Product Overview

The Bently Nevada 330730-080-00-CN is a 3300 XL 11 mm Extension Cable. This cable connects a 3300 XL 11 mm probe to its Proximitor Sensor.

The 3300 XL 11 mm probe comes in varying probe case configurations. These include armored and unarmored ½-20, ⅝-18, M14 x 1.5 and M16 x 1.5 probe threads. The reverse mount 3300 XL 11 mm probe comes standard with either ⅜-24 or M10 x 1 threads. All components of the transducer system have gold-plated brass ClickLoc connectors. These connectors lock into place, preventing the connection from becoming loose.

Ordering Information Breakdown

The 330730-080-00-CN follows a specific ordering code structure.

• 330730: 3300 XL 11 mm Extension Cable base model.

• 080: 8.0 meters (26.2 feet) cable length.

• 00: Standard cable (no FluidLoc option).

• CN: ATEX/IECEx and Chinese NEPSI hazardous area marking.

General Specifications

The 330730-080-00-CN offers reliable signal transmission for proximity systems.

• Manufacturer: Bently Nevada.

• Product Type: 3300 XL 11 mm Extension Cable.

• Model: Extension Cable.

• Cable Length: 8.0 metres (26.2 feet).

• Connector and Cable Option: Standard cable.

• Condition: New & Original in Factory Packing.

• Factory Warranty: 12 Months.

Cable Weight:

• Extension Cable: 45 g/m (0.5 oz/ft).

• Armored Extension Cable: 140 g/m (1.5 oz/ft).

• Total Weight: 0.36 kg.

Electrical Specifications

The 330730-080-00-CN meets precise electrical requirements.

DC Resistance (8.0 meter length):

• RCORE (Center to Center): 8.5 ± 1.1 ohms.

Extension Cable Capacitance:

• 69.9 pF/m (21.3 pF/ft) typical.

Extension Cable Material:

• 75 Ω triaxial, fluoroethylene propylene (FEP) insulated.

Connector Features

All components of the transducer system have gold-plated brass ClickLoc connectors. These connectors lock into place, preventing the connection from becoming loose.

Connector Protector Option:
Provides additional protection of the connectors in a humid or moist environment. Connector protectors are recommended for all installations.

Note: Silicone tape is also provided with each 3300 XL extension cable. It can be used instead of connector protectors. However, silicone tape is not recommended in applications where the probe-to-extension cable connection will be exposed to turbine oil.

Probe Construction Features

The 3300 XL 11 mm probe includes several patented design features.

TipLoc Molding Method:
Provides a robust bond between the probe tip and the probe body. This ensures long-term reliability.

CableLoc Design:
The probe cable is securely attached to the probe tip utilizing this patented design. It provides 330 N (75 lb) pull strength.

Locknut with Safety Wire Holes:
The 3300 XL 11 mm probe comes standard with a locknut featuring pre-drilled safety wire holes.

Temperature Range

The 330730-080-00-CN handles extreme temperatures.

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

Linear Range and Gap Setting

The 3300 XL 11 mm proximity system provides an extended linear range.

• Linear Range: 4.0 mm (160 mils).

• Linear Range Begins: Approximately 0.5 mm (20 mils) from target.

• Linear Range Extends: 0.5 to 4.5 mm (20 to 180 mils) (approximately -1 to -17 Vdc).

• Extended DSL Range: 0.5 to 5.0 mm (20 to 200 mils) (-1 to -19 Vdc).

• Important Note: The extended DSL range is not applicable when using zener barriers.

• Recommended Gap Setting: 2.5 mm (100 mils).

Field Wiring Guidelines

Field wiring connects the Proximitor Sensor to the monitor.

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

• With Ferrules: 0.25 to 0.75 mm² (18 to 23 AWG).

• Recommendation: Use three-conductor shielded triad cable.

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

• Note: See the frequency response graph for signal rolloff at high frequencies when using longer field wiring lengths.

Mechanical Specifications

The 330730-080-00-CN uses high-quality materials.

• Probe Tip Material: Polyphenylene sulfide (PPS).

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

• Probe Cable Specification: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated.

• Probe Lengths Available: 1, 5, or 9 meters.

• Extension Cable Armor (Optional): Flexible AISI 302 SST with FEP outer jacket.

Hazardous Area Approvals

The 330730-080-00-CN carries specific hazardous area markings.

• Agency Approval Option: CN.

• Approvals: ATEX, IECEx, and Chinese NEPSI hazardous area marking.

These approvals make the cable suitable for installation in explosive atmospheres. Therefore, it meets international and Chinese hazardous area requirements.

Calibration Note

Proximitor Sensors are supplied by default from the factory calibrated to AISI 4140 steel. Calibration to other target materials is available upon request.

Key Features

The 330730-080-00-CN offers several advantages for proximity measurement.

Standard Cable Construction:
The -00 option indicates standard cable without FluidLoc. This suits applications where oil leakage prevention is not required.

Gold-Plated ClickLoc Connectors:
Lock into place to prevent loosening. This ensures reliable connections under vibration.

Wide Temperature Range:
Operates from -52°C to +177°C. Hence, it suits extreme climate conditions.

High Pull Strength:
The CableLoc design provides 330 N (75 lb) pull strength. Consequently, the cable remains securely attached to the probe tip.

Hazardous Area Approvals:
The -CN suffix indicates ATEX, IECEx, and NEPSI approvals. This allows installation in explosive atmospheres worldwide.

Typical Applications

The 330730-080-00-CN suits various turbomachinery monitoring applications.

• Connecting 3300 XL 11 mm probes to Proximitor Sensors on steam turbines.

• Extending probe cables for axial position measurement on gas compressors.

• Shaft eccentricity monitoring on hydro turbines.

• Differential expansion measurement on large rotating equipment.

• Installations requiring ATEX, IECEx, or NEPSI hazardous area certifications.

Installation Guidelines

Install the 330730-080-00-CN between the 3300 XL 11 mm probe and the Proximitor Sensor. Connect the gold-plated ClickLoc connectors by pushing them together until they lock. Verify the lock is secure.

For hazardous area installations, follow the ATEX, IECEx, or NEPSI certification requirements. Use connector protectors in humid or moist environments. Alternatively, use the supplied silicone tape, but not in turbine oil applications.

Route the cable away from high-voltage sources and sharp edges. Observe the minimum bend radius for the cable. Do not exceed the maximum field wiring length of 305 meters between the Proximitor Sensor and monitor.

What is in the Box

Please inspect all items upon delivery.

• Bently Nevada 330730-080-00-CN 3300 XL 11 mm Extension Cable (8.0 meters).

• Standard cable assembly (no FluidLoc).

• Gold-plated ClickLoc connectors on both ends.

• Silicone tape for connector protection.

• Installation instruction manual.

Frequently Asked Questions (FAQ)

1. What is the length of this extension cable?

The 330730-080-00-CN has a length of 8.0 meters (26.2 feet). The -080 suffix in the part number indicates this length.

2. What hazardous area approvals does this cable have?

The 330730-080-00-CN carries ATEX, IECEx, and Chinese NEPSI hazardous area markings. The -CN suffix indicates these approvals.

3. What type of connectors does this cable use?

The 330730-080-00-CN uses gold-plated brass ClickLoc connectors. These connectors lock into place, preventing the connection from becoming loose.

4. What is the operating temperature range of this cable?

The 330730-080-00-CN operates and stores from -52°C to +177°C (-62°F to +351°F).

5. Is this the FluidLoc cable option?

No. The 330730-080-00-CN uses standard cable construction. The -00 suffix indicates standard cable. For FluidLoc, order the -10 connector and cable option instead.