Campbell Scientific PVS4100/4120/4150 Portable Automatic Samplers - Manual (Page 23)

Section 1. Product Overview
1-15
Composite Sampling is for drawing water samples into one large container.
This is the simplest way of taking samples and typical for most situations
where a sampler is set up to measure effluent in one location. It is also
significantly less expensive than discrete sampling.
1.3.8 Sample Transport Velocity
TABLE 1-11. Vertical Velocity
0’ 5’ 10’ 15’ 18’ 20’ 22’ 25’ 27’ 28’ Height
3/8” ID Large pump
(BVS 4300, CVS 4200, PVS4100)
7.1 7.1 6.0 5 4.4 4.1 3.6 3 2.6 0 Ft/sec
3/8" ID Small pump
(PVS4120, PVS4150)
5.1 4.7 3.6 2.7 1.6 0
5/8" ID Large pump 5 4.6 3.9 3.1 2.7 1.8 0