Campbell Scientific PVS4100/4120/4150 Portable Automatic Samplers - Manual (Page 28)

Section 2. Installation
2-2
2.2 Intake Hose
Ensure the intake hose is submerged at all times throughout different flow
velocities.
Twenty-five feet of intake hose is provided with the
sampler. Shortening the hose is not recommended since
this length of hose provides sufficient back pressure to the
metering chamber, allowing the pump to efficiently expel all
solids into the sampler container. Coil any excess intake
hose in a manner to provide natural drainage away from
the sampler. To install intake hose, heat the end in hot
water and slip over volume control tube. Secure with hose
clamp provided.
Sample line should be routed so that it has a near continuous slope from the
sampler to the source liquid. This will help keep the sample line cleared and
fully drained. All excess line should be coiled neatly and without any vertical
loops.
2.3 Sinker / Strainer
Sinker or sinker/strainer is intended to keep sample line fully submerged in the
source liquid. A sinker/strainer should be used in situations with material that
clogs up a normal sinker, or where the standard sinker could stir up bottom
sediment.
Lead Sinker: SAM-23-28-01 Stainless Steel Sinker/Strainer: SAM-23-28-11
2.4 Storage
If the sampler is not to be used for an extended period of time, store the unit in
an upright position in a warm, dry location. If the unit has an integral battery,
recharge the unit prior to storage.
Acceptable storage temperature: -30ºC to +60ºC (-22ºF to +140ºF)
CAUTION