Switches • Level Switches • Vibrating Fork Level Switches

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  • Dwyer Instruments, Inc.

    Dwyer Instruments, Inc. offers Series TFLS tuning fork level switches for sensing a wide range of low dielectric or low bulk density materials, including sand, polyester chips, and gravel. These switches feature piezoelectric crystals, user-selectable/fail-safe contact operations, and factory built extensions for mounting on top of storage vessels. Switches have no required mechanical moving parts, no required calibration, no required routine maintenance, and they are unaffected by dielectric constants of the sensed materials.

  • Emerson Process Management

    Emerson Process Management offers Rosemount 2120 vibrating fork liquid level switches for the following applications: water ingress detection, vessel leak detection, hygienic, wireless, pipe installation, pump control, limit detection, high/low level arm, etc. These switches have process temperature ranges from -40 to 302°F, process pressures up to 1540 PSI, terminal block electrical connections, and IP66/67 to Type 4X ratings. They have fork lengths up to 118", easy termination access, no moving parts, and adjustable switching delays for splashing/turbulent applications.

  • Grainger Industrial Supply

    Grainger Industrial Supply offers tuning fork level switches. These SPDT switches have 1-1/2" male NPT process connections, probe lengths up to 19", 5A contact ratings, and NEMA 4X rated enclosures.

  • Flow Network

    Flow Network offers NWP plastic vibrating fork level switches for a variety of tough applications. These sensors feature NEMA 6 ratings, no wear components, reliable solid state designs, an all plastic construction, and tolerances for coatings, turbulence, and foaming. Sensors have temperature ranges from -40 to 194°F, maximum pressures up to 150 PSIG, field selectable N/C or N/O outputs, 400 Hz frequencies, and Ryton/polypropylene wetted parts.

  • Bulk Pro Systems, LLC

    Bulk Pro Systems, LLC offers Model TF tuning fork level switches for the following applications: wood chips, silica, chalk, dyes, detergent powders, light fibers, carbon black, sawdust, plastic granules, paper shavings, cement, etc. These switches feature time delays, normally open/closed fail-safe settings, LED status indications lights, and adjustable sensitivities. Switches have universal power supplies up to 265 VAC, vibrating fork designs down to 30 g/l, pressure limits up to 145 PSIG, and process temperature limits ranging from -4 to 176°F.