Fortune Dcs

Bently Nevada 3500/42M 176449-01 Front-end seismic monitor

Wed, 03 Jun 2026 23:06:04 +0800

Product Introduction

The Bently Nevada 3500/42M (Part Number 176449-01) is a 4‑Channel Displacement / Velocity / Acceleration Monitor from the 3500 Series machinery protection system. The “M” designation indicates an enhanced version with improved signal processing, additional diagnostic capabilities, and expanded input flexibility compared to the standard 3500/42. This monitor accepts inputs from proximity probes (eddy‑current), seismic accelerometers, and velocity transducers. It conditions these signals to provide continuous, real‑time monitoring of radial vibration, axial (thrust) position, eccentricity, and acceleration on critical rotating machinery. The 176449-01 variant typically includes isolated inputs, programmable signal conditioning (peak‑to‑peak, zero‑to‑peak, RMS), and advanced alarm logic (Alert and Danger per channel). The module communicates with other 3500 rack components via the internal backplane and occupies one full‑height slot.

Parameters

Parameter	Specification
Model / Part Number	3500/42M 176449-01
Product Type	4‑Channel Displacement / Velocity / Acceleration Monitor (Enhanced)
Number of Input Channels	4 (independent, configurable)
Input Types	Proximity probe (3300 XL), seismic accelerometer (IEPE), velocity transducer
Signal Processing	Peak‑to‑peak, zero‑to‑peak, RMS, programmable per channel
Alarm Outputs	Alert and Danger per channel (programmable, via backplane to relay modules)
Recorder Outputs	4 channels (4‑20 mA, isolated)
Buffered Outputs	BNC on front panel (dynamic transducer signal)
Frequency Response (proximity)	0 to 10 kHz
Frequency Response (seismic)	0.5 Hz to 10 kHz (depending on sensor)
Slot Width	1 full‑height slot in 3500 rack
Dimensions (W × H × D)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)
Weight	0.45 kg (1.0 lb)
Operating Temperature	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing
Accuracy	±0.1% of full scale
Input Impedance (proximity)	10 kΩ
Isolation	1500 Vrms channel‑to‑channel and channel‑to‑ground
Certifications (typical)	CSA, ATEX, IECEx (for safe area rack installation)

Application Scenarios

Radial Vibration Monitoring on Turbomachinery – Installed on steam turbines, gas turbines, and centrifugal compressors in power plants and refineries to measure shaft‑relative vibration (using proximity probes) and casing vibration (using accelerometers). Detects imbalance, misalignment, bearing wear, and rubs.
Axial (Thrust) Position Measurement – Monitors rotor displacement on compressors, turbines, and large pumps to prevent thrust bearing overload and rotor‑stator contact. The enhanced “M” version provides faster response and more precise setpoints.
Shaft Eccentricity and Differential Expansion – Used during machine startup and coast‑down on generators and large turbines to measure shaft bow and thermal growth, enabling safe passage through critical speeds.
Multi‑Parameter Protection in Hazardous Areas – The isolated inputs and robust design allow simultaneous connection of proximity probes (for shaft motion) and accelerometers (for casing vibration) on the same machine, e.g., in oil & gas offshore platforms.
Integration with 3500 Series Systems – Works seamlessly with 3500/32 relay modules for trip logic, 3500/22 TDI for transient data capture, and 3500/15 power supplies. The 4‑20 mA recorder outputs interface directly with plant DCS or PLC for trending and alarming.

Bently Nevada 3500/15 127610-01+125840-01 AC power module

Wed, 03 Jun 2026 22:58:22 +0800

Product Introduction

The Bently Nevada 3500/15 series comprises power supply modules for the 3500 Series machinery protection system. The combination of 127610-01 and 125840-01 represents two independent power supply modules designed for redundant and input‑diverse configurations. Both modules are full‑height units that occupy the dedicated power supply slots (the leftmost two slots) in a 3500 rack. They convert incoming line power into regulated +24 VDC for the rack backplane and all installed monitor modules.

