LubriMist
®
Model IVT
Oil Mist Generating System
Installation and Operating Manual
Page 108
of 256
REMOTE COMMUNICATION AND ALARM
The LubriMist® Model IVT is equipped with an alarm contact and a RS-422/485 data
communication terminal. Both can be connected a user provided unit status enunciator located at
a remote location.
The remote alarm contact is a dry FORM-C that can be used to operate remote annunciation to
indicate a unit fault or loss of power alarm. The RS-422/485 is a serial data port, capable of
transmitting at a baud rate up to 19200 bits per second.
Remote Alarm Contact
A basic on-off closure from the dry FORM-C contact can be connected to a user provided alarm.
A user furnished power source must be connected to the common terminal to power the alarm
enunciator. The relay contact is part of the same hermetically sealed relay that operates the red
and green unit status lights. Each time the unit status lights operate so do the remote alarm
contacts. These contacts are located inside of the AC power enclosure located in the left side of
mechanical compartment. See
Remote Communication And Alarm Connections
in the
INSTALLATION section of this manual for terminal location and connection information.
The alarm relay contact arrangement in the diagram below is shown in the shelf position. The
relay is normally energized and de-energizes to alarm.
To avoid risk of explosion hazard, remote alarm
electrical power circuits should be nonincendive.
WARNING
The User Power Source Is
Connected To The Common
Terminal
The Normally Open Contact CLOSES
When The IVT Is Operating Normally.
Contact OPENS At Unit Fault.
The Normally Closed Contact OPENS
When The IVT Is Operating Normally.
Contact CLOSES at Unit Fault
