EC150 CO
2
/H
2
O Open-Path Gas Analyzer
9
CSAT3 sonic reporting range
Full scale wind:
±65.6 m/s
Sonic temperature:
−
50 to 60 °C
Auxiliary sensors
Barometer
Internal basic barometer
Accuracy
−
30 to 0 °C:
±3.7 kPa at
−
30 °C, falling linearly
to
±1.5 kPa at 0 °C
0 to 50 °C:
±1.5 kPa
Measurement rate:
10.0 Hz
Optional enhanced barometer
Manufacturer:
Vaisala
Model:
PTB110
Accuracy:
±0.15 kPa (
−
30 to 50 °C)
Measurement rate:
1.0 Hz
EC150 temperature sensor
Manufacturer:
BetaTherm
Model:
100K6A1A Thermistor
Accuracy:
±0.15 °C (
−
30 to 50 °C)
5.2 Output Signals
The EC100 electronics can output data from the EC150 by several means.
•
Campbell Scientific SDM
•
RS-485
•
USB
•
Analog out
Synchronous Device for Measurement communications protocol, or SDM, is a
proprietary serial interface developed by Campbell Scientific for
communication between a datalogger and a peripheral or sensor. In almost all
cases, SDM is the preferred communications protocol with the exception of
measurement heights requiring cable lengths greater than 100 meters. In this
case, RS-485 output is recommended. See Section
(p. 5)
for details on SDM output, see Appendix
(p. C-1)
for greater detail on RS-485, USB, or analog outputs.
SDM communications are output as the FLOAT data type.
5.3 Physical Description
Optical measurement path length:
15.37 cm (6.05 in)
Spatial separation from
CSAT3A sampling volume:
5.0 cm (2.0 in)
7
refer to manufacturer’s product brochure or manual for details
Summary of Contents for EC150
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Page 67: ...Appendix B Filter Bandwidth and Time Delay B 4 ...
Page 75: ...Appendix D Useful Equations D 4 ...
Page 76: ...E 1 Appendix E Safety Data Sheets SDS E 1 Molecular Sieve Type 13X ...
Page 77: ...Appendix E Safety Data Sheets SDS E 2 ...
Page 78: ...Appendix E Safety Data Sheets SDS E 3 ...
Page 79: ...Appendix E Safety Data Sheets SDS E 4 ...
Page 80: ...Appendix E Safety Data Sheets SDS E 5 E 1 Magnesium Perchlorate ...
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Page 87: ...Appendix E Safety Data Sheets SDS E 12 E 2 Decarbite ...
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Page 92: ...F 1 Appendix F Packing Information F 1 EC150 GH Packing Information ...
Page 93: ...Appendix F Packing Information F 2 F 2 EC150 SH Packing Information ...
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