127610-01 – High‑voltage AC power supply (universal input, suitable for 110–220 VAC mains)
125840-01 – Low‑voltage DC power supply (nominal 24 VDC, for battery or DC‑bus backup)

When installed together, the system gains 1+1 redundancy (if both receive power) and input source diversity (AC + DC). If one supply fails or its input source is lost, the other continues to power the rack without interruption. Each module has independent overvoltage, overcurrent, and short‑circuit protection.

Parameters

Parameter	127610-01 (AC Supply)	125840-01 (DC Supply)
Model / Part Number	127610-01	125840-01
Product Type	3500/15 High‑Voltage AC Power Supply	3500/15 Low‑Voltage DC Power Supply
Input Voltage Range	85 to 264 VAC (nominal 110–220 VAC)	18 to 36 VDC (nominal 24 VDC)
Input Frequency	47 to 63 Hz	N/A
Output Voltage	+24 VDC (regulated)	+24 VDC (regulated)
Output Power	350 W continuous	350 W continuous
Efficiency	> 85%	> 85%
Redundancy	Hot‑swappable, parallel operation	Hot‑swappable, parallel operation
Protection Features	Overvoltage, overcurrent, short‑circuit, overtemperature	Same
Slot Width (each)	1 full‑height slot in 3500 rack	1 full‑height slot
Dimensions (each module)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)	Same
Weight (each module)	1.2 kg (2.65 lbs)	1.2 kg (2.65 lbs)
Total Combined Weight	2.4 kg (5.3 lbs)
Operating Temperature	0 to +65 °C (32 to +149 °F)	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing	5% to 95% non‑condensing
Cooling	Convection (no internal fan)	Convection (no internal fan)
Certifications (typical)	CSA, ATEX, IECEx (safe area)	CSA, ATEX, IECEx (safe area)

Application Scenarios

Redundant Power with Diverse Sources – Installed together in the same 3500 rack to provide 1+1 redundancy while also diversifying input power: the 127610-01 connects to plant AC mains, and the 125840-01 connects to a DC battery bank or uninterruptible power supply (UPS) DC bus. This ensures the 3500 system remains operational even during an AC failure or DC supply drop.
High‑Availability Machinery Protection – Used on critical turbines, compressors, and generators in refineries, chemical plants, and offshore platforms where a single power failure cannot be allowed to shut down protection monitoring.
Remote or Unstable Power Environments – Ideal for locations with unreliable AC mains (e.g., remote pumping stations, mines, or mobile drilling rigs) where a DC battery backup is already present. The DC supply rides through brownouts or short interruptions.
Retrofit for Redundancy – Upgrades existing 3500 racks that originally had a single power supply. Adding the complementary AC or DC module converts the system to redundant operation without changing the rack backplane.
Global Compatibility (AC Supply) – The 127610-01 accepts any AC voltage from 85 to 264 VAC, eliminating the need for voltage selector switches and simplifying deployment worldwide.

Bently Nevada 3500/15 127610-01+125840-01 AC power module

Wed, 03 Jun 2026 22:58:22 +0800

Product Introduction

127610-01 – High‑voltage AC power supply (universal input, suitable for 110–220 VAC mains)
125840-01 – Low‑voltage DC power supply (nominal 24 VDC, for battery or DC‑bus backup)

