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PSY1

Leaf Psychrometer

May, 2018

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Summary of Contents for PSY1

Page 1: ...PSY1 Leaf Psychrometer May 2018...

Page 2: ...H24 Power Supply 8 3 1 4 Connecting Power Directly via Solar Panel Field Operation 9 4 Cleaning the Psychrometer Chamber 10 5 Install ICT Combined Instrument Software and USB Driver 11 6 Turn the Inst...

Page 3: ...re and install the Leaf Psychrometer is different to the Stem Psychrometer as it requires additional care to prepare the installation site The PSY1 Leaf Psychrometer is comprised of PSY1 Logger Leaf P...

Page 4: ...rful computer Recommended Minimum System Specifications Intel Atom 1 66 GHz and 1GB RAM or higher 2 2 Software The ICT Instrument software is compatible with the following Operating Systems a Windows...

Page 5: ...bus plug design was developed by ICT International to simplify the electrical wiring process It minimises the need for custom tools in the field requiring only that the outer cable sheath be stripped...

Page 6: ...Enabling better global research outcomes in soil plant environmental monitoring 6 3 1 Connecting a Power Supply to the Instrument 3 1 1 Individual Power Supply Connections...

Page 7: ...Enabling better global research outcomes in soil plant environmental monitoring 7 3 1 2 Connecting Power via USB Cable to a Laptop PC...

Page 8: ...of an external battery or constant power supply for days to months at a time is not recommended as this can shorten the life of the internal battery ICT International recommend using a solar panel dir...

Page 9: ...Enabling better global research outcomes in soil plant environmental monitoring 9 3 1 4 Connecting Power Directly via Solar Panel Field Operation Note The PSY1 is non polarised...

Page 10: ...ade of very fine 25 m wire This makes the sensor very sensitive for measuring water potential but equally sensitive to dirt and mild oxidation It is recommended that before starting any measurements y...

Page 11: ...choose ICT Instrument Software b Follow the on screen prompts until the finished installation screen appears To install the USB driver choose USB Driver c and wait for the installation to complete Al...

Page 12: ...nmental monitoring 12 6 Turn the Instrument On To turn on your PSY1 connect the Instrument to a computer via a USB cable Alternatively the PSY1 can either be turned on manually by pressing the power b...

Page 13: ...to the Instrument Connect the USB cable to the instrument and the computer The PSY1 will automatically be detected by the computer as with any USB device Open ICT Instrument Software and Search for De...

Page 14: ...Combined Instrument software Tick Auto RF Discover and then Search for Devices The MCC Mini should appear on the list it will then automatically search for nearby ICT Instruments You can double click...

Page 15: ...s When you connect to an instrument the Channels screen will be displayed This shows the current measurement status when the next measurement will take place the currently configured channels instrume...

Page 16: ...condenses and cools the thermocouple A wait time of six seconds allows for stabilisation of the psychrometric wet bulb depression Chamber Heating Chamber heating should be used whenever the psychromet...

Page 17: ...recommended that the psychrometer is calibrated before each installation The calibration employs a 6 point measurement protocol using NaCl solutions of known molalities The calibration must be done u...

Page 18: ...g 18 8 3 Diagnostics Temperature Correction Constants C1 and C2 should not be changed unless advised to do so by an ICT Technician Reverse Peltier Warming Reverse Peltier is not normally required for...

Page 19: ...g Options These settings allow you to select what is recorded to the SD card By default everything except Raw Data is logged Raw Data creates a separate data file on the SD card in addition to the sta...

Page 20: ...the Dataview repository and allows for basic graphing from the data tab On Windows the repository is located at localappdata ICT Data Files Select Channels is used to select which logger outputs chann...

Page 21: ...wnload File downloads the selected file to the location of your choice Rename File allows you to change the name of the selected file Note that if the instrument data file is renamed a new file will b...

Page 22: ...unched sand paper glued to dowel right After abrading the surface rinse and dry the site to remove any potential solute contaminants that may offset leaf water status Apply a small amount of silicon v...

Page 23: ...Enabling better global research outcomes in soil plant environmental monitoring 23 Grit Selection Level of Abrasion...

Page 24: ...nmental monitoring 24 ICT International Pty Ltd Enabling better global research outcomes in soil plant environmental monitoring www ictinternational com sales ictinternational com au Phone 61 2 6772 6...

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