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Sensors for Environmental Monitoring - LSI LASTEM
User Manual for LSI LASTEM models including: DMA131A, DMA121A, DMA131.1, DMA131A Black Globe Temperature Sensor, DMA131A, Black Globe Temperature Sensor, Globe Temperature Sensor, Temperature Sensor, Sensor
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Globe temperature - LSI LASTEM
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DocumentDocumentEnvironmental monitoring solutions Black globe temperature sensor (Tg) User manual Black globe temperature sensor (Tg) User manual Revisions list Issue Origin 1 Date Description of changes 02/05/2024 08/07/2024 Updated schematic drawing of the DMA131A sensor About this manual The information contained in this manual may be changed without prior notification. No part of this manual may be reproduced, neither electronically nor mechanically, under any circumstance, without the prior written permission of LSI LASTEM. LSI LASTEM reserves the right to carry out changes to this product without timely updating of this document. Copyright 2024 LSI LASTEM. All rights reserved. LSI LASTEM SRL INSTUM_05382 Page 2 / 14 Black globe temperature sensor (Tg) User manual Summary 1 Introduction................................................................................................................................................4 2 Technical features ......................................................................................................................................4 3 Installation..................................................................................................................................................5 3.1 General safety rules ......................................................................................................................... 5 3.2 Mechanical installation .................................................................................................................... 5 3.2.1 Installation on pole ...................................................................................................................... 5 3.2.2 Installation on tripod ................................................................................................................... 6 3.3 Electrical connection ........................................................................................................................ 6 3.4 Use with LSI LASTEM data logger..................................................................................................... 6 4 Operational check.......................................................................................................................................7 4.1 Check black globe emissivity ............................................................................................................ 7 4.2 Check signal output (DMA121A and DMA131.1 sensors only) ........................................................ 7 5 Maintenance...............................................................................................................................................7 6 Handling......................................................................................................................................................8 7 Storage, packaging, preservation, delivery ................................................................................................8 8 Disposal ......................................................................................................................................................8 9 Accessories and spare parts .......................................................................................................................8 10 How to contact LSI LASTEM........................................................................................................................9 11 ANNEX 1....................................................................................................................................................10 11.1 EST131 sensor schematic drawing ................................................................................................. 10 11.2 DMA131A sensor schematic drawing ............................................................................................ 11 11.3 DMA131.1 sensor schematic drawing............................................................................................ 12 11.4 PRTEA4922 sensor schematic drawing to Alpha-Log data logger.................................................. 13 11.5 PRTEA4922.1 sensor schematic drawing ....................................................................................... 