What is the 126623-01?

It is the Aeroderivative Gas Turbine (Aero GT) I/O module for the Bently Nevada 3500/44M monitor.

What is the primary use of the 126623-01?

It receives vibration and speed sensor signals from aeroderivative gas turbines.

What is the wiring method for the 126623-01?

It uses the external terminations wiring method.

How many parts do you have in stock?

We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies. If you are unable to find what you are looking for then don’t panic.

Do you offer global delivery services?

Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.

126623-01

Name: 126623-01
Brand: Bently Nevada
SKU: 126623-01

Aero GT I/O Module External Terminations

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

Bently Nevada 3500/44M
Aero GT Vibration I/O Module
(External Terminations)
with Euro-Style or Terminal Strip Connectors

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Technical specifications for 126623-01

Manufacturer:

Bently Nevada
Product Category:

Machinery Monitoring Systems
Spare Part Number:

126623-01
Estimated shipping dimensions:

2.5x11x24cm
Weight:

0.38 kg
Tariff Code:

8537101190
Counliy of origin:

USA
System Series:

3500 Machinery Protection System
Compatible Main Monitor:

3500/44M Aeroderivative GT Vibration Monitor
Termination Type:

External Terminations (ET)
Operating Temperature Range:

-30°C to +65°C

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Information

Overview Manuals Common Applications Product Precautions

The 126623-01 is a 3500/44M Aeroderivative Gas Turbine Vibration Monitor for monitoring vibration in aeroderivative gas turbine applications. It supports multiple vibration measurement methods, interfaces with velocity transducers, Velomitor sensors, and accelerometers, and provides continuous machinery protection by monitoring critical vibration parameters and generating alarms when preset limits are exceeded.

Flexible Monitoring: Supports signal integration, 1X tracking, and band-pass filtering
Reliable Protection: Compares values with alarm setpoints for early warnings
High Availability: Supports TMR configurations and multimode operation

The 3500/44M Aeroderivative Gas Turbine Vibration Monitor is developed for aeroderivative gas turbines used in critical industrial processes. It is compatible with vibration monitoring systems for Rolls-Royce (RB211, Avon), GE (LM1600, LM2500, LM5000, LM6000), and United Technologies (GG3, G44, FT4, FT8) gas turbines.

The monitor accepts dual Keyphasor® inputs, allowing different tracking filters for each channel pair, and can be configured with multiple alarm parameter sets to automatically adapt to different operating modes. In Triple Modular Redundant (TMR) systems, three adjacent monitors operate with voting logic to improve system integrity and eliminate single-point failures, making the module well suited for high-reliability gas turbine monitoring and machinery protection systems.

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

Bently Nevada 126623-01 Aero GT I/O Module External Terminations Manuals, Datasheets, Drivers, Link

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

Natural Gas Pipeline Transmission

Monitors casing vibration of aeroderivative gas turbine-driven centrifugal compressors in long-distance pipeline boosting stations.

Offshore Oil & Gas Platforms

Provides continuous protection for gas turbines driving main power generators and high-pressure water injection pumps on space-constrained offshore platforms.

Thermal Power Plants

Used for critical bearing vibration monitoring of gas turbines in peaking power plants or steam turbines in combined-cycle units.

Petrochemical & Oil Refineries

Protects large catalytic cracking air blowers driven by high-reliability gas turbines in heavy oil fcc or ethylene plants.

Mining & Ore Smelting

Monitors gas turbines in captive power plants of remote mining areas supplying electricity for heavy crushers and smelting furnaces.

Aviation Engine Test Cells

Receives and records vibration signals under high-speed rotation during performance testing of overhauled aeroderivative gas turbines or commercial aircraft engines.

When using the 126623-01 module, the rack power must be turned off during installation or removal to prevent hardware damage. External terminal and cable connections must remain securely tightened to withstand field vibrations, and the sensor cable shield must be grounded at a single end to eliminate electromagnetic interference.

Additionally, channel parameters must be synchronized via configuration software after installation to ensure monitoring accuracy.

Technical notes

126623-01 works with Bently Nevada interface modules 86517 and 86497 to receive high-sensitivity velocity transducer signals for aeroderivative gas turbines.

FAQ View All FAQ

What is the 126623-01?

It is the Aeroderivative Gas Turbine (Aero GT) I/O module for the Bently Nevada 3500/44M monitor.
What is the primary use of the 126623-01?

It receives vibration and speed sensor signals from aeroderivative gas turbines.
What is the wiring method for the 126623-01?

It uses the external terminations wiring method.

How many channels does the 126623-01 support?

It supports 4 sensor channels.
How many parts do you have in stock?

We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies. If you are unable to find what you are looking for then don’t panic.
Do you offer global delivery services?

Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.

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