Bentley 3300/16-04-01-01-00-00-04 Product Description

I. Product Introduction

The Bentley 3300/16-04-01-01-00-00-04 is a XY/GAP dual vibration monitoring module of the 3300 series from Bently Nevada (now part of Baker Hughes). It is specifically designed for industrial critical rotating machinery and can simultaneously monitor dual-channel radial vibration and average shaft position (gap). It is an upgraded replacement model for the 3300/15 dual radial vibration monitor, with an added radial position gap alarm function. It is widely used in state monitoring and protection of steam turbines, compressors, fans, pumps, etc., capable of identifying faults such as imbalance, misalignment, and abnormal bearing gap in advance, avoiding catastrophic failure of the equipment.

II. Basic Information

Manufacturer: Bently Nevada (American brand)

Product Series: 3300 Series

Product Model: 3300/16-04-01-01-00-00-04

Product Type: Dual-channel vibration monitoring module (XY/GAP type)

Core Functions: Dual-channel radial vibration monitoring, average shaft position (gap) monitoring,分级 alarm and danger protection， analog output

Compatible Sensors： Compatible with 3300 8mm， 3300 XL 8mm， and 7200 5mm/8mm series proximity probes / preamplifier systems， standard sensitivity 200mV/mil (8V/mm)

Installation Method： Standard 19-inch rack-mounted installation， compatible with 3300 system cabinets

Weight： Approximately 180g

Size： 100mm × 76mm × 30mm

Protection Level： Complies with CE certification， strong resistance to radio frequency interference (RFI) and electromagnetic interference (EMI)

III. Functions and Positioning

Dual-channel independent monitoring： Integrated with two completely independent channels， capable of simultaneously monitoring the X and Y directions of radial vibration of the same equipment， or the vibration parameters of two different equipment. Signals between channels do not interfere with each other， and data is independently processed and alarms are independently output.

Vibration and gap dual-parameter monitoring： Simultaneously measure the amplitude of radial vibration and the voltage of shaft - bearing gap， calculate the average shaft position， making up for the deficiency of traditional monitors that only measure vibration， and comprehensively reflect the operating status of the shaft system， providing early warnings for bearing wear， gap over-limit， etc.

分级 alarm protection： Equipped with "Alert" and "Danger" two levels of alarms， each channel threshold can be customized through the panel or upper computer software； when an alarm occurs， the corresponding LED indicator lights up， and at the same time， the relay is triggered to output， which can be linked to shutdown or external alarm systems.

Standard analog output： Each channel is equipped with a 4-20mA DC analog signal output， which can be directly connected to PLC/DCS systems， enabling remote data collection and centralized monitoring.

Channel bypass and fault self-diagnosis： Supports single/double channel bypass operation. During equipment maintenance or sensor calibration， alarms can be temporarily shielded； built-in OK status monitoring circuit， real-time detection of sensor breakage， short circuit， abnormal signals， and module faults. When a fault occurs， the OK indicator light goes out， facilitating rapid troubleshooting.

Signal buffering output： Provides buffered sensor signal output， which can be connected to oscilloscopes， data acquisition instruments， etc.， for on-site debugging， signal calibration， or in-depth fault analysis.

IV. Core Performance Parameters

(1) Input Parameters

Input Signal： Compatible with gap voltage signals from proximity probes / preamplifier systems (-24Vdc reference)

Input Channels： 2 channels (A channel， B channel)

Input Impedance： 10kΩ， high impedance design to avoid signal attenuation Sensitivity: Fixed at 200mV/mil (8V/mm), compatible with mainstream probe systems

(II) Frequency Response (User Programmable)

High-frequency mode: 4 - 4000Hz (240 - 240000 cpm), -3dB bandwidth, suitable for high-speed rotating machinery

Low-frequency mode: 1 - 600Hz (60 - 36000 cpm), -3dB bandwidth, suitable for low-speed equipment; not recommended for equipment with start-stop rate exceeding 1000rpm/s