Parameters

Parameter	127610-01 (AC Supply)	125840-01 (DC Supply)
Model / Part Number	127610-01	125840-01
Product Type	3500/15 High‑Voltage AC Power Supply	3500/15 Low‑Voltage DC Power Supply
Input Voltage Range	85 to 264 VAC (nominal 110–220 VAC)	18 to 36 VDC (nominal 24 VDC)
Input Frequency	47 to 63 Hz	N/A
Output Voltage	+24 VDC (regulated)	+24 VDC (regulated)
Output Power	350 W continuous	350 W continuous
Efficiency	> 85%	> 85%
Redundancy	Hot‑swappable, parallel operation	Hot‑swappable, parallel operation
Protection Features	Overvoltage, overcurrent, short‑circuit, overtemperature	Same
Slot Width (each)	1 full‑height slot in 3500 rack	1 full‑height slot
Dimensions (each module)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)	Same
Weight (each module)	1.2 kg (2.65 lbs)	1.2 kg (2.65 lbs)
Total Combined Weight	2.4 kg (5.3 lbs)
Operating Temperature	0 to +65 °C (32 to +149 °F)	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing	5% to 95% non‑condensing
Cooling	Convection (no internal fan)	Convection (no internal fan)
Certifications (typical)	CSA, ATEX, IECEx (safe area)	CSA, ATEX, IECEx (safe area)

Application Scenarios

Redundant Power with Diverse Sources – Installed together in the same 3500 rack to provide 1+1 redundancy while also diversifying input power: the 127610-01 connects to plant AC mains, and the 125840-01 connects to a DC battery bank or uninterruptible power supply (UPS) DC bus. This ensures the 3500 system remains operational even during an AC failure or DC supply drop.
High‑Availability Machinery Protection – Used on critical turbines, compressors, and generators in refineries, chemical plants, and offshore platforms where a single power failure cannot be allowed to shut down protection monitoring.
Remote or Unstable Power Environments – Ideal for locations with unreliable AC mains (e.g., remote pumping stations, mines, or mobile drilling rigs) where a DC battery backup is already present. The DC supply rides through brownouts or short interruptions.
Retrofit for Redundancy – Upgrades existing 3500 racks that originally had a single power supply. Adding the complementary AC or DC module converts the system to redundant operation without changing the rack backplane.
Global Compatibility (AC Supply) – The 127610-01 accepts any AC voltage from 85 to 264 VAC, eliminating the need for voltage selector switches and simplifying deployment worldwide.

Bently Nevada 3500/33 133388-01+133396-01 16-channel relay module

Wed, 03 Jun 2026 22:55:11 +0800

Product Introduction

The Bently Nevada 3500/33 (Part Numbers 133388-01 and 133396-01) is a 16‑Channel Relay Module for the 3500 Series machinery protection system. The combination consists of the main relay module (133388-01) and a matching internal termination board (133396-01) that provides screw‑terminal connections for field wiring. The module provides 16 independent, programmable relay outputs that can be used for alarming, shutdown, or control logic based on data received from other 3500 monitors (e.g., vibration, position, speed, temperature). Each relay can be configured for latching or non‑latching operation, normally energized or de‑energized states, and can be assigned to any combination of alarm conditions across the rack. The 3500/33 occupies one full‑height slot in a 3500 rack and is compliant with API 670.

Parameters

Parameter	Specification
Relay Module (133388-01)
Model / Part Number	3500/33 133388-01
Product Type	16‑Channel Relay Module
Number of Relays	16 (independent, form C)
Contact Rating	5 A at 240 Vac / 30 Vdc (resistive)
Relay Output Options	Latching or non‑latching, normally energized or de‑energized, programmable
Input Source	Internal 3500 backplane (data from monitor modules)
Slot Width	1 full‑height slot in 3500 rack
Dimensions (W × H × D)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)
Weight (module only)	0.9 kg (2.0 lbs)
Termination Board (133396-01)
Part Number	133396-01
Function	Internal termination / barrier strip for field wiring (16 channels)
Connector Type	Removable screw terminals (accepts up to 16 AWG wire)
Dimensions (W × H × D)	19.0 × 76.2 × 50.8 mm (0.75 × 3.0 × 2.0 in) (approx.)
Weight (board only)	0.1 kg (0.22 lb)
Combined Weight	1.0 kg (2.2 lbs)
Operating Temperature	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing
Response Time	< 50 ms (typical)
Certifications (typical)	CSA, ATEX, IECEx (for safe area rack installation)

