This product is no longer available and has been replaced by: CPEC310.
| 利用できるサービス | |
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| 修理 | 対応 |
| キャリブレーション | 対応 |
| フリーサポート | 対応 |
概要
The CPEC200 is a turn-key, closed-path eddy-covariance (EC) flux system for long-term monitoring of atmosphere-biosphere exchanges of carbon dioxide, water vapor, heat, and momentum. A complete system consists of a closed-path gas analyzer (EC155 closed-path gas analyzer), sonic anemometer (CSAT3A sonic anemometer), data logger (CR3000 datalogger), and sample pump. A valve module is also available for automated zero and span.
The gas analyzer’s intake design and small sample cell volume (5.9 mL) provide excellent frequency response (4.3 Hz cutoff frequency) with low total system power (12 W). Additionally, the vortex intake (United States Patent No. 9,217,692) greatly reduces maintenance and maintains frequency response compared to traditional inline filters.
続きを読む利点と特徴
- Fully integrated system with all the plumbing
- Low-power operation
- Excellent frequency response
- Optional automatic zero and span
イメージ
詳細
The gas analyzer’s small sample cell volume (5.9 ml) minimizes the sample residence time (50 ms at the system’s nominal flow rate, 7 LPM). This gives excellent frequency response (5.8 Hz half-power bandwidth) with low total system power (12 W).
Eddy-Covariance Measurements
CO2 and H2O are measured with an EC155 Closed-Path Gas Analyzer. Three-dimensional wind speed and sonic air temperature are measured with a CSAT3A sonic anemometer head.
CPEC200 System Enclosure
A 16 in. by 18 in. fiberglass enclosure houses the data logger, optional data storage peripheral, optional valve module, and the electronics that interface with the CPEC200 pump module. The CPEC200 system enclosure can be mounted to a tripod mast, CM106 tripod leg base, tower legs, or a large diameter pole.
CPEC200 Pump Module
The pump module, a standard component of the CPEC200 system, consists of a small dual-head diaphragm pump with a brushless DC motor mounted inside a fiberglass enclosure. An integral cable connects the pump module to the CPEC200 system enclosure, which provides power, temperature measurement and control, pressure measurement, and pumping speed measurement and control.
Valve Module (Optional)
Campbell Scientific offers two valve module versions. The basic three-valve module (pn 27559) enables the CPEC200 system to automatically perform zero, CO2 span, and H2O span measurements. The six-valve module (pn 26578) includes three additional valves to allow more CO2 span tanks to be measured. The valve module is housed inside the CPEC200 system enclosure. The outlet of the manifold has a proportional valve to automatically control the flow of zero/span gas.
Scrub Module (Optional)
A scrub module (pn 27423) is available for the CPEC200 which provides a zero air reference source for the CPEC200 without the need for an extra cylinder which can be useful in remote applications. The CPEC200 scrub modules pulls ambient air through three bottles of molecular sieve, effectively scrubbing CO2 and water vapor from ambient air to produce the reference zero. The scrub module and its small diaphragm pump are housed within a weather-tight fiberglass enclosure which is compatible with a variety of mounting options.
