PSY1 Stem Psychrometer

The PSY1 Stem Psychrometer is a very powerful tool integrating all the ambient environmental parameters acting upon the plant such as solar radiation, temperature, humidity, wind speed and water availability into a single continuously measurable variable.

  • Product Name:PSY1 Stem Psychrometer
  • Item No.:PSY1 Stem Psychrometer
  • Manufacturers:ICT
  • Country of Origin:Australia

The PSY1 Stem Psychrometer is a very powerful tool integrating all the ambient environmental parameters acting upon the plant such as solar radiation, temperature, humidity, wind speed and water availability into a single continuously measurable variable.

The PSY1 is a stand-alone instrument for the measurement of stem water potential. It can continuously log changes in plant water status/potential, which directly reflect the energy required to access water or the stress the plant is under.


PSY1 Psychrometer Features

  • Stem, leaf and root water potential

  • Ambient environmental parameters integration

  • Hydraulic conductivity

  • Plant water relations

  • Growth potential

Optimal logging solution: Plant Water Potential


INSTRUMENT LOGGING

  • Analogue Channels

        1x Input, (1x Sensor) High precision 24bit ADC circuit 1x

        Output – PSY Chamber Heater Circuit

  • Minimum Logging Interval      1 second

  • Delayed Start      Suspend Logging, Customised Intervals

  • Sampling Frequency      10Hz


DATA

  • Communications      USB, Wireless Radio Frequency 2.4 GHz

  • Data Storage      MicroSD Card, SD, SDHC & SDXC Compatible (FAT32 format)

  • Software Compatibility      Windows 7, 8, 8.1, 10 and Mac

  • Data Compatibility

        FAT32 compatible for direct exchange of SD card with any

        Windows PC and Mac

  • Data File Format

        Comma Separated Values (CSV) for compatibility with all

        software programs

  • Memory Capacity      Up to 16GB, 4GB MicroSD card included.


OPERATING CONDITIONS

  • Temperature Range      -40°C to +80°C

  • R/H Range      0-100%

  • Upgradable

        User Upgradeable firmware using USB boot strap loader

        function


POWER

  • Internal Battery Specifications

       960mAh Lithium Polymer, 4.20 Volts fully charged

  • External Power Requirements

  • Bus Power

        8-30 Volts DC, non-polarised, current draw is 190mA

        maximum at 17 volts per logger

  • USB Power      5 Volts DC


Internal Charge Rate

  • Bus Power

        60mA – 200mA Variable internal charge rate, maximum

        charge rate of 200mA active when the external voltage rises

        above 16 Volts DC

  • USB Power      100mA fixed charge rate

  • Internal Power Management

  • Fully Charged Battery      4.20 Volts

  • Low Power Mode      3.60 Volts – Instrument ceases to take measurements

  • Discharged Battery

        2.90 Volts – Instrument automatically switches off at and

        below this voltage when no external power connected.

  • Battery Life varies

        With a recommended power source connected, operation can be continuous.

        3 days at hourly logging interval without chamber heating

        1 day with chamber heating