Application Scenarios

Multi‑Parameter Alarm and Shutdown – Used on steam turbines, gas turbines, centrifugal compressors, and large generators where multiple independent protection functions (vibration, thrust, temperature, speed) must each trigger dedicated relays for annunciation or trip logic.
High‑Density Relay Applications – Provides 16 relays in a single slot, saving rack space compared to using multiple 4‑channel 3500/32 modules. Ideal for large machinery trains with many monitored points.
Voting Logic (1‑out‑of‑2, 2‑out‑of‑3) – Relays can be configured in software to implement redundant voting schemes for critical applications such as overspeed protection in nuclear plants or offshore platforms.
Direct Control of External Systems – Drives plant DCS, PLC, emergency shutdown systems (ESD), or audible/visual annunciator panels with dry contact closures from each relay.
Retrofit of Legacy Relay Panels – Replaces older 3300 series relay modules or discrete relay logic panels in existing 3500 racks, simplifying wiring and allowing software‑based configuration of alarm logic without hardware changes.

Bently Nevada 170133-050-00 Built-in dual proximity sensor module troubleshooting guide

Wed, 03 Jun 2026 22:53:00 +0800

Product Introduction

The Bently Nevada 170133-050-00 is a high‑quality extension cable designed for use with 1700 series accelerometers and vibration monitors (e.g., 1701/06). It connects an IEPE (Integrated Electronics Piezo‑Electric) accelerometer or velocity sensor to a monitoring device, such as a 1700 series rack or a portable data collector. The cable features a robust, flexible jacket with excellent noise rejection, ensuring reliable transmission of dynamic vibration signals in industrial environments. The -050 suffix indicates a length of 5.0 meters (16.4 feet), and the -00 suffix denotes a standard configuration with no special approvals (suitable for general purpose, non‑hazardous areas). One end is typically fitted with a MIL‑C‑5015 style connector (or M8/M12 depending on variant) for sensor connection, and the other end with a BNC or SMA connector for the monitor.

Parameters

Parameter	Specification
Model / Part Number	170133-050-00
Product Type	Extension cable for accelerometer / vibration sensor
Cable Length	5.0 m (16.4 ft)
Connector Type (Sensor end)	MIL‑C‑5015 style (2‑pin) or M8 male (depending on order)
Connector Type (Monitor end)	BNC male (standard) or SMA
Impedance	50 Ω (nominal)
Shielding	Braided copper + foil (dual shield)
Cable Outer Diameter	4.2 mm (0.165 in)
Dimensions (length only)	5.0 m overall length
Weight (approx.)	0.25 kg (0.55 lb)
Operating Temperature	–40 °C to +125 °C (–40 °F to +257 °F)
Jacket Material	Polyurethane (PUR) – oil, chemical, and abrasion resistant
Minimum Bend Radius	25 mm (1.0 in)
Capacitance	90 pF/m (typical)
Approval Code	-00 (General purpose / safe area only)

Application Scenarios

Extending Sensor Reach – Used when a vibration sensor (accelerometer) must be mounted farther from its monitor than the sensor’s built‑in pigtail cable allows. The 5.0 m length is ideal for medium‑distance runs in pump houses, compressor skids, or fan decks.
Connecting to 1700 Series Monitors – Links a 100 mV/g accelerometer to a 1701/06 vibration monitor, enabling continuous 4‑20 mA output and relay alarming for non‑critical machinery protection.
Portable Data Collection – Provides a convenient extension between a handheld data collector (e.g., CSI, Commtest) and a permanently mounted accelerometer on a motor, pump, or fan, allowing safe, remote measurement.
Temporary Test Setups – Used during commissioning or troubleshooting to connect test accelerometers to diagnostic instruments (oscilloscope, FFT analyzer) without permanent wiring.
General Industrial Environments – Suitable for steel mills, paper plants, food processing, and HVAC equipment where reliable, noise‑resistant signal transmission is required in non‑hazardous areas.

