User manual DALETOWN PM-11 PHYTOMONITOR - QUICK REFERENCE GUIDE

PM-11 Phytomonitor · Quick Reference Guide PM-11 Phytomonitor Automatic Data logging system with the wide range of optional sensors for plant research and crop growing Hardware Quick Reference Guide 2007 ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Overview ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Main electronic parts and connections ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Mounting on the tripod ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Mounting on a pole by using cable ties ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Open-field installation ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Modem connections ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com PM-11 Phytomonitor · Quick Reference Guide Wiring of RS485 connection This is only basic guideline for wiring an RS485 network with several PM-11 Phytomonitors. More detailed information may be found in the appropriate Application note at http://www.maxim-ic.com/appnotes.cfm?appnote_number=763&CMP=WP-1 . A model network with three PM-11 units is shown in the picture above. The wires shall connect all like terminal contacts. The branch cables shall be as short as possible. The end of the main RS485 cable shall be terminated at one of the PM-11 units. Never leave the RS485 cable end unterminated. All devices shall be de-energized wile making connections. Recommended types of cables for RS485 network: Twisted pair for `+' and `-` lines. A separate wire for `GND' (ground) Shielded twisted pair. Use a shield for connecting `GND'. A cable with two twisted pairs. Use one pair for connecting `GND'. ©Daletown Company Ltd. ­ Bio Instruments S.R.L. ­ info@daletown-phyto.com