Technical Specifications

The 330185-02 offers precise measurement for transducer system verification. Its resolution reaches 0.0005 mm for fine adjustments. Furthermore, accuracy is ±0.0004 mm across the full range. The measurement range spans from 0 to 25 mm. Meanwhile, this precision micrometer works with all 3300 XL proximity probe systems.

Key Measurement Parameters

The 330185-02 provides laboratory-grade measurement capability. Resolution of 0.0005 mm allows detection of tiny probe movements. Similarly, accuracy of ±0.0004 mm meets stringent API 670 requirements. The 0-25 mm range covers typical transducer linear ranges. As a result, this micrometer helps verify average scale factor (ASF). It also checks incremental scale factor (ISF). Another key function is checking maximum deviation from straight line (DSL) tolerances.

Target Button Specifications

The 330185-02 uses a precision target button for shaft simulation. This target button is made from AISI 4140 alloy steel. The button diameter measures 30.5 mm (1.20 inches). In addition, it provides a flat target surface for consistent probe readings. This target simulates actual machine shaft positions accurately. Special target materials are available upon request. For custom target options, contact your sales professional.

Casing Material

The 330185-02 precision micrometer features a durable casing. The main casing uses fiberglass and plastic materials. This construction provides lightweight durability for field use. Moreover, the casing protects internal components during transport. It also resists common industrial chemicals and moisture.

Functional Description

The 330185-02 precision micrometer tests transducer system performance. A probe mounting adapter holds the probe securely in place. Then the high precision 4140 target button moves toward the probe tip. This movement occurs in specific, measurable increments. Consequently, the target button simulates the exact position of a rotating shaft. A voltmeter records the output from the Proximitor sensor. After that, you generate a probe curve using the 330185-02. Finally, compare this curve to published specifications for that transducer system.

Verification Capabilities

The 330185-02 verifies multiple transducer system parameters. For example, it checks proper operation of shaft position monitors. It also validates the linear range of the transducer system. Another function confirms average scale factor (ASF) meets specifications. Likewise, it verifies incremental scale factor (ISF) tolerances. The 330185-02 also checks maximum deviation from straight line (DSL). All tests can be performed at ambient temperatures. Furthermore, extended temperature testing is possible with this micrometer.

API 670 Compliance

The 330185-02 supports testing to API 670 standards. This American Petroleum Institute standard governs machinery protection systems. Bently Nevada transducer systems meet published performance specifications. Therefore, the 330185-02 helps verify compliance with these specifications. It ensures your transducer system works properly within published limits. For system reliability, regular testing with this micrometer is essential.

Physical Dimensions

The 330185-02 precision micrometer has a compact footprint for bench use. Height measures 226 mm (8.9 inches). Width measures 274 mm (10.8 inches). Meanwhile, length measures 356 mm (14.0 inches). Total weight is 6.8 kg (14.5 lbs). This size allows easy placement on workshop benches. Due to its weight, it is stable during operation. The 330185-02 is also portable enough for field service use.

Installation and Setup Guidelines

Place the 330185-02 on a stable, level surface before use. Ensure the work area is clean and free from vibration. Mount the probe using the appropriate adapter for your probe type. After that, install the AISI 4140 target button facing the probe tip. Connect a high-precision voltmeter to the Proximitor sensor output. Then zero the 330185-02 micrometer before taking measurements. Advance the target button in small, recorded increments. For best results, record the voltage output at each step.

Proper Use Techniques

Always clean the target button and probe tip before testing. Use the 330185-02 at room temperature for baseline measurements. Allow the transducer system to warm up for at least 30 minutes. In addition, take multiple readings at each position for consistency. Compare your results to the published specification sheet. Store the 330185-02 in its original case when not in use. Above all, avoid dropping or impacting the micrometer mechanism.

Package Contents

The 330185-02 includes the following items in its factory packaging:

• 3300 XL precision micrometer (330185-02) – 1 piece

• AISI 4140 alloy steel target button (30.5 mm diameter) – 1 piece

• Probe mounting adapter – 1 piece

• Instruction manual – 1 copy

• Factory calibration certificate – 1 copy

Note: Proximitor sensor, probe, and voltmeter are sold separately.

Common Applications

The 330185-02 serves multiple testing and verification roles. Use it for incoming inspection of new transducer systems. Similarly, apply it for periodic verification of installed monitoring systems. For troubleshooting suspect transducer performance, use the 330185-02. It is essential for calibration laboratories serving industrial plants. Additionally, the 330185-02 supports maintenance teams in power generation facilities. It also proves valuable in oil and gas applications requiring API 670 compliance.

Frequently Asked Questions (FAQ)

1. What transducer systems work with the 330185-02?
The 330185-02 works with all 3300 XL proximity probe systems. It also supports earlier Bently Nevada Proximitor sensor models.

2. Can I use this micrometer for non-Bently Nevada probes?
Yes, the 330185-02 can test any 5mm or 8mm proximity probe system. However, you may need an appropriate probe mounting adapter for non-Bently probes.

3. How often should I calibrate the 330185-02?
Bently Nevada recommends annual calibration for the 330185-02. For proper traceable calibration, send it to an accredited laboratory.

4. What is the difference between 330185-01 and 330185-02?
The 330185-02 is the metric version with 0-25 mm range. It offers 0.0005 mm resolution. In contrast, the -01 version uses imperial units (0-1 inch range).

5. Can the 330185-02 test high-temperature transducer systems?
Yes, the 330185-02 supports extended temperature testing. For such tests, you must place the entire micrometer in an environmental chamber.