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This product is no longer available and has been replaced by: CPEC310.
CPEC200 Closed-Path Eddy-Covariance System
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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.

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利点と特徴

  • Fully integrated system with all the plumbing
  • Low-power operation
  • Excellent frequency response
  • Optional automatic zero and span

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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
  • 12 W (typical)
  • 35 W (maximum, at cold startup)

System Enclosure
Dimensions 52.1 x 44.5 x 29.7 cm (20.5 x 17.5 x 11.7 in.)
Weight
  • 11.6 kg (25.5 lb) for basic system
  • 1.6 kg (3.7 lb) for CR3000
  • 154 g (5.4 oz) for CFM100/NL116
  • 1.5 kg (3.3 lb) for three-valve module
  • 1.9 kg (4.2 lb) for six-valve module

Pump Module
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
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
Power
  • 0 W (quiescent)
  • 2 W (with pump running)
  • 8 W (with heater running)
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)

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.

更新履歴をみる

CPEC200 CR3000 Program () 01-09-2011

Micrometeorology Group (435) 227-9100.

Call

Device Configuration Utility v.2.32 (47.7 MB) 19-03-2025

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)

更新履歴をみる

EC100 OS v.8.02 (560 KB) 14-10-2019

EC100 Operating System.

Watch the Video Tutorial: Updating the EC100 Operating System.

更新履歴をみる

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

  1. With the new vortex intake, has the power drain changed for the pump module fan for the CPEC200?
  2. How is the intake pipe of the CPEC200 heated?
  3. For the CPEC200, is the heater on the vortex intake controlled the same way as it was prior to the addition of the vortex intake?
  4. Is the heater for the CPEC200 positioned along the intake pipe?
  5. Has the vortex intake changed the way the pump for the CPEC200 works?
  6. AP200 または CPEC200 のポンプが摩耗した場合、修理できますか、それとも交換する必要がありますか?
  7. AP200 または CPEC200 のサンプルポンプの寿命はどのくらいですか?
  8. 一部のチューブは接続が難しく、ナットを完全に締めるにはレンチが必要なのはなぜですか? これについて何か対処法はありますか?
  9. What is the recommended tubing for CPEC200 zero/span connections?
  10. 28549 電源アダプタ キットの電源コードが短すぎる場合、延長コードを使用できますか?
よくある質問一覧はこちら

ケーススタディ

オーストラリア：生態学的研究
オーストラリア：生態学的研究
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
ブリティッシュコロンビア州：森林炭素隔離
ブリティッシュコロンビア州：森林炭素隔離
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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