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Bently Nevada 135305-01 Dual Vibration XY/Gap Monitor
SKU: 135305-01
In stock: 20
Description

Bently Nevada 135305-01 Dual Vibration XY/Gap Monitor

Configured for dual-channel shaft vibration and gap monitoring in Bently Nevada machinery protection systems, the Bently Nevada 135305-01 (135305 Dual Vibration XY/Gap Monitor) provides direct signal conditioning, alarm processing, and analog retransmission from proximity probe inputs. The monitor accepts one or two eddy-current transducer signals, supports multiple transducer sensitivities, and performs continuous vibration and shaft position evaluation for rotating equipment protection applications.

Suffix Breakdown & Model Matrix

The available documentation identifies 135305-01 as a specific monitor assembly. No official suffix differentiation or ordering matrix is provided in the supplied data; therefore, no suffix breakdown is presented.

Hardware Specifications

Parameter Specification
Model 135305-01
Brand Bently Nevada
Origin United States
Product Type Dual Vibration XY/Gap Monitor
Signal Inputs 1 or 2 proximity probe channels
Input Impedance 10 kOhm
Transducer Sensitivity 100 mV/mil (4 V/mm) or 200 mV/mil compatible configurations
Compatible Transducers 3300 XL 5 mm, 3300 XL 8 mm, 7200 Series
Frequency Response 4 Hz to 4,000 Hz
Low Frequency Option 1 Hz to 600 Hz
Analog Outputs 4-20 mA, 0 to -10 VDC, 1 to 5 VDC
Accuracy +/-0.33% typical, +/-1% maximum at 25 deg C
Alarm Functions Alert and Danger alarms per channel
Alarm Delay 1 s to 6 s programmable
Trip Multiply 2X or 3X startup bypass
Operating Temp 0 deg C to 65 deg C
Storage Temp -40 deg C to 85 deg C
Relative Humidity Up to 95%, non-condensing
Weight 1.0 kg
Power Consumption 2.0 W nominal, 3.0 W maximum

Eddy-Current Probe Scaling and Gap Voltage Verification

The 135305-01 is designed for operation with eddy-current transducer systems commonly used in radial vibration and shaft position measurements. Support for both 100 mV/mil and 200 mV/mil transducer scaling allows integration with multiple Bently Nevada probe families.

Gap voltage validation is a standard commissioning activity for XY vibration monitoring channels. Proper gap adjustment ensures the probe operates within its calibrated linear range and allows accurate shaft position tracking. Monitoring of gap conditions also assists in detecting transducer installation issues, excessive probe standoff variation, and mechanical movement affecting rotor dynamic measurements.

Frequently Asked Questions

Q: Can both vibration channels operate simultaneously in XY monitoring applications?
A: Yes. The monitor accepts up to two proximity probe inputs and is intended for dual-channel vibration and gap measurement functions.

Q: Does the monitor provide retransmission signals for external control or monitoring systems?
A: Yes. Programmable analog outputs are available in 4-20 mA, 0 to -10 VDC, and 1 to 5 VDC formats.

Q: How are startup transient vibration conditions managed?
A: The monitor supports 2X and 3X Trip Multiply functions, allowing temporary alarm setpoint multiplication during startup and acceleration periods.

Field Installation Guidelines

  • Verify probe type, extension cable, and monitor configuration compatibility before energizing the monitoring channel.

  • Confirm transducer scale factor settings match the installed proximity probe system.

  • Route transducer cables separately from motor power, excitation, and switching conductors.

  • Maintain shield continuity and terminate cable shields according to plant instrumentation grounding practices.

  • Validate channel gap voltages during commissioning to confirm operation within the calibrated measurement range.

  • Configure Alert and Danger alarm thresholds according to machinery protection requirements before placing equipment into service.

  • After installation, verify analog retransmission outputs against known vibration or position reference values.