14 LSI LASTEM SRL INSTUM_05382 Page 3 / 14 Black globe temperature sensor (Tg) User manual 1 Introduction The standard globe thermometer consists of a black-painted copper sphere with a diameter of 150 mm and a thickness of 0.4 mm. It contains a thermometer with its bulb at the centre of the sphere. Designed as described in the ISO7726 standard Annex B, the main scope of the globe temperature measurement in meteorological applications is the possibility of estimate the Mean Radiant Temperature (Tmrt) which is one of the most important meteorological parameters governing human energy balance in the thermal comfort and heat stress applications. 2 Technical features PN Connector Cable Output Principle Accuracy EST131 DMA131A DMA131.1 Mini-Din None (free 4-wires) Male connector for DWA5nnA cables L=1 m + connector L=5 m L=5 m + connector Pt100 DIN-IEC 751 table (EN 60751) Pt100 DIN-A (Class A EN60751), RTD 4-wires 0.15°C Power supply Power consumption Data logger compatibility M-Log - E-Log, Alpha-Log PRTEA4922 PRTEA4922.1 M5-4 L=2 m + connector Digital I2C High-precision digital ±0.10°C @ -20÷50°C ±0.15°C @ 50÷70°C ±0.20°C @ 70÷80°C 3.3 V Max 500 µA Alpha-Log (PRTEA4922) Sphensor (PRTEA4922.1) Common technical specifications Black globe temperature General information Paint emissivity Measuring range Response time Accuracy Output Resolution Standard Protection Material Operative temperature Mounting 0.98 -20÷80°C 20 min 0.1°C (@0°C) Pt100 DIN-IEC 751 table (EN 60751) 0.01°C ISO7726:2002 IP66 Copper -40÷80°C On BVA305-BVA315 stands LSI LASTEM SRL INSTUM_05382 Page 4 / 14 Black globe temperature sensor (Tg) User manual 3 Installation 3.1 General safety rules Please read the following general safety rules in order to avoid injuries to people and prevent damages to the product or to possible other products connected with it. In order to avoid any damages, use this product exclusively according to the instructions herein contained. The installation and maintenance procedures must be carried-out only by authorized and skilled service personnel. Power the instrument in a suitable manner. Pay attention and observe the power supplies like indicated for the model in your possession. Carry-out all connections in a suitable manner. Pay strict attention to the connection diagrams supplied with the instrument. Do not use the product in case of suspected malfunctions. In case of suspected malfunction, do not power the instrument and contact authorized technical support immediately. Before you carry-out any operation on electrical connections, power supply system, sensors and communication apparatus: · Disconnect the power supply. · Discharge the accumulated electrostatic discharges touching an earthed conductor or apparatus. For safety regulations please refer to manual INSTUM_05290. 3.2 Mechanical installation Black globe temperature sensors can be installed on pole, by means of DYA032 stand and DYA049 collar, or on tripod BVA304, using three different types of stands: BVA305, BVA315 or BVA320. 3.2.1 Installation on pole 1. Fix the DYA032 support to the DYA049 collar and mount them on pole. 2. Fix the Tg sensor to the DYA032 holder using the M5 screw provided. LSI LASTEM SRL INSTUM_05382 Page 5 / 14 Black globe temperature sensor (Tg) User manual 3.2.2 Installation on tripod 1. Place tripod BVA304 at the place chosen to take measurements. 2. Screw the stand BVA305/BVA315/BVA320 to the tripod. 3. Fix the sensor to the stand using the N5 knurled knob supplied with the stand. Below are some installation examples: Tripod with stand BVA305 Tripod with stand BVA315 Tripod with stand BVA320 3.3 Electrical connection Wiring connections must be performed as a 4-wires Pt100 (DMA131A and DMA131.1 only), as indicated below: Yellow White Brown Green ANNEX 1 shows the connection diagrams of the various sensors. 3.4 Use with LSI LASTEM data logger If the sensor is used with an LSI LASTEM data logger, proceed with the configuration of the data logger using the 3DOM software: Open the data logger configuration. Add the sensor by selecting its code (eg DMA131A) from the 3DOM Sensor Library. Check the acquisition parameters (input, rate, etc.) Save the configuration and send it to the data logger. For more information about the configuration, refer to the manual of the data logger in use. LSI LASTEM SRL INSTUM_05382 Page 6 / 14 Black globe temperature sensor (Tg) User manual 4 Operational check 4.1 Check black globe emissivity To verify the emissivity of the black globe, a comparison can be made between measurements taken with the current sphere and those taken with a new MC2509 sphere (see spare part list), used solely for comparison purposes. The procedure involves comparing the final black globe temperature recorded before the sphere's removal with the temperature measured after 20 minutes using the new MC2509 sphere. It is crucial that the air temperature and irradiance levels remain consistent, for 20 minutes, with the last recorded values before the globe replacement. If the removed black globe has decreased in emissivity, the temperatures recorded with this sphere will be lower than those measured with the MC2509 sphere. 