Related Manuals for GHM Delta OHM LPPYRA06
Summary of Contents for GHM Delta OHM LPPYRA06
- Page 1 English Operating manual Albedometer LPPYRA06 Companies / Brands of GHM www.deltaohm.com Keep for future reference.
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ....................3 WORKING PRINCIPLE ................... 4 INSTALLATION ..................... 5 ELECTRICAL CONNECTIONS .................. 6 MEASUREMENT ..................... 7 MAINTENANCE ...................... 8 TECHNICAL SPECIFICATIONS ................9 SAFETY INSTRUCTIONS ..................10 ORDERING CODES ....................11 LPPYRA06 V2.1... -
Page 3: Introduction
INTRODUCTION The LPPYRA06 albedometer measures the net global radiation, as well as the albedo of grounds (albedo is the ratio between diffuse radiation from a determined surface and the quantity of radiation that arrives on the surface). The LPPYRA06 is manufactured mounting two LPPYRA03 pyranometers in one housing only: one for measuring the incident radiation striking the ground [ ↓... -
Page 4: Working Principle
2 WORKING PRINCIPLE The LPPYRA06 albedometer is based on a pair of thermopile sensors, one of them measuring the incident radiation on the ground [ ↓ ] and the other one the reflected radiation [ ↑ ]. Each thermopile works as an independent pyranometer. The thermo- pile sensitive surface is coated with a black matt paint, which allows the pyranometer not to be selective at different wave lengths. -
Page 5: Installation
3 INSTALLATION • Mount the albedometer 1 – 2 m above the ground. Grass should be kept at the same height all the year long. In snowy regions, keep the instrument above the blanket of snow so that the distance from the albedometer to the snow be constant. •... -
Page 6: Electrical Connections
4 ELECTRICAL CONNECTIONS LPPYRA06 has a 8-pole connector and use the CPM12AA8... optional cables in UV resistant PTFE, with 8-pole connector on one side and open wires on the other side. The metallic housing of the albedometer should preferably be grounded ( ) locally. -
Page 7: Measurement
5 MEASUREMENT Each of the two pyranometers forming the albedometer is distinguished by its own sensitivity (or calibration factor) S expressed in µV/(Wm ) and shown in the label on the pyranometer (and in the calibration report). The sensitivity S is different for the two pyranometers. The irradiance E is obtained by measuring with a multimeter the difference of potential DDP at the ends of the sensor and applying the following formula:... -
Page 8: Maintenance
6 MAINTENANCE In order to grant measurements high accuracy, it is important to keep the outer glass domes clean. Consequently, the more the domes will be kept clean, the more meas- urements will be accurate. You can wash it using water and standard papers for lens. If necessary, use pure ETHYL alcohol. -
Page 9: Technical Specifications
TECHNICAL SPECIFICATIONS Sensor Thermopile Typical sensitivity 5÷15 µV/Wm- Impedance 33÷45 Ω Measuring range 0÷2000 W/m Viewing angle 2π sr Spectral range (50%) 300÷2800 nm Operating temperature/humidity -40÷80 °C / 0÷100% Output Analog in µV/Wm- Connection 8-pole M12 connector Dimensions Fig. 3.1 Weight 1.1 kg (complete albedometer) Accuracy of levelling device... -
Page 10: Safety Instructions
SAFETY INSTRUCTIONS General safety instructions The instrument has been manufactured and tested in accordance with the safety standard EN61010-1:2010 “Safety requirements for electrical equipment for meas- urement, control and laboratory use” and has left the factory in perfect safety tech- nical conditions. -
Page 11: Ordering Codes
ORDERING CODES LPPYRA06 Albedometer made up of two Spectrally Flat Class C (Second class) pyranometers according to ISO 9060:2018. Supplied with: top and bottom shade disks, levelling device, Ø16x500 mm fixing rod, M12 8-pole connector and Calibration Report. CPM12AA8… cable has to be ordered separately. LPSP2 UV-resistant shade disk (spare part). - Page 12 OTES 12 - LPPYRA06 V2.1...
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- Page 16 G U A R A N T E E TERMS OF GUARANTEE All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty period, shall be deemed non efficient according to its own judgement.
- Page 17 GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com The quality level of our instruments is the result of the constant development of the product. This may produce some differences between the information written in this manual and the instrument you have purchased.
- Page 18 GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | info@deltaohm.com V2.1 27/11/2020...
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