Description

Bently Nevada 3300/12 AC Power Supply

The Bently Nevada 3300/12, also cataloged as the 3300/12 AC Power Supply, operates as a dedicated hardware component for regulated DC power distribution within 3300 series machinery monitoring racks. It provides direct electrical execution for up to 12 3300 series monitors and their connected transducers.

Hardware Specifications

Parameter	Specification
ModelBrand	Bently Nevada 3300/12
Origin	Manufactured for Bently Nevada 3300 series systems
Weight	Approximately 1.0 kg (2.2 lbs)
Dimensions	83 mm (3.25 in) vertical height
OperatingTemp	0 degC to +65 degC
StorageTemp	-40 degC to +85 degC
RelativeHumidity	95% non-condensing
InputVoltage	95-125 Vac, 50/60 Hz or 190-250 Vac, 50/60 Hz
PowerConsumption	Nominal 1.5 W (varies with rack load)
OutputVoltage	Regulated DC for 3300 series monitors and transducers

Eddy-Current ProbeScaling & Signal Integrity

The 3300/12 module includes integrated filtering for line noise suppression, supporting eddy-current probe scaling and gap voltage validation down to -10 VDC targets. Its architecture minimizes cross-talk between channels, preserving rotordynamics monitoring fidelity across multiple transducers in a single rack configuration.

Frequently Asked Questions

Q: VnA: Can the 3300/12 be hot-swapped while the rack is powered?
A: No. The power supply must be installed with the rack de-energized to avoid transient voltage spikes affecting connected monitors.

Q: VnA: What is the maximum number of monitors supported?
A: The 3300/12 provides regulated DC power for up to 12 monitors with associated transducers.

Q: VnA: Does the module support backplane current sharing for redundant racks?
A: Only one 3300/12 supply is intended per rack. Parallel operation of multiple units is not supported.

Field Installation Guidelines

1. Mount the 3300/12 in Position 1 (leftmost slot) of the 3300 rack.
2. Ensure proper grounding to the rack chassis to reduce electrical noise coupling.
3. Route input AC power with separation from signal cables to prevent EMI.
4. Verify ambient temperature within 0 degC to +65 degC and humidity below 95% non-condensing.
5. Tighten connectors to manufacturer torque specifications; avoid stress on DC output terminals.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems