Overview
The Bently Nevada 3300/20-13-02-01-00-00 Dual Thrust Position Monitor continuously measures two independent shaft axial positions relative to axial clearances. Designed for early detection of thrust bearing failures, it supports direct monitoring of the thrust collar, providing highly accurate feedback to safeguard machinery.
Key Features
- Dual Independent Channels: Monitors two separate axial positions for precise thrust bearing clearance measurement.
- Early Fault Detection: Detects potential thrust bearing issues before catastrophic failure occurs.
- User-Programmable Sensitivity: 200 mV/mil (8 V/mm) or 100 mV/mil (4 V/mm) for flexible configuration.
- Versatile Outputs: Multiple recorder outputs including +4 to +20 mA, 0 to -10 Vdc, and +1 to +5 Vdc, with short-circuit protection.
- Alarm Functions: Alert and Danger alarms, bi-directional, digitally adjustable from 0% to 100% of full scale.
- Display and Indicators: Vertical bargraph LCD with ±1.6% resolution, OK, Alarm, and Bypass LEDs for quick status checking.
Technical Specifications
| Specification | Details |
|---|---|
| Input Signal | 1 or 2 proximity probe inputs |
| Input Impedance | 10 kΩ |
| Accuracy | Typical ±0.33% FS, Maximum ±1% FS (@25°C) |
| Recorder Outputs | +4–20 mA, 0–10 Vdc, +1–5 Vdc (user-programmable) |
| Output Impedance | 100 Ω (voltage outputs) |
| Transducer Supply Voltage | -24 Vdc or -18 Vdc, current-limited |
| Power Consumption | 1.5 W nominal |
| Alarm Resolution | ±1.6% FS, repeatability ±0.39% FS |
| Operating Temp | 0°C to +65°C (+32°F to +150°F) |
| Storage Temp | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | Up to 95%, non-condensing |
| Weight | 1 kg (2.2 lbs) |
| Rack Space | Occupies 1 position (except positions 1 & 2 reserved for power supply/system monitor) |
Certifications & Compliance
- CSA/NRTL/C: Class I, Div 2, Groups A–D, T4 @ Ta +65°C
- ATEX: II 3 G, EEx nC[L] IIC T4 @ Ta -20°C to +60°C
- CE Mark: EMC & Low Voltage Directives
Ordering Information
- Model Number: 3300/20-AXX-BXX-CXX-DXX-EXX
- Part Number: 3300/20-13-02-01-00-00
- Options:
- A (Full-scale Range): 13 → ±2.0 mm
- B (Transducer Input): 02 → 7200 11 mm Proximitor System
- C (Alarm Relay): 01 → Epoxy-sealed
- D (Agency Approval): 00 → Not required
- E (Safety Barrier): 00 → None
Applications
- Thrust bearing monitoring in industrial rotating machinery
- Machinery protection systems requiring dual-channel axial monitoring
- Continuous condition monitoring and predictive maintenance
Details
| Weight | 1 kg |
|---|
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