BENTLY NEVADA 3500/44M 4- channel vibration monitor

Original price was: $3,450.00.Current price is: $1,788.00.

BENTLY NEVADA 3500/44M is a 4- channel vibration monitor, especially designed for aeroderivative gas turbines, which can continuously monitor vibration levels, trigger alarms based on setpoints, and ensure the safe operation of machinery through advanced filtering and mode – switching functions.

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Category: Bently Nevada

Description

Parameter	Value
Model Number	3500/44M
Product Type	Vibration Monitor for Aeroderivative Gas Turbines
Manufacturer	BENTLY NEVADA
Input Channels	1 – 4 (connected via aero GT or Prox/Velom I/O modules)
Input Impedance	> 95 kΩ (accel/Prox), 3.5 MΩ (Velomitor)
Power Consumption	7.7 W (typical)
Sensitivity Options	100 mv / in / s, 145 mv / in / s, 100 mv / g, 25 mv / g, 10 mv / g
Buffered Outputs	1 coax per channel, 550 Ω output impedance
Transducer Power Supply	23 VDC @ 43 mA max
Recorder Outputs	4 – 20 mA, 0.3662 µA / bit, max load 600 Ω
Update Rate	100 ms or less
Voltage Compliance	0 – 12 VDC across load
Operating Modes	1x tracking, band – pass, signal integration
Alarm Modes	Up to 8 sets of alerts/dangers per channel (multimode)
Frequency Response	– Direct signal: 4 Hz to 30,000 Hz (-3 dB) – Integrated velocity: 18 Hz to 5500 Hz (-3 dB) – Non – integrated acceleration: 4 Hz to 30,000 Hz (-3 dB) – Integrated acceleration: 18 Hz to 14,500 Hz (-3 dB) – Bias low – pass filter: 0.01 Hz (-3 dB)
Bandpass Filter	– Low – pass cut – off frequency: configurable between 100 Hz and 5500 Hz (-3 dB) – High – pass cut – off frequency: configurable between 10 Hz and 1000 Hz (-3 dB) – Roll – off: 8 – pole 160 dB per decade, 48 dB per octave
Tracking Filter	Constant q user – configurable; Roll – off: 6 – pole 120 dB per decade, 36 dB per octave
Alarm Setpoints	Adjustable from 0 to 100 % of full – scale (limited by transducer range if exceeds full – scale)
Accuracy	Within ± 0.33 % of full – scale (typical), ± 1 % (maximum)
Cables	Available lengths: 1.5 m, 2.1 m, 3.0 m, 7.6 m, 15.2 m, 30.5 m; Assembled or not assembled options
External Termination Blocks	Euro – style connectors and terminal – strip connectors available
Hazardous Area Approvals	Options include Cnrtl US (Class 1, Division 2) and ATEX/IECEx/CSA (Class 1, Zone 2)
Dimensions	– Monitor module: 241.3 mm×24.4 mm×241.8 mm (9.50 in×0.96 in×9.52 in), weight 0.91 kg (2.0 lb) – I/O module: 241.3 mm×24.4 mm×99.1 mm (9.50 in×0.96 in×3.90 in), weight 0.45 kg (1.0 lb)
Operating Temperature Range	– 30 °C to + 65 °C (-22 °F to + 150 °F)
Storage Temperature Range	– 40 °C to + 85 °C (-40 °F to + 185 °F)
Humidity	5% – 95%, non – condensing
Electromagnetic Compatibility	Complies with EMC Directive 2014/30/EU; Standards: EN 61000 – 6 – 2 (industrial environment immunity), EN 61000 – 6 – 4 (industrial environment emissions)
Safety Standards	Conforms to API 670 and 612 for overspeed protection (as relevant to vibration – related safety in turbine applications)

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About brand

The BENTLY 3500 system is a professional machinery protection and condition monitoring solution widely used in industries like oil and gas, power generation, and petrochemicals. It adopts a modular design, allowing flexible configuration of monitoring modules (e.g., vibration, temperature, and speed modules) to track key operating parameters of rotating equipment such as turbines and compressors. By collecting and analyzing data in real time, it can promptly identify issues like equipment imbalance or bearing wear, trigger alarms or shutdowns when thresholds are exceeded, and effectively prevent unexpected equipment failures to ensure production continuity.