Bently Nevada 990 Vibration Transmitter 990-05-50-01-00
   
  Description
   
  The 990 Vibration Transmitter is intended primarily for the original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors, or fans who prefer to provide a simple 4 to 20 mA proportional vibration signal as the input to their machinery control system.
   
  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 systemlength options).
   
  The transmitter conditions the signal into appropriate peak to-peak vibration amplitude engineering units, and provides this value as a proportional 4 to 20 mA industry-standard signal as the input to the control system where machinery protection alarming and logic occurs†.
   
  The 990 transmitter provides the following notable features:
   
  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‡.
   
  lNon-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 Not OK/Signal Defeat circuit prevents high outputs or false alarms due to a faulty proximity probe or loose connectio
   
   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.
   
   Ordering Information
  990-AA-BB-CC-DD
   
   	 		 		 	 	 		 			|  			 A: Full-scale Option  			 |  		
 		 			|  			 04  			 |  			 			 0-4 mils pp (0-100 μm pp)  			 |  		
 		 			|  			 05  			 |  			 			 0-5 mils pp (0-125 μm pp)  			 |  		
 		 			|  			 B: System Length Option  			 |  		
 		 			|  			 50  			 |  			 			 5.0 metres (16.4 feet)  			 |  		
 		 			|  			 70  			 |  			 			 7.0 metres (23.0 feet)  			 |  		
 		 			|  			 C: Mounting Option  			 |  		
 		 			|  			 01  			 |  			 			 35 mm DIN rail clips  			 |  		
 		 			|  			 02  			 |  			 			 Bulkhead screws  			 |  		
 		 			|  			 03  			 |  			 			 DIN clips and screws  			 |  		
 		 			|  			 D:Agency Approval Option  			 |  		
 		 			|  			 00  			 |  			 			 Not required  			 |  		
 		 			|  			 01  			 |  			 			 CSA Division 2  			 |  		
 		 			|  			 05  			 |  			 			 CSA Division 2, ATEX Zone 0, ATEX  			 |  		
 		 			|  			 Zone 2 and includes ABS  			 |  		
 		 			|  			 maritime approval  			 |  		
 	 
   
   
  Related Part Number:
   
   	 		 		 	 	 		 			| 990-08-XX-03-CN MOD:167541-08 |  			990-10-XX-01-00 MOD:163930-01 |  		
 		 			| 990-04-XX-01-00 MOD: 165335-01 |  			990-05-XX-03-CN MOD:165335-01 |  		
 		 			| 990-08-XX-01-00 MOD: 283278-01 |  			990-04-70-01-CN |  		
 		 			| 990-05-70-01-CN |  			990-10-XX-02-00 MOD: 163930-0 |  		
 		 			| 990-04-XX-01-CN MOD:147202-01 |  			990-10-XX-01-CN MOD:285269-01 |  		
 		 			| 990-04-XX-01-CN MOD: 165335-01 |  			990-05-XX-01-00 MOD:147202-01 |  		
 		 			| 990-05-50-01-CN |  			990-05-XX-01-00 MOD 289549-01 |  		
 		 			| 990-05-XX-01-CN MOD:168251-01 |  			990-05-XX-01-00 MOD:165335-01 |  		
 		 			| 990-05-50-02-00 |  			990-10-XX-01-CN MOD:167541-01 |  		
 		 			| 990-05-50-01-00 |  			990-05-XX-01-CN MOD:147202-01 |  		
 		 			| 990-05-70-03-00 |  			990-05-50-03-CN |  		
 		 			| 990-05-70-03-CN |  			990-04-50-01-CN |  		
 		 			| 990-04-50-02-00 |  			990-05-70-01-00 |  		
 	 
   
   
  