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Your present location:HomeproductsSolar & Light Detector - RK200-03 Pyranometer
  • Product Name: RK200-03 Pyranometer

The RK200-03 Pyranometer is produced based thermoelectric 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
  * Measuring without power
  * High sensitivity
  * 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%)

Stability

±2%/year

Cosine correction

≤±7%(Solar elevation angle=10°)

Temperature effect

±2%(-10℃-+40℃)

Operating temperature

-40℃-+80℃

Re-calibration interval 2 years

Weight(unpacked)

2.5kg

Pack

Aluminum alloy instrument box

Dimension

ø165*120mm

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

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.

PARAMETER SELECTION TABLE

Remark

Series

Type

Supply

Output

Cable Length

 

RK

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

03

 

 

 

 

 

 

 

A

 

 

5VDC

 

 

 

B

 

 

12-24VDC

 

 

 

X

 

 

Other

 

 

 

 

A

 

4-20mA

 

 

 

 

B

 

0-5V

 

 

 

 

C

 

0-20mV(No power supply required)

 

 

 

 

D

 

RS485

 

 

 

 

X

 

Other

 

 

 

 

 

2500

Units:mm(typ)

 

 

 

 

 

3000

Units:mm

 

 

 

 

 

...

Units:mm

Example: RK200-03BA2500 Supply: 12-24V, Output:4-20mA,Cable Length:2.5m.

    
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