(III) Measurement Range (Model Customization: 04)

Vibration amplitude: 0 - 600μm (peak - peak), accuracy ±1% of full scale

Gap voltage: -2 - -22Vdc, accuracy ±0.1Vdc

Display Resolution: 0.1μm (vibration), 0.1Vdc (gap)

(IV) Power Supply Parameters

Power Supply Voltage: User programmable - 18Vdc or - 24Vdc, single module independent current-limiting protection

Power Consumption: Nominal ≤ 2W, maximum ≤ 5W

Power Supply Stability: Can operate normally when voltage fluctuation is ±10%

(V) Alarm and Relay (Model Customization: 01)

Alarm Type: Warning (Alert), Danger, each channel independently set

Relay Configuration: Standard epoxy resin sealed type warning + danger relay, contact capacity 24Vdc/1A, normally open / normally closed selectable

Alarm Delay: 0 - 10 seconds programmable, gap alarm fixed delay 6 seconds to avoid instantaneous interference causing false alarm

(VI) Output Signal (Model Customization: 01)

Analog Output: Each channel 4-20mA DC signal corresponding to 0 - full scale vibration value, suitable for PLC/DCS systems

Buffer Output: Standard sensor signal buffer output for on-site debugging and calibration

(VII) Environmental Parameters

Operating Temperature: -40℃ - +70℃

Storage Temperature: -52℃ - +105℃

Relative Humidity: 5% - 95% (no condensation)

(VIII) Interface and Display

Display: Front panel LED digital tube, can switch to display A/B channel vibration values, gap voltage

Indicator Lights: OK (normal), Bypass (bypass), Alert (warning), Danger (danger), each channel independently configured

Communication: Supports RS-485 interface, can be connected to the upper computer of 3300 system to achieve remote parameter configuration, data reading and alarm monitoring

VII. Model Code Explanation (3300/16-04-01-01-00-00-04)

3300: Product series code

16: Dual vibration monitor (XY/GAP type)

04: Full-scale range of vibration (04 corresponds to 0 - 600μm peak - peak)

01: Sensor input type (01 corresponds to 3300/7200 series probes, 200mV/mil)

01: Alarm Relay Configuration (01 corresponds to epoxy resin sealed type warning + danger relay)

00: Certification Option (00 corresponds to no special industry certification)

00: Safety Barrier Option (00 corresponds to no built-in safety barrier)

04: Special Function Customization (04 corresponds to backup monitor, without SIM/SIRM functions)

VIII. Applicable Equipment Fields

Electric Power Industry: Steam turbines, generators, boiler draft fans / supply fans

Petrochemical Industry: Centrifugal compressors, screw compressors, high-temperature pumps, catalytic cracking units

Metallurgical Industry: Rolling mills, blast furnace blowers, dust removal fans

Water Treatment: Large circulating pumps, sewage pumps

Others: State monitoring and protection of high-speed rotating machinery, key power equipment Installation: Standard 19-inch rack installation. Module spacing ≥ 20mm to ensure heat dissipation; During wiring, strictly distinguish between channels A/B, positive and negative power terminals, and analog output terminals. Avoid reverse connections.

Calibration: Regularly (suggested every 6 months) calibrate channels in conjunction with the 3300 XL probe. Lock parameters after calibration to prevent accidental operations; Gap voltage needs to be calibrated to the linear range (-10 to -18 Vdc).

Maintenance: Keep the panel clean. Avoid dust and oil from entering the modules; Regularly check the wiring terminals to prevent loosening; When there is a fault, prioritize troubleshooting the sensor and wiring, then test the module itself.

Note: Low-frequency mode (1 to 600Hz) is not suitable for rapid start-stop equipment; otherwise, it may cause distortion of monitoring data; The analog output wiring should be away from strong electrical lines to avoid electromagnetic interference.