{"id":1598,"date":"2019-08-11T12:16:28","date_gmt":"2019-08-11T03:16:28","guid":{"rendered":"https:\/\/www.rhsystem.kr\/wordpress\/?p=1598"},"modified":"2019-08-27T03:15:16","modified_gmt":"2019-08-26T18:15:16","slug":"photosynthesis-monitor-model-ptm-50","status":"publish","type":"post","link":"https:\/\/www.rhsystem.kr\/wordpress\/?p=1598","title":{"rendered":"Photosynthesis Monitor Model PTM-50"},"content":{"rendered":"\n

A new all-in-one instrument for monitoring growing plants and environment.<\/strong> <\/h3>\n\n\n\n

OVERVIEW<\/strong><\/h2>\n\n\n\n

The new PTM-50 Monitor is a truly\nstate-of-the-art automatic instrument for long-term recording physiological characteristics\nof intact plants. <\/p>\n\n\n\n

The Monitor has four inputs for\noriginal motorized self-clamping leaf chambers. The chambers are normally open\nand encompass a leaf only for about 20 seconds to measure both CO2<\/sub>\nand H2<\/sub>O exchange rates with minimal disturbance of natural leaf\nconditions. The standard round LC-10R Leaf Chamber with 10 cm2<\/sup>\naperture is suitable for wide variety of broad-leaf plants. The optional rectangular\nLC-10S Leaf Chamber is also available on demand.<\/p>\n\n\n\n

The Monitor has two independent\nopen-path channels for separate simultaneous analysis of ambient and after-leaf\nair. This provide perfect tolerance to fluctuations of ambient concentration of\ncarbon dioxide and water vapor that is typical for greenhouses and growth\nchambers. <\/p>\n\n\n\n

The Monitor provides fully\nautomatic continuous operation with sampling rate selectable from 5 to 120\nminutes. <\/p>\n\n\n\n

The Monitor has both the 2.4 GHz RF modem and optional the 3G modem onboard. The RF modem is used for direct communication with a user\u2019s PC and with optional wireless Phyto-Sensors\u2122. <\/p>\n\n\n\n

The overall configuration of the PTM-50 Monitor is shown below: <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

BASIC PERFORMANCE SPECIFICATION<\/h1>\n\n\n\n
\n Mode of operation\n <\/td>\n Continuous automatic\n <\/td><\/tr>
\n Number of leaf chambers\n <\/td>\n 2 (min.) to 4 (max.)\n <\/td><\/tr>
\n Type of leaf chamber\n <\/td>\n Motorized, normally open\n <\/td><\/tr>
\n Leaf chamber sampling mode\n <\/td>\n Sequential\n <\/td><\/tr>
\n Chamber measurement cycle duration\n <\/td>\n About 20 s\n <\/td><\/tr>
\n Sampling time interval\n <\/td>\n 5 to 120 min, user-defined\n <\/td><\/tr>
\n Leaf chamber aperture\n <\/td>\n 10 sq. cm\n <\/td><\/tr>
\n Standard hose length and inner diameter\n <\/td>\n 4 m, ID=2.4 mm\n <\/td><\/tr>
\n CO2<\/sub> measurement principle\n <\/td>\n Non-dispersive infrared analyzer\n <\/td><\/tr>
\n CO2<\/sub> concentration measurement range\n <\/td>\n 0 to 1000 ppm\n <\/td><\/tr>
\n Measurement range of CO2<\/sub> exchange\n <\/td>\n -70 to 70 \u00b5molCO2<\/sub>m-2<\/sup>s-1<\/sup>\n <\/td><\/tr>
\n H2<\/sub>0 measurement principle\n <\/td>\n Integrated air temperature and humidity sensor\n <\/td><\/tr>
\n Air flow control rates\n <\/td>\n Adaptive, from 0.25 LPM  to 0.5 LPM, \n <\/td><\/tr>
\n Power requirements\n <\/td>\n 9 to 24 Vdc\n <\/td><\/tr>
\n Communication\n <\/td>\n Built-in 2.4 Ghz RF modem with\n the USB RF Adapter for PCOptional 3G Modem\n \n <\/td><\/tr>
\n Operating temperature\n <\/td>\n 10 to 40 \u00b0C\n <\/td><\/tr>
\n Environmental protection index\n <\/td>\n IP55\n <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

BASIC\nSET for ORDERING <\/h1>\n\n\n\n