| Note: Contact the Campbell Scientific Micromet group for questions or updates regarding the data logger program. |
仕様
| Operating Temperature Range | -30° to +50°C |
| Input Voltage Range | 10.5 to 16.0 Vdc |
| Power |
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System Enclosure |
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| Dimensions | 52.1 x 44.5 x 29.7 cm (20.5 x 17.5 x 11.7 in.) |
| Weight |
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Pump Module |
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| Inlet Connection | 3/8-in. Swagelok |
| Pumping Speed | 3 to 9 LPM (automatically controlled at the setpoint, typically 7 LPM) |
| Pressure Sensor Range | 15 to 115 kPa |
| Cable Length | 3.0 m (10 ft) |
| Dimensions | 35.6 x 29.2 x 13.5 cm (14.0 x 11.5 x 5.3 in.) |
| Weight | 5.4 kg (11.8 lb) without mounting bracket |
Valve Module |
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| Inlets for Three-Valve Module | Zero, CO2, span, and H2O span |
| Inlets for Six-Valve Module | Zero, CO2 span 1 to CO2 span 4, and H2O span |
| Outlets | Analyzer and H2O bypass |
| Connections | 1/4-in. Swagelok |
| Dimensions | 14.0 x 12.7 x 14.0 cm (5.5 x 5.0 x 5.5 in.) |
| Weight of Three-Valve Module | 1.5 kg (3.3 lb) |
| Weight of Six-Valve Module | 1.9 kg (4.2 lb) |
Scrub Module |
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| Power |
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| Cylinder Volume | 480 cm3 each (29.29 in.3) |
| Molecular Sieve Size | 1.6 to 2.5 mm beads |
| Enclosure Dimensions | 39.4 x 34.3 x 20.3 cm (15.5 x 13.5 x 8.0 in.) |
| Weight | 9.6 kg (21.1 lb) |
ドキュメント
マニュアル
テクニカルペーパー
コンプライアンス
その他
- Performance Evaluation of an Innovative Sampling System for Closed Path Eddy Covariance Measurements
- Using Molecular Sieve to Zero Infrared Gas Analyzers for Eddy Covariance or Atmospheric Profile Measurements
- Field-Performance Verification of Carbon Dioxide, Water, and Nitrous Oxide Closed-Path Eddy Covariance Systems with Vortex Intakes Poster
ダウンロード
CR3000 OS v.32.07 (4.39 MB) 15-05-2024
Execution of this download installs the CR3000 Operating System and Compiler on your computer. It also updates the CR3000 support files for the CRBasic Editor.
Note: The Device Configuration Utility is used to upload the included operating system to the datalogger.
Upgrading from versions prior to version 28 of the Operating System will reset the datalogger’s CPU drive. This is due to a change in the format of the file system from FAT16 to FAT32. In order for the datalogger to operate correctly, as part of the upgrade, the CPU drive is formatted to FAT32. Any programs stored and running from the CPU drive will be lost. It is not recommended to update the datalogger’s Operating System over a remote connection where program control regulates the communication equipment (turning it on or off, etc.). In these cases, an on-site visit and a backup using DevConfig’s backup utility is necessary to update the datalogger’s Operating System.
Watch the Video Tutorial: Sending an OS to a Local Datalogger.
In all cases where the datalogger is being updated from an Operating System prior to 28, the use of DevConfig’s backup utility is recommended due to the CPU drive being formatted using the new FAT32 format.
CPEC200 CR3000 Program () 01-09-2011
Micrometeorology Group (435) 227-9100.
Device Configuration Utility v.2.31 (47.0 MB) 18-12-2024
A software utility used to download operating systems and set up Campbell Scientific hardware. Also will update PakBus Graph and the Network Planner if they have been installed previously by another Campbell Scientific software package.
Supported Operating Systems:
Windows 11 or 10 (Both 32 and 64 bit)
EC100 OS v.8.02 (560 KB) 14-10-2019
EC100 Operating System.
Watch the Video Tutorial: Updating the EC100 Operating System.
ECMon v.1.6 (10.7 MB) 29-03-2016
EC100-Series Support Software.
CSAT3H Heater Controller v.14.2 (46 KB) 02-02-2021
The CSAT3H Heater Controller ships with this encrypted program. This program is for the unlikely event that the program needs to be re-installed or updated to a newer version. Please contact Campbell Scientific if you have questions about the program or would like the algorithm modified for a specific application.
よくある質問
CPEC200に関するよくある質問の数： 16
すべて展開すべて折りたたむ
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The pump module fan continues to draw 0.7 W while operational.
