Bently 3300/SS-03-01-05-05-00-00-01-00 Dual-channel Vibration Monitoring Module Detailed Product Description

I. Product Overview

The Bently 3300/SS-03-01-05-05-00-00-01-00 is a high-performance dual-channel vibration monitoring module of the 3300/SS series from Bently Nevada under Baker Hughes. It is an upgraded and enhanced version of the 3300 classic TSI (turbo-generator monitoring instrument) system, specifically designed for critical rotating machinery to provide high-frequency and high-precision radial vibration and shaft position monitoring. This model is a standard configuration, with high-frequency response, enhanced signal processing, dual-channel relay output, universal certification, with isolated safety barrier version, widely used in high-speed units in industries such as power, petrochemicals, metallurgy, and gas turbines, providing continuous online monitoring, fault diagnosis, and safety interlock protection, in accordance with API 670 Fourth Edition standard.

II. Model Decoding (3300/SS-03-01-05-05-00-00-01-00)

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

SS: Superior Series, enhanced high-performance series, optimized signal processing and anti-interference capability;

03: Function code, dual-channel radial vibration monitoring module, specifically for shaft vibration measurement, compatible with eddy current probes;

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

05: Frequency response, 1–1000 Hz (60–60,000 CPM), compatible with high-speed, variable-frequency, gas turbine units;

05: Input/Output configuration, dual-channel isolated analog output + dual-channel independent alarm relays, enhanced isolation design;

00: Certification level, basic CE + industrial EMC certification, suitable for general industrial environments;

00: Safety barrier configuration, built-in isolated safety barrier, compatible with Zone 2 explosion-proof area;

01: Display and operation, with high-brightness LED status indication + simple local key configuration;

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

III. Core Functions

Dual-channel independent high-precision monitoring: Two completely independent inputs, compatible with 3300 XL 8 mm eddy current probes, accurately measure radial vibration peak-to-peak, effective value, and peak, support synchronous collection of dynamic vibration and static shaft position;

High-frequency wide signal processing: 1–1000 Hz frequency response, covers the fundamental frequency and harmonic vibrations of high-speed units (such as gas turbines, centrifugal compressors), captures high-frequency fault characteristics;

Multiple-level alarms and interlocks: Each channel independently sets warning (ALERT) and danger (DANGER) levels, supports vibration over-limit, signal abnormality, probe fault alarm, relay contacts directly connected to the unit interlock circuit;

Intelligent fault diagnosis (OK circuit): Built-in probe/cable fault monitoring circuit, accurately distinguishes real vibration faults, probe breakage / short circuit, signal out-of-tolerance, power abnormality, effectively prevents false shutdown;

Enhanced anti-interference design: Input/output/power triple electrical isolation, built-in electromagnetic shielding layer, strong anti-EMI/RFI interference capability, suitable for industrial strong electromagnetic environment;

Standard industrial signal output: Backplane provides **-1~-17 VDC isolated analog **, can be directly connected to DCS/PLC system; Each channel has an independent relay output (passive dry contacts), suitable for alarms and interlocks;

Flexible parameter configuration: range, sensitivity, frequency response, alarm threshold, alarm delay (0–10 seconds adjustable), signal filtering, etc. parameters are supported by local buttons or remote software configuration;

Intrinsically safe explosion-proof adaptation: built-in isolated safety barrier, limiting output energy, can directly connect Zone 2 hazardous area probes, no additional configuration of safety barrier required.

IV. Technical Parameters

(1) Measurement Parameters

Number of channels: 2 independent (CH1, CH2);

Vibration range: 0–2 mm (0–80 mil) peak-to-peak;

Sensitivity: 8 V/mm (200 mV/mil), linear error ≤ ±0.5% FS;

Frequency response: 1–1000 Hz (-3 dB), high-frequency flat response;

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

Alarm delay: 0–10 seconds programmable (default 3 seconds);

Accuracy: vibration ±0.5% FS, axis position ±1% FS;

Resolution: 0.001 mm (high precision mode);

Signal filtering: low pass / high pass / band pass selectable, default 1000 Hz low pass.

(2) Electrical Parameters

Power supply: -24 VDC (±10%), programmable to -18 VDC; power consumption ≤ 2.5 W;

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

Analog output: -1 to -17 VDC isolation, output impedance 100 Ω, linear error ≤ ±0.2% FS;

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

Signal isolation: 2500 Vrms isolation between input / output / power supply, anti-common-mode interference;

Safety barrier: built-in intrinsically safe isolated safety barrier, suitable for Zone 2 explosion-proof area, compliant with ATEX/IECEx standards.

(3) Environmental and Mechanical Parameters

Operating temperature: -40℃ to +70℃ (wide temperature design);

Storage temperature: -40℃ to +85℃;

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

Installation: 3300 standard 19-inch rack slot, supports hot swapping, no need to stop the machine for module replacement;

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

Weight: approximately 1.2 kg;

Protection level: IP20 (in the rack);

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

(V) Certification and Compliance

Electromagnetic compatibility: CE (EN 61000-6-2/4), industrial-grade EMC certification;

Industry standards: API 670 Fourth Edition (petrochemical machinery protection standard);

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

Quality system: ISO 9001 certification.

