中文版
GE Bently Nevada offers a wide variety of vibration and thrust transmitters, each designed to handle the rigors of industrial environments, and many capable of being installed in hazardous areas when appropriate methods are used.
The 990 Vibration transmitter is primarily targeted at Original equipment manufacturers (Oems) with centrifugal air compressors or small pumps, motors or fans who prefer to provide simple 4 to 20 mA proportional vibration signals as input to their mechanical control systems.
991 thrust transmitters are targeted primarily at Original equipment manufacturers (Oems) with centrifugal air compressors or small pumps, motors or fans who prefer to provide simple 4 to 20 mA proportional axial displacement (thrust) signals as input control systems for their machines.
Characteristics and advantages
990 vibration transmitter features include:
Integrated preprocessor * Sensor requires no external device
Non-isolated “PROX OUT” and “COM” terminals plus coaxial connectors provide dynamic vibration and gap voltage signal output for diagnostics.
Transmitter label under non-interactive zeroing and range potentiometer support loop adjustment.
Test input pins for quick verification of loop signal output, using a function generator as input.
The power-on suppression circuit eliminates signal errors due to line voltage transients.
The Not OK/Signal Defeat circuit prevents high output or false positives due to faulty proximity probes or loose connections.
Installation is simplified by selecting DIN rail clips or partition mounting screws as standard options.
Suitable for potting structures in high humidity (up to 100% condensation) environments.
The compatibility with the 3300 NSv proximity probe allows the sensor to be installed in small areas with minimal clearance, typical of centrifugal air compressors.
991 transmitter has the following remarkable characteristics:
Integrated preprocessor * Sensor requires no external device
Non-isolated “PROX OUT” and “COM” terminals plus a coaxial connector provide dynamic vibration and gap voltage signal output for diagnostic purposes.
Transmitter label under non-interactive zeroing and range potentiometer support loop adjustment.
The test input pin allows rapid verification of loop signal output using a variable DC voltage source as input.
The power-on suppression circuit eliminates signal errors due to line voltage transients.
The Not OK/Signal Defeat circuit prevents high output or false positives due to faulty proximity probes or loose connections.
Installation is simplified by selecting DIN rail clips or partition mounting screws as standard options.
Suitable for potting structures in high humidity (up to 100% condensation) environments.
The compatibility with the 3300 NSv proximity probe allows the sensor to be installed in small areas with minimal clearance, typical of centrifugal air compressors.
