Features and Benefits

 

• Integrated Proximitor* Sensor requires no external unit

• Non-isolated “PROX OUT" and "COM" terminals plus a coaxial connector

  to provide a dynamic vibration and gap voltage signal output

  for diagnostics.

• Non-interacting zero and span potentiometers under the Transmitter

  label supports loop adjustment.

• Test Input pin for quick verification of loop signal output, using a

  function generator as the input.

• A Power-up Inhibit circuit eliminates signal errors due to line

  voltage transients.

• A Not OK/Signal Defeat circuit prevents high outputs or false alarms

  due to a faulty proximity probe or loose connection.

• Choice of DIN-rail clips or bulkhead mounting screws as standard

  options simplifies mounting.

• Potted construction for high humidity

  (up to 100% condensing) environments.

• Compatibility with 3300 NSv proximity probe allows transducer

  installation in small areas with minimal clearance, typical of centrifugal

  air compressors.

The 991 transmitter provides the following notable features:

 

• Integrated Proximitor* Sensor requires no external unit

• Non-isolated “PROX OUT " and "COM" terminals plus a coaxial

  connector provide a dynamic vibration and gap voltage signal output

  for diagnostics.

• Non-interacting zero and span potentiometers under the Transmitter

  label supports loop adjustment.

• Test Input pin allows quick verification of loop signal output, using a

  variable DC voltage source as the input.

• A Power-up Inhibit circuit eliminates signal errors due to line

  voltage transients.

• A Not OK/Signal Defeat circuit prevents high outputs or false alarms

  due to a faulty proximity probe or loose connection.

• Choice of DIN-rail clips or bulkhead mounting screws as standard

  options simplifies mounting.

• Potted construction for high humidity

  (up to 100% condensing) environments.

• Compatibility with 3300 NSv proximity probe allows transducer

  installation in small areas with minimal clearance, typical of centrifugal

  air compressors.