Two-Wire Gas Monitors features 2-wire 4-20mA loop powered, 4-20mA transmits 3mA ″In Cal″ signal during calibrations & 2mA during FAULT conditions, front panel flashing alarm LED indicators, large graphic LCD displays value and ″Power-Up″ & ″Post Cal″ delay modes lock output at 4mA to allow sensor stabilization and prevent erroneous alarm trips.
Two-wire non-contact ultrasonic transmitter is a two-wire, loop-powered non-contact transmitter for liquid level, volume, and open channel flow measurement. It provides exceptional measurement performance in a wide variety of applications. Ultrasonic pulses are emitted from the transducer and the time required for the echo to reflect from the liquid surface and return to the transducer is measured. It is used in sumps; wells, tanks and open channel flow in weirs and flumes applications.