330105-xx-xx-10-02-05 Mod：157310-09 Bently Nevada Legacy 3300 XL 8mm Reverse-mount Proximity Probe
The Bently Nevada 330105-xx-xx-10-02-05 Mod 157310-09 is designed for enclosed rotating machinery with blind or restricted internal access, featuring a unique reverse-mount design that allows external air-gap adjustments without equipment disassembly. Coupled with the Mod 157310-09 factory modification and multi-agency hazardous approvals (05 option), it solves critical customer pain points regarding restricted sensor installation, high chemical corrosion, and extreme temperature failures. This probe is the ideal solution for API 670-compliant, non-contact radial vibration and axial position monitoring on centrifugal compressors, steam turbines, and fluid-film bearing housings in hazardous oil, gas, and chemical environments.
Technical Specifications & Value Proposition
| Technical Parameter |
Specification / Value |
Value to the Buyer (Practical Impact) |
| Mounting Configuration |
Reverse-mount Design |
Value: Eliminates the need to dismantle the machine casing; maintenance crews can adjust or replace probes strictly from the outside, saving thousands in operational downtime. |
| Modification Code |
Mod 157310-09 |
Value: Guarantees plug-and-play mechanical fitment for specific critical OEM machinery, avoiding costly modifications or custom engineering field fees. |
| Hazardous Area Approval |
05 Option (ATEX/IECEx/CSA) |
Value: Provides immediate compliance sign-off for installation in explosive Zone 0/Class I Div 1 environments, reducing corporate insurance risks. |
| Tip Material |
Polyphenylene Sulfide (PPS) |
Value: Chemically inert to hot synthetic lubricants, ammonia, and aggressive process gasses, preventing tip degradation and structural sensor failure. |
| Temperature Range |
-52 °C to +177 °C |
Value: Ensures stable, drift-free machinery monitoring under extreme sub-zero arctic starts or scorching-hot high-pressure turbine exhausts. |
| Standard Scale Factor |
3.94 V/mm (100 mV/mil) |
Value: Delivers universal calibration with standard industry machinery protection monitors, cutting down on custom instrument setup times. |
| Connector Type |
ClickLoc Coaxial (02 Option) |
Value: Resists severe machine vibration disconnects without requiring specialized field-crimping tools, cutting installation labor costs. |
Frequently Asked Questions
Q: Can I replace a standard 3300 XL 8mm probe with this Mod 157310-09 reverse-mount version?
A: No, it is not a direct physical drop-in replacement for standard probes. The reverse-mount configuration installs from the outside of the machine housing into a threaded blind hole or specialized bracket, requiring specific housing clearances and internal access profiles designed around the Mod 157310-09 factory modification.
Q: What extension cable and Proximitor sensor must be used with this 1.0-meter probe?
A: This 1.0-meter probe (Option 10) must be paired exclusively with a 4.0-meter 3300 XL extension cable to achieve a standard 5.0-meter total system length. This combined 5-meter loop must connect to a matching 5.0-meter 3300 XL Proximitor Sensor to ensure the accurate 3.94 V/mm (100 mV/mil) scale factor calibration.
Q: Does the Mod 157310-09 modification affect the probe's hazardous area 05 safety approvals?
A: No, factory modifications designated by Bently Nevada do not invalidate the 05 multi-agency safety certifications. The modification covers mechanical, thread, or target calibration tweaks, meaning the probe remains fully certified under ATEX, IECEx, and CSA guidelines for explosion-proof and intrinsically safe industrial zones.
Project Case: Critical Turbo-Compressor Monitoring
Location: Cilegon, Indonesia
Deployment Date: August 2025
Asset Monitored: High-pressure centrifugal process gas compressor (Fluid-film bearings)
Operating Conditions: Tropical coastal climate, 92% average relative humidity, ambient temperatures up to 41°C (106°F)
The Challenge (Customer Pain Points)
The plant operated an aging compressor where the original internal vibration sensors were prone to drift due to extreme moisture ingress. Because the machine casing featured a double-walled, enclosed blind-hole design, standard front-loading probes could not be adjusted or calibrated without executing a complete, multi-day machinery teardown. This structural layout led to unscheduled operational bottlenecks and massive revenue losses during maintenance cycles.
The Engineering Solution
Plant engineers deployed the Bently Nevada 330105-xx-xx-10-02-05 Mod 157310-09 to exploit its unique reverse-mount mechanical housing. The probe was threaded directly into the bearing housing from the outside of the machine shell, allowing technicians to mechanically zero out and lock down the sensor air-gap externally. The specialized Mod 157310-09 parameters ensured a precise fit within the OEM's non-standard internal mounting clearances.
Measurable Business Outcomes
- Zero Moisture Failures: The PPS tip material and ClickLoc sealed connectors blocked all ambient tropical humidity, resulting in zero sensor failures or signal degradation since commissioning.
- 94% Maintenance Time Reduction: Air-gap verification and loop check times dropped from a 3-day machine teardown to a simple 40-minute external instrumentation adjustment.
- API 670 Safety Compliance: The 05 multi-agency safety approval seamlessly met the facility's strict Zone 1 explosion-proof hazardous area insurance mandates.
Our Leading Advantage Brands
Bently Nevada: 3500 Systems, Proximitor sensors, and 3300 XL probes
Honeywell: Experion PKS, TDC 3000, and FSC safety systems
ABB: 800xA, Symphony Plus, and Bailey INFI 90 DCS
Allen-Bradley: ControlLogix 1756 and legacy SLC 500 modules
GE Vernova: Mark VI/VIe Speedtronic turbine control cards
Triconex: Invensys/Schneider TMR emergency shutdown systems
The Amikon Benefit: 100% Original | Factory Sealed | Lowest Lead Times
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