Pyranometer User Guide-Apogee Instruments скачать в хорошем качестве

Pyranometer User Guide-Apogee Instruments

This video covers proper installation and maintenance of Apogee Instruments silicon-cell pyranometers. VIDEO CONTENT 00:25 MOUNTING When choosing a location to mount your pyranometer make sure it’s a spot that has an unobstructed view of the sun throughout the entire day and even year for long-term deployment. Apogee pyranometers can be mounted either perfectly lever for global horizontal irradiance measurements or on the same plane as a solar panel for plane of array measurements, either way we have mounting and leveling equipment to help you out. 01:54 WIRING For our demonstration of wiring a pyranometer to a datalogger or controller, we will be using a CR1000 datalogger from Campbell Scientific. 02:15 SP-110 & SP-230: These are self-powered sensors and can be monitored using a differential or single ended channel measurement. For differential channel, the sensors red wire goes to the high and the black wire to the low. The sensors clear wire should be wired to the dataloggers analog ground. For single-ended, the sensors red wire to the single-ended channel and the black and clear to the analog ground. The SP-230’s heater requires a 12 V power supply, and the white wire of the 12 V DC signal and the green wire to the negative or ground. 02:59 SP-212 & SP-215: These provide an amplified voltage output and therefore require an input voltage in order to operate correctly, check the manual for proper range. Connect the sensors white wire to the positive voltage signal, clear to the negative or ground of the power source, green to the single-ended channel or voltage input controller. 03:24 SP-214: This sensor provides a 4 to 20 mA output and requires an input voltage range of 5 to 36 V DC. For this sensor, connect the red wire to positive voltage signal, black to negative or ground of the power source, clear to an analog ground, whit to the controllers 4 to 20 mA input, and green to the input ground. 03:50 MAINTENACE Maintaining your sensor involves checking to make sure the optical path remains clear and checking to make sure calibration is still accurate. 04:01 Clean Sensor-Keeping the sensor optical path clear is easy due to the dome shape of the pyranometer. Rain will typically clean the sensor or you can rinse it with water. If the sensor does become encrusted with mineral deposits, we recommend cleaning it with vinegar and a soft cloth. 04:26 Check Calibration-Apogee pyranometers have a long-term drift rate of less than 3 % per year. In general, we recommend that you send your pyranometer to us for recalibration every two to three years. Additionally, you can check the calibration of your pyranometer using our Clear Sky Calculator at http://www.clearskycalculator.com/. 05:27 TIPS AND TROUBLESHOOT 05:36 Remove Green Cap- One of the simplest problems we see is people failing to remove the protective green cap from the pyranometer. The cap is designed to protect the sensor lens when transporting and storing the senor but needs to be removed when taking measurements. 05:50 Check Functionality- A quick and easy check of sensor functionality can be determined using a voltmeter with millivolt resolution. Simply connect the positive lead of the voltmeter to the red wire from the sensor and the negative to the black. Blocking all radiation from sensor should force the senor signal to read 0, directing the diffuser toward a light should provide a signal. #solarradiation #solarirradiance #pyranometers #ApogeeInstruments More information on solar radiation at http://www.apogeeinstruments.com/sili... ------ More videos on silicon-cell pyranometers at    • Silicon Cell Pyranometers by Apogee Instru...   ------ Follow us to see all the cool places our sensors are used, get notices on free tutorials and classes, and product announcements! -Facebook   / apogeeinstruments   -Twitter   / apogeeinst   -LinkedIn   / 1084851   -Instagram   / apogee_instruments