
Reference Manual
00809-0600-4026, Rev BA
December 2011
5-17
Rosemount Process Radar
Figure 5-1. Reference Ground when the Load Resistor is Inserted in the negative Line.
Table 5-2. Minimum input voltage (U
i
) at Different Currents.
Configuration Use a HART-compliant master, such as Rosemount Radar Master or a Field
Communicator, to communicate with and verify configuration of the
Rosemount 5400 Series. A full review of configuration methods is available in
Section 5: Configuration in the Rosemount 5400 Series Reference Manual
(Document No. 00809-0100-4026). These instructions are applicable to the
5400 QS option with any differences noted.
Damping
User adjusted damping will affect the transmitter’s ability to respond to
process changes. Therefore, the damping values + response time should not
exceed the loop requirements.
Alarm and Saturation Levels
DCS or safety logic solver should be configured to handle both High alarm
and Low alarm. It is also required that the transmitter is configured for High
alarm (standard alarm setting). Table 5-3 identifies the alarm levels available
and their operation values.
(1)
Rosemount 5400
Series Transmitter
Transmitter
housing ground
Load resistor
Power supply
Single point loop
ground reference
Hazardous approval
Current
3.75 mA 21.75 mA
Minimum input voltage (U
I
)
Non-Hazardous Installations and
Intrinsically Safe Installations
16 Vdc 11 Vdc
Explosion-proof / Flameproof
Installations
20 Vdc 15.5 Vdc
(1) In certain cases, the transmitter does not go into the user defined alarm state. For example,
in case of a short circuit, the transmitter goes into High Alarm state even if Low Alarm has
been configured.
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