Campbell-scientific CVS4200 / BVS4300 Stationary Samplers Manual de usuario descargar pdf (Pagina 20)

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-2. CVS4200 Sampler Component Descriptions

Number Item Description

1 Intake Hose Connection

The volume control tube is where the intake hose is connected to

the sampler. This stainless steel tube is raised or lowered

manually using fitting to set the sample volume (see FIGURE

5-3).

2 Multi-Function Input Controller This is where sampler is controlled and programmed.

Signal Lights and Control

Switch

The optional top light (green) indicates sampler is running. The

second light (red) indicates reverse polarity if external battery is

being used. The toggle switch turns on/off the controller while

leaving power to the sampler.

4 Metering Chamber

This chamber is where the sample liquid is drawn into before

dropping into the final container. The rods inside are raised and

lowered to the sample volume desired.

5 Pinch Valve

This valve shuts during sampling, and then releases once desired

liquid has entered the chamber.

6 Breaker Switches

All samplers have an on/off switch. Other option for switch is for

fridge.

7 Discharge Tube

The sample liquid is released via the pinch valve to the sample

container(s) below. With composite (single container) units the

amount of built-up pressure may cause discharge tube to come

out of the container, so it is advisable to fasten it using the

provided lid.

8 Container Lid

The special lid provided fastens the discharge tube to the sample

container. Weight prevents tube dislocation.

9 Sample Container

The container that the sample is deposited into can be made from

a variety of materials, shapes, and sizes. Standard bottles are 2 or

5 gallon high density polyethylene (HDPE).

10 Instrumentation Section

All instrumentation and wiring, including pump, are located in

this section of the sampler, protected from outside elements.

11 Field Wiring Terminals

Terminal block for field wiring is located on the back of the

instrument tray

12 Refrigerator – Small Composite samplers have a smaller refrigerator by default.

13 Pressure Gauge

Optional pressure gauge is useful for monitoring

vacuum/pressure status, i.e. for checking plugged lines and

discovering leaks.

14 Stepper Motor and Bracket

Installed directly onto roof of refrigerator, this bracket is lined up

to deliver samples uniformly to multiple bottles. The stepper

moves the distributor arm after sampling the previous bottle.

15 Distributor Arm Stainless steel arm delivers liquid samples to the discrete bottles.

16 Discrete Bottles

Diagram shows 24 wedge bottle arrangement. Any arrangement

of bottles is possible that is factors of 24 and fits inside the

limited space (for example, 2 x 2 gallon containers).

17 Removable Bottle Tray

Some arrangements include a removable tray with handles for

easy swapping of bottles (24 bottle and 8 bottle options only).

18 Bottle Seating Template

With removable bottle tray, a circular guide and bolt lock holds

tray in its precise location. With other bottle arrangements, the

template includes seating guides for each bottle individually.

19 Refrigerator - Large

Discrete samplers have a large glass-door refrigerator with digital

thermostat display.

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Campbell-scientific CVS4200 / BVS4300 Stationary Samplers Manual de usuario Pagina 20

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