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Related Manuals for senseca PYRAsense LPS03 Series
Summary of Contents for senseca PYRAsense LPS03 Series
- Page 1 OPERATING MANUAL PYRAsense LPS03 series Pyranometers V2.0...
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Page 2: Table Of Contents
PYRAsense LPS03 series - Pyranometers V2.0 Contents Introduction ..................... 3 Technical specifications ................4 Measuring principle .................. 6 Installation ....................7 4.1 Optional mounting supports ..............8 4.2 Electrical connections ................9 Configuration (LPS03Mxx)..............12 ASCII proprietary protocol (LPS03Mxx) ..........13 Modbus-RTU protocol (LPS03Mxx) ............ -
Page 3: Introduction
(W/m ), sum of direct solar irradiance and diffuse irradiance. The PYRAsense LPS03 series falls within the Spectrally Flat Class C pyranometers according to the ISO 9060:2018 standard and meets the requirements of the WMO “Guide to Instruments and Methods of Observation”. -
Page 4: Technical Specifications
PYRAsense LPS03 series - Pyranometers V2.0 2 Technical specifications Sensor Thermopile Typical sensitivity 5…15 µV/Wm Measuring range -200…4000 W/m The irradiance range for the analog output is 0…2000 by default, and is configurable in LPS03Mxx Resolution 0.1 W/m Viewing angle 2... - Page 5 PYRAsense LPS03 series - Pyranometers V2.0 Technical Specifications According to ISO 9060:2018 Classification Spectrally Flat Class C Response time (95%) < 18 s Zero offset a) response to a 200 W/m thermal <15W/m radiation b) response to a 5 K/h change in <4W/m...
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Page 6: Measuring Principle
PYRAsense LPS03 series - Pyranometers V2.0 3 Measuring principle PYRAsense series pyranometers are based on a thermopile sensor. The thermopile sen- sitive surface is coated with a black matt paint, which allows the pyranometer not to be selective at different wavelengths. -
Page 7: Installation
PYRAsense LPS03 series - Pyranometers V2.0 4 Installation • The pyranometer 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 pyranometer lies. -
Page 8: Optional Mounting Supports
PYRAsense LPS03 series - Pyranometers V2.0 4.1 Optional mounting supports Fig. 4.2: LPS3 bracket for mast Fig. 4.3: LPS5 adjustable bracket for mast Page 8 of 28... -
Page 9: Electrical Connections
PYRAsense LPS03 series - Pyranometers V2.0 4.2 Electrical connections Warning! The metallic housing of the pyranometer should preferably be grounded locally. The CPM12… cable shield is connected to the connector shell and then to the metallic housing of the pyranometer. Do not connect the yellow/green wire (cable shield) to ground, unless it is not possible to ground the pyranometer metallic housing locally via the support mast. - Page 10 PYRAsense LPS03 series - Pyranometers V2.0 LPS03Mxx connections: Other sensors with RS485 output PLC, data logger or RS485/USB or RS485/RS232 converter for PC Power supply Fig. 4.4: LPS03Mxx connection diagram RS485 output: The RS485 output is isolated. Before connecting the pyranometer to the RS485 network, set the address and the communication parameters, if different from the factory preset (see “Configuration”...
- Page 11 PYRAsense LPS03 series - Pyranometers V2.0 LPS030C0 connections: Power supply Fig. 4.5: LPS030C0 connection diagram Pyranometer power supply: 10…30 Vdc. Load resistance R ≤ 500 Ω. In the event of an anomaly in the measurement (detected measurement outside the measuring range), the output goes to 22 mA.
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Page 12: Configuration (Lps03Mxx)
PYRAsense LPS03 series - Pyranometers V2.0 5 Configuration (LPS03Mxx) It is possible to change the serial communication parameters (Modbus address, Baud Rate, parity/stop bit) and, for models with analog output, the type of analog output and the global irradiance measuring range corresponding to the analog output. -
Page 13: Ascii Proprietary Protocol (Lps03Mxx)
PYRAsense LPS03 series - Pyranometers V2.0 6 ASCII proprietary protocol (LPS03Mxx) To communicate with the pyranometer via the ASCII proprietary protocol: 1. Connect the pyranometer to the PC and start a standard serial communication program. 2. In the serial communication program, set the Baud Rate 57600, the parameters 8N2 and the COM port number to which the pyranometer is connected. - Page 14 PYRAsense LPS03 series - Pyranometers V2.0 RS485 Modbus-RTU communication parameters: Command Reply Description CMAn CMA;&| Sets the Modbus-RTU address (1…247) to n. Default=1 RMA;n| Reads the Modbus-RTU address. CMBn CMB;&| Sets the Baud Rate: ▪ 9600 if n=0 ▪ 19200 if n=1 (default) ▪...
