Monitor PZP cut sheet 563P-DV PZP-Cut Sheet

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Monitor PZP cut sheet 563P-DV PZP-Cut Sheet

DuraVibeTMModel PZP Vibratory Level Sensor

Features & Advantages

Exceptional Durability for powders and bulk solids

  • Patented steel gusset reinforced design provides industry-leading probe strength.
  • Stainless steel probe construction for durable, maintenance-free performance.

Excellent Versatility

  • Varying moisture, temperature, material composition? No problem!
  • Unaffected by dust clouds and agitation.
  • Detects very light (1.5 lb/ft3) to heavy, dense materials with proper protective baffling.
  • Pipe extension, cable extension and high-temp units are available.

Peace-of-mind Reliability

  • Self-cleaning diamond shape probe eliminates false signals found with “tuning fork” designs.
  • Fail safe feature provides alarm in case of a power failure.

“Set it and forget it”

  • No calibration required! Easy installation and commissioning.
  • Three sensitivity settings for optimum performance.
  • External status LED provides visual indication. (Ord. Loc. units only)

Superior third party approval compliance

  • Ordinary and Hazardous location approvals.
  • Intrinsically safe probe for ultimate hazardous location protection.

Principle of Operation

The Model PZP point level sensor is a mechanical resonance system that is excited at a resonance by an electrical circuit. Two
piezoelectric crystals are mounted internally at the probe’s base. The electronic module generates an electrical signal that has an
equivalent frequency to the probe’s resonant frequency; this signal is applied to one crystal, which causes the probe to vibrate. The
vibration is monitored by the second crystal which provides an electrical signal back to the electronic module. When material contacts
and surrounds the probe, the vibration is dampened and the signal from the second crystal is reduced. This signal reduction is
detected by the electronic module, which reacts by providing a signal out of the module through the relay contacts. The sensitivity for
the PZP is selectable. The single probe design prevents material bridging, which is common with the dual-blade (“tuning fork”) design.

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