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Bently Nevada 3500/33 149986-01 16-Channel Relay Control Module

The Bently Nevada 3500/33 149986-01 is a 16-channel relay control module used within the 3500 Machinery Protection System.

The module is designed to provide output control based on monitored machine conditions, including:

• High vibration alarms

• Bearing condition alarms

• Overspeed events

• Temperature alarms

• Not-OK conditions

• System status signals

Each relay output can be programmed individually to perform specific alarm or shutdown functions. The built-in Alarm Drive Logic supports AND and OR logic combinations using alarm states, measured variables, and status information from modules installed in the same 3500 rack.

The 3500/33 is commonly installed in machinery protection systems where automatic alarm response and external device control are required. 

Bently Nevada 3500/33 149986-01

Manufacturer:
Bently Nevada

Series:
3500 Machinery Protection System

Part Number:
149986-01

Product Type:
16-Channel Relay Control Module

Module Function:
Relay output and alarm control

Installation:
Bently Nevada 3500 rack

16 Independent Relay Outputs

The 3500/33 provides sixteen separate relay outputs, allowing multiple alarm and control functions to be handled from one module.

Programmable Alarm Logic

Each relay can be configured according to application requirements using:

• Alert conditions

• Danger conditions

• Not-OK status

• Individual measured variables

• Combined channel logic

SPDT Relay Design

The module uses Form C relay contacts, providing flexible normally open and normally closed wiring options for industrial control systems.

Integration with 3500 Protection System

The relay module communicates with other 3500 series monitoring modules and receives alarm information through the system rack architecture.

Industrial Reliability

The relay outputs include protection features such as environmental sealing and arc suppression to improve reliability in industrial applications.

• Provides flexible alarm and shutdown output control

• Supports complex machinery protection logic

• Reduces additional external relay hardware requirements

• Improves response speed during abnormal machine conditions

• Integrates directly with Bently Nevada 3500 systems

• Suitable for safety-related machinery applications

Power Generation

Used for turbine trip logic, generator protection, and machinery alarm control.

Oil & Gas Industry

Applied in compressors, pumps, and rotating equipment shutdown systems.

Petrochemical Plants

Supports automated protection and alarm functions.

Industrial Manufacturing

Used for motors, gearboxes, and critical production machinery.

Energy Equipment

Provides relay-based control outputs for condition monitoring systems.

Q1: What is the Bently Nevada 3500/33 149986-01 used for?

A:
It is used to provide relay outputs for alarm, shutdown, and control functions in Bently Nevada 3500 machinery protection systems.

Q2: How many relay channels does the 3500/33 149986-01 have?

A:
The module provides 16 independently configurable relay outputs.

Q3: Can each relay be configured separately?

A:
Yes. Each relay output can be programmed independently through 3500 Rack Configuration Software.

Q4: What type of relay contacts are used?

A:
The module uses SPDT (Form C) relay contacts, supporting normally open and normally closed operation.

Q5: Where is the 3500/33 installed?

A:
It is installed in a Bently Nevada 3500 rack in slots located to the right of the Transient Data Interface (TDI) module. 

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