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Summary of Contents for LSI LASTEM DPA252
- Page 1 Environmental monitoring solutions Secondary Standard Pyranometer DPA252 User’s manual...
- Page 2 LSI LASTEM. LSI LASTEM reserves the right to carry out changes to this product without timely updating of this document. Copyright 2018-2019 LSI LASTEM. All rights reserved.
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Page 3: Table Of Contents
Product installation ............................ 7 General safety rules ........................... 7 Mechanical installation ........................8 Electrical connection ......................... 8 Operation check ............................9 Maintenance .............................10 Calibration ..............................11 Disposal ..............................11 How to contact LSI LASTEM ........................11 LSI LASTEM SRL INSTUM_04453 Pag. 3 / 12... -
Page 4: Introduction
First & Second class Pyranometers – User manual 1 Introduction The LSI LASTEM pyranometer is an instrument to measure the solar irradiance (direct and diffuse) which reaches the terrestrial surface. With this instrument it is possible to measure not only the global radiation (see WMO n°8 7 ed.), but also... -
Page 5: Technical Features
Stability (% change/year) <± 0.5 % Standard built-in temperature sensor Standard built-in heater YES (12 Vdc, 1,5W) Data provided with each sensor • Calibration certificate • Temperature dependence data • Directional response data LSI LASTEM SRL INSTUM_04453 Pag. 5 / 12... -
Page 6: Calibration Factor
PMOD: Phisikalisch Meteorologisches Observatorium Davos). The Calibration Report contains the Calibration Factor with its expanded uncertainty. This Factor must be entered in the data logger. For LSI LASTEM’s data logger the Calibration factor is set using 3DOM software, in Measure Properties:... -
Page 7: Product Installation
The installation and maintenance procedures must be carried-out only by authorized and skilled service personnel. Carry-out all connections in a suitable manner. Pay strict attention to the connection diagrams supplied with the instrument. LSI LASTEM SRL INSTUM_04453 Pag. 7 / 12... -
Page 8: Mechanical Installation
6.Reassemble the protective screen on the pyranometer body. 4.3 Electrical connection Connections must be performed following the drawing of the pyranometer: Wire color Nome Significato White + output Thermopile output + Green - output Thermopile output - Black Ground LSI LASTEM SRL INSTUM_04453 Pag. 8 / 12... -
Page 9: Operation Check
1 x 10-6 V range. Look at the output. Check if the output is as expected. Check the data acquisition by short circuiting the data acquisition input with a 100 Ω resistor. Look at the output. Check if the output is close to 0 W/m2 LSI LASTEM SRL INSTUM_04453 Pag. 9 / 12... -
Page 10: Maintenance
/ necessary replace the parts that are most exposed to weathering; cable, connector, desiccant holder, sun screen 6 years Internal inspection if applicable: open instrument and inspect / replace O-rings; dry internal cavity around the circuit board LSI LASTEM SRL INSTUM_04453 Pag. 10 / 12... -
Page 11: Calibration
Recalibration of field pyranometers is typically done by comparison in the field to a reference pyranometer. The applicable standard is ISO 9847 “International Standard- Solar Energy- calibration of field pyranometers by comparison to a reference pyranometer”. At LSI LASTEM an indoor calibration according to the same standard is used. - Page 12 First & Second class Pyranometers – User manual LSI LASTEM SRL INSTUM_04453 Pag. 12 / 12...
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