Murphy EVS-2 Specifikace stáhnout pdf (Strana 5)

Section 20 00-02-2003

06-21-10 - 1 -

Product Information

EVS Model EX Overview

The EVS EX is used for high end vibration protection in a low profile, Class 1 Division 1

package. It can be mounted directly to rotating or reciprocating equipment to monitor vibration

and activate an on-board relay when a high vibration level is reached. The EX Model uses a

piezoelectric crystal and state-of-the-art electronics to provide the highest degree of precision

in a stand-alone monitoring system.

Stand Alone Switch

Both the vibration level and alarm time delay can be set in the EVS EX by adjusting two ports

from the front of the switch. The time delay prevents nuisance alarms or shutdowns due to an

inadvertent vibration spike.

The visual vibration alarm indicator is a bright LED and can be reset either locally or remotely.

To provide quick, low cost indication of vibration severity, you can use a basic multi meter to

measure the current vibration level. A multi meter can be used to set a precise vibration alarm

set point.

Preventative Maintenance Tool

The EVS EX can also provide vibration trending data via an optional 4-20mA output. This

signal can be directed to a local indicator, an engine control or a local control system. Trending

data enables the user to plan equipment shutdowns and repairs thereby avoiding catastrophic

failures. The combination of the 4-20mA output and the switch provides trending.

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Murphy EVS-2 Specifikace Strana 5