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GENERAL DESCRIPTION

This product is a sealed plastic stick containing three DS1921G iButtons?. The iButtons are connected in parallel through metal plates that are spot-welded to the IO and GND contact, respectively. Two stranded wires protruding from the top end of the stick allow for a 1-Wire? reader/write to make contact to the iButtons for setup and data retrieval. Electrically, the product is specified by the DS1921G data sheet, with the proper scaling (e.g., current ×3, capacitance ×3). The mechanical and thermal characteristics of the module are specified in this document.

FEATURES

■ Three DS1921G networked to monitor temperate at the top, bottom and center of the stick

■ Connects to 1-Wire reader/writer through colorcoded 18 AWG (1 mm ?) stranded wires with ? inch (1.3 cm) stripped ends

■ Electrically compatible to the DS1921G Thermochron iButton (3 in parallel)

■ Sealed against liquid intrusion

■ Module position information stored in DS1921G memory

APPLICATIONS

??? Concrete Maturity Monitoring