Bently Nevada 3500/44-01-00 3500/44M Aeroderivative GT Vibration Monitor

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Manufacturer: Bently Nevada
Product No.: 3500/44-01-00
Country of origin:United States
Product Type: Vibration Monitors
Payment: T/T, Western Union
Weight: 2500g
Dimensions: 241.3 mm x 24.4 mm x 241.8 mm
Shipping port: Xiamen
Warranty: 12 months

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Description

The 3500/44-01-00 is a four-channel machinery protection instrument designed specifically for aeroderivative gas turbine applications. This module provides continuous machinery monitoring by comparing processed vibration parameters against user-configured alert and danger setpoints to drive dedicated alarms. The 3500/44M system interfaces with Velomitor sensors and accelerometers through specialized interface modules, supporting critical operations and maintenance data communications within a standard 3500 rack framework.

Features

Four-channel continuous vibration monitoring optimized for aeroderivative gas turbines.
Support for three configurable filter options: Signal Integration, 1X vibration tracking, and Band-pass vibration.
Dual Keyphasor inputs allowing independent tracking filters for each channel pair.
Multimode channel configuration supporting up to eight distinct sets of alarm parameters for varied machine modes.
Front panel diagnostic LEDs for OK, TX/RX, and Bypass status indication.
Short-circuit protected coaxial buffered transducer outputs for each channel on the front panel.

Applications

Aeroderivative gas turbine vibration protection.
Machinery conditional monitoring and predictive maintenance data logging.
High-accuracy industrial tracking filter applications.

Ordering Information

Option Code	Description
3500/44	Aeroderivative Monitor
A: 01	Aero GT I/O Module with Internal Terminations
B: 00	Hazardous Area Approval Option: None

Technical Specifications

Category	Specification	Data
Electrical	Power Consumption	7.7 Watts, typical
	Input Impedance (Aero GT I/O)	Greater than 95 kΩ (Proximitor and acceleration inputs)
	Input Impedance (Prox/Velom I/O)	10 kΩ for Prox/Accel, 3.5 MΩ for Velomitor
	Output Impedance (Buffered)	550 Ω
	Transducer Power Supply	23 Vdc nominal at 43 mA max
	Recorder Outputs	+4 to +20 mA, proportional to full-scale
	Voltage Compliance	0 to +12 Vdc range across load resistance of 0 to 600 Ω
Dynamic Performance	Resolution	0.3662 uA per bit
	Accuracy	±0.25% error at room temperature, ±0.7% error over temperature range
	Update Rate	100 ms or less
	Frequency Response (Aeroderivative)	4 Hz to 30 kHz, -3 dB (Exclusive of filters)
	High-Pass Filter Corner	25, 75 or 100 Hz (-3 dB); 10-pole, 200 dB per decade
	Low-Pass Filter Corner	200 Hz (-3 dB); 10-pole, 200 dB per decade
	Tracking Filter Range	Valid for machine speeds of 60 to 240,000 cpm
	Alarm Accuracy	Within 0.13% of the desired value
Physical / Mechanical	Main Board Dimensions	241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
	Main Board Weight	0.91 kg (2.0 lb)
	I/O Module Dimensions	241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
	I/O Module Weight	0.45 kg (1.0 lb)
	User Stated Total Weight	2.5 Kg
	Rack Space (Main Module)	1 full-height front slot
	Rack Space (I/O Module)	1 full-height rear slot
	Origin	Made in U.S.A
	Manufacturer	Bently Nevada

Installation Guidelines

Rack Mounting: The main monitor module must be installed in a single full-height front slot of the 3500 rack. The paired Aero GT I/O module with internal terminations must be secured directly behind it in the corresponding full-height rear slot.
Wiring and Terminations: Direct wiring connections should be made to the designated terminals on the internal termination block of the rear I/O module. Ensure all sensor shields are properly grounded at the chassis ground lugs provided on the rack frame.
Filter Configuration: System configuration must be programmed via the 3500 Rack Configuration Software to assign the proper integration, tracking, or band-pass filters based on sensor type and machine specifications.

Compliance and Certifications

FCC: Complies with part 15 of the FCC Rules.
EMC: European Community Directive 2014/30/EU; Standards EN 61000-6-2 (Immunity), EN 61000-6-4 (Emissions).
Electrical Safety: European Community Directive 2014/35/EU; Standard EN 61010-1.
Maritime: DNV GL rules for classification (Ships, offshore units); ABS Rules for Condition of Classification Part 1.
RoHS: European Community Directive 2011/65/EU.
China RoHS: Cable EFUP designation of 15 years in accordance with SJ/T 11364-2024.

Key Features:

#3500/44M #Vibration Monitors

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

What sensor inputs are compatible with the 3500/44M-01-00 monitor?

The module interfaces with Velomitor sensors and industrial accelerometers via authorized Bently Nevada interface modules.

How many Keyphasor references can this specific module accept?

It accepts up to two separate Keyphasor signals, which allows each pair of channels to run an independent vibration tracking filter.

What does the -01 selection specify under the ordering matrix?

The -01 option indicates the installation of the Aero GT I/O module configured with internal terminations for field sensor wiring.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Silver
Country of origin	United States

Bently Nevada 3500/44-01-00 3500/44M Aeroderivative GT Vibration Monitor