B08_ATCH_1_SALIENTS.pdf

This document is a Salient Characteristics specification sheet for a Portable Liquid Sampler to be used for water quality data collection at gaging stations located near lakes, rivers, and streams throughout the United States. The equipment must include an integrated controller and pump capable of supporting dual bottle configurations: 24 polypropylene bottles (1-liter each) and 24 glass bottles (350 ml each). The sampler shall be programmable to accommodate varying sample frequencies and volumes, feature a built-in SDI-12 interface with window, and include an adjustable air purge capability.

Technical requirements specify a minimum lift capability of 28 feet, an IP67 enclosure rating, at least 512KB of memory, and operation from external 12 VDC power. The equipment must include a liquid detection sensor, 3/8-inch tube intake, 3/8-inch tubing coupler, bottle retaining ring, and a minimum 6-foot-long cable for external 12 VDC power connection. These specifications establish the minimum performance and component standards required for the portable liquid sampling equipment.