PP Systems CIRAS-3 - Section 1. Technical Specification; CIRAS-3 Main Console

CIRAS-3 Operation Manual V. 1.09 33 support@ppsystems.com
Section 1. Technical Specification
CIRAS-3 Main Console
Analysis Method
Non-dispersive infrared, configured as an absolute absorptiometer with
microprocessor control of linearization. Four independent gas
analyzers simultaneously measure absolute CO
2
and H
2
O for both the
reference and analysis gas streams. All measurements corrected for
temperature and pressure.
CO
2
Measurement Range
0-10000 µmol mol
-1
CO
2
Precision
• 0.2 µmol mol
-1
at 300 µmol mol
-1
• 0.5 µmol mol
-1
at 1750 µmol mol
-1
• 3.0 µmol mol
-1
at 10000 µmol mol
-1
CO
2
Control Range
0-2000 µmol mol
-1
H
2
O Measurement Range
0-75 mb
H
2
O Precision
• 0.015 mb at 0 mb
• 0.020 mb at 10 mb
• 0.030 mb at 50 mb
H
2
O Control Range
0-Dewpoint or 0-100% Ambient
Pressure Range
65-115 kPa
Air Sampling
User adjustable from 50-100 cc min
-1
using integral DC pumps. Both
analysis and reference pumps fitted with mass flow controllers.
Cuvette Air Supply Unit
(Integral)
0-500 cc min
-1
measured and controlled by a mass flow meter.
Auxiliary Port
For connection to external devices (i.e. SRC-1 Soil Respiration
Chamber, CPY-4 Canopy Assimilation Chamber).
Digital Output
• USB-Mini b (Host)
• 2 Ea. USB for use with external devices (Memory stick, USB
Mouse, etc.).
Data Storage
512 MB flash memory for programming and data storage. Unlimited
data storage using USB thumb drives (memory sticks).
Microprocessor Speed
800 MHz
Display
7.0” WSVGA transflective, color LCD
User Input
27 tactile keys