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LPPYRHE16 

-   17   -

 

V2.3

 

8

 

MAINTENANCE 

In order to grant measurements high accuracy, it is important to keep the quartz win-

dow  clean. Consequently, the more the window  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. After using alcohol, clean again the window with water only. 
Because of the high temperature changes between day and night, some condensation 

might  appear on the pyrheliometer  window. In this case the performed reading is 

highly over-estimated. To minimize the condensation, the pyrheliometer is provided 

with a cartridge containing dessicant material (silica-gel). The efficiency of the silica-

gel crystals decreases over time while absorbing humidity. Silica-gel crystals are effi-

cient when their color is yellow, while they turn white/translucent as soon as they 

loose their efficiency. Read instructions at chapter 3 about how to replace the silica-

gel crystals. Silica-gel typical lifetime goes from 2 to 6 months depending on the envi-

ronment where the pyrheliometer works. 
To exploit all the pyrheliometer features, it is highly recommended that the calibration 

be checked annually. 

9

 

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. 
The instrument proper operation and operating safety can be ensured only if all 

standard safety measures as well as the specific measures described in this manual 

are followed. 
The instrument proper operation and operating safety can be ensured only in the cli-

matic conditions specified in this manual.  
Do not use the instruments in places where there are: 

 

Corrosive or flammable gases. 

 

Direct vibrations or shocks to the instrument. 

 

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. 

 

Содержание LPPYRHE16

Страница 1: ...Operating manual Pyranometer LPPYRHE16 www deltaohm com English Keep for future reference...

Страница 2: ...4 4 LPPYRHE16S CONNECTIONS 10 4 5 LPPYRHE16ACS CONNECTIONS 11 5 MEASUREMENT IN THE MODELS WITH ANALOG OUTPUT 12 5 1 LPPYRHE16 12 5 2 LPPYRHE16AC S 12 5 3 LPPYRHE16AV 12 6 RS485 MODBUS RTU OUTPUT 13 6...

Страница 3: ...vation seventh edition 2008 The pyrheliometer has a field of view of 5 in accordance with ISO 9060 2018 stand ard and WMO guide The pyrheliometer is available in the following versions LPPYRHE16 PASSI...

Страница 4: ...ld junction Thanks to the Seebeck effect the difference in temperature between hot and cold junction is converted into a Dif ference of Potential In order to reduce the variations of sensitivity depen...

Страница 5: ...order to reduce light scattering contribution Fig 2 3 scheme of principle LPPYRHE16 version with mV output Front opening Internal opening Sensor Field of view 2 arctan R d Slope angle arctan R r d The...

Страница 6: ...g a coin 2 Remove the cartridge perforated cap 3 Open the sachet containing silica gel supplied with the pyrheliometer 4 Fill the cartridge with the silica gel crystals 5 Close the cartridge with its...

Страница 7: ...es or obstructions intercept the sun s path during the day all year long To point the pyrheliometer the two holes in the front and back flange are used To properly align the instrument just make sure...

Страница 8: ...red versions internally there are surge protection devices connected to the housing Grounding the housing allows the correct protection functionality in particular against lightning 4 1 LPPYRHE16 CONN...

Страница 9: ...on the ordered output and requires external power supply 10 30 Vdc for 0 1 V and 0 5 V outputs 15 30 Vdc for 0 10 V output It is to be connected to a power supply and an instrument with voltage input...

Страница 10: ...Power supply positive Vdc Red 3 Not connected 4 RS485 A Brown 5 RS485 B White 6 Housing Cable shield SH Black 7 Not connected 8 Not connected Fig 4 4 LPPYRHE16S connections Before connecting the pyrhe...

Страница 11: ...The RS485 output is not isolated Connector Function Color 1 Power supply negative GND Blue 2 Power supply positive Vdc Red 3 Digital and analog ground SGND Black 4 RS485 A Brown 5 RS485 B White 6 Hou...

Страница 12: ...itivity of the pyrheliometer expressed in V Wm 2 5 2 LPPYRHE16AC S The 4 20 mA output signal corresponds to the 0 2000 W m2 irradiance range The irradiance Ee is obtained by measuring with a multimete...

Страница 13: ...to install the related USB drivers in the PC NOTES ON THE INSTALLATION OF UNSIGNED USB DRIVER before installing unsigned USB driver into operating systems starting from Windows 7 it is necessary to re...

Страница 14: ...data bits no parity 2 stop bits n 2 8 E 1 8 data bits even parity 1 stop bit n 3 8 E 2 8 data bits even parity 2 stop bits n 4 8 O 1 8 data bits odd parity 1 stop bit n 5 8 O 2 8 data bits odd parity...

Страница 15: ...eger 4 3 Status register bit0 1 solar radiation measurement error bit2 1 configuration data error bit3 1 program memory error 16 bit Integer 5 4 Average values of the last 4 measurements 16 bit Intege...

Страница 16: ...0 10 V LPPYRHE16AV Digital RS485 Modbus RTU LPPYRHE16 AC S Power supply 10 30 Vdc 4 20 mA 0 1 V and 0 5 V outputs 15 30 Vdc 0 10 V output 5 30 Vdc RS485 Modbus RTU output Connection 4 or 8 pole M12 c...

Страница 17: ...s depending on the envi ronment where the pyrheliometer works To exploit all the pyrheliometer features it is highly recommended that the calibration be checked annually 9 SAFETY INSTRUCTIONS General...

Страница 18: ...m CPM12 8DA 2 5 m CPM12 8DA 5 or 10 m CPM12 8DA 10 For LPPYRHE16ACS CP24 PC connecting cable for the RS485 MODBUS parameters configu ration of the LPPYRHE16 AC S pyrheliometers With built in RS485 US...

Страница 19: ......

Страница 20: ...warranty included in the manual of the product For any dispute the competent court is the Court of Padua The Italian law and the Convention on Contracts for the International Sales of Goods apply TECH...

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