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The 330880-28-00-035-01-02 The design of the PROXPAC XL Proximity Transducer Assembly is similar to our 31000/32000 Proximity Probe Housing Assemblies. The assembly offers the same advantages and features as the 31000 and 32000 housings for accessing and externally adjusting proximity probes. However, the housing cover of the PROXPAC XL Assembly also contains its own 3300 XL Proximitor sensor. This design makes the PROXPAC XL Assembly a completely self-contained proximity probe system, and eliminates the need for an extension cable between the probe and its associated Proximitor sensor. It also eliminates the need for a separate Proximitor housing, as the field wiring connects directly between the monitors and PROXPAC XL Assemblies.
Precision in Compact Standoffs
Enhanced Field Wiring Integration
Global Safety Compliance
The PROXPAC XL housing is made of Polyphenylene Sulfide (PPS), which is an advanced, molded thermoplastic. This material replaces the steel and aluminum in previous housings offered in the Bently Nevada product line. It also incorporates glass and conductive fibers in the PPS to strengthen the housing and more effectively dissipate electrostatic charges. The PROXPAC XL housing is rated for Type 4X and for IP66 environments and provides extra protection in severe environments.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 330880-28-00-035-01-02 PROXPAC XL Proximity Transducer, English Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. Convenient on-site adjustment and maintenance
Oil & Gas
Because oil and gas facilities are usually in flammable and explosive hazardous environments, this model's -02 multinational certification is the "ticket" to enter this industry. It monitors the radial vibration of the compressor shaft (to judge bearing wear) and axial displacement (to prevent rotor-stator collision).
Petrochemical
Monitor the axial trajectory of the high-speed pump. Since this model has the -01 option (enhanced sealed joint), it can effectively prevent chemical mist from penetrating into the sensor.
Power Generation
The integrated design of the 330880 simplifies the wiring space around the turbine housing and reduces unplanned downtime caused by damage to external cables.
Mining & Heavy Industry
Protect the motor bearings of large ventilation equipment to prevent bearing damage caused by dust accumulation or lubrication failure.
Wiring and Sealing Protection (-01 Option) This model comes with the -01 accessory option, which includes specific sealed connectors. To ensure sealing, after connecting the field cables, the cable gland at the wiring entry must be tightened. If the seal is not tight, moisture or oil mist entering the Proxpac can cause signal drift or false "high vibration" alarms. Ensure that the shield of the shielded cable is reliably grounded on the system side, but usually left floating on the sensor side (unless there are special single-ended grounding requirements) to avoid ground loop interference.
What is the difference between the '01' option and the common '00' option in the 330880-28-00-035-01-02 model?
"Option '01' usually refers to the inclusion of specific cable glands or wiring accessories. Compared to '00' option (which typically only provides threaded holes or plugs), the '01' configuration is more convenient for direct on-site waterproof and dustproof shielded cable connections.
When installing 330880-28-00-035-01-02, how can you determine if the probe is installed too deep by voltage?
The normal installation voltage (gap voltage) should be around -10 VDC. If the measured voltage absolute value is very low (for example, -1 V or -2 V), it indicates that the probe is too close to the shaft (installed too deeply).
Why can't the internal cable of 330880-28-00-035-01-02 be cut arbitrarily to fit the installation space?
The circuit parameters (inductance and capacitance) of the 330880 system are calculated based on a specific cable length. Arbitrarily cutting the cable will change the oscillation frequency of the system, causing its output sensitivity to no longer be the standard 200 mV/mil, which will result in completely incorrect vibration values shown by the monitoring system.
What would be the consequences if the shaft material of 330880-28-00-035-01-02 is 'stainless steel' instead of '4140 steel'?
The Bentley 3300 XL series is calibrated by default for AISI 4140 steel. Because the electrical conductivity and magnetic permeability of stainless steel differ from those of 4140 steel, the eddy current effect generated by the probe may be weakened or enhanced, causing the voltage change to be much greater or less than 200 mV when the actual vibration is 1 mil. If it is necessary to measure stainless steel shafts, a dedicated material calibration curve or correction factor must be used.
What is the significance of the “-02” certification at the end of 330880-28-00-035-01-02 for the chemical industry?
"-02" represents multiple agency approvals for explosion protection, such as ATEX, IECEx, and CSA.
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