Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manual de usuario descargar pdf (Pagina 31)

CPEC200 Closed-Path Eddy-Covariance System

5.2 Plumbing

FIGURE 5-4 shows the basic plumbing configuration of a CPEC200 including

the cylinders required for zero and span operations.

FIGURE 5-4. Plumbing connections

5.2.1 Pump Module

Connect the EC155 to the pump module, see FIGURE 5-5. If the EC155 is

within 15 m (50 ft) of the pump module, 3/8-in OD tubing, such as pn 26506,

is recommended. For longer distances of up to 150 m (500 ft), a 1/2-in OD

tube (pn 25539) is recommended to minimize pressure drop in the tube.

The fittings on the EC155 and the pump module are sized for 3/8-

in OD tubing. A reducer is required at each end for the larger

tubing size. Campbell Scientific supplies pre-swaged pump tube

assemblies pn 26503-L (1/2-in OD), with reducers at each end for

this purpose.

Connect one end of the pump tube to the fitting labeled Pump on the back of

the EC155 analyzer. Connect the other end to the fitting labeled Inlet on the

CPEC200 pump module as shown in FIGURE 5-5.

NOTE

Zero Air Tubing

Pump Tubing

Pump Module Cable

Span Gas

Tubing

Analyzer Tubing

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 111 112

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Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manual de usuario Pagina 31