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There is no heater along the intake pipe of the CPEC200. An air gap insulates the intake pipe (1/8 in. OD) from the outer shell (1/2 in.ID), so the air traveling down the intake tube retains most of the heat absorbed at the intake.
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Yes, the heater is controlled the same way. Campbell Scientific recommends leaving the heater on all the time.
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The heater for the CPEC200 is not positioned along the intake pipe. The heater is in the "snout/rain-cap" of the vortex intake.
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Yes, the pump works a little harder with the new vortex. The recommended flow for the new vortex system is 8 LPM (6 to sample cell + 2 to bypass). 7 LPM was recommended for the original system. Also, the sample cell “differential” pressure is slightly lower (~-6kPa_new versus ~-3kPa_original). It’s a balance of parameters to maintain good frequency response, low power, and low maintenance.
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ポンプが故障した場合は、交換する必要があります。詳細については、Campbell Scientific にお問い合わせください。機器を Campbell Scientific に返送する手順については、「修理と校正」ページを参照してください。
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ナットとフィッティングのネジ山は、締めすぎたために損傷している可能性があります。ナットとフィッティングの両方を交換してください。
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ポンプには 1 年間の保証が付いています。ポンプの製造元は予想寿命を指定していませんが、ポンプの寿命は 1 年よりも大幅に長くなると予想されます。
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Campbell Scientific recommends Synflex 1300 (pn 15702, Raw Plastic Tubing .250 in. OD). This tubing has a durable polyethylene jacket and an aluminum wrap to limit diffusion through the wall. The aluminum layer also makes this tubing easier to work with, as it does not tend to spring back into a coiled shape as much as other tubing types.
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はい。28549 には、延長コードを簡単に使用できるように、現場で配線可能なプラグ (品番 28771) が付属しています。屋外での使用に適した延長コードを購入し、資格のある電気技師に延長コードのメスコネクタを現場で配線可能なプラグに交換してもらってください。これにより、電源コードの接合部が環境にさらされる問題を回避できます。
ケーススタディ
タスマニア州南西部にあるワラ長期生態学研究 (LTER) サイトは、湿潤ユーカリ林内の長期的な生態学的健全性と動態を監視するために 1995 年に設立されました。サイト面積は 15,900 ヘクタール (61.4 平方マイル) で、一部はタスマニア荒野世界遺産地域 (保護のために管理) に含まれ、一部は州有林 (木材生産を含む多目的に管理) に含まれています。サイトでの研究の主な研究目的は次の通りです。 過去の自然火災に起因する、混合年齢の高く湿ったユーカリの森における炭素蓄積と分解の生態生理学的プロセスと速度を研究する。 渦共分散微気象学的手法を用いて森林と大気の間の二酸化炭素、水蒸気、エネルギーの交換を測定する 生態生理学的プロセスと炭素蓄積および分解速度をサイトの生物相と関連付ける フラックスタワーの測定をリモートセンシングデータおよび地表モデルと組み合わせて使用し、地域規模での炭素と水の純交換を拡大および推定する。......続きを読む
森林生息地は、他のどの陸上バイオームよりも炭素循環とプロセスに貢献しています。地球の陸上に貯蔵されている炭素の半分以上が、森林生態系の幹、枝、葉、根、土壌に貯蔵されていると考えられています。炭素吸収源としての重要性を考えると、科学界では、さまざまな森林生息地、および同様の特性を持ちながらも樹齢が異なる森林における総炭素隔離を理解し、定量化することがますます急務となっています。 2001 年、学界、カナダ政府機関、民間部門のパートナーシップにより、ブリティッシュ コロンビア州バンクーバー島のアイランド ティンバーランドにある 13 年物のダグラスモミ林に高さ 20 メートル (65 フィート) のフラックス タワーが設置されました。この設置は、ダグラスモミの伐採サイクル生産性に関する長期的クロノシーケンス研究の一環です。ブリティッシュ コロンビア大学の科学者は、2001 年以来、渦相関 (EC)......続きを読む
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