Specifications

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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