Product Overview for the 330906-02-12-50-02-00 Reverse Mount Probe

The 330906-02-12-50-02-00 is a 3300 NSv Reverse Mount Probe from Bently Nevada. Firstly, this device is manufactured in the U.S.A. to high quality standards. Specifically, it features 3/8-24 UNF threads for reverse mounting applications. In addition, the 330906-02-12-50-02-00 has increased chemical resistance compared to the 3300 RAM probe. Consequently, this allows its use in many process compressor applications. Moreover, the side-view characteristics are superior to those of the 3000-series 190 probe when gapped at the same distance. Therefore, the 330906-02-12-50-02-00 provides more accurate measurements in tight axial spaces.

Model Number Breakdown

The 330906-02-12-50-02-00 part number follows the pattern 330906-02-12-CC-DD-EE. Firstly, 330906 identifies the base model as a 3300 NSv Reverse Mount Probe with 3/8-24 UNF threads. Secondly, 02 specifies the connector option, which is a miniature coaxial ClickLoc connector with standard cable. Thirdly, 12 indicates additional configuration details. Fourthly, 50 represents the total length option, meaning 5.0 meters (16.4 feet). Fifthly, 02 is another configuration code. Sixthly, 00 indicates the agency approval option as not required. As a result, the 330906-02-12-50-02-00 is a 5.0 meter reverse mount probe without hazardous area certifications. Therefore, this probe is suitable for general purpose compressor monitoring applications.

Key Features and Benefits

Increased Chemical Resistance

The 330906-02-12-50-02-00 offers enhanced chemical resistance. Firstly, this improvement over the 3300 RAM probe allows use in aggressive environments. Specifically, the probe tip material is polyphenylene sulfide (PPS). In addition, the probe case is AISI 304 stainless steel. Consequently, the 330906-02-12-50-02-00 withstands exposure to many industrial chemicals. Therefore, it is ideal for process compressor applications where chemical compatibility is critical.

Superior Side-View Characteristics

The 330906-02-12-50-02-00 has improved side-view performance. Specifically, its side-view characteristics are superior to the 3000-series 190 probe when gapped at the same distance from the target. Consequently, the 330906-02-12-50-02-00 provides more accurate readings in tight axial spaces. Therefore, this probe is excellent for thrust position monitoring where space is limited.

ClickLoc Connector System

The 330906-02-12-50-02-00 uses gold-plated brass ClickLoc connectors. Firstly, these connectors lock into place with a positive audible click. In addition, the locking mechanism prevents the connection from loosening due to vibration. Specifically, the connector option 02 is a miniature coaxial ClickLoc connector with standard cable. Consequently, the 330906-02-12-50-02-00 maintains reliable electrical contact over the life of the installation.

TipLoc Molding Technology

The 330906-02-12-50-02-00 uses the patented TipLoc molding method. Firstly, this method provides a robust bond between the probe tip and the probe body. In addition, it eliminates the risk of tip separation in high-vibration environments. Consequently, the 330906-02-12-50-02-00 offers exceptional mechanical reliability. Therefore, unplanned maintenance due to probe failure is significantly reduced.

Technical Specifications of the 330906-02-12-50-02-00

General Specifications

• Manufacturer: Bently Nevada.

• Product No.: 330906-02-12-50-02-00.

• Product Type: 3300 NSv Reverse Mount Probe.

• Country of Origin: Made in U.S.A.

• Thread Type: 3/8-24 UNF threads (reverse mount configuration).

• Total Length: 5.0 meters (16.4 feet).

• Connector Option: 02 = Miniature coaxial ClickLoc connector, standard cable.

• Agency Approval: 00 = Not required.

• System Weight (Typical): 14 to 150 g (0.5 to 5.3 oz) depending on configuration.

DC Resistance Specifications

• Probe Length: 5.0 meters.

• Resistance (Center to Outer Conductor): 5.3 ± 0.7 ohms.

Field Wiring Specifications

• Wire Size: Accepts 0.2 to 1.5 mm² (16 to 24 AWG).

• Wire Size with Ferrules: Accepts 0.25 to 0.75 mm² (18 to 23 AWG).

• Recommended Cable: Three-conductor shielded triad cable.

• Maximum Length: 305 meters (1,000 feet) between Proximitor Sensor and monitor.

• Frequency Response: Refer to Figure 16 and Figure 17 for signal rolloff at high frequencies.

