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Rosemount Tank Radar REX
Chapter 11 Electrical Installation of the
11-16
Installation Manual
308014EN, Edition 4
May 2013
Normally Open/Closed refers to the contact position when a relay is
deenergized. This is also referred to as the Alarm state. The terminology
can be summarized as follows:
Table 11-7. Designations of relay contact positions.
Use the TankMaster WinSetup program to configure the relays.
WinSetup also allows you to manually control the relays.
Normally Closed Normally Open
Closed Open Open Closed
Deenergized Energized Deenergized Energized
Not active Active Not active Active
Alarm (Reset) Normal Alarm (Reset) Normal