Sensortechnics, Inc.

HYD Submersible Pressure Transmitter
The HYD submersible pressure transmitter offers highprecision hydrostatic level measurement for pressures from 3.3 ft w.c. (1.5 psi). It features a compact stainlesssteel housing with a flushmounted laser-welded diaphragm suitable for use with viscous media. The temperature-compensated transmitter has a special cable with an integrated vent tube that provides a true reference pressure to the sensor element, eliminating errors due to barometric pressure changes. The unit provides a 4–20-mA output signal, and achieves an excellent long-term stability of  <± 0.1%FSS/yr.

Miniature Optical liquid level Switches
These miniature optical liquid level switches reliably detect the presence or absence of liquid using solid-state technology. They are also available as basic switches, microprocessor-compatible TTL-output devices and high-power transistor output versions capable of switching currents up to 800 mA. These switches offer different housing options, including cost-effective plastic polysulfone and rugged stainless steel versions for corrosive environments. The sensors provide excellent media compatibility and are suitable for a wide range of applications, such as those found in food, beverage and pharmaceutical processing.