- Page 15 PYRAsense LPS03 series - Pyranometers V2.0 Units of measurement: Changing the temperature units of measurement affects the Modbus protocol only. The temperature measurement provided by the ASCII proprietary protocol (commands S0/S1) is always in °C. Command Reply Description WUT;&| Sets the temperature unit of measurement: ▪...
- Page 16 PYRAsense LPS03 series - Pyranometers V2.0 Command Reply Description WAL5n…n WAL5;&| Sets to n…n hPa the internal pressure alarm threshold (800…1100 hPa, default=1100 hPa). AL5;n…n| Reads the internal pressure alarm threshold. All alarm thresholds are integer values with resolution 1 (1 day, 1 °C/°F/K, 1 %RH, 1 hPa).
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Page 17: Modbus-Rtu Protocol (Lps03Mxx)
PYRAsense LPS03 series - Pyranometers V2.0 7 Modbus-RTU protocol (LPS03Mxx) By default, the pyranometer has Modbus address 1 and communication parameters 19200, 8E1. The address and the communication parameters can be changed by using the appropriate serial commands of the proprietary protocol or, alternatively, directly with Modbus commands by changing the value of the Holding Registers described later. - Page 18 PYRAsense LPS03 series - Pyranometers V2.0 Address Description Format 76…79 Date of historical calibration 4 (yyyymmdd) String Sensitivity of historical calibration 5 in µV/Wm (x1000) 32-bit Integer 82…85 Date of historical calibration 5 (yyyymmdd) String OPERATING TIME Operating time in days from first power on...
- Page 19 PYRAsense LPS03 series - Pyranometers V2.0 Holding Registers: Address Description Format RS485 Modbus-RTU Baud Rate: 16-bit Integer 0=9600 1=19200 (default) 2=38400 3=57600 4=115200 RS485 Modbus-RTU parity and stop bits: 16-bit Integer 0=8N1 1=8N2 2=8E1 (default) 3=8E2 4=8O1 5=8O2 Modbus-RTU address (1…247, default=1).
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Page 20: Measurement With Analog Output
PYRAsense LPS03 series - Pyranometers V2.0 8 Measurement with analog output LPS030P0: Each pyranometer is distinguished by its own sensitivity (or calibration factor) S ex- pressed in µV/(Wm ), shown in the label on the pyranometer and in the calibration report. -
Page 21: Use Of The Diagnostic Sensors (Lps03Mxx)
PYRAsense LPS03 series - Pyranometers V2.0 9 Use of the diagnostic sensors (LPS03Mxx) The internal temperature, relative humidity, pressure and tilt (only LPS03MxT) diag- nostic sensors allow keeping the pyranometer operating conditions under control all the time and foresee any maintenance intervention in advance, thus ensuring always reliable measurements. -
Page 22: Maintenance
PYRAsense LPS03 series - Pyranometers V2.0 10 Maintenance In order to grant measurements high accuracy, it is important to keep the outer glass dome clean. Consequently, the more the dome will be kept clean, the more measure- ments will be accurate. -
Page 23: Safety Instructions
PYRAsense LPS03 series - Pyranometers V2.0 11 Safety instructions The pyranometer proper operation and operating safety can be ensured only in the climatic conditions specified in this manual and if all standard safety measures as well as the specific measures described in this manual are followed. -
Page 24: Accessories Ordering Codes
PYRAsense LPS03 series - Pyranometers V2.0 12 Accessories ordering codes The pyranometer is supplied with solar radiation protection screen, M12 female free connector (only if the optional cable is not ordered), calibration report and DATAsense PC application software downloadable from Delta OHM website. - Page 25 PYRAsense LPS03 series - Pyranometers V2.0 OTES Page 25 of 28...
- Page 26 PYRAsense LPS03 series - Pyranometers V2.0 OTES Page 26 of 28...
- Page 27 WARRANTY The manufacturer 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.
- Page 28 Senseca Italy S.r.l. Via Marconi, 5 35050 Selvazzano Dentro (PD) ITALY info@senseca.com...
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