The Bently Nevada 330851-02-000-070-90-00-05 is a non-contacting proximity probe belonging to the 3300 XL 25 mm Proximity Transducer System. Designed for differential expansion (DE) measurements on mid-size to large steam turbine generators, the probe observes target movement caused by growth rate differences between the turbine rotor and machine stator. It provides standard sensitivity output over its linear range when connected to a compatible extension cable and Proximitor Sensor. Built with a specialized FluidLoc cable and high-temperature ClickLoc connector, the probe withstands harsh thermal and moisture conditions inside turbine casings.
| Part Number | Description |
|---|---|
| 330851-02-000-070-90-00-05 | 3300 XL 25 mm Proximity Probe |
| 02 | Probe Case Type Option: M30x2 thread |
| 000 | Unthreaded Length Option: 0 mm |
| 070 | Overall Case Length Option: 70 mm |
| 90 | Total Length Option: 9.0 metres (29.5 feet) |
| 00 | Armor Option: No Armor |
| 05 | Agency Approval Option: Multiple Approvals |
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330851-02-000-070-90-00-05 |
| System | 3300 XL 25 mm Proximity Transducer System |
| Probe Tip Material | Polyetheretherketone (PEEK) |
| Probe Case Material | AISI 304 stainless steel (SST) |
| Probe Cable | 75 ohm triaxial, PFA insulated FluidLoc probe cable |
| Total Length | 9.0 metres (29.5 feet) |
| Linear Range | 12.7 mm (500 mils), starting at approx. 0.63 mm (25 mils) to 13.33 mm (525 mils) |
| Average Scale Factor (ASF) | 0.787 V/mm (20 mV/mil) nominal |
| Deviation from Best Fit Straight Line (DSL) | Less than +/-0.31 mm (+/-12 mils) |
| Probe DC Resistance (9.0 m) | 8.8 +/- 1.1 ohms (Center Conductor to Outer Conductor) |
| Recommended Minimum Target Size | 61 mm (2.4 in) diameter flat target (AISI 4140 steel) |
| Tensile Strength | 330 N (75 pounds) probe case to probe lead; 270 N (60 pounds) at probe lead to extension cable connector |
| Operating and Storage Temperature | -35 degC to +200 degC (-31 degF to +392 degF) |
| Short Term Temperature | +250 degC (+482 degF) maximum for less than 24 hours |
| Relative Humidity | 100% condensing, non-submersible when connectors are protected |
| Sealing | Viton O-ring and compression seal between probe tip and case |
| Certification / Standard | Details |
|---|---|
| EMC Directive | 2014/30/EU; EN 61000-6-2, EN 61000-6-4 |
| RoHS Directive | 2011/65/EU; China RoHS EFUP 15 years (SJ/T 11364-2024) |
| Maritime | ABS Rules for Conditions of Classification |
| cNRTLus (Intrinsically Safe - ia) | Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III |
| cNRTLus (Non-Incendive - nA, ec) | Class I, Zone 2: AEx/Ex nA IIC T5...T1 Gc / AEx/Ex ec IIC T5...T1 Gc; Class I, Division 2, Groups A, B, C, D |
| ATEX/IECEx (ia) | II 1 G Ex ia IIC T5...T1 Ga; II 1 D Ex ia IIIC T90 degC...T280 degC Dc |
| ATEX/IECEx (nA, ec) | II 3 G Ex nA IIC T5...T1 Gc; Ex ec IIC T5...T1 Gc |
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Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 330851-02-000-070-90-00-05
Country of origin:United States
Product Type: Proximity Probes
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 590g
Dimensions: 70 mm x 30 mm x 30 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months
The Bently Nevada 330851-02-000-070-90-00-05 is a non-contacting proximity probe belonging to the 3300 XL 25 mm Proximity Transducer System. Designed for differential expansion (DE) measurements on mid-size to large steam turbine generators, the probe observes target movement caused by growth rate differences between the turbine rotor and machine stator. It provides standard sensitivity output over its linear range when connected to a compatible extension cable and Proximitor Sensor. Built with a specialized FluidLoc cable and high-temperature ClickLoc connector, the probe withstands harsh thermal and moisture conditions inside turbine casings.
| Part Number | Description |
|---|---|
| 330851-02-000-070-90-00-05 | 3300 XL 25 mm Proximity Probe |
| 02 | Probe Case Type Option: M30x2 thread |
| 000 | Unthreaded Length Option: 0 mm |
| 070 | Overall Case Length Option: 70 mm |
| 90 | Total Length Option: 9.0 metres (29.5 feet) |
| 00 | Armor Option: No Armor |
| 05 | Agency Approval Option: Multiple Approvals |
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330851-02-000-070-90-00-05 |
| System | 3300 XL 25 mm Proximity Transducer System |
| Probe Tip Material | Polyetheretherketone (PEEK) |
| Probe Case Material | AISI 304 stainless steel (SST) |
| Probe Cable | 75 ohm triaxial, PFA insulated FluidLoc probe cable |
| Total Length | 9.0 metres (29.5 feet) |
| Linear Range | 12.7 mm (500 mils), starting at approx. 0.63 mm (25 mils) to 13.33 mm (525 mils) |
| Average Scale Factor (ASF) | 0.787 V/mm (20 mV/mil) nominal |
| Deviation from Best Fit Straight Line (DSL) | Less than +/-0.31 mm (+/-12 mils) |
| Probe DC Resistance (9.0 m) | 8.8 +/- 1.1 ohms (Center Conductor to Outer Conductor) |
| Recommended Minimum Target Size | 61 mm (2.4 in) diameter flat target (AISI 4140 steel) |
| Tensile Strength | 330 N (75 pounds) probe case to probe lead; 270 N (60 pounds) at probe lead to extension cable connector |
| Operating and Storage Temperature | -35 degC to +200 degC (-31 degF to +392 degF) |
| Short Term Temperature | +250 degC (+482 degF) maximum for less than 24 hours |
| Relative Humidity | 100% condensing, non-submersible when connectors are protected |
| Sealing | Viton O-ring and compression seal between probe tip and case |
| Certification / Standard | Details |
|---|---|
| EMC Directive | 2014/30/EU; EN 61000-6-2, EN 61000-6-4 |
| RoHS Directive | 2011/65/EU; China RoHS EFUP 15 years (SJ/T 11364-2024) |
| Maritime | ABS Rules for Conditions of Classification |
| cNRTLus (Intrinsically Safe - ia) | Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III |
| cNRTLus (Non-Incendive - nA, ec) | Class I, Zone 2: AEx/Ex nA IIC T5...T1 Gc / AEx/Ex ec IIC T5...T1 Gc; Class I, Division 2, Groups A, B, C, D |
| ATEX/IECEx (ia) | II 1 G Ex ia IIC T5...T1 Ga; II 1 D Ex ia IIIC T90 degC...T280 degC Dc |
| ATEX/IECEx (nA, ec) | II 3 G Ex nA IIC T5...T1 Gc; Ex ec IIC T5...T1 Gc |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Black
|
| Country of origin |
United States
|
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