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Bently Nevada 3500/44 176449-03 Velocity Monitor
Manufacturer: Bently Nevada
Product Number: 3500/44 (176449-03)
Category: Velocity Monitor / 4-Channel Velocity Monitor
Number of Channels: 4
Input Signal Types: Velocity pickups, accelerometers
Measurement Range: 0–50 mm/s RMS (typical)
Frequency Response: 3 Hz – 1 kHz
Outputs: 4-20 mA per channel, relay alarms
Product Description
The Bently Nevada 3500/44 Velocity Monitor is a four-channel machinery protection and condition-monitoring module designed for use within the 3500 Series rack system. It is engineered to continuously measure and monitor casing velocity or absolute shaft vibration signals from seismic transducers such as Velomitor sensors or accelerometers.
The 3500/44 processes vibration data in real time, comparing measured amplitudes against configured Alert and Danger thresholds to provide both protection and diagnostic outputs. Each pair of channels can be independently configured to perform different measurement functions, allowing a single module to support multiple monitoring applications within one rack slot.
This module is widely used in rotating machinery such as turbines, compressors, motors, and pumps where precise vibration monitoring is required for reliability, safety, and predictive maintenance.
Key Features
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Four independent velocity monitoring channels.
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Compatible with Bently Nevada Velomitor and other seismic sensors.
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Real-time protection with alarm and trip logic.
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Configurable channel pairs for flexible measurement setup.
-
Compatible with all 3500 Series racks and communication modules.
-
Compact design for high-density control cabinet installation.
-
Internal signal filtering and conditioning for high accuracy.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 3500/44 (176449-03) | Four-channel Velocity Monitor |
| Function | Monitors casing or structure vibration velocity | Accepts velocity or acceleration sensor inputs |
| Number of Channels | 4 channels (configured in pairs) | Each pair can be independently set up |
| Input Types | Velocity transducers (Velomitor), accelerometers | AC-coupled signal input |
| Input Impedance | 10 kΩ typical | Ensures precise sensor signal measurement |
| Power Consumption | Approximately 7.5 W typical | Nominal for standard 3500 configuration |
| Frequency Response | 4 Hz–4 kHz (−3 dB typical) | For velocity input configuration |
| Measurement Range | Configurable via software | Supports standard Bently Nevada calibration ranges |
| Alert / Danger Setpoints | Programmable per channel | Provides independent alarms per measurement type |
| Output Signals | 4–20 mA, relay trip, and rack data bus | Compatible with 3500 Data Interface Modules |
| Operating Temperature | −30 °C to +65 °C | Industrial environment rating |
| Storage Temperature | −40 °C to +85 °C | Non-operating condition |
| Rack Requirements | One full-height front slot and one rear slot | Standard 3500 Series architecture |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Compact modular design |
| Weight | Approx. 0.46 kg (1.01 lb) | Lightweight for easy installation |
| Mounting Type | Plug-in rack module | Front and rear module configuration |
| Housing Material | Aluminum alloy enclosure | Ensures EMI/RFI protection |
| Compliance | CE, CSA, ATEX (depending on variant) | Meets industrial standards |
| Country of Origin | United States (Minden, Nevada, USA) | Manufactured by Bently Nevada, Baker Hughes |
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Bently Nevada 3500/44 176449-03 Velocity Monitor
Manufacturer: Bently Nevada
Product Number: 3500/44 (176449-03)
Category: Velocity Monitor / 4-Channel Velocity Monitor
Number of Channels: 4
Input Signal Types: Velocity pickups, accelerometers
Measurement Range: 0–50 mm/s RMS (typical)
Frequency Response: 3 Hz – 1 kHz
Outputs: 4-20 mA per channel, relay alarms
Product Description
The Bently Nevada 3500/44 Velocity Monitor is a four-channel machinery protection and condition-monitoring module designed for use within the 3500 Series rack system. It is engineered to continuously measure and monitor casing velocity or absolute shaft vibration signals from seismic transducers such as Velomitor sensors or accelerometers.
The 3500/44 processes vibration data in real time, comparing measured amplitudes against configured Alert and Danger thresholds to provide both protection and diagnostic outputs. Each pair of channels can be independently configured to perform different measurement functions, allowing a single module to support multiple monitoring applications within one rack slot.
This module is widely used in rotating machinery such as turbines, compressors, motors, and pumps where precise vibration monitoring is required for reliability, safety, and predictive maintenance.
Key Features
-
Four independent velocity monitoring channels.
-
Compatible with Bently Nevada Velomitor and other seismic sensors.
-
Real-time protection with alarm and trip logic.
-
Configurable channel pairs for flexible measurement setup.
-
Compatible with all 3500 Series racks and communication modules.
-
Compact design for high-density control cabinet installation.
-
Internal signal filtering and conditioning for high accuracy.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Model Number | 3500/44 (176449-03) | Four-channel Velocity Monitor |
| Function | Monitors casing or structure vibration velocity | Accepts velocity or acceleration sensor inputs |
| Number of Channels | 4 channels (configured in pairs) | Each pair can be independently set up |
| Input Types | Velocity transducers (Velomitor), accelerometers | AC-coupled signal input |
| Input Impedance | 10 kΩ typical | Ensures precise sensor signal measurement |
| Power Consumption | Approximately 7.5 W typical | Nominal for standard 3500 configuration |
| Frequency Response | 4 Hz–4 kHz (−3 dB typical) | For velocity input configuration |
| Measurement Range | Configurable via software | Supports standard Bently Nevada calibration ranges |
| Alert / Danger Setpoints | Programmable per channel | Provides independent alarms per measurement type |
| Output Signals | 4–20 mA, relay trip, and rack data bus | Compatible with 3500 Data Interface Modules |
| Operating Temperature | −30 °C to +65 °C | Industrial environment rating |
| Storage Temperature | −40 °C to +85 °C | Non-operating condition |
| Rack Requirements | One full-height front slot and one rear slot | Standard 3500 Series architecture |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 163.1 mm (9.50 in × 0.96 in × 6.42 in) | Compact modular design |
| Weight | Approx. 0.46 kg (1.01 lb) | Lightweight for easy installation |
| Mounting Type | Plug-in rack module | Front and rear module configuration |
| Housing Material | Aluminum alloy enclosure | Ensures EMI/RFI protection |
| Compliance | CE, CSA, ATEX (depending on variant) | Meets industrial standards |
| Country of Origin | United States (Minden, Nevada, USA) | Manufactured by Bently Nevada, Baker Hughes |
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