2000(Where V is output voltage value, unit: V )

4-20mA

  • Solar radiation values(W/m2)=(I-4)/16*2000(Where I is output current value, unit: mA )

RS485

MODBUS-RTU

 

Dimension:

RK200-03 Pyranometer dimension
RK200-03 Pyranometer dimension
Unit:mm
In order to ensure measurement accuracy, please keep the horizontal installation.
 

Mounting & Maintenance:

  • The sensor should be installed in the open air without any shield above the sensing surface .
  • The sensor connector should be faced to the north, fix it after the horizontal position is well adjusted.
  • Please check the filter cover regularly & make sure it is clean.
  • Please do not remove or loose the filter cover,otherwise the accuracy will be affected.
  • Please make sure the desiccant to be dry (If the color of desiccant is changed from blue to red, it should be replaced)
  • Protection cover is not necessary in general rainfall, but if prolonged heavy rains or hail, the protective cover is recommended to be installed.
  • The sensitivity is recommended to be re-calibrated after two years use.
 

Product Details:

 
 
Part No Product Detail Price (ex-GST)
RK200-03 Pyranometer
Housing Material: Aluminium alloy
Measure spectral range: 300-3200nm
Range: 0-2000W/m2
Sensitivity: 7-14UV/w/m-2
Output signal: 4-20mA/0-5V/RS485
Power supply: 5V/12-24VDC		 $740.76

Data sheet on RK200-03 Pyranometer Radiation Monitor (pdf, opens in a new tab)

RK200-07 Ultraviolet(UV) Radiation Sensor

Used to measure the atmosphere of the sun’s ultraviolet radiation (UVA & UVB), supporting the product related information acquisition instrument use can provide public concern: the UV index, UV erythema measurement
RK200-07 Ultraviolet(UV) Radiation Sensor
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RK200-07 Ultraviolet(UV) Radiation Sensor

RK200-07 UV Radiation Sensor is a precision instrument used to measure the atmosphere of the sun’s ultraviolet radiation (UVA & UVB), supporting the product related information acquisition instrument use can provide public concern: the UV index, UV erythema measurement, on the health effects of the UV and UV special biology and chemistry, highly meteorology, industry, construction, medical attention, are widely used in the exposure caused erythema dose, integrated environment ecological effect, the study of climate change and ultraviolet radiation monitoring and forecast.

Features:

  • Light weight
  • No moving parts, no maintenance, can work in any altitude
  • High sensitivity
  • Low power consumption
  • Long service life

Applications:

  • Tourism weather
  • Breeding industry
  • Construction materials aging monitoring
  • Medical research
  • Environmental monitoring

Specifications:

 

Item

SPECIFICATIONS
Spectral range

280～400nm
Supply

5V,12-24VDC
Range

0-200W/m2, 0-200uW/cm 2(only for 0-2V output) , 0-15UV index
Output

0-2V,0-5V,4-20mA(2-wire),RS485
Accuracy ±5% rdg
Response time

≤1s
Cosine correction

≤±4%(Solar elevation angle=30°)
Non-linear

≤±3%
Temperature effect

±0.08%/℃
Stability

≤±2%/year
Operating Temperature

-40℃-+85℃
Ingress Protection

IP65
Weight(unpacked)

150g
Shell material

Aluminum alloy
Storage Condition

10℃-60℃@20%-90%RH

If you choose to 0-5V,4-20mA or RS485 output signal, the need to add the external signal conversion module(98*66*49mm).

 

Dimension:

RK200-07-UV-Radiation-Sensor-dimension
Unit:mm
 

Product Details:

 
 
Part No Product Detail Price (ex-GST)
RK200-07 UV Radiation Sensor Range: 0-200W/m2, 0-200uW/cm2, 0-15UV index
Accuracy: ±5% rdg
Output signal: 4-20mA/0-2V/RS485
Power supply: 12-24VDC		 $550.76

Data sheet on RK200-07 Ultraviolet(UV) Radiation Sensor (pdf, opens in a new tab)

RK210-01 Illuminance Sensor

Used to measure the atmosphere of the sun’s ultraviolet radiation (UVA & UVB), supporting the product related information acquisition instrument use can provide public concern: the UV index, UV erythema measurement
RK210-01 Illuminance Sensor
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RK200-07 Ultraviolet(UV) Radiation Sensor

RK210-01 Illuminance Sensor is very sensitivity and can detect weak light, has a wide measuring range, high accuracy, good waterproof performance, easy to use, easy to install. It’s suitable for most applications, especially in agricultural greenhouses, urban lighting and other places.

Features:

  • High sensitivity
  • Applicable to various harsh environments
  • High precision, wide measuring range
  • Compact size
  • Easy installation

Applications:

  • Agro-meteorological
  • Intelligent buildings
  • Greenhouse control
  • Weather stations
  • Crop monitoring

Specifications:

 

Item

Specification
Range

0-2000lux,0-20klux,0-200klux optional
Spectral range

380-780nm
Supply

5VDC, 12-24VDC
Output

4-20mA,0-5V,0-10V

 RS485
Accuracy <±5%FS <±4%FS
Response time 1s
Temperature effect

±0.2%/℃
Repeatability

<1%FS
Display

LCD optional(ABS housing)
Operating temperature

-40℃-+75℃
Weight(unpacked)

170g
Shell material

ABS,metal shell can be customized
 
 

Dimension and mounting:

RK210-01-Illuminance-Sensor-Dimension
Unit:mm
 

Product Details:

 
 
Part No Product Detail Price (ex-GST)
RK210-01 Illuminance Sensor
Shell material: ABS
Range: 0-2000lux, 0-20klux, 0-200klux
Spectral range: 380-780nm
Accuracy: <±5%FS
Output signal: 4-20mA/0-5V/RS485
Power supply: 12-24VDC		 $170.76

Data sheet on RK210-01 Illuminance Sensor (pdf, opens in a new tab)

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