Bentley 3300/16-02-01-01-01-02-00-00 XY / Gap Dual Vibration Monitoring Module Detailed Product Description

I. Product Overview

Bentley 3300/16-02-01-01-01-02-00-00 is a rack-mounted dual-channel vibration and shaft position monitoring module under the Bently Nevada brand of Baker Hughes, used to simultaneously monitor the X/Y bidirectional radial vibration and the average shaft-bearings clearance (shaft position) of rotating machinery. This model is a standard range, low-frequency response, with local display, dual-channel relay output, with safety barrier, non-explosion-proof configuration. It can replace the old 3300/15 (only vibration, no clearance alarm), widely used in steam turbines, gas turbines, centrifugal compressors, generators and other key units in the power, petrochemical, metallurgy and other industries, providing continuous online monitoring, fault warning and safety interlock protection, in accordance with API 670 standards.

II. Model Decoding (3300/16-02-01-01-01-02-00-00)

3300: Bentley 3300 modular TSI system, rack-mounted installation, supports hot swapping and multi-module combination;

16: Function code, XY / Gap Dual Vibration Monitoring Module, dual channels, simultaneously measure vibration and shaft clearance;

02: Range and sensitivity, 0–2 mm (0–80 mil) peak-to-peak, 8 V/mm (200 mV/mil), compatible with 8 mm probe;

01: Frequency response, 1–600 Hz (60–36,000 CPM), compatible with low-speed, variable-frequency units;

01: Display and operation, with local LCD display + LED status lights, can read locally, view alarms and configure;

01: Output configuration, dual isolated analog output + dual alarm relays, independent channel output;

02: Certification and safety, with built-in safety barrier, suitable for intrinsically safe explosion-proof areas (Zone 2);

00: Special functions, no additional customized functions, standard factory configuration.

III. Core Functions

Dual-channel independent monitoring: Two input channels, respectively connected to X and Y eddy current probes, simultaneously measure the peak-to-peak radial vibration and the average shaft-bearings clearance (static position);

Vibration + clearance dual alarm: Each channel independently sets vibration high / extremely high alarm, clearance too large / too small alarm, avoiding shaft rubbing or bearing failure;

Intelligent signal processing: Built-in OK circuit monitoring, can distinguish probe break / short circuit / signal out of tolerance and real vibration faults, preventing false shutdown;

Local display and status indication: LCD real-time display X/Y vibration values, clearance values, alarm status; LED indicates OK (normal), ALERT (warning), DANGER (danger), BYPASS (bypass);

Standard signal output: Backplane provides isolated analog output (-1~-17 VDC), can be connected to DCS/PLC; Each channel is equipped with warning / danger relay contacts, used for interlock protection;

Parameters can be programmed: Range, sensitivity, frequency response, alarm threshold, clearance alarm delay (default 6 seconds) can be set through software or local buttons;

Intrinsically safe compatibility: Built-in safety barrier, can directly connect to Zone 2 hazardous area probes, no additional safety barrier required.

IV. Technical Parameters

(1) Measurement Parameters

Channels: 2 independent (X, Y);

Vibration range: 0–2 mm (0–80 mil) peak-to-peak; Sensitivity: 8 V/mm (200 mV/mil), linear error ≤ ±1% FS;

Gap measurement range: 0.25–2.3 mm (compatible with 8 mm probe);

Frequency response: 1–600 Hz (-3 dB), suitable for low-speed machinery and variable frequency equipment;

Gap alarm delay: 6 seconds (to prevent transient false alarms);

Accuracy: vibration ±0.5% FS, gap ±1% FS;

Resolution: 0.01 mm.

(II) Electrical Parameters

Power supply: -24 VDC (±10%), programmable to -18 VDC; power consumption approximately 2 W;

Probe input: compatible with 3300 XL 8 mm eddy current probe (330101/02/03/04), input impedance 10 kΩ;

Analog output: -1 to -17 VDC isolation, output impedance 100 Ω;

Relay output: 1 channel ALERT (warning) and 1 channel DANGER (danger) per channel, contacts 250 VAC/3A passive dry contacts;

Signal isolation: electrical isolation between input/output/power supply, anti EMI/RFI interference;

Safety barrier: built-in safe barrier, compatible with Zone 2 explosion-proof area.

(III) Environmental and Mechanical Parameters

Operating temperature: -40℃ to +70℃;

Storage temperature: -40℃ to +85℃;

Relative humidity: 0%–95% (no condensation);

Installation: 3300 standard 19-inch rack slot, hot-swappable;

Size: approximately 220 mm (depth) × 120 mm (width) × 83 mm (height);

Weight: approximately 1.1 kg;

Protection: IP20 (in rack);

Shell: metal panel + flame-retardant plastic, shock-resistant, corrosion-resistant.

(IV) Certification and Compliance

Electromagnetic compatibility: CE (EN 61000-6-2/4);

Industry standards: API 670 Fourth Edition;

Explosion-proof certification: ATEX Zone 2 intrinsically safe certification, built-in safety barrier.

V. Structural Design

(1) Rack-mounted modular

Standard 3300 rack compatible, directly inserted into slot, supports hot swapping, no need to stop machine for replacement. Front panel has LCD, LED and operation buttons; back panel has probe input, analog output, relay contacts, power interface, clear layout.

(2) Dual-channel independent circuit

Two signals are completely independent and processed without interference; each channel contains signal conditioning, linearization, alarm comparison, OK monitoring circuits, high stability.

(3) Anti-interference and reliability

Input/output/power isolation; built-in electromagnetic shielding; OK circuit real-time diagnoses probe/cable faults; gap alarm delay 6 seconds, suppresses transient fluctuations false alarms.

(4) Intrinsically safe explosion-proof design

Built-in isolation safety barrier, limits output energy, can directly connect Zone 2 hazardous area probes, meets explosion-proof safety requirements.

VI. System Compatibility

(1) Hardware Compatibility

Compatible with 3300 series racks, power supply (3300/12/13), system monitoring (3300/03);

Compatible with 3300 XL 8 mm eddy current probe and preamplifier;

Analog output connected to DCS/PLC; relay contacts connected to interlock circuits;

Built-in safety barrier, compatible with Zone 2 explosion-proof area probe installation.

(2) Software Compatibility

Support System 1 status monitoring software, realizes data acquisition, trend, diagnosis, historical storage;

Can be set parameters through 3300 configuration software, supports local button configuration.

VII. Typical Application Scenarios Electricity: Monitoring of X/Y vibrations and shaft clearances of steam turbine, generator, and feed pump units for thermal power plants and nuclear power plants to prevent rubbing;

Petroleum: Vibration protection and bearing position monitoring for centrifugal compressors, process turbines, and large pump units, suitable for Zone 2 explosion-proof areas;

Metallurgy: Monitoring of high-temperature blast furnace fans, large motors, and transmission systems of rolling mills;

General Industry: Preventive maintenance and fault warning for critical rotating equipment in papermaking, cement, pharmaceuticals, etc.

VIII. Installation and Maintenance

(1) Installation Key Points

Frame installation: Insert into an empty slot to ensure good contact;

Probe wiring: X and Y probes are connected to corresponding channels respectively. The probes are perpendicular to the axis surface, with an gap of 1.27 mm (standard);

Output wiring: Analog signals are connected to DCS, and relay contacts are connected to alarms/interlocks;

Power-on configuration: Set the range, alarm threshold, and gap limit, and save for effect.

(2) Daily Maintenance

Inspection: Check LCD display, LED status, and wiring tightness;

Calibration: Once a year, calibrate vibration and gap accuracy using a standard gap block;

Cleaning: Regularly clean dust from the panel and slots to maintain good heat dissipation;

Spares: Use original probes, cables, and modules to avoid deviations caused by non-original components.

IX. Usage Precautions

Explosion-proof area adaptation: Built-in safety barrier, only applicable to Zone 2 hazardous areas; Additional explosion-proof measures are required for Zone 0/1 areas;

Probe matching: Must be paired with the 3300 XL 8 mm system; Non-mixing of 5 mm/11 mm probes is required;

Gap setting: Static gap must be installed strictly at 1.27 mm to avoid too close rubbing or too far signal weakness;

Prohibition of modification: Do not privately modify cable length, dismantle modules, or replace non-original components; Otherwise, it will be ineffective and lose warranty;

Power-off operation: Cut off the power supply of the frame when connecting, inspecting, or replacing modules to prevent short circuits / electric shock.