Introduction

The primary function of the AM16/32B multiplexer (also known as a mux) is to increase the number of sensors that can be measured by CR6, CR3000, CR1000X, CR800-series, CR300-series, and CR1000 data loggers. The AM16/32B is positioned between the sensors and the data logger. Mechanical relays in the AM16/32B connect each of the sensor channels in turn to a common output to the data logger. The user program advances the multiplexer through the sensor channels, making measurements and storing data.

A slide switch located on the AM16/32B top panel selects one of two modes of operation. In 2x32 mode, the multiplexer adds 32 terminal pairs. In 4x16 mode, it adds 16 terminal groups with four terminals each. The data logger program is written according to the selected mode and the sensors to be measured.

The maximum number of sensors multiplexed by an AM16/32B depends primarily on the type(s) of sensors to be measured.

For more information on using a multiplexer, watch a video at www.campbellsci.com/videos/multiplexer .