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Rosemount Tank Radar REX
Chapter 5 The Remote Display Unit
5-4
Installation Manual
308014EN, Edition 4
May 2013
5.2 Two RDU 40 connected to the same REX
If two RDU 40 are connected to the same REX, one of them has to be
configured as “slave” while the other is “master”. The slave cannot be
configured or controlled individually but follows the master. Only the
LCD-contrast can be individually controlled on the slave RDU 40.
To make an RDU 40 work as a slave it is necessary to move the jumper
at the RDU 40 cover to position 2 (see Figure 5-2).
5.2.1 Data items
24 items are available, dependent of how the REX gauge is equipped:
• Level
• Ullage
• Level rate
• Signal strength
• Volume
• Average temperature
• Temperature spot 1-6
• Analog input 1-2
• Vapour pressure
• Observed density
• Free water level
• Hart slave 1-3
• Relay 1-2