Bently Nevada 170133-050-00 Built-in dual proximity sensor module troubleshooting guide

Wed, 03 Jun 2026 22:53:00 +0800

Product Introduction

Parameters

Parameter	Specification
Model / Part Number	170133-050-00
Product Type	Extension cable for accelerometer / vibration sensor
Cable Length	5.0 m (16.4 ft)
Connector Type (Sensor end)	MIL‑C‑5015 style (2‑pin) or M8 male (depending on order)
Connector Type (Monitor end)	BNC male (standard) or SMA
Impedance	50 Ω (nominal)
Shielding	Braided copper + foil (dual shield)
Cable Outer Diameter	4.2 mm (0.165 in)
Dimensions (length only)	5.0 m overall length
Weight (approx.)	0.25 kg (0.55 lb)
Operating Temperature	–40 °C to +125 °C (–40 °F to +257 °F)
Jacket Material	Polyurethane (PUR) – oil, chemical, and abrasion resistant
Minimum Bend Radius	25 mm (1.0 in)
Capacitance	90 pF/m (typical)
Approval Code	-00 (General purpose / safe area only)

Application Scenarios

Extending Sensor Reach – Used when a vibration sensor (accelerometer) must be mounted farther from its monitor than the sensor’s built‑in pigtail cable allows. The 5.0 m length is ideal for medium‑distance runs in pump houses, compressor skids, or fan decks.
Connecting to 1700 Series Monitors – Links a 100 mV/g accelerometer to a 1701/06 vibration monitor, enabling continuous 4‑20 mA output and relay alarming for non‑critical machinery protection.
Portable Data Collection – Provides a convenient extension between a handheld data collector (e.g., CSI, Commtest) and a permanently mounted accelerometer on a motor, pump, or fan, allowing safe, remote measurement.
Temporary Test Setups – Used during commissioning or troubleshooting to connect test accelerometers to diagnostic instruments (oscilloscope, FFT analyzer) without permanent wiring.
General Industrial Environments – Suitable for steel mills, paper plants, food processing, and HVAC equipment where reliable, noise‑resistant signal transmission is required in non‑hazardous areas.

Bently Nevada 1701/06 141377-01 Isolated terminal guide

Wed, 03 Jun 2026 22:49:14 +0800

Product Introduction

The Bently Nevada 1701/06 (Part Number 141377-01) is a General Purpose Vibration Monitor from the 1700 series. It is a compact, single‑slot monitor designed for continuous, online protection of non‑critical or general‑purpose rotating machinery. The module accepts input from a single seismic accelerometer or velocity transducer (IEPE type) and provides a 4‑20 mA output proportional to overall vibration level (RMS or peak). It also includes two programmable alarm relays (Alert and Danger) for local annunciation or machine shutdown. The 1701/06 is typically mounted in a 1700 series rack (e.g., 1701/03) or can be used as a stand‑alone panel‑mount monitor with an optional housing. This variant (141377-01) includes a standard 0–1 in/s (0–25.4 mm/s) velocity range, 4‑20 mA output, and dual relay outputs.

Parameters

Parameter	Specification
Model / Part Number	1701/06 141377-01
Product Type	General Purpose Vibration Monitor (1 channel)
Series	1700 Series
Input Channel	1 (IEPE accelerometer or velocity sensor)
Input Sensitivity	100 mV/g (typical)
Measurement Parameter	Velocity (RMS or peak)
Full Scale Range	0 to 1.0 in/s (0 to 25.4 mm/s) – configurable
Output Signal	4‑20 mA (loop‑powered or self‑powered)
Alarm Outputs	2 relays (Form C): Alert and Danger
Relay Contact Rating	3 A at 240 VAC / 30 VDC
Frequency Response (±3 dB)	10 Hz to 1 kHz (standard)
Power Supply	18–30 VDC (loop or external)
Slot Width	1 slot in 1700 series rack
Dimensions (W × H × D)	30 × 100 × 120 mm (1.18 × 3.94 × 4.72 in)
Weight	0.25 kg (0.55 lb)
Operating Temperature	–20 °C to +65 °C (–4 °F to +149 °F)
Storage Temperature	–40 °C to +85 °C (–40 °F to +185 °F)
Humidity	5% to 95% non‑condensing
Compliance	CE, RoHS

