Campbell PVS5120 Series, Инструкция по эксплуатации

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H-1
Appendix H. ISO5667 Conformity
The Campbell Scientific, Inc. Portable Vacuum Sampler 5120 (PVS5120)
complies with the relevant sections of the ISO 5667-10 standard applicable to
unrefrigerated portable water samplers. Individual statements from section
4.2.2 – Automatic Sampling Equipment are addressed below.
a. “Time-weighted composite samples”
Possible with the PVS5120C.
b. “Discrete samples taken at fixed intervals, held in individual
containers”
c. “Succession of short period composite samples being held in
individual containers”
Both of these are possible with the PVS5120D.
d. “Flow-weighted composite samples, i.e. taking variable volumes of
sample depending on stream flow for a fixed period of time”
This can NOT be done. The CSI sampler collects the same
volume every time it samples.
e. “Flow-weighted samples held in individual bottles”
PVS5120 can do this if a flow meter is connected to the sampler
or the datalogger. You would collect a sample every X volume of
water that passes the sampler. The sample will be the same
volume every time.
f. “Ability of the sampler to lift samples through the required height for
any chosen situation”
Pump Maximum lift in met re s at sea level (ft)
Standard 4.9 (16)
Large 8.2 (27)
These values are dependent on age of the pump, vacuum seals,
and battery condition. But for a new sampler/pump, the
standards should be met.
k. “The sampling line from intake point to sample delivery point should
have a minimum internal diameter of 9 mm to minimize clogging of
the uptake line.”
Both the PVS5120C and D have an intake tube with an inner
diameter of 9.5 mm (0.375 in). The volume control tube has an
inner diameter of 10.9 mm (0.430 in).