Bently Nevada 990-04-70-02-00 Vibration Transmitter

Item NO.:
990-04-70-02-00
Order(MOQ):
1 PC
Payment:
T/T
Product Origin:
USA
Shipping Port:
Xiamen
Lead Time：
In stock
Weight：
0.43 kg (0.9 lbm）
Warranty:
1 year

Product Detail

Bently Nevada 990-04-70-02-00 Vibration Transmitter
Description：
990-04-70-02-00 is Bently Nevada Vibration Transmitter. 990-04-70-02-00 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 2-wire, looppowered 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 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.
· 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 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.

Specifications
Unless otherwise noted, the following specifications apply at +22 C (+72 F) using a 3300 NSv Probe and Extension Cable, and an AISI 4140 steel target.

Note: These specifications also apply to 990 with modifications 147202-01 and 165335-01.

Ordering Information:
990-AXX-BXX-CXX-DXX
A: Full-scale Option
0 4 0-4 mils pp (0-100 μm pp)
0 5 0-5 mils pp (0-125 μm pp)
B: System Length Option
5 0 5.0 metres (16.4 feet)
7 0 7.0 metres (23.0 feet)
C: Mounting Option
0 1 35 mm DIN rail clips
0 2 Bulkhead screws
0 3 DIN clips and screws
D: Agency Approval Option
0 0 Not required
0 1 CSA Division 2

0 5 CSA Division 2, ATEX Zone 0, ATEX Zone 2 and includes ABS maritime approval

990-04-70-02-00