Measurement Specifications

• Linear Range: 1.5 mm (60 mils).

• Linear Range Start: Begins at approximately 0.25 mm (10 mils) from target.

• Linear Range End: Extends to 1.75 mm (70 mils) from target.

• Linear Range Voltage: Approximately -1 to -13 Vdc.

• Recommended Gap Setting: 1.0 mm (40 mils).

Mechanical Specifications

• Probe Tip Material: Polyphenylene sulfide (PPS).

• Probe Case Material: AISI 304 stainless steel (SST).

• Maximum Thread Engagement Length (M10x1): 15 mm (for reference).

Torque Specifications

• Maximum Rated Torque (Reverse Mount Probes): 22.6 N•m (200 in•lb).

• Recommended Torque (Reverse Mount Probes): 7.5 N•m (66 in•lb).

Temperature Specifications

• Operating Temperature: -52°C to +177°C (-62°F to +351°F).

• Storage Temperature: -52°C to +177°C (-62°F to +351°F).

• Low Temperature Warning: Exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal.

Pressure Sealing

• Sealing Design: The 330906-02-12-50-02-00 is designed to seal differential pressure between the probe tip and case.

• Sealing Material: Viton O-ring.

Installation Guide for the 330906-02-12-50-02-00

Follow these steps for a proper installation of the 330906-02-12-50-02-00.

Step 1: Mounting Hole Preparation

Firstly, prepare a mounting hole with 3/8-24 UNF threads. Ensure the hole depth accommodates the required thread engagement. Then, clean the threads thoroughly to remove any debris. Consequently, the 330906-02-12-50-02-00 will install smoothly without cross-threading.

Step 2: Probe Installation

After that, thread the 330906-02-12-50-02-00 into the mounting hole by hand. Then, tighten to the recommended torque of 7.5 N•m (66 in•lb). Do not exceed the maximum rated torque of 22.6 N•m (200 in•lb). Therefore, thread and seal damage will be avoided completely.

Step 3: Cable Connection

Then, connect the 330906-02-12-50-02-00 to your extension cable. Use the miniature coaxial ClickLoc connector for this connection. Push firmly until the connector locks into place with an audible click. Consequently, the connection will resist loosening from vibration.

Step 4: Extension Cable to Proximitor Sensor

Furthermore, connect the extension cable to your 3300 XL NSv Proximitor Sensor. Again, use the ClickLoc locking mechanism for a secure fit. Then, route the cables away from sources of electrical noise.

Step 5: Gap Setting

Finally, set the probe gap to 1.0 mm (40 mils) as the recommended starting point. Use a DC voltmeter to measure the output voltage at the Proximitor Sensor. The linear range voltage is approximately -1 to -13 Vdc. Adjust the probe position until you achieve the desired gap voltage.

Packaging List for the 330906-02-12-50-02-00

• 330906-02-12-50-02-00 3300 NSv Reverse Mount Probe (1 unit)

• Viton O-ring (pre-installed on probe)

• Product identification label (1 sheet)

Frequently Asked Questions (FAQs) About the 330906-02-12-50-02-00

Q1: What is the thread type on the 330906-02-12-50-02-00?

The 330906-02-12-50-02-00 has 3/8-24 UNF threads. Specifically, this is a reverse mount probe configuration. Therefore, it is designed for applications where standard mounting is not possible.

Q2: What is the linear range of this probe?

The 330906-02-12-50-02-00 has a linear range of 1.5 mm (60 mils). Specifically, the linear range begins at approximately 0.25 mm from the target. It extends from 0.25 to 1.75 mm (10 to 70 mils). Consequently, the corresponding output voltage ranges from approximately -1 to -13 Vdc.

Q3: What is the recommended gap setting for this probe?

The 330906-02-12-50-02-00 has a recommended gap setting of 1.0 mm (40 mils). This setting provides optimal performance within the linear range. Therefore, always set the gap to this value during initial installation.

Q4: What is the temperature range of the 330906-02-12-50-02-00?

The 330906-02-12-50-02-00 operates and stores between -52°C and +177°C (-62°F to +351°F). However, exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal. Therefore, consider low-temperature applications carefully.

Q5: What type of connector does this probe use?

The 330906-02-12-50-02-00 uses a miniature coaxial ClickLoc connector with standard cable (option 02). This connector locks into place and prevents loosening from vibration. Therefore, it is ideal for high-vibration turbomachinery applications.