4.2 Check signal output (DMA121A and DMA131.1 sensors only) Multimeter is required. 1. Set the multimeter to measure signals in resistance and 200 scale. 2. Disconnect the wires from the data logger. 3. Connect A to one test lead of the multimeter and D to the other one. Read the resistance value on the multimeter and obtain the corresponding temperature value indicated in Tab. 1. For example, if the resistance value is 109 , the corresponding temperature is approximately 23 °C. 4. Repeat the previous step with wires B and C. The value read should be the one found between wires A and D. Tab. 1- Correspondence table °C -> . After check, reconnect the wires to the data logger. 5 Maintenance The only required maintenance is regular cleaning of the copper black sphere. This can be performed by spraying clean water onto the globe and then wiping it down with a cotton cloth to remove any dust and dirt stains. LSI LASTEM SRL INSTUM_05382 Page 7 / 14 Black globe temperature sensor (Tg) User manual Calibration of the sensor is recommended every two years. 6 Handling The product, or part of it, is fragile, avoid mechanical shocks, abrasions or scratches on the surface and globe. 7 Storage, packaging, preservation, delivery For storage and preservation, respect the temperature (-20÷80 °C) limits. Avoid direct sun exposure. For delivery and storage, use the packaging supplied with the product. Upon receipt of the material, visually check the package for signs of crushing or perforation; in the presence of these signs, check the integrity of the product inside. 8 Disposal This product is a device with high electronic content. In accordance with the standards of environmental protection and collection, LSI LASTEM recommends handling the product as waste of electrical and electronic equipment (RAEE). For this reason, at the end of its life, the instrument must be kept apart from other wastes. LSI LASTEM is liable for the compliance of the production, sales and disposal lines of this product, safeguarding the rights of the consumer. Unauthorized disposal of this product will be punished by the law. Recycle or dispose of the packaging material according to local regulations. 9 Accessories and spare parts Code BVA304 BVA305 BVA315 BVA320 DYA032 DYA049 DWA505A DWA510A DWA525A SVICA0103 SVACA0105 DEA420.1 MDMMA1010.1 MC2509 Description Tripod Arm for fixing sensors on BVA304 tripod Arm for fixing sensors on BVA304 tripod Arm for fixing sensors on BVA304 tripod or on wall Arm for fixing DMA131A, DMA131.1 and PRTEA4922 sensors on DYA049 collar Mast-mounting collar for Ø 45...65 mm pipe Cable L=5 m for DMA131.1 Cable L=10 m for DMA131.1 Cable L=25 m for DMA131.1 ISO9001 type calibration certificate ISO17025 type calibration certificate Signals converter: Output: 4÷20 mA. Power supply: 10÷30 V AC/DC More information on MW9008-ENG-04-Sensors-conditioningCatalogue Same feature as DEA420.1 except the output that is RS-485 Modbus-RTU Copper Black Sphere (spare part) LSI LASTEM SRL INSTUM_05382 Page 8 / 14 Black globe temperature sensor (Tg) User manual 10 How to contact LSI LASTEM In case of problem contact the technical support of LSI LASTEM sending an e-mail to support@lsi-lastem.com or compiling the technical support request module at www.lsi-lastem.com. For further information refer to addresses and numbers below: · Phone number · Address: · Web site: · Commercial service: · After-sales service: +39 02 95.414.1 (switchboard) Via ex S.P. 161 Dosso n. 9 - 20049 Settala, Milano www.lsi-lastem.com info@lsi-lastem.com support@lsi-lastem.com, Repairs: riparazioni@lsi-lastem.com LSI LASTEM SRL INSTUM_05382 Page 9 / 14 Black globe temperature sensor (Tg) User manual 11 ANNEX 1 11.1 EST131 sensor schematic drawing LSI LASTEM SRL INSTUM_05382 Page 10 / 14 Black globe temperature sensor (Tg) User manual 11.2 DMA131A sensor schematic drawing LSI LASTEM SRL INSTUM_05382 Page 11 / 14 Black globe temperature sensor (Tg) User manual 11.3 DMA131.1 sensor schematic drawing LSI LASTEM SRL INSTUM_05382 Page 12 / 14 Black globe temperature sensor (Tg) User manual 11.4 PRTEA4922 sensor schematic drawing to Alpha-Log data logger LSI LASTEM SRL INSTUM_05382 Page 13 / 14 Black globe temperature sensor (Tg) User manual 11.5 PRTEA4922.1 sensor schematic drawing LSI LASTEM SRL INSTUM_05382 Page 14 / 14