V. Structural Design

(1) Rack-mounted modular architecture

Compatible with 3300 series standard rack (4–14 slots), directly inserted into vacant slots, supports hot swapping, module replacement without stopping the machine, convenient maintenance. Front panel integrates high-brightness LED status lights (OK, ALERT, DANGER, BYPASS) and simple operation buttons; The back panel layout is clear, including probe input terminals, analog output terminals, relay contact terminals, power interface, and wiring is convenient.

(II) Dual-channel independent circuit design

Two signal paths are processed by completely independent circuits, without interference, to avoid crosstalk between channels. Each path includes signal conditioning unit, linearization unit, high-frequency filtering unit, alarm comparison unit, and OK monitoring unit. The circuit has high stability and low failure rate.

(III) Enhanced anti-interference and reliability design

Triple electrical isolation for input/output/power, with built-in electromagnetic shielding layer, effectively suppressing EMI/RFI interference in industrial sites; OK circuit monitors probe, cable, and preamplifier faults in real time, quickly identifying abnormalities and alarming; wide temperature design, suitable for harsh industrial environments; metal casing is shock-resistant and corrosion-resistant, extending service life.

(IV) Intrinsically safe explosion-proof safety design

Built-in isolation safety barrier, strictly limiting output energy, can directly connect Zone 2 hazardous area's eddy current probes, meeting explosion-proof safety requirements, without additional safety barrier configuration, reducing cost and installation complexity.

Six, System Compatibility

(II) Hardware Compatibility

Compatible with 3300 series chassis (3300/05), power module (3300/12/13), system monitoring module (3300/03);

Compatible with 3300 XL 8 mm eddy current probes, extension cables, preamplifiers, components can be interchangeable, no need for separate calibration;

Analog output compatible with mainstream DCS/PLC systems (such as Siemens, Honeywell, Yokogawa);

Relay contact compatible with alarm lights, buzzers, interlock circuits;

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

(III) Software Compatibility

Support System 1 status monitoring software, enabling real-time data collection, trend analysis, fault diagnosis, historical data storage and report generation;

Compatible with 3300 series configuration software, can remotely configure module parameters, calibrate probes, view alarm logs;

Support local button configuration, no software required to complete basic parameter settings.

VII. Typical Application Scenarios

Power Industry: High-frequency vibration monitoring of thermal power / nuclear power gas turbines, steam turbines, generators, feedwater pumps, capture high-speed unit high-frequency vibration faults;

Petrochemical Industry: Vibration protection of centrifugal compressors, process turbines, large pump sets, flare gas compressors, suitable for Zone 2 explosion-proof area;

Metallurgical Industry: Vibration monitoring and fault warning of blast furnace fans, large motors, rolling mill transmission high-speed rotating equipment;

General Industry: Paper, cement, pharmaceutical industry's key high-speed rotating equipment's preventive maintenance, online monitoring and safety interlock protection.

VIII. Installation and Maintenance

(II) Installation Key Points

Module installation: Insert the module into the vacant slot of the 3300 chassis, ensure the back panel connector is in good contact, and fix the panel screws;

Probe installation: 3300 XL 8 mm probe is installed vertically on the shaft diameter, the static gap is set to 1.27 mm (standard value), the probe cable is firmly fixed to avoid vibration wear;

Wiring standard: Probe cable is connected to the module's CH1/CH2 input terminals, analog output is connected to DCS/PLC, relay contact is connected to alarm/interlock circuits, wiring is firm without loosening;

Power-on configuration: Connect the 24 VDC power supply of the chassis, through local buttons or configuration software set the range, alarm threshold, filtering parameters, alarm delay, and save parameters for effect.

(III) Daily Maintenance

Regular inspection: Daily check the LED status lights on the front panel (OK always on indicates normal, ALERT/DANGER lights on indicate alarm), the tightness of the wiring terminals, and the heat dissipation condition of the module; Annual Calibration: Use standard gap blocks to calibrate vibration and shaft position accuracy every year to ensure the measurement error is ≤ ±0.5% FS;

Cleaning and Dust Removal: Clean the module panel and rack slots quarterly to maintain good heat dissipation and avoid dust accumulation causing short circuits;

Spare Parts Management: Use original 3300 XL probes, extension cables, and modules to avoid measurement deviations or failures caused by non-original components.

IX. Usage Notes

High-frequency Compatibility Requirements: 1–1000 Hz high-frequency response. Do not use for low-frequency and low-speed units (such as rotational speed < 600 RPM), to avoid low-frequency signal distortion;

Probe Matching Specifications: Must be paired with the 3300 XL 8 mm eddy current probe system. Do not mix 5 mm/11 mm probes; otherwise, the range and sensitivity will not match;

Explosion-proof Area Limitation: The built-in safety barrier is only suitable for Zone 2 hazardous areas. For Zone 0/1 areas, additional explosion-proof measures are required. Do not use beyond the range;

Gap Installation Standards: The static gap of the probe must be strictly installed at 1.27 mm. Installing too close may cause shaft collision and wear, while installing too far will result in weak signals and poor linearity.