Campbell-scientific EC150 CO2 and H2O Open-Path Gas Analyzer and EC100 User Manual Page 18
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EC150 CO
2
/H
2
O Open-Path Gas Analyzer
Gas analyzer
Measurement precision
iii
CO
2
density: 0.2 mg·m
–3
(0.15 µmol·mol
–1
)
H
2
O density: 0.004 g·m
–3
(0.006 mmol·mol
–1
)
Factory calibrated range
CO
2
: 0 to 1000 µmol·mol
–1
H
2
O: 0 to 72 mmol/mol (37°C dewpoint)
Temperature: −30° to 50°C
Barometric pressure: 70 to 106 kPa
CO
2
performance
Zero max drift
iv
: ±0.55 mg·m
–3
·°C
–1
(± 0.3
μmol·mol·°C
–1
)
Gain drift: ±0.1% of reading·°C
–1
(maximum)
Sensitivity to H
2
O: ±1.1 x 10
–4
µmol CO
2
·mol
–1
H
2
O (max)
H
2
O performance
Zero max drift
iv
: ±0.04 g·m
–3
·°C
–1
(± 0.05 mmol·mol
–1
·°C
–1
)
Gain drift: ±0.3% of reading·°C
–1
(maximum)
Sensitivity to CO
2
: ±0.1 mol H
2
O·mol
–1
CO
2
(maximum)
CSAT3A sonic measurement precision
v
u
x
: 1.0 mm·s
–1
u
y
: 1.0 mm·s
–1
u
z
: 0.5 mm·s
–1
Sonic temperature: 0.025°C
CSAT3A sonic accuracy
vi
Offset error
u
x
, u
y
: < ±8 cm·s
–1
u
z
: < ±4 cm·s
–1
Gain error
Wind vector ±5° horizontal: < ±2% of reading
Wind vector ±10° horizontal: < ±3% of reading
Wind vector ±20° horizontal: < ±6% of reading
iii
noise rms, assumes:
o 25°C
o 85 kPa
o 14 g·m
-3
H
2
O
o 597 mg·m
-3
CO
2
o 25 Hz bandwidth
iv
−30° to 50°C
v
noise rms
vi
assumes:
o −30° to +50°C
o wind speed <30 m·s
-1
o azimuth angles between ±170°
8
- INSTRUCTION MANUAL 1
- Limited Warranty 3
- Assistance 4
- Precautions 5
- Table of Contents 7
- Figures 9
- EC150 CO 11
- O Open-Path Gas 11
- Analyzer 11
- 3. Initial Inspection 12
- 4. Overview 12
- 4.3 Gas Head Memory 13
- 4.6.2 EC100 Outputs 14
- 4.8 Theory of Operation 16
- 5. Specifications 17
- 5.2 Output Signals 19
- 5.3 Physical Description 19
- 5.4 Power Requirements 20
- 6. Installation 21
- 6.3 Wiring and Connections 29
- 7. Zero and Span 32
- 7.2 Zero and Span Procedure 33
- or gain) for CO 37
- 8.2 Gas Analyzer Wicks 38
- 8.4 Zero and Span 39
- 8.5 Replacing CO 40
- Scrubber Bottles 40
- 8.6 Factory Recalibration 41
- 8.7 Troubleshooting 42
- 8.7.4 Diagnostic Flags 43
- Appendix A. EC150 Settings 49
- A.2.1 SDM Address 50
- A.2.2 Bandwidth 50
- A.2.3 Unprompted Output 50
- A.2.5 RS-485 Baud Rate 51
- A.2.6 Analog Output 51
- A.2.7 ECMon Update Rate 51
- A.2.8 Temperature Sensor 51
- A.2.10 Pressure Sensor 52
- A.2.10.1 Pressure Gain 54
- A.2.10.2 Pressure Offset 54
- A.3 ECMon 55
- A.6 Example CRBasic Program 60
- C.1 USB or RS-485 Output 65
- C.2 Analog Output 67
- Analog Outputs 68
- 109.5102.300072.1 PTPf 70
- Sheets (MSDS) 73
- E.2 Decarbite MSDS 80
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