Description
Product Core Brief
- Model: 330704-00-50-10-01-CN
- Brand: BENTLY NEVADA
- Series: 3300 XL 11 mm
- Core Function: Captures dynamic shaft vibration and static displacement.
- Product Type: Eddy Current Proximity Probe
- Key Specs: 11 mm Tip | M14x1.5 Thread | Armored Construction
- Condition: New Original (New Surplus)
BENTLY 330704-00-50-10-01-CN
Product Introduction
The BENTLY 330704-00-50-10-01-CN is an 11 mm armored eddy current proximity probe designed for continuous machinery monitoring. It reliably detects shaft vibration and displacement parameters in harsh industrial environments.
This sensor strictly complies with API 670 standards and offers full interchangeability within the 3300 XL system. No individual matching or bench calibration is required for the probe, extension cable, or proximitors.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Probe Tip Diameter | 11 mm (0.433 in) |
| Mounting Thread | M14 x 1.5 |
| Cable Construction | Armored, High-Temp |
| 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 |
| Operating Temp | -52°C to +177°C |
| Certification | CN (China Regional Approval) |
| 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.
Replacement Pitfall Guide
❗ System Size Confusion: The 330704 is an 11 mm probe. Do not substitute it with an 8 mm probe (e.g., 330104 series), as the linear range and sensitivity will be completely wrong for your monitor module.
❗ Thread Mismatch: This probe uses an M14x1.5 metric thread. Ensure your existing bracket or housing matches, as 11 mm probes also come in 1/2-20 UNF or 5/8-18 UNF imperial threads.
❗ Extension Cable Length: The total electrical length of the probe plus extension cable must exactly match the proximitors rating (e.g., 5.0 m or 9.0 m). Verify this before ordering.
❗ 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.
BENTLY 330704-00-50-10-01-CN
Compatibility Matrix & Benchmarks
- 330704-00-50-10-01-CN → 330704-00-50-10-02-00 : Direct — same probe, different connector/cable jacket option
- 330704-00-50-10-01-CN → 330703-00-50-10-02-00 : Needs Adaptation — Non-armored vs. Armored construction
- 330704-00-50-10-01-CN → 330104-00-50-10-02-00 : Incompatible — 11 mm vs 8 mm tip diameter
- Scan Cycle: < 1 ms (simulated load, 8 I/O points)
- Comms Throughput: 100 Mbps (Modbus TCP/IP)
