Bently Nevada 330730-080-02-00 3300 XL Extension Cable

Product Overview

Bently Nevada 330730-080-02-00 3300 XL Extension Cable: Seamless Replacement & Upgrade Solution

The Bently Nevada 330730-080-02-00 is a precision-engineered extension cable designed for the 3300 XL Series vibration monitoring system — one of the most widely deployed machinery protection platforms in rotating equipment applications worldwide. Whether you are replacing a failed cable in a live plant environment, upgrading from an older 3300 Series (non-XL) installation, or consolidating spare parts inventory for a multi-train turbomachinery protection system, this 330730-080-02-00 extension cable delivers the exact mechanical and electrical interface required for uninterrupted system continuity.

The 3300 XL system architecture relies on a tightly integrated signal chain: the proximitor/oscillator probe tip, the extension cable, and the proximitor sensor housing must all be matched in length and impedance to maintain calibrated output. The 330730-080-02-00 provides an 8-meter (approximately 26-foot) armored extension cable with the correct connector terminations on both ends, ensuring that the probe-to-proximitor signal path remains within the calibrated gap voltage range. Substituting an incorrect cable length or connector type will shift the system’s linear range and introduce measurement error — a critical concern for API 670-compliant machinery protection systems monitoring compressors, steam turbines, pumps, and gearboxes.

In retrofit and migration projects, this cable is most commonly required when facilities are transitioning from legacy Bently Nevada 3300 Series (5mm or 8mm probe systems) to the current 3300 XL platform, or when replacing aged cables that have suffered jacket degradation, connector corrosion, or mechanical damage from vibration fatigue in high-cycle environments. The 330730-080-02-00 is fully compatible with the 3300 XL 8mm Proximity Transducer System, and pairs directly with the 330730 series probe and the 330180 proximitor sensor to form a complete transducer assembly.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful migration to or within the Bently Nevada 3300 XL platform rarely involves a single component. In practice, field engineers replacing the 330730-080-02-00 extension cable are typically working within a broader transducer assembly or monitor rack upgrade. The complete 3300 XL proximity transducer system consists of three matched components: the 330730 series proximity probe (tip assembly), the 330730-080-02-00 extension cable (this item), and the 330180-91-00 proximitor sensor housing. All three must be ordered as a matched set if the existing probe or proximitor is also being replaced — mixing XL and non-XL components will result in out-of-range gap voltages and false alarms or missed trips.

At the monitor rack level, the 3300 XL transducer system interfaces with Bently Nevada 3500 Series machinery protection monitors, including the 3500/40M Proximitor/Seismic Monitor and the 3500/42M Proximitor/Seismic Monitor. If your facility is simultaneously upgrading from a 3300/20 Radial Vibration Monitor to the 3500 platform, the 330730-080-02-00 cable remains compatible, provided the proximitor sensor is also updated to the 330180 series. The 3500/15 Power Supply Module and 3500/05 Rack Interface Module are commonly required when expanding or replacing a 3500 rack during the same outage window, and sourcing these alongside the extension cable reduces total installation time.

For facilities running Bently Nevada System 1 condition monitoring software, the analog output from the 3300 XL transducer chain feeds directly into the 3500 monitor’s Modbus TCP or RS-485 communication interface, enabling real-time vibration trending without additional signal conditioning hardware. In older DCS-integrated architectures — such as those using Honeywell Experion PKS or Emerson DeltaV as the supervisory layer — the 4–20 mA or voltage output from the 3500 monitor is wired to the DCS I/O marshalling cabinet, and the extension cable replacement has no impact on the DCS configuration or loop calibration records.

When the retrofit scope includes conduit rerouting or junction box relocation, the armored jacket of the 330730-080-02-00 provides mechanical protection suitable for installation in Class I, Division 2 (NEC) or Zone 2 (IEC) hazardous areas, consistent with the requirements of most petrochemical and power generation facilities. The 330130-080-02-00 armored probe cable (probe-side) and the 330730-080-02-00 extension cable (proximitor-side) together form the complete cable run from the bearing housing to the proximitor junction box, and both should be inspected and replaced as a pair during any planned turnaround.

Retrofit Guidance FAQ

Q: Can I use the 330730-080-02-00 with my existing 3300 (non-XL) proximitor?
A: No. The 3300 XL extension cable is calibrated for use with the 330180 series proximitor sensor. Using it with an older 3300 proximitor will shift the linear range and produce inaccurate gap voltage readings. You must upgrade the proximitor to the 330180-91-00 or equivalent XL-series housing simultaneously.

Q: Does replacing the extension cable require reprogramming the 3500 monitor?
A: Not if you are replacing a like-for-like 330730-080-02-00 cable. The 3500 monitor’s transducer parameters (gap voltage setpoints, alert/danger thresholds) are stored in the monitor configuration and are not affected by a cable swap, provided the new cable is the same part number and length. A functional verification (gap voltage check) is recommended after installation.

Q: Is the 330730-080-02-00 compatible with the Bently Nevada 3500/40M monitor?
A: Yes. The 3300 XL transducer system (probe + extension cable + proximitor) is the standard input transducer for the 3500/40M and 3500/42M proximity monitors. No adapter or signal conditioner is required.

Q: What is the physical installation clearance required?
A: The armored cable has a nominal outer diameter of approximately 6.4 mm and requires a minimum bend radius of 50 mm. It is compatible with standard 1/2-inch NPT conduit fittings and BN-style junction boxes. No special tools are required for connector installation — the connectors are pre-terminated at the factory.

Q: Can this cable be used in a hazardous area (Ex zone)?
A: The 330730-080-02-00 is suitable for installation in Class I, Division 2 / Zone 2 environments when installed per the applicable area classification requirements. For Division 1 / Zone 1 applications, consult the Bently Nevada installation drawing for the appropriate barrier or Zener barrier configuration.

Q: What if my required cable length is different from 8 meters?
A: Bently Nevada 330730 series extension cables are available in multiple lengths (2m, 5m, 8m, 9m). The last two digits of the part number suffix indicate the length code. Contact TOPNLMS with your required length and we will confirm the correct part number for your application.

Warranty Assurance

Every Bently Nevada 330730-080-02-00 extension cable shipped by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes continuity testing, connector integrity inspection, and visual examination of the armored jacket and strain relief. Units that do not pass inspection are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS will arrange replacement shipment or credit within 5 business days of receiving the returned item and confirming the defect. Our after-sales response team is reachable by email at [email protected] or by phone at +86 18359293191. We maintain buffer stock of the 330730-080-02-00 and related 3300 XL transducer components to support urgent replacement orders with same-day or next-day dispatch from our Xiamen warehouse.

For procurement teams requiring documentation, we can provide a certificate of conformance, packing list, and commercial invoice with HS code declaration for customs clearance. Lead time for standard orders is 1–3 business days. Express international shipping (DHL, FedEx, UPS) is available to minimize plant downtime during unplanned outages.

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