BENTLY 3300/16-11-01-03-00-00-01 | XY Gap Vibration Monitor

• Brand: Bently Nevada
• Full Model Number: 3300/16-11-01-03-00-00-01
• Lifecycle Status: Obsolete / Discontinued
• Core Function: XY/GAP Dual Vibration Monitor
• Top 3 Technical Specs: 0–100 µm peak-to-peak full-scale range; 2 proximity-probe inputs; 200 mV/mil sensitivity
• Transducer Input: 3300 8 mm / 7200 5 mm and 8 mm / 3300 XL 8 mm Proximitor Sensors
• Alarm Relay: Quad epoxy-sealed relay
• Agency Approval: Not required
• Safety Barrier: None
• Trip Multiply: 2X
• Power Consumption: 2 W nominal
• Frequency Response: 4–4,000 Hz or 1–600 Hz programmable
• Recorder Outputs: +4 to +20 mA, 0 to -10 VDC, or +1 to +5 VDC
• Stock & Condition: Exact inventory confirmation required; New Surplus / Tested Refurbished; Emergency shipping subject to cutoff

00 = no agency approval; 00 = no safety barriers; 01 = 2X trip multiply. The manufacturer documentation identifies the 3300/16 as an XY/GAP Dual Vibration Monitor that accepts one or two proximity-probe signals.

Module 3: Obsolescence & Supply Chain Deep Dive

A failed 3300/16-11-01-03-00-00-01 can remove two independent radial-vibration measurements and associated average-shaft-position monitoring from a legacy machinery-protection rack. This specific 3300/16 configuration is designed for two proximity-probe channels, with a 0–100 µm peak-to-peak full-scale range, 200 mV/mil sensitivity, a quad epoxy-sealed relay arrangement, and 2X trip multiply. Bently Nevada’s operating manual also identifies the monitor’s gap-voltage function and independent Channel A/Channel B measurement architecture.

The TCO case is strongest when the existing 3300 rack, Proximitor Sensors, field wiring, and protection logic remain serviceable. A matched spare preserves those assets and avoids the engineering, rewiring, testing, and outage costs associated with replacing the complete machinery-monitoring platform. Lifecycle risk is real, however: Bently Nevada’s historical lifecycle notice placed the 3300/16 in Phase 4, and current industrial references identify the 3300/16 family as discontinued. That makes verified spare inventory particularly important for plants still operating this architecture.

Module 4: Compatibility & Replacement Matrix

The 3300/16 manual shows that the monitor’s configuration is established through defined hardware options and field-programmable settings, including transducer type, full-scale range, relay selection, barrier arrangement, and trip multiply.

⚠️ Field Traps — Watch Out

• Configuration-Code Mismatch: Do not replace this unit with a generic 3300/16. The 11-01-03-00-00-01 configuration defines the measurement range, transducer input, quad relay, approval, barrier, and trip-multiply settings.
• Transducer Power Setting: Bently Nevada specifies different Proximitor supply requirements for different transducer families. The manual states that 3300/7200 transducers use -24 VDC, while 3000-series transducers require -18 VDC; both the power supply and system monitor must be correctly programmed.

BENTLY 3300/16-11-01-03-00-00-01

Module 5: Quality Assurance & Testing SOP

1. OEM anti-counterfeit visual inspection — verify Bently Nevada identification, complete 3300/16-11-01-03-00-00-01 marking, front-panel labeling, connectors, PCB construction, and traceability.
2. Configuration-string audit — independently confirm 11 / 01 / 03 / 00 / 00 / 01 against the required installation.
3. Mechanical inspection — examine rack connector, card guides, ejector hardware, meter/display area, and PCB edges for damage or deformation.
4. PCB condition inspection — check for corrosion, contamination, cracked solder joints, overheated components, damaged traces, and unauthorized modifications.
5. Electrical pre-screening — verify continuity, isolation, grounding, and relay-contact integrity before energization.
6. Power-on self-test (POST) — install the monitor in an approved 3300 rack and verify normal initialization and status indications.
7. Transducer-input simulation — apply controlled signals to both proximity-input channels using compatible 200 mV/mil transducer simulation.
8. Full-scale verification — confirm the configured 0–100 µm peak-to-peak measurement range and scaling.
9. Gap-voltage test — establish representative probe gaps and verify correct negative DC gap response and measurement scaling.
10. Dynamic vibration testing — apply controlled vibration signals across representative frequencies and verify stable amplitude measurement.
11. 2X trip-multiply verification — apply a controlled test condition and confirm the expected multiplied measurement response without exposing connected machinery to an uncontrolled trip.
12. Quad-relay testing — independently exercise applicable relay paths and verify pickup, release, contact state, and logic.
13. Recorder-output testing — verify configured +4–20 mA, 0 to -10 VDC, or +1 to +5 VDC output behavior at representative values.
14. Channel-independence testing — activate Channel A and Channel B independently and confirm no unintended cross-channel interaction.
15. Alarm simulation — verify Alert/Danger and gap-alarm behavior against the stored plant configuration.
16. Extended operating test — monitor signal stability, relay behavior, LED status, thermal behavior, and intermittent faults.
17. Final QC release — photograph the identification, retain channel-by-channel test data, document configuration settings, use ESD-safe packaging, and preserve traceability.

Bently Nevada’s manual provides dedicated procedures for channel alarm testing, gap-alarm testing, OK-limit testing, and calibration. Those procedures are more appropriate for acceptance than a simple power-up check.

Module 6: Procurement & Lifecycle FAQ

Q1. Is BENTLY 3300/16-11-01-03-00-00-01 genuinely in stock, and what is the cutoff for emergency shipping?
Exact availability should be confirmed against the complete configuration, quantity, condition, and destination before PO release. Public industrial listings show this configuration as available from some suppliers, while the broader 3300/16 family is identified as discontinued, so emergency fulfillment should be based on confirmed physical inventory.

Q2. How do you verify the condition and authenticity of an obsolete 3300/16?
Require complete configuration verification, OEM marking inspection, PCB and connector examination, electrical screening, powered rack testing, dual-channel vibration simulation, gap-voltage verification, quad-relay testing, recorder-output testing, and alarm simulation. The exact configuration string should remain attached to the test record.

Q3. Are there any firmware compatibility issues engineers should check before issuing the PO?
The more important issue is configuration compatibility. Preserve the existing full-scale range, transducer type, relay configuration, barrier status, trip multiply setting, jumpers, alarm setpoints, and transducer power arrangement before replacing the monitor. The manual specifically notes that transducer power must match the installed sensor family.

Q4. Can another 3300/16 configuration replace 3300/16-11-01-03-00-00-01?
Not automatically. Changing the configuration fields can alter measurement range, sensor compatibility, relay hardware, approvals, barriers, or trip multiply. The complete six-field configuration should be matched before substitution.

Q5. What warranty and return terms should procurement require?
Require a written warranty period, DOA criteria, return-authorization process, serial/part-number traceability, and exclusions for incorrect wiring, incorrect transducer power, field modification, or unsuitable configuration. The quotation should identify the complete 3300/16-11-01-03-00-00-01 configuration and supplied condition.