Bently Nevada 176449-03

Ordering Information

Aeroderivative Monitor

3500/44-AA-BB

A: I/O Module Type

01  Aero GT I/O Module with Internal Terminations

02  Aero GT I/O Module with External Terminations

05  Prox/Velom I/O Module with Internal Terminations

06  Prox/Velom I/O Module with External Terminations

07  Multimode Prox/Velom I/O Module with Internal Terminations

08  Multimode Prox/Velom I/O Module with External Terminations

B: Hazardous Area Approval Option

00  None

01  cNRTLus(Class 1, Division 2)

02  ATEX/IECEx/CSA(Class 1, Zone 2)

Technical Parameters

Channels: 4 high-speed vibration inputs for Bently Nevada 176449-03

Input Types: IEPE accelerometers (4 mA loop-powered) or ±10 V voltage-mode accelerometers (jumper-selectable per channel)

Bandwidth: DC to 10 kHz (–3 dB) with programmable low-pass filters at 1, 2, 5, or 10 kHz

Resolution & Accuracy: 24-bit ΔΣ ADC; ± 0.05 % of full scale

Sampling Rate: 10 kHz per channel, simultaneous synchronized acquisition in Bently Nevada 176449-03

Signal Conditioning:

Built-in constant-current excitation for IEPE (4 mA)

Overvoltage protection to ± 35 V; reverse-polarity clamp

Programmable gain settings (×1, ×2, ×5, ×10)

Isolation: ≥ 1 kV channel-to-chassis ground

Data Output: Real-time digital streaming over the 3500 backplane bus with time stamping to 1 µs precision

Power Consumption: 24 V DC (18–32 V DC), ≤ 6 W total

Environmental:

Operating Temp: –20 °C to +70 °C

Storage Temp: –40 °C to +85 °C

Humidity: up to 95 % RH, non-condensing

Product function

High-Fidelity Vibration Capture: Provides precise measurement of bearing and casing vibration via Bently Nevada 176449-03 for imbalance and fault detection.

Transient-Event Recording: Captures and time-stamps high-speed events during startups and transients.

Online Balancing Support: Outputs narrow-band and broadband vibration channels to aid field balancing.

Protection Logic Integration: Streams data to system interface for threshold comparisons in < 2 ms.

Application Areas

Aeroderivative Gas Turbines: Frame 5, LM 2500/6000 requiring high-speed analytics with Bently Nevada 176449-03.

Peaking & Backup Power: Units with frequent start/stops needing early fault detection.

Mechanical Drive Compressors: High-speed drivers in petrochemical applications.

Retrofit and Upgrades: Replacing legacy monitors using Bently Nevada 176449-03 for improved reliability.

Condition-Based Maintenance: Enabling trend analytics for turbine fleets.