Kippzonen CGR 4 Pyrgeometers Manuel d'utilisateur

Instruction ManualPyrgeometerCGR 4

However, if the upward and downward radiation components are to be measured separately it is necessary to record the individual housing temperatures t

2.2.4. Installation for shaded measurement of downward long-wave radiationFor amplification of the pyrgeometer signal Kipp & Zonen offers the AMPBOX

2.4.1. Overcast skyTypical for a cloudy overcast sky is that radiation emitted by the earth is absorbed 100% by the clouds. Therefore, the overcast sk

2.4.3. Measurements during a sunny dayThe CGR 4 differs from all other pyrgeometers in that it allows accurate daytime measurements on sunny da

For the CGR 4 the effect of each parameter on the sensitivity can be shown separately. The non-linearity error, the sensitivity variation with irradian

2.6. MaintenanceOnce installed the pyrgeometer needs little maintenance. The dome/window must be cleaned and inspected regularly, ideally

3. Principle components of pyrgeometersThe detector of the Kipp & Zonen CGR series pyrgeometer is based on a passive thermal sensing element calle

The solar blind filter is opaque to radiation below 4.5 µm, known as the cut-on wavelength. Currently most pyrgeometers have their cut-on at a lower wa

3.4. HousingThe radiometer housing accommodates all fundamental pygeometer parts. The anodized Aluminium parts are light weight and give a h

4. Pyrgeometer physical properties4.1. Spectral rangeThe spectral properties of the pyrgeometer are mainly determined by the filter characteristics of

IMPORTANT USER INFORMATIONReading this entire manual is recommended for full understanding of the use of this product.Should you have any comments on

4.2. SensitivityThe radiometer thermopile sensitivity is mainly determined by the physical properties of the detector itself. The thermoelectric power

4.8. Window heating offsetCurrently the major source of error concerning common pyrgeometer measurements is caused by the so-called ‘window heating o

4.10. Operating temperatureThe operating temperature range of the radiometer is determined by the physical properties of theindividual parts. Within t

CGR 4 Manual4.16. EnvironmentalThe CGR series are intended for outdoor use under all expected weather conditions. The radiometers comply with IP 67 an

5. Calibration5.1. Calibration principleAn ideal radiometer gives voltage output that is proportional to the absolute irradiance level.

6. CGR modelsThe CGR series comprises 2 models, CGR 3 and CGR 4. The mechanical construction of the CGR 3 differs from the CGR 4 in that it has a flat s

6.2. CGR 4 performance specificationsPage 26 CGR 4 Manual

6.3. CGR 4 general specificationsCGR 4 Manual Page 27

7. Frequently asked questionsThe most frequently asked questions are listed below. For an update refer to the Kipp & Zonen website at www.kippzone

8. Trouble shootingThe following contains a procedure for checking the instrument in case it appears that it does not function as it s

Declaration of ConformityAccording to EC guideline 89/336/EEC 73/23/EECWe Kipp & Zonen B.V. Delftechpark 36, 2628 XH Delft P.O. Box 507, 2

Appendix I Radiometric terminologyTerm ExplanationAzimuth angle Angle in horizontal direction (0-360°)Angle of incidence Incident angle from zen

Appendix II 10kΩ thermistor specificationsYSI Thermistor 44031 - Resistance versus Temperature in °CCGR 4 ManualPage 31Thermistor (10 kΩ @ 25ºC) (α+[β•

Appendix III Pt-100 specificationsPt-100 - Resistance versus Temperature in ºC and ºFCGR 4 ManualPt-100 (100 Ω @ 0ºC) α: 3.9083 • 10-3β : -5.8019 • 10-

Appendix IV List of World and Regional Radiation CentresWorld Radiation CentreThe World Radiation Centre capable of pyrgeometer calibration is located

Appendix V Recalibration servicePyranometers, Albedometers, Pyrgeometers, UV-Radiometers & Sunshine Duration SensorsKipp & Zonen solar radiati

Our customer support remains at your disposal for any maintenance or repair, calibration, supplies and spares.Für Servicearbeiten und Kalib

Page 4...

1. IntroductionDear customer, thank you for purchasing a Kipp & Zonen instrument. Please read this manual and the separate instruction sheet for a

2. Installation and operation2.1. DeliveryCheck the contents of the shipment for completeness (see below) and note whether any damage has occurred du

3. MountingThe CGR pyrgeometer is provided with two holes for 5 mm bolts. Two each of stainless steel bolts, washers, nuts and n

6. Secure pyrgeometerSecure the pyrgeometer tightly with the two stainless steel bolts. Ensure that the pyrgeometer maintains the correct levelle

For measuring atmospheric radiation with some pyrgeometers, such as the CGR 3, it is desirable to shield the instrument from the direct short-wa