Application Scenarios

Non‑Critical Pumps and Fans – Continuous vibration monitoring on centrifugal pumps, axial fans, and blowers in HVAC, water treatment, and light industrial plants, providing early warning of imbalance or bearing wear.
Small Electric Motors – Installed on motors up to 500 HP to detect misalignment, looseness, or rotor bar problems, triggering alarms before failure.
Packaged Compressors – Used on reciprocating or screw compressors in manufacturing facilities to monitor casing vibration and prevent costly downtime.
Retrofit of Legacy Systems – Replaces outdated analog vibration switches (e.g., 1‑out‑of‑2) with a programmable monitor that offers 4‑20 mA trending and adjustable setpoints.
Stand‑Alone Machine Protection – Can be used without a full rack by mounting the module in a small enclosure, ideal for protecting isolated machinery in remote locations or on mobile equipment.

Bently Nevada 3500/32 125720-01 4-channel relay module

Wed, 03 Jun 2026 22:45:40 +0800

Product Introduction

The Bently Nevada 3500/32 (Part Number 125720-01) is a 4‑Channel Relay Module for the 3500 Series machinery protection system. It provides programmable alarm and shutdown outputs based on monitored parameters such as vibration, position, speed, or temperature. The module features four independent relays, each with dedicated setpoints and logic, and can be configured for latching or non‑latching operation, as well as normally energized or de‑energized states. The 125720-01 variant typically includes standard relay outputs with specific approval options (e.g., CSA, ATEX for safe area) and is fully compatible with the 3500 rack’s internal communication backplane. The module occupies one full‑height slot in a 3500 rack.

Parameters

Parameter	Specification
Model / Part Number	3500/32 125720-01
Product Type	4‑Channel Relay Module
Number of Relays	4 (independent, form C)
Contact Rating	5 A at 240 Vac / 30 Vdc (resistive)
Relay Output Options	Latching or non‑latching, normally energized or de‑energized
Input Source	Internal 3500 backplane (data from monitor modules)
Module Slot Width	1 full‑height slot in 3500 rack
Dimensions (W × H × D)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)
Weight	0.68 kg (1.5 lbs)
Operating Temperature	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing
Response Time	< 50 ms (typical)
Approval Options (typical)	CSA, ATEX, IECEx – for safe area rack installation

Application Scenarios

Alarm and Shutdown Logic – Installed in 3500 racks to trigger audible/visual alarms or initiate machine shutdown when vibration, axial position, or temperature exceeds user‑defined Alert and Danger setpoints.
Protection of Turbomachinery – Used on steam turbines, gas turbines, centrifugal compressors, and large pumps to provide reliable relay outputs for emergency trip systems (ETS).
Channel Voting and Redundancy – Can be configured for 1‑out‑of‑2 or 2‑out‑of‑3 voting schemes in critical applications (e.g., nuclear power plants, offshore platforms) to prevent nuisance trips while ensuring safety.
Remote Indication and Control – Drives external annunciator panels, PLC inputs, or plant DCS systems with dry contact closures for machinery status.
Retrofit and Upgrade – Replaces older 3500/32 versions or relay modules from earlier Bently Nevada systems (e.g., 7200 series) in power generation, oil & gas, and heavy industrial facilities.

