Product Overview
When process compressor applications demand reliable vibration monitoring, the Bently Nevada 330905-00-08-10-01-05 delivers precise measurement. This 3300 NSv proximity probe is part of the trusted 3300 series, engineered for eddy-current displacement sensing. It is mechanically and electrically compatible with previous 3300 RAM probes, allowing straightforward upgrades. The 330905-00-08-10-01-05 features increased chemical resistance, making it ideal for harsh environments. With a 1.0-meter total length and M10x1 thread, this probe offers a robust solution for your rotating machinery protection needs.
Key Features & Benefits
-
Interchangeable Design: Compatible with existing Bently Nevada 3300 RAM systems, minimizing retrofit costs.
-
Enhanced Chemical Resistance: Allows use in process compressor applications where standard probes may fail.
-
Superior Side-View Characteristics: Provides more accurate gapping compared to older 190 probes.
-
Multiple Approvals: Agency approval option -05 ensures compliance with various international standards.
-
Factory Packed: New and original in factory packing with 12-month warranty.
Technical Specifications
| Parameter |
Value |
| Model |
330905 - 3300 NSv Probe, M10X1 thread, without armor |
| Unthreaded Length |
00 mm |
| Overall Case Length |
80 mm |
| Total Length |
1.0 meter (39 in) |
| Connector Type |
Miniature coaxial ClickLoc with connector protector, standard cable |
| Agency Approval |
Multiple Approvals |
| Probe DC Resistance |
4.2 ± 0.5 ohms (for 1.0 m length) |
| Extension Cable DC Resistance |
Center conductor: 0.220 Ω/m (0.067 Ω/ft); Shield: 0.066 Ω/m (0.020 Ω/ft) |
| Extension Cable Capacitance |
69.9 pF/m (21.3 pF/ft) typical |
| Field Wiring |
0.2 to 1.5 mm² (16 to 24 AWG), three-conductor shielded triad recommended; max length 305 m (1000 ft) |
| Linear Range |
1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils) |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Incremental Scale Factor (ISF) |
7.87 V/mm (200 mV/mil) +12.5%/-20% |
| Deviation from Best Fit Straight Line (DSL) |
Less than ±0.06 mm (±2.3 mils) |
| Frequency Response |
0 to 10 kHz: +0, -3 dB typical |
| Target Size (Flat Target) |
Minimum 8.9 mm (0.35 in) diameter; recommended 13 mm (0.5 in) diameter |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Cable |
75 Ω coaxial, FEP insulated; lengths 0.5, 1, 5, or 7 meters |
| Recommended Torque |
Finger tight; maximum 0.56 N•m (5 in•lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Operating Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Storage Temperature |
-52°C to +177°C (-62°F to +351°F) |
| Probe Case Thread Torque (M10X1) |
Maximum rated 22.6 N•m (200 in•lb); recommended 7.5 N•m (66 in•lb) |
| Maximum Thread Engagement |
15 mm |
Industry Applications
The 330905-00-08-10-01-05 is specifically designed for vibration and position monitoring in rotating machinery. Its enhanced chemical resistance makes it particularly suitable for process compressors, where exposure to aggressive media is common. The probe's superior side-view characteristics ensure accurate gap measurements, which is critical for effective machine protection. Typical applications include:
- Centrifugal and reciprocating compressors
- Turbines and generators
- Pumps and fans
- Any rotating equipment requiring precise shaft displacement measurement
By ensuring reliable, real-time data, this probe helps prevent catastrophic failures and reduces downtime, directly contributing to operational efficiency.
Installation & Setup Guidance
Proper installation is essential for accurate readings. Follow these steps:
-
Mounting: Use the M10x1 thread to secure the probe into the machine housing. Tighten to the recommended torque of 7.5 N•m (66 in•lb) to avoid damage.
-
Gap Setting: Set the initial gap to 1.0 mm (40 mils) from the target surface. This ensures operation within the linear range.
-
Field Wiring: Use a three-conductor shielded triad cable with cross-section 0.2 to 1.5 mm² (16 to 24 AWG). Keep the cable length between the Proximitor Sensor and monitor to a maximum of 305 meters (1000 feet) to maintain signal integrity.
-
Connector: Attach the miniature coaxial ClickLoc connector securely. Avoid over-torquing the connector-to-connector interface.
Maintenance & Reliability
The 330905-00-08-10-01-05 is built for long service life, but routine checks are recommended. Inspect the probe cable for kinks or abrasion, especially where it exits the machine. Verify the connector integrity periodically. The probe's PPS tip and stainless steel case resist many chemicals, but avoid exposure to extreme conditions beyond the rated temperature range. Regular calibration checks against a known target can detect drift early, ensuring continued measurement accuracy. With proper care, this probe offers excellent reliability, minimizing unplanned maintenance and extending equipment life.
Selection Guide & Purchasing Advice
When ordering a replacement or spare probe, verify the part number 330905-00-08-10-01-05 matches your system requirements. Confirm the total length (1.0 m), thread type (M10x1), and connector option (ClickLoc) are compatible with your existing setup. This probe is designed to be interchangeable with prior 3300 RAM models, but always check compatibility with your Proximitor Sensor. PLC Source PRO offers genuine, factory-packed units with a 12-month warranty, ensuring you receive a reliable product backed by professional support.