Product Introduction
When vibration monitoring systems face extreme temperature swings or pressure differentials, the Bently Nevada 330195-02-12-05-00 3300 XL 8 mm Proximity Probe, Reverse Mount delivers consistent performance. This probe seals differential pressure between the tip and case using a Viton® O-ring, preventing common failure modes in harsh environments. Designed for reverse mounting, it integrates seamlessly into turbine, compressor, and pump protection systems.
Technical Specifications Breakdown
| Parameter |
Value |
| Total Length |
0.5 metre (1.6 feet) |
| Nominal Probe DC Resistance (RPROBE) |
7.45 ± 0.50 Ω at 0.5 m |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel (SST) |
| Probe Case Thread |
3/8-24 UNF; max thread engagement 0.563 in |
| Humidity Effect |
Less than 3% change in ASF at 93% RH per IEC 68-2-3 for up to 56 days |
| Standard Temperature Range |
-52°C to +177°C (-62°F to +350°F) |
| Extended Temperature Range (tip) |
-52°C to +218°C (-62°F to +425°F) |
| Extended Temperature Range (cable) |
-51°C to +260°C (-60°F to +500°F) |
These specifications ensure the Bently Nevada 330195-02-12-05-00 maintains accuracy under demanding conditions. The low resistance variation guarantees consistent signal output for proximity measurements.
Industry Applications
The Bently Nevada 330195-02-12-05-00 is ideal for monitoring shaft vibration and axial position in rotating machinery. In steam turbines, it detects early imbalance to prevent catastrophic failure. For centrifugal compressors, its reverse mount configuration simplifies installation in confined spaces. In large pumps, the probe's wide temperature range accommodates hot process fluids. By addressing common failure points like seal degradation and thermal drift, this probe enhances asset reliability.
Installation and Setup Guidance
Mount the 330195-02-12-05-00 with the 3/8-24 UNF thread into a properly tapped hole. Ensure maximum thread engagement does not exceed 0.563 inches to avoid damaging the probe. Do not expose the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Verify the total length of 0.5 metre (1.6 feet) matches your installation distance. No agency approval is required for standard applications.
Maintenance and Reliability
Routine inspection of the Bently Nevada 330195-02-12-05-00 focuses on the pressure seal and cable integrity. The probe's Viton® O-ring maintains sealing under differential pressure, but periodic checks for leakage are recommended. Humidity exposure up to 93% RH causes less than 3% change in Average Scale Factor, providing long-term measurement stability. To maximize service life, avoid repeated thermal cycling below -34°C. The stainless steel case resists corrosion in industrial atmospheres.
Selection Guide and Purchasing Advice
When selecting the 330195-02-12-05-00, confirm your system requires a reverse mount probe with 0.5 metre cable length. This model does not include agency approval, so verify if local regulations demand certification. For reliable sourcing and expert support, choose PLC Source PRO as your supplier. We stock genuine Bently Nevada components to ensure compatibility with your existing 3300 XL monitoring system.