Bently Nevada 330905-00-10-10-02-05 3300 NSv eddy current probe

Wed, 03 Jun 2026 22:42:54 +0800

Product Introduction

The Bently Nevada 330905-00-10-10-02-05 is a 3300 XL Side‑Exit Accelerometer (piezoelectric, IEPE type) designed for measuring absolute casing vibration on rotating machinery. Unlike proximity probes which measure shaft‑relative motion, this accelerometer mounts directly on bearing housings or machine casings to detect bearing wear, imbalance, misalignment, and gear mesh faults. The “side‑exit” (right‑angle) cable orientation allows installation in tight spaces where top‑exit accelerometers cannot fit. The -05 suffix indicates hazardous area approvals (ATEX, CSA, IECEx Zone 0/1/2, gas and dust). The integral cable length is 1.0 meter (suffix -10), terminated with a miniature coaxial connector (option -02) for direct connection to 3500/42M or 3500/60 monitors, or to junction boxes.

The part number breaks down as:

330905 – 3300 XL Side‑Exit Accelerometer (100 mV/g sensitivity)
00 – Standard mounting thread (1/4‑28 UNF)
10 – Integral cable length: 1.0 m (39.4 in)
10 – Cable termination: Miniature coaxial male (Mini‑Type)
02 – Optional configuration (e.g., filtered output or special response)
05 – Hazardous area approvals (ATEX, CSA, IECEx Zone 0/1/2)

The accelerometer is constructed from stainless steel with a hermetically sealed housing, making it suitable for harsh industrial environments.

Parameters

Parameter	Specification
Model / Part Number	330905-00-10-10-02-05
Product Type	3300 XL Side‑Exit Accelerometer (IEPE)
Sensitivity	100 mV/g (±10%)
Measurement Range	±50 g (peak)
Frequency Response (±3 dB)	0.5 Hz to 10 kHz
Frequency Response (±10%)	1 Hz to 5 kHz
Mounting Thread	1/4‑28 UNF (standard)
Integral Cable Length	1.0 m (39.4 in)
Connector Type	Miniature coaxial male (Mini‑Type)
Approval Code	-05 (ATEX, CSA, IECEx Zone 0, 1, 2; gas and dust)
Dimensions (housing only)	Height: 35 mm (1.38 in); Width: 22 mm (0.87 in); Depth: 22 mm (0.87 in)
Cable Outer Diameter	3.5 mm (0.14 in)
Total Weight (accelerometer + 1.0 m cable)	Approx. 0.12 kg (0.26 lb)
Operating Temperature	–50 °C to +120 °C (–58 °F to +248 °F)
Shock Limit	5000 g (peak)
Base Strain Sensitivity	< 0.1 g/µε (microstrain)
Output Bias Voltage	10 to 14 VDC
Excitation Current (IEPE)	2 to 10 mA (constant current, typical 4 mA)
Housing Material	316L stainless steel
Hermetic Seal	Yes (laser welded)

Application Scenarios

Bearing Housing Vibration Monitoring – Mounted directly on rolling element bearing housings of motors, pumps, fans, and compressors to detect early bearing faults, imbalance, and looseness in hazardous areas (refineries, chemical plants, offshore platforms). The -05 approval permits installation in Zone 0/1/2 explosive atmospheres.
Gearbox and Casing Vibration – Used on gearboxes, small steam turbines, and gas turbine casings where absolute vibration measurement is required. The side‑exit design allows mounting in narrow clearances between flanges or adjacent components.
Integration with 3500 Series Monitors – The 4‑20 mA output (via a 3500/60 or 3500/42 monitor with accelerometer input) provides continuous protection data to the 3500 rack, enabling programmable Alert/Danger alarms and shutdown logic.
Condition Monitoring in Petrochemical Plants – Installed on critical pumps, blowers, and reciprocating compressors to provide real‑time casing vibration trends, supporting predictive maintenance and reducing unplanned downtime.
Hard‑to‑Access Locations – The side‑exit cable orientation and compact stainless steel housing (22 × 22 mm footprint) allow installation in tight spaces, such as between motor windings, inside bearing cover bolts, or on small auxiliary machinery where standard top‑exit accelerometers would interfere with adjacent hardware.
Replacement of Legacy Accelerometers – Directly replaces older Bently Nevada 3300 or 7200 series accelerometers (e.g., 330700 series) while providing improved temperature range, hazardous area certification, and compatibility with modern 3500 rack inputs.

