990-05-50-02-01 | Bently Nevada 2-Wire Loop-Powered Vibration Sensor
Manufacturer: Bently Nevada
-
Part Number: 990-05-50-02-01
Condition：New with Original Package
Product Type: 2-Wire Loop-Powered Vibration Sensor
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Bently Nevada 990-05-50-02-01 is a two-wire, loop-powered vibration transmitter for industrial machinery. It converts vibration signals from a 3300 NSv proximity probe into a proportional 4–20 mA output, supporting real-time condition monitoring. This transmitter integrates easily with machinery control systems, enabling early fault detection for small pumps, motors, fans, and centrifugal air compressors. Its rugged design is suitable for both industrial and hazardous environments (Zone 2 / Div 2).
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Bently Nevada |
| Model | 990-05-50-02-01 |
| Function | Two-wire vibration transmitter |
| Input Sensor | 3300 NSv proximity probe (5-meter system) |
| Output Signal | 4–20 mA DC proportional to vibration amplitude |
| Power Supply | +12 to +35 VDC loop-powered |
| Loop Resistance | Up to 1,000 Ω at 35 VDC |
| Accuracy | ±1.5% over full-scale range |
| Probe Gap Range | 0.5 mm to 1.75 mm (20–55 mils) |
| Mounting Options | DIN rail or bulkhead mounting |
| Signal Defeat Circuit | Output drops below 3.6 mA during Not OK conditions |
| Startup Behavior | Output remains <3.6 mA for 2–3 seconds after power-up |
| Test Input | Allows loop signal verification via function generator |
| Environmental Rating | Designed for industrial and hazardous areas (Zone 2 / Div 2) |
| Operating Temperature | –35°C to +85°C |
| System Length Options | 5-meter standard; 7-meter optional |
| Applications | Small pumps, motors, fans, centrifugal air compressors |
| Condition | Brand New |
FAQ
Q1: What is the output type of the 990-05-50-02-01?
A1: It provides a 4–20 mA DC signal proportional to vibration amplitude.
Q2: Which sensor does this transmitter work with?
A2: It integrates with 3300 NSv proximity probes, available in 5- or 7-meter system lengths.
Q3: Can the transmitter operate in hazardous areas?
A3: Yes, it is suitable for Zone 2 / Div 2 environments.
Q4: How is the transmitter mounted?
A4: You can mount it on a DIN rail or bulkhead for secure installation.
Q5: How accurate is the 990-05-50-02-01?
A5: It maintains ±1.5% accuracy over the full-scale vibration range.
Q6: What is the startup behavior of the output?
A6: Output remains below 3.6 mA for 2–3 seconds after power-up.