Campbell-scientific CVS4200 / BVS4300 Stationary Samplers Manual de usuario descargar pdf (Pagina 22)

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-3. Vacuum System Component Descriptions

Number Item Description

1 Solenoid Valves Control the air flow from pump to sampler, either purging or

sucking.

2 Pump Located behind a sheet of metal, the pump does not come into

contact with any liquid whatsoever. It does all the drawing and

purging through using a vacuum and compressor.

3 Touchpad Controller Controls sampler program and offers status feedback on LCD.

4 Sample Distributor Rotates distributor arm between multiple discrete containers.

5 Distributor Arm Dispenses liquid from metering chamber into discrete container.

6 Discrete Sample Containers Multiple containers. Any arrangement of bottles is possible that

is factors of 24 and fits inside the 5 ft

refrigeration unit.

7 Pressure Gauge Visually describes sampling process in terms of

vacuum/pressure. Useful for troubleshooting a plugged/kinked

line, or signals leaks. Optional.

8 Liquid Sensing Rod This rod must remain above the volume control tube. When the

sample liquid comes into contact with the two rods, it signals

the controller to stop sampling and begin purging.

9 Barrier Valve Prevents metering chamber overflow in case the liquid sensing

rod fails (for example, completely coated with oils/grease).

10 Volume Control Tube Mechanically set the volume required for sample by using a

wrench on the fitting at the base of this stainless steel tube.

11 Metering Chamber Sample is drawn into chamber up to level set by volume control

tube, then line is purged, followed by dropping sample into

containers. Metering Chambers come in glass or acrylic, from

250 cc to 1,000 cc.

12 Pinch Valve This valve shuts during sampling, then opens during sampling to

drop sample into container, then closes to purge hose.

13 Cap with “Container Full” Shut-

off

Optional cap contains Overflow Protection Probes which signal

the sampler to halt when container is full. Can be installed in

maximum two containers, or into a discrete bottle tray.

14 Composite Sample Container A single container to hold sample liquid. Can be used with

smaller refrigerator.

15 Intake Hose Standard samplers come with 7.6 m (25 ft) of 3/8 inch ID PVC

tube.

16 Sinker. Optional Strainer. Keeps the end of the intake tube in the source liquid. Optional

strainer can raise collection point above sinker.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 91 92

Sin comentarios

Campbell-scientific CVS4200 / BVS4300 Stationary Samplers Manual de usuario Pagina 22