LI-COR LI7200RS, Instruction Manual

Page: 185 / 226

A-1 LI-7200RS Enclosed CO₂/H₂O Analyzer
Appendix A.
Specifications
CO
2
Measurements
Calibration Range: 0 to 3000 µmol mol
-1
Accuracy: Within 1% of reading
Zero Drift (per °C):
±0.1 ppm typical; ±0.3 ppm maximum
RMS Noise (typical @ 370 ppm CO
2
):
@5 Hz: 0.08 ppm
@10 Hz: 0.11 ppm
@20 Hz: 0.16 ppm
Gain Drift (% of reading per °C @ 370 ppm):
±0.02% typical; ±0.1% maximum
Direct Sensitivity to H
2
O (mol CO
2
mol
-1
H
2
O):
±2.00E-05 typical; ±4.00E-05 maximum
H
2
O Measurements
Calibration Range: 0 to 60 mmol mol
-1
Accuracy: Within 2% of reading
Zero Drift (per °C):
±0.03 mmol mol
-1
typical; ±0.05 mmol mol
-1
maximum
RMS Noise (typical @ 10 mmol mol
-1
H
2
O):
@5 Hz: 0.0034 mmol mol
-1
@10 Hz: 0.0047 mmol mol
-1
@20 Hz: 0.0067 mmol mol
-1
Gain Drift (% of reading per °C @ 20 mmol mol
-1
):
±0.15% typical; ±0.30% maximum
Direct Sensitivity to CO
2
(mol H
2
O mol
-1
CO
2
):
±0.02 typical; ±0.05 maximum