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Summary of Contents for Delta OHM LPPYRA-Lite
- Page 1 English Operating manual Pyranometer LPPYRA-Lite www.deltaohm.com Keep for future reference.
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Page 2: Table Of Contents
ELECTRICAL CONNECTIONS .................. 8 LPPYRA-L .................. 8 ITE CONNECTIONS LPPYRA-L ................9 CONNECTIONS MEASUREMENT ....................10 LPPYRA-L ....................10 LPPYRA-L AC ....................10 MAINTENANCE ....................11 TECHNICAL SPECIFICATIONS ................12 SAFETY INSTRUCTIONS ..................13 ACCESSORIES ORDERING CODES ............... 14 LPPYRA-Lite V1.2... -
Page 3: Introduction
(Global Irradiance) is the sum of direct solar irradiance and dif- fuse irradiance. LPPYRA-Lite is a Spectrally Flat Class C (Second Class) pyranometer in accordance with ISO 9060:2018 and with the criteria of the WMO “Guide to Meteorological In- struments and Methods of Observation’”. -
Page 4: Working Principle
In order to grant the thermopile a proper thermal insulation from the wind and reduce the sensitivity to thermal irradiance, LPPYRA-Lite is equipped with a glass dome. The dome protects the thermopile from the dust, which might change spectral sensitivity if... -
Page 5: Installation
• It is preferably to thermally insulate the pyranometer from its mounting bracket ensuring, at the same time, a good electrical contact to ground. Ø 40 M5 (2x) • Fig. 3.1: dimensions and fixing holes LPPYRA-Lite V1.2... - Page 6 Ø5.5 (2x) Ø5.5 (2x) M5 (2x) LPS40/32 LPS40/32BL - Integrated levelling device Fig. 3.2: fixing adapters from 40 to 32 mm holes centre distance LPPYRA-Lite... LPS40/32... HD2003.77/40 Fig. 3.3: fixing on HD2003.77/40 clamping LPPYRA-Lite... LPS40/32... LPS3 Fig. 3.4: fixing on LPS3 bracket LPPYRA-Lite V1.2...
- Page 7 LPPYRA-Lite... LPS40/32... LPRING04 Fig. 3.3: fixing on LPRING04 adjustable holder LPPYRA-Lite V1.2...
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Page 8: Electrical Connections
4.1 LPPYRA-Lite CONNECTIONS The pyranometer LPPYRA-Lite is passive and does not require power supply. It is to be connected either to a millivoltmeter or to a data acquisition system. Typically, the pyranometer output signal does not exceed 20 mV. In order to better exploit the py- ranometer features, the readout instrument should have 1 µV resolution. -
Page 9: Lppyra-Liteac
≤ 500 Ω. Connector Function Color Positive (Iin) Negative (Iout) Blue Not connected White Cable shield (SH) Black Power supply Pyranometer M12 male connector CPM12AA4… cable Iout 4...20 mA Instrument with 4…20 mA input Fig. 4.2: LPPYRA-LiteAC connections LPPYRA-Lite V1.2... - Page 10 5 MEASUREMENT Below are the ways to calculate the global irradiance. 5.1 LPPYRA-Lite Each pyranometer is distinguished by its own sensitivity (or calibration factor) S ex- pressed in µV/(Wm ) and shown in the label on the pyranometer (and in the optional calibration report).
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Page 11: Maintenance
You can wash it using water and standard papers for lens. If necessary, use pure ETHYL alcohol. After using alcohol, clean again the dome with water only. To exploit all the pyranometer features, it is highly recommended that the calibration be checked annually. LPPYRA-Lite V1.2... -
Page 12: Technical Specifications
(impedance 33...45 Ω) Output LPPYRA-Lite: µV/Wm LPPYRA-LiteAC: 2-wire (current loop) 4…20 mA ≤ 500 Ω) Power supply LPPYRA-Lite: passive version, no power required LPPYRA-LiteAC: 10…28 Vdc LPPYRA-Lite: passive version, no power required Consumption LPPYRA-LiteAC: equal to output signal (4…20 mA) Connection 4-pole M12 connector Fig. -
Page 13: Safety Instructions
High-intensity electromagnetic fields, static electricity. User obligations The instrument operator shall follow the directives and regulations below that refer to the treatment of dangerous materials: • EEC directives on workplace safety. • National law regulations on workplace safety. • Accident prevention regulations. LPPYRA-Lite V1.2... -
Page 14: Accessories Ordering Codes
Length 2 m (CPM12AA4.2), 5 m (CPM12AA4.5) or 10 m (CPM12AA4.10). DELTA OHM metrology laboratories LAT N° 124 are ISO/IEC 17025 accredited by ACCREDIA for Temperature, Humidity, Pressure, Photometry / Radiometry, Acous- tics and Air Velocity. They can supply calibration certificates for the accredited quantities. - Page 16 | 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. 206. Each instrument is sold after rigorous inspections; if any manufacturing defect is found, it is necessary to contact the distributor where the instrument was purchased from.
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