Description

The Bently Nevada 3300/16-12-01-01-00-00-00 serves as the primary 3300/16 XY/Gap Dual Vibration Monitor utilized to execute continuous radial vibration and shaft position tracking across Bently Nevada 3300 Machinery Protection System platforms. Consequently, this microprocessor-controlled module processes high-speed proximity signals to drive immediate automated machinery shutdown loops.

Suffix Breakdown & Model Matrix

• 3300/16: Base part number for the XY/Gap Dual Vibration Monitor.
• -12: Full-scale range option designating 0 to 150 micrometers peak-to-peak (µm pp).
• -01: Transducer input option specifying 3300 or 7200 8 mm proximity probes (200 mV/mil scale factor).
• -01: Alarm relay option designating an epoxy-sealed relay module assembly.
• -01: Agency approval option specifying North American and European hazardous area certifications.
• -00: Internal barrier option designating no internal zener barriers installed.
• -00: Trip multiply option specifying no factory-set trip multiply functionality.
• -00: Special modification option designating a standard production hardware profile without hardware variations.

Hardware Specifications

Transducer Interface & Mechanical Monitoring Characteristics

This monitor inputs analog signals to maintain precise eddy-current probe scaling for two orthogonal transducer paths. The digital processing core conducts real-time gap voltage validation (-10 VDC targets) to verify physical probe-to-journal clearance before analyzing dynamic displacement parameters. Furthermore, integrated input circuitry implements active cross-talk suppression between parallel proximity loops, isolating high-frequency electronic noise from the raw waveforms used to chart complex rotor dynamics.

Frequently Asked Questions

Q: How does this specific monitor execute a protective lock-out if a sensor field line faults?

A: The module executes a continuous Not OK self-diagnostic check. If field voltages shift outside the normal linear range, the monitor immediately drops the associated 4-20 mA current loops to less than 3.6 mA and blocks trip relay actuation to prevent accidental machinery shutdown.

Q: What physical terminal parameters apply to the 4-20 mA analog recording loop connections?

A: The rear terminal blocks clamp external recorder wires using standard screw terminals. Technicians must route individual twisted-shielded loops to the control network, keeping the loops under a maximum external loop impedance limit of 600 Ohms to ensure accurate transmission.

Field Installation Guidelines

1. Guide the circuit card straight into the designated 3300 rack chassis track until the backplane connectors seat completely.
2. Affix the matching epoxy-sealed rear I/O terminal module directly onto the corresponding backplane pins at the back of the rack chassis.
3. Terminate the overall cable shields cleanly at the primary plant instrumentation ground bus, while isolating the shields at the transducer side to avoid ambient ground current loops.
4. Set the internal hardware jumper links to configure the dry contact relays for normally energized or normally de-energized operation before commissioning the channel loops.