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 system length options).
The transmitter conditions the signal into appropriate peakto-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.
-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: Full-scale Option
04 0-4 mils pp (0-100 μm pp)
05 0-5 mils pp (0-125 μm pp)
08 0-8 mils pp (0-200 μm pp)
10 0-10 mils pp (0-250 μm pp)
B: System Length Option
50 5.0 meters (16.4 feet)
70 7.0 meters (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
