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Summary of Contents for GHM DeltaOHM LPUVA02
- Page 1 English Operating manual UVA Radiometer LPUVA02 www.deltaohm.com Keep for future reference.
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUZIONE ....................3 WORKING PRINCIPLE ................... 4 INSTALLATION ..................... 5 ELECTRICAL CONNECTIONS .................. 8 LPUVA02 ..................8 CONNECTIONS LPUVA02AC ................... 9 CONNECTIONS LPUVA02AV ................... 9 CONNECTIONS MEASUREMENT ....................10 LPUVA02 ...................... 10 LPUVA02AC ....................10 LPUVA02AV ....................10 MAINTENANCE .................... -
Page 3: Introduzione
INTRODUCTION The LPUVA02 radiometer measures the global irradiance in the UVA spectral range on a flat surface (W/m ). Measured irradiance is the result of the sum of direct solar irradiance and of diffuse irradiance. The radiometer can also be used for monitoring indoor UVA emissions. Available in the following versions: •... -
Page 4: Working Principle
2 WORKING PRINCIPLE LPUVA02 radiometer is based on a solid state sensor, the spectral match with the de- sired curve is obtained using a special filter. The relative spectral response is reported on figure 2.1. Fig. 2.1 The radiometer is provided with a 50 mm external diameter dome in order to supply a suitable protection of the sensor to the weather agents. -
Page 5: Installation
3 INSTALLATION Before installing the radiometer, refill the cartridge containing silica-gel crystals. Silica gel absorbs humidity in the dome chamber and prevents, in particular climatic condi- tions, condensation on the internal walls of the domes and measurement alteration. Do not touch the silica gel crystals with your hands while refilling the cartridge. Carry out the following instructions in an environment as drier as possible: 1. - Page 6 • The radiometer must be mounted in an easy-to-reach location in order to clean the dome regularly and carry out maintenance. At the same time, make sure that no buildings, constructions, trees or obstructions exceed the horizontal plane where the radiometer lies. If this is not possible, select a site where obstructions in the path of the sun from sunrise to sunset do not exceed 5 degrees of elevation.
- Page 7 HD2003.79K HD2003.85K HD2003.83 HD2003.83.1 HD2003.77C Fig. 3.3: fixing accessories LPUVA02 V2.0...
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Page 8: Electrical Connections
4 ELECTRICAL CONNECTIONS LPUVA02… has a 4-pole connector and uses the CPM12AA4... optional cables. The metallic housing of the radiometer should preferably be grounded ( ) locally. In this case, do not connect the wire of the cable corresponding to the housing to prevent ground loops. Only if it is not possible to ground locally the metallic case of the radiometer, connect the wire of the cable corresponding to the housing to ground. -
Page 9: Lpuva02Ac Connections
4.2 LPUVA02AC CONNECTIONS The radiometer LPUVA02AC has 4…20 mA output and requires 10…30 Vdc external power supply. It is to be connected to a power supply and an instrument with 4…20 mA input as shown in fig. 4.2. The load resistance of the instrument reading the signal must be ≤... -
Page 10: Measurement
5 MEASUREMENT Below are the ways to calculate the irradiance. 5.1 LPUVA02 Each radiometer is distinguished by its own sensitivity (or calibration factor) S ex- pressed in µV/(Wm ) and shown in the label on the radiometer (and in the calibration report). -
Page 11: Maintenance
6 MAINTENANCE In order to grant measurements high accuracy, it is important to keep the glass dome clean. Consequently, the more the dome will be kept clean, the more measurements will be accurate. You can wash it using water and standard papers for lens. If necessary, use pure ETHYL alcohol. -
Page 12: Technical Specifications
TECHNICAL SPECIFICATIONS Measuring range 0…200 W/m Typical sensitivity 70...200 µV/Wm Viewing range 2π sr Impedance 3 kΩ 342 nm...384 nm (1/2) Spectral range 330 nm...393 nm (1/10) 320 nm...400 nm (1/100) Peak: 365 nm Response time <0.5 s (95%) Output LPUVA02 = µV/Wm LPUVA02AC = 4…20 mA LPUVA02AV = 0…1, 0…5, 0…10 V (depending on... -
Page 13: 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 14: Accessories Ordering Codes
ACCESSORIES ORDERING CODES The radiometer is supplied with shade disk, sylica-gel cartridge, 2 spare sachets, lev- elling device, M12 connector and Calibration Report. Accessories LPSP1 UV-resistant shade disk (spare part). LPS1 Only attachment bracket, suitable for mast with diameter 40…50 mm. - Page 16 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 | sales@deltaohm.com WARRANTY Delta OHM is required to respond to the "factory warranty" only in those cases provided by Legislative Decree 6 September 2005 - n.
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