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Preparations for Use

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CIRAS-2 Operator's Manual Version 2.04

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Preparations for Use

Your system has been factory calibrated before shipment to you.  Therefore, there is no need to perform a
calibration of your equipment prior to use.

At  this  point you  should  have  installed  the  CIRAS-2  Remote  Control Software (supplied on CD ROM) to
the  computer(s)  you  will  use  to  operate  CIRAS-2.    Both  the  Windows  (for  use  with  your  notebook  or
desktop  PC)  and  Windows  CE  (factory-installed  on  the  User  Interface)  versions  of  CIRAS-2  RCS  are
virtually  identical.    We  recommend  familiarizing  yourself  thoroughly  with  CIRAS-2  in  a  controlled  indoor
setting before taking the system into the field.

To install the software, please refer to the

Getting Started

section of the

Operator‟s Manual on page 13.

System Preparation

Step 1

. Insert 12V NiMH battery packs into main console

Step 2

. Connect CIRAS-2 power supply

Step 3

. Make Leaf Cuvette electrical and gas connections

Step 4

. Connect leaf cuvette power cable to external 12V DC Power Supply

Step 5

. Inspect absorber columns (desiccants, etc.) and water vapor equilibrator

Step 6

. Insert CO2 cartridge

Step 7

. Connect CIRAS-2/PC interface cable (optional for computer RCS control)

Step 8

. Power on CIRAS-2

Step 9.

Close the leaf cuvette

Step 10

. Start the CIRAS-2 Remote Control Software on your PC (optional for computer RCS control)

Step 1. Insert 12V NiMH battery packs into main console

For field measurements, the 12V NiMH battery packs should be fully charged for optimal results.  This is
best  achieved  by  connecting  the  batteries  to  their  respective  chargers  the  night  prior  to  measurements.
This  ensures  that  the  battery  packs  are  fully  charged  and  ready  to  power  the  console  and  cuvette  for
several  hours  of  field  measurements,  depending  on  temperature  and  LED  light  use.    Batteries  should
have arrived fully charged with your CIRAS-2 shipment.

If the batteries require charging, unscrew the threaded cover connector on the battery pack, and taking the
battery  charger  cable,  align  the  battery  charger  connector  with  the  three-pin  battery  pack  connector.
Thread  the  cable  connector  clockwise  to  complete  the  connection.  The  battery  chargers  have  an  LED
indicator  that  glows  red  while  fast-charging  and  green  in  the  fully  charged  state.    Normally,  it  takes
approximately 4 hours for a discharged battery to be fully charged.

The  CIRAS-2  main  console  has  two  battery  compartments  which  accept  the  left  and  right  12V  NiMH
battery packs supplied with your system.  Each battery pack has a thick notch (12mm) on the bottom and
thin  notch  (6mm)  on  the  top,  so  the  batteries  are  properly  oriented  with  the  positive/negative  battery
terminals towards the bottom.  Assuming the battery packs are fully charged, slide one battery into the left
battery compartment until it snaps into place.  Slide the other battery into the right battery compartment.