Product Core Brief
- Model: 330980-51-RU
- Brand: Bently Nevada
- Series: 3300 XL 8mm
- Core Function: Conditions eddy current probe signals for monitoring systems.
- Product Type: Proximitor Signal Conditioner
- Key Specs: 8mm System | DIN Rail Mount | 5.0m System Length
- Condition: New Original / New Surplus
Bently Nevada 330180-51-CN
Product Introduction
The Bently 330980-51-RU acts as a critical signal conditioner for 3300 XL 8mm systems. This proximitor module translates raw probe impedance into precise analog voltage.
This industrial automation unit supports both dynamic vibration and static displacement measurements. It features a 5.0-meter total system length optimized for DIN rail installations.
Key Technical Specifications
| Parameter | Value |
|---|---|
| System Compatibility | 3300 XL 8mm |
| System Length | 5.0 Meters (16.4 ft) |
| Mounting Style | DIN Rail |
| Supply Voltage | -17.5 to -26 VDC |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Linear Range | 2 mm (80 mils) |
| Frequency Response | 0 to 10,000 Hz |
| Operating Temp | -52°C to +100°C |
| Compliance | API 670 |
| Output Signal | Analog Voltage |
Quality Control Process
Every replacement module undergoes strict electrical validation. We inject a simulated RF signal first to verify conditioning circuits. Output linearity must stay within ±2% tolerance. Next, we verify the -24 VDC supply regulation under load. Voltage ripple exceeding 50mV triggers rejection. We then perform thermal cycling at 100°C to confirm component stability. Finally, we inspect DIN rail clips for wear. All units ship in anti-static shielding.
Replacement Pitfall Guide
❗ Match the System Length. The “51” code dictates a 5.0-meter total system length. Swapping this for a 9.0-meter version changes capacitance. Your gap voltage will drift without recalibration.
❗ Set Gap Voltage Precisely. Target -10.0 VDC ± 0.2V during installation. A 0.5V offset causes significant amplitude errors at full scale. Do not guess this setting.
❗ Avoid Ground Loops. Ground the shield at the monitor chassis only. Double-grounding injects 60Hz hum into your vibration signal. Isolate the shield properly.
❗ Check Mounting Clearance. DIN rail mounting requires adequate airflow. Cramping this module against heat sources causes thermal drift. Allow 25mm clearance on all sides.
Keep these in mind and you’ll cut 90% of rework time.
Bently Nevada 330180-51-CN
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| 330980-51-RU | 330980-51-RU | Direct | Identical electrical specs |
| 330980-51-RU | 330980-91-RU | Needs Adaptation | 9.0m system length requires recalibration |
| 330980-51-RU | 330980-50-RU | Needs Adaptation | Panel mount variant, different hardware |
- Signal-to-Noise Ratio: >60 dB typical.
- Response Time: <10 µs step response.
