Sampling Sequence
Sample collection begins with a high pressure air purge of the intake assembly to remove residual liquid and obstructions. The system then converts to a vacuum state, drawing the sample through the intake hose and into the metering chamber until contact is made with the adjustable level sensor. The system then pressurizes, ejecting excess fluid back through the intake line until the predetermined sample volume is achieved.
Automatic water samplers are designed either for composite or discrete sampling. Composite samplers take samples into one container. Discrete samplers and Multi-composite samplers take samples over a pre-determined period of time into up to twenty-four containers. |
