LI-COR LI-7810, Instruction Manual

Page: 90 / 98

Appendix C. Specifications
Battery Life: 8 hours typical with 2 batteries
Pollution Degree: 2
Over-voltage Category: II
Class 1 Laser Product
CH
4
Measurements
Response Time (T
10
- T
90
): ≤ 2 seconds from 0 to 2 ppm
Range: 0 to 100 ppm
Precision (1
σ
):
0.60 ppb at 2 ppm with 1 second averaging
0.25 ppb at 2 ppm with 5 second averaging
Maximum Drift: < 1 ppb per 24-hour period
CO
2
Measurements
Range: 0 to 10,000 ppm
Precision (1
σ
):
3.5 ppm at 400 ppm with 1 second averaging
1.5 ppm at 400 ppm with 5 second averaging
H
2
O Measurements
Range: 0 to 60,000 ppm
Precision (1
σ
):
45 ppm at 10,000 ppm with 1 second averaging
20 ppm at 10,000 ppm with 5 second averaging
C-2 LI-7810 CH₄/CO₂/H₂O Trace Gas Analyzer