Description
Product Core Brief
- Model: 330780-50-00
- Brand: BENTLY NEVADA
- Series: 3300 XL 11 mm
- Core Function: Conditions 11mm eddy current signals for vibration and displacement monitoring.
- Product Type: Proximity Transducer (Proximitor)
- Key Specs: 5.0 m System Length | Panel Mount | 3.94 V/mm Sensitivity
- Condition: New Original (New Surplus)
Product Introduction
The BENTLY 330780-50-00 is a 5.0 m system length Proximitor for the 3300 XL 11 mm sensor family. It converts raw signals from 11 mm eddy current probes into buffered voltage and current outputs for monitoring systems.
Designed to replace older 7200 series 11 mm and 14 mm systems, this unit features enhanced RFI/EMI immunity. It supports panel mounting and requires no individual component matching within the 3300 XL 11 mm ecosystem.
Key Technical Specifications
| Parameter | Value |
|---|---|
| System Length | 5.0 m (16.4 ft) |
| Sensitivity | 3.94 V/mm (100 mV/mil) |
| Linear Range | 4.0 mm (157 mils) |
| Frequency Response | 0 to 8 kHz |
| Supply Voltage | -17.5 to -26 Vdc |
| Max Current | 12 mA |
| Output | Buffered DC + Raw AC |
| Mounting | Panel Mount (4-hole) |
| Operating Temp | 0°C to +45°C (Proximitor) |
| Compliance | API 670, ISO 10817-1 |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.
BENTLY 330780-50-00
Replacement Pitfall Guide
❗ System Length Mismatch: The electrical length of the probe plus extension cable must equal the Proximitor’s rating. A 5.0 m Proximitor requires a total sensor system length of exactly 5.0 m.
❗ Mounting Hardware Confusion: The -50 suffix indicates panel mount. If you require DIN rail mounting, you must order the -51 variant (e.g., 330780-51-00). They are not mechanically interchangeable.
❗ System Size Confusion: This is an 11 mm Proximitor. Do not use it with 8 mm probes (330180 series), as the sensitivity and linear range are incompatible.
❗ Cable Termination Issues: Always verify shield grounding at the third terminal block. Improper grounding here is the #1 cause of 60 Hz hum in vibration data.
❗ Power Supply Sag: Calculate total rack power with 20% headroom. Multiple Proximitors on a single supply can cause voltage droop during transient events.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- 330780-50-00 → 330780-51-00 : Needs Adaptation — Panel vs. DIN rail mount
- 330780-50-00 → 330780-90-00 : Incompatible — 5.0 m vs. 9.0 m system length
- 330780-50-00 → 330180-50-00 : Incompatible — 11 mm vs 8 mm system
- 330780-50-00 → 330780-50-05 : Direct — same specs, added agency approvals
- Output Linearity: < 1% over 157 mil range
- Noise Floor: < 2.0 mV RMS at max gain
