05062

05-05-06 Section 20

Electronic Vibration Switch (EVS)

Also available, optional internal battery powered

EVS switch model, designed for use on

ignition powered systems.

Features

Piezoelectric-crystal internal sensor with built-in microelectronics for reduced noise sensitivity

Electronically integrated output signal that measures and trips on velocity

Adjustable calibrated set-point controls

Shutdown set-point measured in velocity

Optional 4-20 mA output for continuous monitoring capability

Solid-state outputs for setpoint trip

Adjustable time delay to prevent false tripping on high-vibration start-ups or non- repetitive transient events

Self-test and calibration

The Electronic Vibration Switch (EVS) protects against equipment failure by monitoring velocity-based vibration levels and providing an early warning or shutdown when abnormal vibration is detected.

The EVS product can be connected to Murphy’s TTDannunciator, Centurionor Millenniumcontrollers for increased functionality. It also complements Murphy’s VS2shock and excessive vibration/pulsation switch, which is designed to detect an abnormal shock or pulsation due to equipment failure and to shutdown other equipment in a system to prevent further damage.

The EVS product can be used on any equipment where abnormal vibration could lead to equipment damage, including:

The EVS product can monitor and alert the operator of abnormal vibration caused by a variety of possible factors, including:

Cooling fans

 

Imbalance and misalignments

Engines

 

Defective sleeve bearings

Pumps

 

Broken tie down bolts

 

Compressors

 

Defective ball or roller bearings

Gear boxes

 

Gear mesh

 

Motors

 

Blade pass frequencies

Generator sets

 

Detonation

 

 

 

 

 

Broken parts

 

 

 

 

 

 

 

EVS Product Table

 

 

 

 

 

 

 

 

 

 

Model

Power

 

Bandwidth

Analog Out

 

Area Classification*

 

 

EVS-S

24 VDC

 

6-500Hz

No

 

CL I, Gr C,D, Div 2

 

 

EVS-A

24 VDC

 

6-500Hz

Yes

 

CL I, Gr C,D, Div 2

 

 

EVS-SB

Internal Battery

 

6-350Hz

No

 

CL I, Gr C,D, Div 2

 

 

EVS-S-EX

24 VDC

 

6-500Hz

No

 

CL I, Gr C,D, Div 1

 

 

EVS-A-EX

24 VDC

 

6-500Hz

Yes

 

CL I, Gr C,D, Div 1

*Submitted for approval

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time. MURPHY, the Murphy logo, TTD, Centurionor Millenniumand VS2are registered and/or common law trademarks of Murphy Industries, Inc. This document, including textual matter and illustrations, is copyright protected by Murphy Industries, Inc., with all rights reserved. (c) 2006 Murphy Industries, Inc.

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Murphy EVS-SB, EVS-S-EX, EVS-A-EX specifications Section, Model Power Bandwidth, Area Classification

EVS-S-EX, EVS-A, EVS-S, EVS-SB, EVS-A-EX specifications

Murphy EVS (Electronic Vehicle Systems) series, consisting of models EVS-A-EX, EVS-SB, EVS-S, EVS-A, and EVS-S-EX, represents a significant advancement in vehicle control and monitoring technologies designed for various applications. These systems are renowned for their robustness, versatility, and advanced features tailored to improve operational efficiency and vehicle performance.

One of the standout features of the Murphy EVS series is its ability to provide real-time monitoring and diagnostics of vital engine and vehicle parameters. This includes monitoring engine temperature, oil pressure, battery voltage, and fuel levels, ensuring operators are always informed about the vehicle's health. The inclusion of advanced algorithms aids in early fault detection, enabling proactive maintenance and minimizing downtime.

The EVS-A-EX model is specifically engineered for hazardous locations, certified with Ex-proof technology. This makes it suitable for use in environments where explosive gases or flammable substances are present, ensuring safety without compromising functionality. Its rugged construction and high ingress protection ratings also make it reliable in harsh conditions, further enhancing its appeal for industrial applications.

The EVS-SB and EVS-S models are designed with an emphasis on user-friendliness and intuitive interfaces. They come equipped with customizable display options, allowing operators to configure the dashboard according to their specific needs. This flexibility is complemented by multilingual support, catering to a diverse user base across different regions.

On the other hand, the EVS-A and EVS-S-EX models leverage advanced connectivity features, integrating seamlessly with various communication protocols such as CAN and Modbus. This connectivity facilitates easy integration into existing systems, making it ideal for fleet management and telematics applications. Data logging functions allow for historical analysis and reporting, aiding in strategic decision-making and performance optimization.

All models in the Murphy EVS series are built with durability in mind. They feature high-quality components and a design that withstands environmental stressors. This ensures a long service life and minimizes maintenance needs, making them cost-effective solutions for organizations.

In summary, the Murphy EVS-A-EX, EVS-SB, EVS-S, EVS-A, and EVS-S-EX models embody a fusion of advanced technology and practical design, serving a wide range of sectors from construction to transportation. With their focus on safety, connectivity, and real-time diagnostics, these systems empower operators to enhance vehicle performance and operational efficiency in diverse operational environments.