Bently Nevada 3500/44M 140734-03 Mechanical monitoring module

Specific Parameters

3500/44M Monitoring Module
Electrical Parameters
Supply Voltage: 5V DC ±5% (provided by 3500 system frame)
Input Channels: 4 independent differential inputs, compatible with eddy current sensors and analog signals
Signal Types:
Vibration: Acceleration (0-50g), Velocity (0-500mm/s), Displacement (0-2000μm)
Position: Shaft displacement (-500μm to +500μm), Differential expansion (0-50mm)
Auxiliary: Rotational speed (0-30000rpm), Temperature (-50°C to +200°C, 4-20mA input)
Measurement Accuracy: ±0.05% full scale (vibration/position); ±0.1% full scale (speed/temperature)
Resolution: 24-bit A/D conversion
Sampling Rate: 2048 points/sec/channel (4-channel synchronous sampling supported)
Output Signals: 4×4-20mA analog outputs, 4×Form-C relay outputs (250V AC/30V DC, 5A resistive load)
Communication Interface: 3500 system backplane bus (100Mbps)
Protection Functions: Overvoltage protection (≤30V DC), short circuit protection, 3kV AC inter-channel isolation protection
Power Consumption: ≤10W under normal operation
Environmental Parameters
Operating Temperature: 0°C to 65°C
Storage Temperature: -40°C to 85°C
Relative Humidity: 5% to 95% (non-condensing, no dew formation)
EMC Immunity: Compliant with EN 61326-1 (industrial grade), IEC 61000-4-6
Vibration Resistance: 10-500Hz, 2g acceleration (compliant with IEC 60068-2-6)
140734-03 Dedicated Shielded Connection Cable
Electrical Parameters: Shielded twisted pair structure, impedance 100Ω±10%, transmission bandwidth ≥10MHz
Transmission Performance: Signal attenuation ≤0.5dB/10m (1kHz), common mode rejection ratio ≥120dB
Mechanical Parameters: Outer diameter 7mm, weight 0.12kg/m, oil-resistant flame-retardant PVC sheath (UL 94 V-0 grade)
Compatibility: Dedicated connectors at both ends, direct connection between module and terminal board
Overall Mechanical Parameters
Module Dimensions: 40mm (W) × 160mm (H) × 225mm (D)
Module Weight: Approximately 550g
Mounting Method: 3500 system frame standard slot mounting
Protection Class: IP20 (module itself)
Housing Material: Flame-retardant aluminum alloy (UL 94 V-0 grade)

Product Performance

The kit adopts 24-bit high-precision A/D conversion chip and anti-aliasing filter circuit, with vibration signal measurement error ≤0.05% and shaft displacement resolution up to 0.05μm, enabling accurate capture of early equipment fault characteristics. The synchronous sampling rate of 2048 points/sec/channel, combined with 10kHz spectrum analysis capability, can fully record high-frequency impact vibration and rotational speed fluctuation signals.

Integrated with intelligent fault diagnosis engine, built-in 12 typical fault models such as unbalance, misalignment and oil film whirl, fault identification accuracy ≥95%, response time ≤5ms, and rapid triggering of equipment interlock via relay output. Data transmission delay with 3500 system main controller is ≤3ms, supporting online parameter configuration, fault recording (up to 200 events) and firmware upgrade through System 1 software, without shutdown for maintenance.

Channel-level 3kV AC isolation design combined with dedicated shielded cable provides common mode rejection ratio ≥120dB, effectively resisting strong electromagnetic interference and ground loops in industrial sites. Wide temperature adaptability and reinforced structure design ensure overall mean time between failures (MTBF) ≥350,000 hours, fully adapting to the high-reliability monitoring needs of key rotating equipment.

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