Campbell Scientific CVS4200 / BVS4300 Stationary Samplers - Manual (Page 18)

CVS4200 / BVS4300 Stationary Samplers
TABLE 5-1. BVS4300 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.
3 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 Instrument Tray Rollers Control section of sampler can be easily rolled out for wiring and
maintenance.
7 Breaker Switches All samplers have an on/off switch. Other options for switches
include fridge and heater.
8 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.
9 Container Lid The special lid provided fastens the discharge tube to the sample
container. Weight prevents tube dislocation.
10 Sample Container(s) The container(s) that the sample is deposited in can be made
from a variety of materials, shapes, and sizes. In discrete
samplers, there is a distributor arm that deposits samples into
multiple containers.
11 Cabinet Circulation Fan Optional fan for hot weather climates, prolongs the life of
refrigerator. If no fan is present, this space will be solid.
12 Louvers Vents for ensuring proper ventilation in cabinet.
13 Pump Exhaust Connection If the sample fluid is corrosive, the pump exhaust air can be sent
to a separate location through this connector; unnecessary in
most conditions.
14 Instrument Air Connection In corrosive environments, instrument air can be brought in from
another source, prolonging the life of the instrumentation
components. Tubing would be hooked up to the provided
adapter. This is unnecessary in most environments.
15 Instrument Panel Instrumentation is mounted on this panel.
16 Instrumentation Section All instrumentation and wiring, including pump, are located in
this section of the sampler, protected from outside elements.
17 Field Wiring Terminals Terminal block for field wiring is located on the back of the
instrument tray
18 Instrument Tray This tray can be rolled out by unscrewing the four bolts at the top
of the panel, and gliding it out on the rollers.
19 Enclosure Cabinet for entire sampler is powder-coated steel or optional
stainless steel.
20 Mounting Feet Brackets have holes for screwing sampler into a fixed location.
21 Installation Holes Put bolts through these holes into a solid surface to stabilize
sampler.
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