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The Bently Nevada 330185-02 is a 3300 XL Precision Micrometer configured in metric units (0–25 mm). It serves as a verification tool designed for acceptance testing and performance verification of eddy current proximity transducer systems according to original published specifications or American Petroleum Institute standard API 670.
The device checks transducer system performance by holding a probe in a dedicated mounting adapter while moving a high-precision AISI 4140 steel target button toward or away from the probe tip in measured increments, simulating shaft movement. By reading the corresponding output voltage from the Proximitor Sensor using a voltmeter, users can generate a voltage-versus-gap curve to evaluate linear range, average scale factor (ASF), incremental scale factor (ISF), and deviation from straight line (DSL). Additionally, the system provides verification capabilities for shaft position monitoring equipment.
| Part Number | Option | Description |
|---|---|---|
| 330185 | -AXX | 3300 XL Precision Micrometer |
| -01 | Micrometer in English units (0-1 in) | |
| -02 | Micrometer in metric units (0-25 mm) |
| Parameter | Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330185-02 |
| Measurement Range | 0 to 25 mm |
| Resolution | 0.0005 mm |
| Accuracy | + 0.0004 mm |
| Target Button Material | AISI 4140 Alloy Steel, 30.5 mm (1.20 in) diameter flat target |
| Casing Material | Fiberglass and Plastic |
| Case Dimensions (H x W x L) | 226 mm x 274 mm x 356 mm (8.9 in x 10.8 in x 14.0 in) |
| Total System Weight | 6.8 kg (14.5 lb) |
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Returns & Warranty




The Bently Nevada 330185-02 is a 3300 XL Precision Micrometer configured in metric units (0–25 mm). It serves as a verification tool designed for acceptance testing and performance verification of eddy current proximity transducer systems according to original published specifications or American Petroleum Institute standard API 670.
The device checks transducer system performance by holding a probe in a dedicated mounting adapter while moving a high-precision AISI 4140 steel target button toward or away from the probe tip in measured increments, simulating shaft movement. By reading the corresponding output voltage from the Proximitor Sensor using a voltmeter, users can generate a voltage-versus-gap curve to evaluate linear range, average scale factor (ASF), incremental scale factor (ISF), and deviation from straight line (DSL). Additionally, the system provides verification capabilities for shaft position monitoring equipment.
| Part Number | Option | Description |
|---|---|---|
| 330185 | -AXX | 3300 XL Precision Micrometer |
| -01 | Micrometer in English units (0-1 in) | |
| -02 | Micrometer in metric units (0-25 mm) |
| Parameter | Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 330185-02 |
| Measurement Range | 0 to 25 mm |
| Resolution | 0.0005 mm |
| Accuracy | + 0.0004 mm |
| Target Button Material | AISI 4140 Alloy Steel, 30.5 mm (1.20 in) diameter flat target |
| Casing Material | Fiberglass and Plastic |
| Case Dimensions (H x W x L) | 226 mm x 274 mm x 356 mm (8.9 in x 10.8 in x 14.0 in) |
| Total System Weight | 6.8 kg (14.5 lb) |
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 .
| Country of origin |
United States
|