automatic sampler in a sentence

1. Standard guide for sampling wastewater with automatic samplers
2. Petroleum liquids - automatic pipeline sampling - statistical assessment of performance of automatic samplers determining the water content in hydrocarbon liquids
3. From the error resource , this paper emphatically analyzes the cause that the metering error produces in the process of crude oil metering with this flowmeter , and discusses the necessity of insulating the prover , installing the automatic sampler and automatic water cut analyzer
4. It's difficult to find automatic sampler in a sentence.