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Isco 4700 Refrigerated Sampler
Section 5 Maintenance
Figure 5-3
Wetted Parts
5.1.6 Sampler Cleaning
Guidelines
5.2 Sampler Diagnostics
5-6
A
A.
Strainer (316 stainless steel,
polypropylene, or CPVC)
B.
Suction Line (vinyl)
C.
Tubing Connector (316 stain-
less steel)
D.
Pump Tube (silicone)
Keeping the sampler clean and protected from harsh elements
may extend the usable life of the sampler. When necessary, clean
the exterior and interior of the sampler with warm soapy water
and brush, then rinse with water. Be sure to use a detergent that
is compatible with low-density polyethylene and polystyrene.
Avoid using strong solvents and acids.
The sampler has built in diagnostics routines that trained
service technicians use to confirm that all sampler subsystems
are working correctly or to locate faults. Many of the diagnostic
routines also can be run in the field.
In many cases the sampler will determine if the test passes or
fails.
• If a test passes, the sampler displays a message showing
the test passed and emits a short beep.
• If a test fails, the sampler displays a message with some
detail about the failure. The unit will emit a wavering
tone for five seconds.
In a few cases the service technician must determine if the test
passed or failed based on a sampler function that must be
observed.
C
E
B
G
E.
Bulkhead Fitting (316 stain-
less steel)
F.
Discharge Tube (silicone)
G.
Bottle (glass, polypropylene,
or polyethylene)
D
F
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