Spectrum 3670I Manual 

to use with your WatchDog Weather Station or Data Logger, or your Field Scout Light Sensor Reader. The sensor measures solar radiation between 300 and 1100 nanometers. This range is important for evapo- transpiration calculations. This manual will aid you in placement and mounting of the sensor. Read it thoroughly to insure proper and effective use. The Silicon Pyranometer Sensor includes a 6 foot data cable; which is plugged into an available external port on WatchDog weather station or data logger. Once the sensor is in a representative “micro-climate”, insert the data cable plug into the WatchDog external channel to log solar radiation data. Use With a WatchDog Station or Logger You may wish to remove the mounting bracket when us- ing the silicon pyranometer sensor with a Field Scout Light Sensor Reader. If so, loosen the thumbscrews, and save the parts for reassembly. Just plug the sensor into the reader, and SET the reader to “SOLR RAD”. For more details, see the Field Scout Sensor Reader Manual. Use With a Field Scout Light Sensor Reader

mounted, use the adjustment screws to level the sensor so that the bubble is centered on the level indicator. Mount the sensor on a 1” to 1¼” mast or pipe using the u- bolt provided. Position the sensor in an appropriate area that monitors the plant conditions. Make sure the sensor is not being shadowed or blocked by another external sensor. Contact your cooperative extension agricultural agent for further suggestions on field placement. Inspect the sensors frequently to make certain the sensors are still level and clear of obstructions. Use SpecWare software to program the WatchDog to log solar radiation on the desired port. Refer to the SpecWare Instruction Manual for detailed launch and/or readout instructions. WatchDog Data Logger inside mini-radiation shield Place sensor in a position that it will mimic the sunlight the plant is getting, while being within reach of external WatchDog data port.

12360 S Industrial Dr. E Plainfield IL 60585 (800) 248-8873 or (815) 436-4440 Fax (815) 436-4460 E-Mail: [email protected] www.specmeters.com This product is warranted to be free from defects in material or workmanship for 1 year from the date of purchase. During the warranty period Spectrum will, at its option, either repair or replace products that prove to be defective. This warranty is void if the Spectrum products have been damaged by customer error or negligence or if there has been an unauthorized modification. Returning Products to Spectrum Before returning a failed unit, you must obtain a Returned Goods Authorization (RGA) number from Spectrum. You must ship the product(s), properly packaged against further damage, back to Spectrum (at your expense) with the RGA number marked clearly on the outside of the package. Spectrum is not responsible for any package that is returned without a valid RGA number or for the loss of the package by any shipping company. Warranty Specifications Range 0-1250 W/m2, ±5% Excitation Voltage 3.0-5.0VDC Sensor Output 0-2.5V Linear: W/m2 = V * 500