LI-COR LI-7500, Instruction Manual

Page: 113 / 155

Appendix A
A-2 Appendix A
Control Box: 35 cm
×
30 cm
×
15 cm (external dimensions).
IRGA cable: 3 meters (between sensor head and electronics control box).
Power, Serial, DAC, Auxiliary Input and SDM cables: 4 meters
Weight: Head: 0.75 kg (1.65 lb.), Control Box and Cables: 4.8 kg (10.5 lb.)
†
at 25
°
C, 98 kPa
✳
Power Spectral Density
CO
2
Calibration range
Bandwidth:
5 Hz
10 Hz
20 Hz
Maximum
Typical
Maximum
Typical
Maximum
Typical
Zero drift with temperature (per
°
C)
Gain drift with temperature at 370 ppm
(% of reading per
°
C)
Direct sensitivity to H
2
O (mol CO
2
/mol H
2
O)
RMS noise at ambient (370 ppm)
PSD
✳
= 35 ppb/
µ
mol mol
-1
mmol m
-3†
mg m
-3†
0 - 3000 0 - 117 0 - 5148
0.08
0.11
0.16 0.0031
0.0043
0.0061 0.13
0.19
0.27
±
0.3
±
0.1
±
0.012
±
0.004
±
0.5
±
0.2
±
0.1%
±
0.02%
±
4.00E-05
±
2.00E-05
Hz typical
70 ppb/ Hz max.
Bandwidth:
5 Hz
10 Hz
20 Hz
H
2
O
Calibration range
Maximum
Typical
Maximum
Typical
RMS noise in moist air (10 mmol mol
-1
)
Gain drift with temperature at 20 mmol mol
-1
(% of reading per
°
C)
Direct sensitivity to CO
2
(mol H
2
O/mol CO
2
)
mmol mol
-1
mmol m
-3†
g m
-3†
0 - 60 0 - 2340 0 - 42
0.0034
0.0047
0.0067 0.13
0.18
0.26 0.0024
0.0033
0.0047
Maximum
Typical Zero drift with temperature (per
°
C)
±
0.05
±
0.03
±
2
±
1
±
0.04
±
0.02
±
0.3%
±
0.15%
±
0.05
±
0.02
PSD
✳
= 1.5 ppm/ Hz typical
2.5 ppm/ Hz max.
* Specifications subject to change without notice.