B08_ATCH_1_SALIENTS.pdf
PDF 244 KB Posted
- Attached to
- Carbon Flux Sensor IAW Salients
- Solicitation number
- 140G0126Q0189
About this file
This is a Salient Characteristics document (S26054) that specifies requirements for a Carbon Flux Sensor procurement. The requirement calls for two Carbon Flux Sensors that function as all-in-one, turnkey ecological monitoring units combining wind and high-frequency gas measurements for direct Eddy Covariance CO₂ flux measurements. Each sensor must sample CO₂ concentration at 10 Hz with processed flux output every 30 minutes, maintain a CO₂ measurement range of 0 to 1500 µmol mol⁻¹ with 1.5% accuracy, and H₂O measurement range of 0 to 60 mmol mol⁻¹ with 1.5% accuracy. Additional sensor requirements include air temperature, pressure, relative humidity, and photosynthetically active radiation measurements, along with a broadband infrared gas analyzer with modulated light source and no moving parts or active temperature controls.
The sensors must include built-in GPS, tilt and orientation sensors (magnetometer/accelerometer), and embedded processing features for on-site computation with Cloud integration for diagnostics and data access. Power specifications require operation from 12 VDC (nominal) or standard USB 2.0 or newer, consuming no more than 1.5 watts with solar power compatibility. Communication interfaces must include SDI-12, RS-232, and USB-micro, with capability to output raw data via RS-232 and flux data via SDI-12. Each sensor requires a removable 8 GB microSD card, operates from -25 to 50°C, and includes a 5-meter power/communication cable. The procurement also includes one 25-meter extension cable (shielded and compatible with the sensor) and two 5-year service agreements covering extensive damage replacement, manufacturing defect repair or replacement, free loaner units during repair, prioritized service, free return and priority shipping, two free calibrations, and cavity replacement for trace gas analyzer components.
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Other files
| File | Type | Posted |
|---|---|---|
| B08_ATCH_2_508.pdf | ||
| Sol_140G0126Q0189.pdf | ||
| B08_ATCH_3_FISMA.pdf |
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Text version
Salient Characteristics S26054
CARBON FLUX SENSOR
Salient Characteristics
2 ea. Carbon Flux Sensor:
1. Shall consist of an all-in-one, turnkey, ecological monitoring unit that combines wind and high-frequency gas measurements for direct Eddy Covariance (EC) CO₂ flux measurements.
2. Shall be capable of sampling CO₂ concentration at 10 Hz and outputting processed fluxes every 30 minutes.
3. Shall have a CO2 measurement range of 0 to 1500 umol mol-1 with an accuracy within 1.5% of reading.
4. Shall have a H20 measurement range of 0 to 60 mmol mol-1 with an accuracy within 1.5% of reading.
5. Shall include sensors for air temperature, pressure, relative humidity, and photosynthetically active radiation (PAR) measurements.
6. Shall include a broadband infrared gas analyzer with a modulated light source and contain no moving parts or active temperature controls.
7. Shall include built-in GPS along with tilt and orientation sensors (magnetometer/accelerometer) for accurate time, location, and sensor alignment.
8. Shall include embedded processing features that enable on-site computation, with seamless integration to the Cloud for diagnostics, QA/QC, and timely data access.
9. Shall be capable of being powered from a 12 VDC (nominal) power source, or from a standard USB port (2.0 or newer).
10. Shall consume no more than 1.5 watts and be solar power compatible.
11. Shall include SDI-12, RS-232, and USB-micro communication interfaces.
12. Shall be capable of outputting raw data via RS-232 and flux data via SDI-12.
13. Shall include a removable microSD card with a capacity of at least 8 GB.
14. Shall operate over a temperature range from at least -25 to 50o C.
15. Shall include a 5-m power/communication cable.
16. System shall include features, parts, and/or components for power, mounting, and IoT/Cloud connectivity, system setup, and operation.
1 ea. Extension Cable:
17. Shall consist of a 25-m power/communication cable.
18. Shall be shielded and compatible with the sensor described above.
2 ea. Service Agreement:
19. Shall consist of a 5-year service agreement for the sensor described above.
20. At a minimum, the agreement shall cover:
• extensive damage replacement from water damage, impact damage, or voltage damage.
• repair or replacement for any manufacturing defects
• a free loaner during repair downtime
• service priority; prioritized for repairs and support
• free return shipping and priority shipping
• 2 ea. free calibrations over the life of the agreement
• Cavity replacement for trace gas analyzer components.
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