Bently Nevada 3500/15 129486-01+129478-01 AC/DC power module

Wed, 03 Jun 2026 22:40:17 +0800

Product Introduction

The Bently Nevada 3500/15 series comprises power supply modules for the 3500 Series machinery protection system. The combination 129486-01 + 129478-01 represents two independent power supply modules designed for redundant or diverse voltage input configurations. Both modules are full‑height units that occupy the dedicated power supply slots (the leftmost two slots) in a 3500 rack. They convert incoming AC or DC line power into regulated +24 VDC for the rack backplane and all installed monitor modules.

129486-01 – High‑voltage AC power supply (nominal 110–220 VAC, wide range 85–264 VAC)
129478-01 – Low‑voltage DC power supply (nominal 24 VDC, range 18–36 VDC)

When installed together, the two modules provide input voltage diversity (AC + DC) and redundancy (if both receive suitable power). If one supply fails or its input source is lost, the other continues to power the rack without interruption. Each module has independent overvoltage, overcurrent, and short‑circuit protection.

Parameters

Parameter	129486-01 (AC Power Supply)	129478-01 (DC Power Supply)
Model / Part Number	129486-01	129478-01
Product Type	3500/15 High‑Voltage AC Power Supply	3500/15 Low‑Voltage DC Power Supply
Input Voltage Range	85 to 264 VAC (nominal 110–220 VAC)	18 to 36 VDC (nominal 24 VDC)
Input Frequency	47 to 63 Hz	N/A
Output Voltage	+24 VDC (regulated)	+24 VDC (regulated)
Output Power	350 W continuous	350 W continuous
Efficiency	> 85%	> 85%
Redundancy	Hot‑swappable, parallel operation with other 3500/15 modules	Same
Protection	Overvoltage, overcurrent, short‑circuit, overtemperature	Same
Slot Width	1 full‑height slot (each)	1 full‑height slot (each)
Dimensions (each module)	24.9 × 241.3 × 218.4 mm (0.98 × 9.50 × 8.60 in)	Same
Weight (each module)	1.2 kg (2.65 lbs)	1.2 kg (2.65 lbs)
Total Combined Weight	2.4 kg (5.3 lbs)
Operating Temperature	0 to +65 °C (32 to +149 °F)	0 to +65 °C (32 to +149 °F)
Storage Temperature	–40 to +85 °C (–40 to +185 °F)	–40 to +85 °C (–40 to +185 °F)
Humidity	5% to 95% non‑condensing	5% to 95% non‑condensing
Cooling	Convection (no internal fan)	Convection (no internal fan)
Certification	CSA, ATEX, IECEx (safe area)	CSA, ATEX, IECEx (safe area)

Application Scenarios

Redundant Power with Diverse Input Sources – Installed in the same 3500 rack (slots 1 and 2) to provide 1+1 redundancy. The AC supply (129486-01) connects to plant utility power, while the DC supply (129478-01) connects to a backup battery bank or emergency DC bus. This ensures continuous 3500 rack operation even if one input source fails – critical for offshore platforms, remote pumping stations, and nuclear power plants.
High‑Availability Machinery Protection – Protects turbines, compressors, and generators in refineries and chemical plants where unplanned shutdowns carry severe financial or safety risks. Redundant power eliminates single point of failure.
Global Voltage Compatibility (AC Supply) – The 129486-01 automatically accepts any AC voltage from 85 to 264 VAC, making it suitable for worldwide installation without jumper changes.
DC‑Only Installations – When only 24 VDC battery power is available (e.g., on ships, substations, or certain industrial control panels), the 129478-01 provides a dedicated DC‑to‑DC conversion with high efficiency.
Retrofit and Replacement – Replaces older 3500/15 power supplies (e.g., 125840-01 or 125800-01) while maintaining the same footprint and connector compatibility, allowing seamless upgrades to redundant or mixed‑input configurations.