Overview
Manuals
Environmental Limits
Critical Instrumentation Safeguard
Features:
- 990 Vibration Transmitter
- Integrated Proximitor Sensor requires no external unit
- Test Input pin for quick verification of loop signal output, using a function generator as the input
The Model 990 vibration transmitter is primarily targeted at original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors or fans who want to provide a simple 4 to 20 mA proportional vibration signal as input to their mechanical control systems.
The transmitter is a two-wire, loop-powered device that accepts input from our 3300 NSv proximity probe and its matching extension cable (available in 5 m and 7 m system length options).
The 990-10-50-03-00 Bently Nevada 990 Vibration Transmitter may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 990-10-50-03-00 990 Vibration Transmitter Manuals(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Transmitter Temperature
Operating temperature
-35°C to +85°C (-31°F to +185°F)
Storage temperature
-52°C to +100°C (-62°F to +212°F).
The PROX OUT dynamic diagnostic signal shares a ground terminal with the 4-20 mA power supply loop. If you plan to connect AC or mains diagnostic test equipment to the coaxial port, you must use the Bently Nevada 990/991 test adapter (part number: 122115-01) to transmit the signal. Connecting unisolated AC test equipment directly to the transmitter will cause a short circuit in the current loop, which may result in control system tripping or module logic damage.
